JPH03163454A - Photosensitive body and image forming method using same - Google Patents

Abstract

PURPOSE:To rapidly obtain a stable image by forming a high-contrast polymer latent image with a photosensitive body contg. photosensitive silver halide, an org. silver salt, a reducing agent, a polymerizable precursor of a polymer, a photopolymn. initiator and a thermally diffusible dyestuff. CONSTITUTION:A photosensitive body contg. photosensitive silver halide, an org. silver salt, a reducing agent, a polymerizable precursor of a polymer, a photopolymn. initiator and a thermally diffusible dyestuff is imagewise exposed with light, e.g. in the wavelength range of 400-900nm to generate silver nuclei and the org. silver salt is reduced with the reducing agent by the catalytic action of the silver nuclei by heating to about 60-180 deg.C. The reducing agent is oxidized by oxidation-reduction reaction at the time of the heating to form a distribution of the reducing agent and the oxidized body different from each other in polymn. inhibiting ability to the polymerizable precursor. The photosensitive body is then uniformly exposed with light in a specified wavelength range. By this exposure, the polymerizable precursor is selectively polymerized according to the distribution and a polymer latent image composed of polymerized and unpolymerized parts is formed. The photosensitive body has a photosensitive layer 2 on the substrate 1 and a protective layer 3 may be formed on the layer 2.

Description

[Detailed description of the invention]

[Industrial Application Field] The present invention relates to a silver salt photoreceptor for forming images, and also to an image forming method using the photoreceptor. More specifically, the present invention relates to a photoreceptor containing a dye, and an image forming method for forming an image by transferring the dye in the photoreceptor to an image receptor or the like. [Prior Art] Energy used to form or record images includes light, sound, electricity, magnetism, heat, particle beams (electron beams, X-rays), and chemical energy, among which light,
Electricity, thermal energy, or a combination of these are often used. For example, image forming methods that use a combination of light energy and chemical energy include methods that use silver salt photography and diazo copying paper. Another method that uses a combination of light energy and electrical energy is an electrophotographic system. Furthermore, there are methods using thermal energy such as thermal recording paper and transfer recording paper.
On the other hand, methods using electrostatic recording paper, current-carrying recording paper, discharge recording paper, etc. are known as methods that utilize electrical energy. Among the image forming methods mentioned above, silver halide photography is one that can obtain high-resolution images. However, silver halide photography requires complex development and fixing processes using liquid agents and drying processes for images (prints). Therefore, the development of image forming methods that can perform image formation through simple processing is actively underway. For example, as disclosed in Japanese Patent Laid-open No. 61-69062, a method is known in which a photosensitive reaction of silver halide is used as a trigger to cause a dry (thermal) polymerization reaction to form an image made of a polymer. For example, as a method disclosed in JP-A-62-70836, etc., a latent image is formed by silver nuclei generated from silver halide by image exposure, and a reducing agent is By converting the oxidant into an oxidant that has the same polymerization inhibiting ability as the reducing agent under heating, a difference in polymerization inhibiting ability is created between the reducing agent and the generated oxidant, and a thermal reaction using a thermal polymerization initiator is There is a method of causing a polymerization reaction and forming a latent polymer image depending on the difference in polymerization inhibiting ability formed as a result. From such a volima latent image consisting of polymerized and unpolymerized areas,
A certain image can be obtained from a polymer by selectively adhesively transferring or etching the polymerized or unpolymerized portions. However, these methods have the disadvantage that it is difficult to obtain good contrast in the polymer latent image. This drawback is because the redox reaction to generate the oxidant and the polymerization reaction to form the polymer latent image occur in the same heat treatment process, which causes these reactions to become competitive reactions, resulting in This is thought to be because the reaction does not proceed efficiently. Furthermore, image formation by this method is extremely unstable, for example, even if the amount of the reducing agent is changed by a small amount, the polymerized area may become an exposed area or an unexposed area of the image. Furthermore, JP-A-61-75342 discloses that a reducing agent having polymerization inhibiting ability is consumed in an image form (image-exposed area) during the development process of silver halide to form an oxidized product, and the remaining reducing agent is After inhibiting the polymerization reaction in an image-wise manner (image-unexposed area), light energy is uniformly injected from the outside (full-surface exposure) to cause photopolymerization in the area where the reducing agent has been consumed (image-exposed area). A method of forming a polymerized image is disclosed. The above method has advantages such as excellent sensitivity in latent image writing due to the use of silver halide, and efficient separation of each process from image formation writing to full-surface exposure, but it also has the advantage of having sufficient contrast. It is difficult to obtain a polymer latent image. The reasons for this will be explained below. The reducing agent used in the above method originally has an action as a polymerization inhibitor, and loses its action as a polymerization inhibitor after reducing silver halide. Therefore, sufficient polymerization will not occur unless the reducing agent in the image-exposed area is completely converted into an oxidant. However, if a sufficient amount of thermal energy is applied during development to convert the reducing agent in the exposed areas of the image into an oxidant, a redox reaction will occur even in the unexposed areas of the image. Conversely, if the amount of thermal energy applied during development is reduced to prevent redox reactions from occurring in the unexposed areas of the image, the conversion to oxidants in the exposed areas of the image will not proceed sufficiently. In this case, the image-exposed areas of the redox image are difficult to polymerize, so the amount of light energy applied during full-surface exposure must be increased, and as the amount of applied light increases, unnecessary polymerization occurs in the unexposed areas. As a result, a polymer latent image with sufficient contrast cannot be obtained. [Problems to be Solved by the Invention] An object of the present invention is to provide a photoreceptor that can form a polymer latent image with good contrast faster and more stably, and an image forming method using the photoreceptor. It is in. Furthermore, another object of the present invention is to provide a photoreceptor capable of forming an image with excellent brightness and chroma without being affected by the black color of a silver image, and an image forming method using the photoreceptor. ．． Another object of the present invention is to be able to obtain a high gradation image;
Another object of the present invention is to provide an image forming method in which the gradation control and image forming process can be easily performed, and a photoreceptor used in the method. [Means for Solving the Problems] First, the photoreceptor of the present invention will be explained. The photoreceptor of the present invention is characterized by containing a photosensitive silver halide, an organic silver salt, a reducing agent, a polymerizable polymer precursor, a photopolymerization initiator, and a heat-spreadable dye. In the above photoreceptor of the present invention, silver nuclei are generated by imagewise exposure to light in the wavelength range of 400 nm to 900 nm, and heating at about 60 to 180°C reduces the catalytic action of the reducing agent and the silver nuclei. Organic silver and the like have the characteristic of reducing, and the reducing agent is oxidized by the redox reaction during the heating, and the reducing agent and oxidant have different ability to inhibit polymerization of the polymerizable polymer precursor. The polymerizable polymer precursor is site-selectively polymerized by full-surface exposure to light in the wavelength range of 250 to 700 nm, forming a latent polymer image consisting of polymerized and unpolymerized areas. It has the property of being able to Further, the photoreceptor of the present invention performs image formation by utilizing the difference in thermal diffusivity of the heat diffusible dye between the polymerized portion and the unpolymerized portion of the latent polymer image. By heating a latent polymer image and image receiving paper, etc., and thermally diffusing a heat-diffusible dye according to the appearance of the polymer image onto the side of the image-receiving paper, an image made of the transferred material can be obtained. can. In addition, during the process of site-selectively (desired pattern) polymerization of the polymerizable polymer precursor contained in the photoreceptor, the polymerized portion is the "polymerized portion" as used in the present invention, and the polymerized portion is not polymerized. This part is the "unpolymerized part" in the present invention. The desired pattern consisting of the "polymerized parts" and "unpolymerized parts" is the "polymer latent image" in the present invention. Note that polymerization also includes crosslinking. In addition, the "unpolymerized area" refers not only to the case where no polymerization occurs at all, but also to the case where it is substantially unpolymerized, that is, to the extent that it does not interfere with the good diffusivity of the heat-diffusible dye (it does not affect the image shape). This includes cases where only a certain degree of polymerization occurs. Note that the term "thermally diffusible dye" as used in the present invention means, for example, a heat-diffusible dye, a diffusible coloring agent that reacts with a color developer to exhibit a color after being thermally diffused, and the like. In addition, the "photoreceptor" as used in the present invention is typically one in which a photosensitive layer is formed on a support, but it also includes one in which the photosensitive layer itself has sufficient strength and does not have a support. means. By adopting the above structure, the photoreceptor of the present invention is a photoreceptor that can form images with especially good contrast and density gradation faster and more stably,
Moreover, it is a photoreceptor that can form images with excellent brightness and chroma without being affected by the black color of a silver image. The photoreceptor of the present invention will be explained in more detail below. The thermodiffusible dye contained in the photoreceptor of the present invention is preferably one that diffuses or sublimes from the photoreceptor at a temperature of 70° C. or higher and is transferred to the image receptor, such as monoazo dyes, thiazole azo dyes, anthraquinone dyes, Examples include triallylmethane dyes, rhodamine dyes, naphthol dyes, triarylmethane dyes, fluoran dyes, and phthalide dyes.
Heat-diffusible dyes generally have small molecular weights but high heat-diffusivity, and dyes with more polar groups such as carboxyl groups, amino groups, hydroxyl groups, nitro groups, and sulfone groups have lower heat-diffusivity. Therefore, depending on the crosslinking density and heating conditions in the photoreceptor of the present invention, a dye having a desired thermal expansion property may be appropriately selected based on molecular weight and functional group. As a guideline for selection, a binder with a Tg of around 40°C and a dye are dissolved in an appropriate solvent, a 3 μm layer with a dye content of 25% by weight is formed on a 12 μm thick polyester film, and the layer is placed on a hot plate at 70°C. overlap with the image receptor for 20s
It is preferable that the dye be left on the EC and then peeled off to transfer the dye onto the image receptor. The heat-diffusible dye is preferably a dye that diffuses or sublimes by heat, and particularly preferable yellow dyes include styryl dyes, benzeneazo dyes, quinophthalone dyes, anthrysoguazole dyes, and the like. Magenta bases include anthraquinones:>be}・<
Σ:″:Cl4-..1 CN N.C.,p,〈'c,o,a Heteroazo type, benzeneazo type: etc. As cyan dyes, anthraquinone type: naphthoquinone type, indoaniline type, heteroazo type, For each color of yellow, magenta, and cyan, the above-mentioned dyes may be used alone, or they may be used in combination from the viewpoint of color tone, sublimation property, light resistance, etc. Good. As the heat-diffusible coloring agent, among the coloring agents of pressure-sensitive dyes and heat-sensitive dyes used in pressure-sensitive paper and thermal paper, those that diffuse with heat are used.The guideline for selection is as described above. This method is similar to the selection method for heat-diffusible dyes, except that the image-receiving paper contains a color developer.As such heat-diffusible color formers, ■Triphenylmethane-phthalide type ■Fluoran system ■Phenothiazine system ■Indolyl phthalide system ■Leucosaiichi lamin system ■Subiroviran system ■Rhodamine lactam system ■Triphenylmethane system ■Azaphthalide system [Phase] Chromenoindole system ■Triazene system, etc. are mentioned, and preferred are For example, there are diffusible color formers such as: Zinc oxide, calcium sulfate, novolak type resin, 3.5 Zinc -dimethyl-t-butylsalicylate, etc. can be used.In addition to the heat-diffusible dye, photosensitive silver halide, organic silver salt, and yA, which are contained as essential components in the photoreceptor of the present invention, can be used.
The base material, polymerizable polymer precursor, and photopolymerization initiator are described below. The photosensitive silver halide contained in the photoreceptor of the present invention may be any of silver chloride, silver bromide, silver chlorobromide, silver iodobromide, and silver chloroiodobromide, and the halogen composition within the grains is uniform. Alternatively, a different multiple structure may be adopted. Furthermore, two or more types of silver halides having different halogen compositions, grain sizes, grain size distributions, etc. may be used in combination. Furthermore, these may be spectrally sensitized or chemically sensitized with a dye or the like. The organic silver salts contained in the photoreceptor of the present invention include silver salts with aliphatic carboxylic acids, aromatic carboxylic acids, thiocarbonyl group compounds having a mercabuto group or α-hydrogen, and imino group-containing compounds. Aliphatic carboxylic acids include acetic acid, butyric acid, succinic acid, sebacic acid, adivic acid, oleic acid, linoleic acid, linolenic acid, tartaric acid, balmitic acid, stearic acid, behenic acid, camphoric acid, etc. Silver salts with a small number of carbon atoms are unstable, so those with a moderate number of carbon atoms are preferred. Aromatic carboxylic acids include benzoic acid derivatives, quinolinic acid derivatives, naphthalenecarboxylic acid derivatives, salicylic acid derivatives, gallic acid, tannic acid, phthalic acid, phenyl acetic acid derivatives, biromellitic acid, and the like. As a mercabuto group or a thiocarbonyl group compound having α-hydrogen, 3-mercabuto-4-phenyl-1,2
．． 4-tri7zole, 2-mercabutobenzimidazole, 2-mercabuto-5-aminothiadiazole,
2-mercabutobenzothiazole, S-alkylthioglycolic acid (alkyl group having 12 to 22 carbon atoms), dithiocarboxylic acids such as dithioacetic acid, thioamides such as stearoamide, 5-carboxy-1-methyl-2-phenyl-4-thiol Pyridine, mercaptotriazine, 2-mercaptobenzoxazole, mercapto-xadiazole or 3-amino-5-pendylthio-1.2.4
- Triazole et al., U.S. Pat. No. 4,123,27
Examples include the merkabuto compound described in No. 4. As a compound containing an imino group, Japanese Patent Publication No. 44-30
Penzotriazole or its derivatives described in No. 270 or No. 45-1111416, such as penzotriazole, alkyl-substituted penzotriazoles such as methylbenzotriazole, halogen-substituted penzotriazoles such as 5-chloropenzotriazole, butyl Carboimidobenzotriazoles such as carpoimidobenzotriazole, nitrobenzotriazoles described in JP-A-58-118639, sulfobenzotriazole, carboxybenzotriazole or a salt thereof, or hydroxybenzotriazole as described in JP-A-58-115638 et al., U.S. Patent 4. 220, 1 described in 709
．． Typical examples include 2.4-triazole, IH-tetrazole, carbazole, saccharin, imidazole and derivatives thereof. The reducing agent contained in the photoreceptor of the present invention is a compound (in the present invention, an oxidized Reducing agents capable of producing (collectively referred to as) can be used, and aromatic hydroxy compounds are preferably used. Specifically, for example, chlorohydroquinone,
Hydroquinone, catechol, p-tert-butylcatechol, O-cresol, p-cresol, 2-
tert-butylphenol, 3-tart-butylphenol, 4-t-butylphenol, 4-t-butylphenol
ert-amylphenol, p-penzylphenol,
5-hydroxyhydroindene, orthoxylenol,
3-butyl-4-isobrobylphenol, tetrahydro β-naphthol, 3,4.5-trimethylphenol, 2,3.5-}limethylphenol, tyramine, tyromine, 2-dimethylaminomethylphenol, 2
．． 6-dihydroxymethylphenol, 2,6-bis(
hydroxymethyl)-p-cresol, 6-chlorom
-cresol, 4.6-dichloro10-cresol, 1 acetylphenol% O-hydroxyphenylacetic acid,
p-hydroxyphenylacetic acid, p-methoxyphenol, m-methoxyphenol, resorcinol monoacetate, p-aminophenol, 2.6-dichloroaminophenol, m-pendylaminophenol, 5-
Hydroxy-N,N-dimethyl-o-}-luidine, m
- Phenol derivatives such as (p-toluenesulfonamido)phenol, m-hydroxydiphenylamine, 2,2-bis(p-hydroxyphenyl)butane, bis(p-hydroxyphenyl)methane, such as resorcinol, 5-methylresorcinol, 4 -hexylresorcinol, 3.5-dihydroxybenzoic acid, 2.6-dihydroxybenzoic acid, 2-nitroresorcinol, phloroglucinol, 4-cyclohexylresorcinol, 4
-penzylresorcinol, 3,5-dihydroxybenzoic acid amide, 2,6-dihydroxybenzoic acid amide, 2
- resorcinol derivatives such as acetylresorcinol, 2-acetylphloroglucinol, 2.4.6-trihydroxybenzaltehyde, 4-provinylresorcinol; e.g. α-naphthol, β-naphthol, 2-
Acetyl-a-naphthol, 2-(N,N-diethylaminomethyl)101 naphthol, a-naphthol-4
-sodium sulfonate, 1,3-naphthalenediol, 2-hydroxy-3-naphthoic acid hydrazide, potassium α-naphthol-2-sulfonate, 2-hydroxy-i-naphthaldehyde, 1-nito-2-naphthol,
1.7-naphthalenediol, 2.3-naphthalenediol, 1.7-dihydroxy-6-naphthoic acid, 2.4
- naphthol derivatives such as dichloro-1-naphthol,
phenylene diamine, N. Phenylene diamines such as N-dimethyl p-phenylene diamine and tolylene diamine: 3,4-dimethyl-5-virazolone, 3-methyl-
4-hydroxyethyl-virazolone, 4,4-dihydroxymethyl-1-phenyl-3-virazolidone, 4-methyl-4hydroxymethyl-1-phenyl-3-virazolidone, and the like can be used. However, in terms of further improving the contrast and density gradation of images obtained using the photoreceptor of the present invention, reducing agents of the following general formulas (I), (II), (
Particularly preferred is at least one compound from the group consisting of compounds represented by m), (IV) and (V). That is, the following general formulas (I), (II), (
The compounds represented by H1), (IV), and (V) have the ability to inhibit polymerization when oxidized, and "unexposed areas of the image are polymerized" in the photoreceptor of the present invention.
It is a very suitable compound for imparting the characteristics of
A polymerization inhibitor can be generated partially in a photoreceptor that originally does not have a polymerization inhibitor, and even if only a small amount of polymerization inhibitor is generated, a polymer latent image with sufficient contrast and gradation can be stably formed. Therefore, the final image made of the thermodiffusible dye can also have sufficient contrast and gradation. [However, in the above general formulas (I) to (m), R1R2, R
3. Rl and Ra each independently represent a hydrogen atom, a halogen atom, a hydroxyl group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted aryl group, an alkoxyl group, a substituted or unsubstituted cycloalkyl group. represented, R4 is a hydrogen atom, a halogen atom,
represents a substituted or unsubstituted alkyl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted cycloalkyl group, a carboxyl group, a carboxylic acid ester group, A represents an oxygen atom or a sulfur atom, R represents a hydrogen atom, an unsubstituted 7-alkyl group, a substituted or unsubstituted aralkyl group, n is O or 1, and Z is 2
It is a valent linking group and represents a 7-alkylidene group, an aralkylidene group, or a sulfur atom. [However, in the above general formulas (IV) and (V), R represents a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aralkyl group, and Rt and Ra each independently represent a hydrogen atom, a halogen represents an atom, an alkoxyl group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted aralkyl group, and R9 represents a hydrogen atom, a hydroxyl group, or a substituted or unsubstituted alkyl group. n is O or 1. ] Below, the groups represented by Rl to R6 in general formulas (1) to (V) will be illustrated in more detail. As a halogen atom,
Examples include fluorine atoms, chlorine atoms, bromine atoms, and iodine atoms. The substituted or unsubstituted alkyl group is a straight chain or branched alkyl group having 1 to 18 carbon atoms, preferably, for example, methyl, ethyl, proyl, i-probyl, butyl, t-butyl, i-butyl, amyl. , i-
amyl, hexyl, texyl, hebutyl, octyl, nonyl, dodecyl, stearyl, methoxyethyl, ethoxyethyl, ethoxybutyl, ethoxybutyl, proboxybutyl, i-broboxybentyl, t-butoxyethyl, hexyloxybutyl, hydroxymethyl, Hydroxyethyl, hydroxybrovir, hydroxybutyl,
Hydroxybentyl, hydroxyhexyl, hydroxyhebutyl, aminomethyl, dimethylaminomethyl, aminoethyl, dimethylaminoethyl, diethylaminoethyl, morpholinoethyl, bioveridinoethyl, aminobrovir, diethylaminobuvir, dibrobylaminoethyl, amino Butyl, morpholinobutyl, etc. The substituted or unsubstituted aralkyl group has 7 to 19 carbon atoms, preferably, for example, benzyl, phenethyl, penzhydryl, trityl, phenylbrobyl,
naphthylmethyl, chlorobenzyl, dichlorobenzyl,
These include methoxybenzyl and methylbenzyl. The substituted or unsubstituted aryl group has 6 to 1 carbon atoms.
6, preferably such as phenyl, naphthyl,
anthryl, phenanthryl, tolyl, xylyl, cumenyl, mesityl, chlorophenyl, methoxyphenyl,
Full-fledged Lofenir et al. The alkoxyl group has 1 to 18 carbon atoms, preferably methoxy, ethoxy, broboxy, i-bropoxy, butoxy and the like. The substituted or unsubstituted cycloalkyl group has 5 to 18 carbon atoms, preferably cyclopentyl, cyclohexyl, cyclohebutyl, cyclohexyl, methylcyclohexyl, dimethylcyclohexyl, ethylcyclohexyl and the like. The carboxylic acid ester group has 2 to 10 carbon atoms, preferably methoxycarbonyl, ethoxycarbonyl, propoxycarbonyl, and the like. The alkylidene group has 1 to 8 carbon atoms, preferably methylene, ethylene, butylidene,
Hexylene, etc. The aralkylidene group has 7 to 18 carbon atoms, and preferable examples include penzylidene, naphthylmethylene, p-dimethylaminophenylmethylene, p-hydroxyphenylmethylene, and p-tolylmethylene. Specific examples of particularly preferred compounds (reducing agents) represented by the above general formulas (1) to (rV) are listed below, but the reducing agents used in the present invention are not limited to these. Specific examples of the compound represented by general formula (1) include 1,4-dihydroxynaphthalene, 4-methoxy-1-naphthol, 4-ethoxyl-naphthol, 5
-Methyl-4-methoxy-1-naphthol, 1,5-dihydroxynaphthalene, 4-chloro-1-naphthol,
5-chloro-1-naphthol, 4-methylthiol-1-naphthol, 4-ethylthio-1-naphthol, 6-phenyl-4-methyl-1-naphthol, 6-phenyl-4
-Methoxy-1-naphthol, 6-benzyl-1-naphthol, 6-benzyl-1-naphthol, 6-benzy-4-methoxy-1-naphthol, 4-methyl-1.7
-dihydroxynaphthalene, 4-methoxy-6-benzyl-1-naphthol, 4-methoxy-6-cyclohexyl-1-naphthol, 4-methylthio-6-cyclohexyl-1-naphthol, 3,4-dimethyl-1-naphthol, Examples include 4-pendyloxy-1-naphthol, 2-methyl-4-methoxy-1-naphthol, 5-methyl-4-methoxy-1-naphthol, and the like. Specific examples of the compound represented by the general formula (n) include 8-hydroxyquinoline, 4,8-dihydroxyquinoline-2-carboxylic acid, 4-hydroxyquinoline-2-carboxylic acid, 4-methyl-8- Hydroxyquinoline, 4-benzyl-8hydroxyquinoline, 4.8-
Examples include dihydroxy-5-methylquinoline and 4,8-dihydroxyquinoline. Specific examples of the compound represented by general formula (III) include 2,2°-methylene lebis (6-t-butyl-1,4-dihydroxybenzene). 2.2'
-Methylenebis(4-methoxyphenol). 2.
2-methylenebis(4.6-di-t-butylphenol). 2.2-methylenebis(4-methyl-6-t-butylphenol). 2,2゜-butylidene bis(4-methoxyphenol), 2,2'-butylidene bis(
6-t-butyl-1,4-dihydroxybenzene). 2
, 2°-bis(4-methoxyphenol). 2,2
゜-thiobis(6-methyl-1,4-dihydroxybenzene), 2,2゜-thiobis(4.6-di-t-butylphenol), bis(2-hydroxy-5-methylphenyl)phenylmethane, (3-t -butyl-5-methyl-2-hydroxyphenyl)-(5-methoxy-2
-hydroxyphenyl)methane, 1,1°-dihydroxy-2.2"-binaphthyl, 44"-dimethoxy-1.
Examples include l'-dihydroxy-2.2'-binaphthyl. Specific examples of the compound represented by the general formula (IV) include 1-methoxy-5-hydroxyanthracene, 1-ethoxy-5-hydroxyanthracene, 1-methoxy-4-methyl-5-hydroxyanthracene, and 1-methoxy-5-hydroxyanthracene. Examples include methoxy-4,8-dimethyl-5-hydroxyanthracene. Specific examples of the compound represented by the general formula (V) include 2.2'-methylenebis(4-methoxyphenol). 2.2'-methylenebis(4-ethoxyphenol). 2.2°-methylenebis(4-methylphenol). Examples include 2,2°-methylenebis(4-ethylphenol). As the polymerizable polymer precursor contained in the photoreceptor of the present invention, compounds having at least one reactive vinyl group in one molecule can be used. In addition to acid vinyl groups, vinyl methacrylate groups, allyl vinyl groups, vinyl ethers, etc., ester vinyl groups such as vinyl acetate, etc.
Examples include substituted or unsubstituted vinyl groups that have polymerization reactivity. Specific examples of polymerizable polymer precursors that meet these conditions are as follows. For example, styrene, methylstyrene, chlorstyrene,
Promostyrene, methoxystyrene, dimethylaminostyrene, cyanostyrene, nitrostyrene, hydroxystyrene, aminostyrene, carboxystyrene, acrylic acid, methyl acrylate, ethyl acrylate, cyclohexyl acrylate, acrylamide, methacrylic acid,
Methyl methacrylate, ether methacrylate, probyl methacrylate, butyl methacrylate, phenyl methacrylate, cyclohexyl methacrylate, vinylpyridine,
N-vinylpyrrolidone, N-vinylimidazole, 2-
Monovalent monomers such as vinyl imidazole, N-methyl-2-vinylimidazole, probyl vinyl ether, butyl vinyl ether, isobutyl vinyl ether, β-chloroethyl vinyl ether, phenyl vinyl ether, p-methylphenyl vinyl ether, p-chlorophenyl vinyl ether, etc. For example, divinylbenzene, distyryl oxalate, distyryl malonate, distyryl succinate, distyryl glutarate, distyryl adipate, distyryl maleate, distyryl fumarate, β. Distyryl β-dimethylglutarate, distyryl 2-promoglutarate, distyryl α,α゜-dichloroglutarate,
Distyryl terephthalate, dioxalate (ethyl acrylate), dioxalate (methyl ethyl acrylate), dimalonate (ethyl acrylate), dimalonate (methyl ethyl acrylate), disuccinate (ethyl acrylate), diglutarate ( (ethyl acrylate), adivic acid di(ethyl 7-acrylate), maleic acid di(diethyl acrylate), fumaric acid di(ethyl acrylate),
β. β-dimethylglutarate di(ethyl acrylate)
, ethylene diacrylamide, propylene diacrylamide, 1,4-phenylene diacrylamide, 1,4-
Phenylene bis(oxyethyl acrylate 1-). 1.
4-phenylenebis(oxymethylethyl acrylate), 1,4-bis(acryloyloxyethoxy)
Cyclohexane, 1,4-bis(acryloyloxymethylethoxy)cyclohexane, 1,4-bis(acryloyloxyethoxylupamoyl)benzene, 1.4
-Bis(acryloyloxymethylethoxyrubamoyl)benzene, 1,4-bis(acryloyloxyethoxyrubamoyl)cyclohexane, bis(acryloyloxyethoxycarpamoylcyclohexyl)methane, di(ethyl methacrylate) oxalate, di(
methyl ethyl methacrylate), di malonate (methyl ethyl methacrylate), di malonate (ethyl ethyl methacrylate), di succinate (ethyl methacrylate),
Succinic acid di(methyl ethyl methacrylate), glutaric acid di(ethyl methacrylate), adibic acid di(ethyl methacrylate), maleic acid di(ethyl methacrylate), fumaric acid di(ethyl methacrylate), fumaric acid di(methyl ethyl methacrylate), β, β゜-Dimethylglutarate di(ethyl methacrylate). 1.4-phenylene bis(oxyethyl methacrylate), 1.4
- Bivalent monomers such as bis(methacryloyloxyethoxy)cyclohexane acryloxyethoxyethyl vinyl ether, such as pentaerythritol triacrylate, pentaerythritol trimethacrylate, pentaerythritol tri(hydroxystyrene),
Cyanuric acid triacrylate, cyanuric acid trimethacrylate, l. l. ! - trimethylolpropane triacrylate, l. l, i l-limethylolpropane trimethacrylate, cyanuric acid tri(ethyl vinyl ether), condensation product of reaction product of 1,1.1-trimethylolpropane and 3 times the mole of toluene diisocyanate and hydroxyethyl acrylate, 1,
1. Trivalent monomers such as a condensate of p-hydroxystyrene and a reaction product of 1-trimethylolpropane and 3 times the mole of hexane diisocyanate: For example, a tetravalent monomer such as ethylenetetraacrylamide and brobylenetetraacrylamide Examples include the body. In addition, as mentioned above, these polymerizable polymer precursors are
More than one species may be used. As the polymerization initiator contained in the photoreceptor of the present invention, at least a photopolymerization initiator is used. As a photopolymerization initiator,
Specific examples of carbonyl compounds include carbonyl compounds, sulfur compounds, halogen compounds, redox photopolymerization initiators, etc. Examples of carbonyl compounds include diketones such as benzyl, 4,4'-dimethoxybenzyl, diacetyl, and camphorquinone. : For example, penzophenones such as 4.4゜-diethylaminobenzophenone and 4.4'-dimethoxybenzophenone: For example, acetophenones such as acetophenone and 4゜-methoxyacetophenone: Benzoin alkyl ethers: For example, 2-chlorothioxanthone, 2.5- Thioxanthone such as diethylthioxanthone, thioxanthone-3-carboxylic acid monoβ-methoxyethyl ester: chalcone and styryl ketone having dialkylamino group = 3,3
゜-Carponylbis(7-methoxycoumarin), 3,3
Examples include coumarins such as ゜-carbonylbis(7-diethylaminocoumarin). Examples of sulfur compounds include disulfides such as dibenzothiazolyl sulfide and decyl phenyl sulfide. Examples of halogen compounds include carbon tetrabromide, quinoline sulfonyl chloride, and S-
Examples include triazines. Redox-based photopolymerization initiators include those used in combination with trivalent iron ion compounds (e.g. ferric ammonium citrate) and peroxide, and those used in combination with photoreducible dyes such as riboflavin and methylene blue and triethanolamine. Examples include those using a combination of reducing agents such as ascorbic acid. Furthermore, among the photopolymerization initiators described above, two or more types can be combined to obtain a more efficient photopolymerization reaction. Combinations of such photopolymerization initiators include chalcone and styryl styryl ketones having a dialkylamino group, combinations of coumarins and S-triazines having a trihalomethyl group, and camphorquinone. These photopolymerization initiators may also be used in combination of two or more, heated to promote polymerization, or mixed with a thermal polymerization initiator. The photosensitive silver halide, organic silver salt, reducing agent, polymerizable polymer precursor, photopolymerization initiator, and heat-diffusive dye described above must be contained in the photoreceptor of the present invention as essential components. When forming the photoreceptor of the present invention into a layered structure such as a single layer or multiple layers as desired, the above-mentioned essential components are dissolved in a solvent together with an appropriately used binder, coated on a support and dried, or the binder itself is applied. If the strength is maintained, the above-mentioned essential components can be incorporated into a film or sheet-like product formed from a binder without using a support. The shape of the photoreceptor of the present invention when molded into a desired shape is not particularly limited, such as a flat plate, cylindrical shape, or roll shape. It may be lH as shown in the figure, or it may be multi-layered if necessary. Suitable binders for use in the present invention can be selected from a wide variety of resins. Specifically, cellulose esters such as nitrocellulose, cellulose phosphate, cellulose sulfate, cellulose acetate, cellulose brobyate, cellulose acetate, cellulose myristate, cellulose palmitate, cellulose acetate/brobionate, cellulose acetate/butyrate, etc. Cellulose ethers such as methylcellulose, ethylcellulose, probylcellulose, and butylcellulose; Vinyl resins such as polystyrene, polyvinyl chloride, vinyl boracetate, polyvinyl butyral, polyvinyl acetal, polyvinyl alcohol, and polyvinylpyrrolidone; e.g. Copolymer resins such as styrene-butadiene copolymer, styrene-acrylonitrile copolymer, styrene-butadiene-acrylonitrile copolymer, vinyl chloride-vinyl acetate copolymer; for example, polymethyl methacrylate, polymethyl acrylate, polybutyl acrylate, polyacrylic acid, polymethacrylic acid, Acrylic resins such as polyacrylamide and polyacrylonitrile; for example, polyesters such as polyethylene terephthalate; for example, poly(4,4-isobropylidene, t-=1-1.4-cyclohexylene dimethylene carbonate); Poly(ethylene dioxy-3.3°-phenylene thiocarbonate), poly(4.4'-isobropylidene diphenylene carbonate coated terephthalate), poly(4.4-isobropylidene diphenylene carbonate), poly(4
．． Polyarylate resins such as 4゜-sec-butylidene diphenylene carbonate) and poly(4.4'-isobropylidene diphenylene carbonate blocked oxyethylene): Polyamides: Polyimides: Eboxy resins: Phenol resins Types: e.g. polyethylene,
Examples include polyolefins such as boribropylene and chlorinated polyethylene, and natural polymers such as seratin. Note that the binder is not an essential component in the photoreceptor of the present invention. It is not particularly necessary to contain it if the film properties, dispersibility, sensitivity, etc. of the photoreceptor are sufficient. In addition, colorants, antifoggants, photochromic inhibitors, solid solvents, surfactants, antistatic agents, and the like may be added to the photoreceptor of the present invention, if necessary. The support 3 may be made of metal such as aluminum or copper, polyester film, polyimide film, aromatic polyamide film, polycarbonate film, polysulfone film, polyphenylene sulfite film, polyetherimide film, fluorine film, etc. Plastic film, coated paper, synthetic paper, etc. can be used. The layer structure of the photoreceptor of the present invention will be described in detail below. The first aspect of the layer structure of the photoreceptor of the present invention is the above-mentioned essential components of the photoreceptor of the present invention, such as photosensitive silver halide, organic silver salt, reducing agent, polymerizable polymer precursor, and photopolymerization initiator. This is a photoreceptor (hereinafter referred to as the photoreceptor (A) of the present invention) having a photoreceptor layer containing an agent and a heat-diffusible dye. That is, the photoreceptor (A) of the present invention is a photoreceptor characterized by containing each of the above essential components in the same layer. As shown in FIGS. 1(a) to (c), the photoreceptor of the present invention (
When forming the photosensitive layer 2 in A) into a desired layered form, the above-mentioned essential components are dissolved in a solvent together with an appropriately used binder, and the solution is coated on the support l and dried (FIG. 1(b)). Alternatively, if the binder itself maintains its strength, it can be formed by incorporating the above-mentioned essential components into a film or sheet-like product formed from the binder without using a support (Fig. 1 (a)). ．． The shape of the photoreceptor (A) of the present invention when molded into a desired shape is not particularly limited, such as a flat plate, a cylindrical shape, or a roll shape. The photosensitive layer may be one layer, or may be multilayered if necessary. However, the photosensitive layer of the photoreceptor of the present invention is... 0.1LLm~2mm,
Preferably ILLm~0. It is preferable to form a film to a thickness of about 1 mm before use. In the photoreceptor (A) of the present invention, the support is not essential as described above. However, when a support is provided, the thickness thereof is preferably 2 μm to 2 mm, and preferably 3 μm to 1 mm. Further, the shape thereof is not particularly limited, and may be flat, cylindrical, roll-shaped, etc., depending on the shape of the photosensitive layer. In addition, in order to prevent polymerization inhibition caused by oxygen during polymerization, a protective layer 3 (e.g., polyvinyl alcohol, polyvinylidene fluoride, polyester, etc. It is also possible to provide a N) consisting of (Fig. 1(C)). Incidentally, the support 1 shown in FIGS. 1(b) and 1(c) may also serve the role of such a protective layer. Here, the protective layer desirably has a thickness of 0.1 μm to 200 μm, preferably 0.1 μm to 200 μm.
The thickness is 2 μm to 30 μm, and its shape is not particularly limited, depending on the shape of the photosensitive layer. As mentioned above, the binder suitable for use in the present invention can be selected from a wide variety of resins. Further, the binder is not an essential component in the photoreceptor of the present invention. It is not particularly necessary to contain it if the film properties, dispersibility, sensitivity, etc. of the photosensitive layer of the photoreceptor (A) are sufficient. If necessary, colorants, antifoggants, photochromic inhibitors, solid solvents, surfactants, antistatic agents, etc. can be added to the photosensitive layer. The preferred blending ratio of the above ingredients in the photoreceptor of the present invention is as follows. Preferably 0 silver halide per mol of organic silver salt
．． It is desirable to contain 0.001 mol to 2 mol, more preferably 0.05 mol to 1 mol. Further, it is desirable to contain the reducing agent preferably in an amount of 0.2 mol to 3 mol, more preferably 0.5 mol to 2 mol, per 1 mol of the organic silver salt. In addition, the amount of photopolymerization initiator is preferably 0.0% per mole of reducing agent. It is desirable to contain Ol mol to 10 mol, more preferably 0.5 mol to 5 mol. Furthermore, the photopolymerization initiator is preferably 0.1 to 50 parts by weight, more preferably 0.5 parts by weight, based on 100 parts by weight of the polymerizable polymer precursor.
It is desirable to use 30 parts by weight. Further, the content of the heat-diffusible dye is preferably 3 to 3 parts by weight based on 100 parts by weight of the total of silver halide, organic silver salt, reducing agent, polymerizable polymer precursor, photopolymerization initiator, and appropriately contained binder. 200 parts by weight, more preferably 5-1
OO parts by weight. The second aspect of the layer structure of the photoreceptor of the present invention is similar to the photosensitive layer containing photosensitive silver halide, organic silver salt, and reducing agent, which are essential components of the photoreceptor of the present invention. A photoreceptor having a polymeric layer containing components of a polymerizable polymer precursor, a photopolymerization initiator, and a heat-diffusible dye.[
Hereinafter, the photoconductor (B) invented by Wood will be described. That is, the photoreceptor (B) of the present invention is characterized in that the photoreceptor layer and the polymer layer are functionally separated. As shown in FIGS. 2(a) to (c), each of the photosensitive layers of the photoreceptor (B) of the present invention is prepared by dissolving and dispersing the above-mentioned essential components in water or a solvent together with an appropriately used binder. It can be formed by coating and drying on the support l shown in Figure 2 (b), or if the binder itself maintains its strength, it can be formed on the support L as shown in Figure 2 (a). It is also possible to form a film or sheet-like product formed from a binder by incorporating the above-mentioned ingredients into the film or sheet-like product, without using l. The order in which the photosensitive layer 2 and the polymerized N4 on the support 1 are stacked is not particularly limited. The thickness of both the photosensitive layer and the polymer layer is preferably 0.
1μm to 2mm, preferably ILLm to 0.1mm
It is. The photosensitive layer 1 may also contain an antifoggant, a surfactant, a photographic sensitizer, a stabilizer, a thickener, an antistatic agent, a plasticizer, and an alkali generator. Further, the shape thereof may include a flat plate, a cylindrical shape, a roll shape, etc., and is not particularly limited. The preferred blending ratio of the above components in the photosensitive layer will be described. Silver halide is preferably used in an amount of 0.0% per mole of organic silver salt.
001 mol to 2 mol, more preferably 0.001 mol to 2 mol. It is desirable to contain 0.5 to 1 mole. Further, the reducing agent is preferably contained in an amount of 0.2 to 3.0 mol, more preferably 0.5 mol to 2.0 mol, per mol of the organic silver salt. Furthermore, the polymerization layer may contain a polymerization inhibitor, surfactant, binder, etc. to improve the storage stability of the polymerization layer, if necessary. Regarding the composition of the polymerized layer, the polymerizable polymer precursor 100
The photopolymerization initiator is o. It is preferably 1 to 50 g parts, more preferably 0.5 to 30 parts by weight. In addition, the content of the heat-diffusible dye is the sum of the polymerizable polymer precursor, photopolymerization initiator, and appropriately contained binder.
00 parts by weight, preferably 3 to 200 parts by weight, more preferably 5 to 100 parts by weight. In the photoreceptor (B) of the present invention, the support is not essential as described above, but if the support is included, the thickness is desirably 2 μm to 2 mm, preferably 3 μm to 1 mm, and the shape is , a flat plate, a cylinder, a roll, etc., depending on the shape of the photosensitive layer, and are not particularly limited. In addition, for the purpose of preventing polymerization inhibition caused by oxygen during polymerization,
Photosensitive N2 of the photosensitive member (B) of the present invention molded into a desired shape
A protective layer 3 (for example, N made of polyvinyl alcohol, polyvinylidene fluoride, polyester, etc.) can be provided on top of the protective layer 3 (FIG. 2(c)). Incidentally, the support 1 shown in FIGS. 2(b) and 2(C) may also serve the role of such a protective layer. Here, the protective layer has a content of 0.1 to 20
The thickness is 0 μm, preferably 0.2 to 30 μm, and its shape is not particularly limited, depending on the shape of the photosensitive layer. As mentioned above, the binder suitable for use in the present invention can be selected from a wide variety of resins. As described later, in the photoreceptor (B) of the present invention, the above-mentioned reducing agent contained in the photosensitive layer is oxidized by a redox reaction, and at least the oxidized reducing agent (hereinafter referred to as oxidant) is photosensitive. By moving from layer to layer, the layer can be selectively polymerized to form a polymerized image. Therefore, it is preferable that the photosensitive layer and the polymer layer are directly laminated, but if interlayer movement of the oxidant is possible,
They do not necessarily need to be directly laminated; in other words, a layer such as a film base layer to improve the peeling layer may be provided between the two layers, and it is more preferable that the peeling layer is an antihalation layer. In the photoreceptor (B) of the present invention, since the photosensitive layer and the polymerization layer are separated, each layer can be easily designed. For example, it has the advantage that it becomes easier to control the diffusion speed of the heat-diffusible dye in the polymerization layer and the heat development speed of the photosensitive layer. The third aspect of the layer structure of the photoreceptor of the present invention is the above-mentioned photosensitive silver halide, which is an essential component of the photoreceptor of the present invention.
A photoreceptor having a photosensitive layer containing an organic silver salt, a reducing agent, a polymerizable polymer precursor, and a photopolymerization initiator, and a coloring material layer containing a heat-diffusible dye as an essential component [hereinafter referred to as the photoreceptor of the present invention] body (C)]. That is, the photoreceptor (C) of the present invention is characterized in that the photoreceptor layer and the coloring material layer are functionally separated. As shown in FIGS. 3(a) to (C), the photoreceptor of the present invention (
C) is obtained by dissolving the above-mentioned essential components in a solvent together with an appropriately used binder, and coating and drying each layer of the coloring material layer 5 and the photosensitive layer 2 on the support l as shown in FIG. 3(b). It will be done. In addition, when the strength is maintained by the binder itself, as shown in FIG. 3(a), the above-mentioned essential components are contained in a film or sheet-like product formed from the binder without using the support 1, and then molded. The color material layer 5 and the photosensitive layer 2 may be bonded together. Alternatively, the coloring material layer 5 and the photosensitive layer 2 may be coated and dried on separate supports 1, and the coloring material N5 and the photosensitive layer 2 may be bonded together. Note that the shape of the photoreceptor (C) of the present invention is not particularly limited, such as a flat plate, a cylindrical shape, and a roll shape. The thickness of both the photosensitive layer and the coloring material layer when formed into a layer is preferably 0.1 μm to 2 mm, preferably 1 μm to 2 mm.
It is preferable to form a film to a thickness of about 0.1 mm before use. In the photoreceptor (C) of the present invention, the support is not essential as described above. However, when it has a support, its thickness is desirably 2 μm to 2 mm, preferably 3 μm.
~1 mm, and its shape is not particularly limited, and may be flat, cylindrical, rolled, etc., depending on the shape of the photosensitive layer and coloring material layer. The order in which the photosensitive layer 2 and the coloring material N5 are stacked on the support 1 is not particularly limited. However, this photoreceptor (C)
It is preferable that the photosensitive layer and the coloring material layer are directly laminated. Furthermore, a brimer layer may be provided between the support and the coloring material layer to provide adhesion. In order to prevent polymerization inhibition caused by oxygen during polymerization, polyvinyl alcohol, polyvinylidene fluoride,
A layer made of polyester or the like may be provided on the photosensitive layer, or these films may be laminated on the photosensitive layer. The role of this protective layer is shown in FIGS. 3(b) and 3(c).
) may also have the same functions as the support 1. Here, the protective layer has a thickness of 0.1 to 200 μm, preferably 0.2 to 30 μm, and its shape is not particularly limited, depending on the shape of the photosensitive layer. The preferred blending ratio of the above components in the photosensitive layer of the photoreceptor (C) of the present invention is as follows. Preferably 0.001 mol to 2 mol of silver halide per 1 mol of organic silver salt,
More preferably, the content is 0.05 mol to 1 mol. Further, the reducing agent is preferably 0.2 mol to 3 mol, more preferably 0.5 mol to 1 mol, per mol of the organic silver salt.
It is desirable to contain 2 moles. In addition, the amount of photopolymerization initiator is preferably 0.0% per mole of reducing agent. It is preferable to contain Ol mol to 10 mol, more preferably 0.5 mol to 5 mol. Furthermore, preferably 0.5 mol to 30 mol of a photopolymerization initiator is added to 100 parts by weight of the polymerizable polymer precursor.
More preferably, the content is 0.5 mol to 5 mol. In addition, if necessary, antifogging agents, anti-photodiscoloration agents,
Solid solvents, surfactants, antistatic agents, binders, etc. can also be added to the photosensitive layer. Further, the color material layer of the photoreceptor (C) of the present invention preferably contains, in addition to the heat-diffusible dye, a binder for holding the dye in a layered form. The heat-diffusible dye contained in the coloring material layer of the photoreceptor (C) of the present invention is preferably 3 parts by weight based on 100 parts by weight of the binder.
It is desirable that the amount is 200 parts by weight, more preferably 5 to 100 parts by weight. It is also preferable to use a binder with a low glass transition temperature (g) because it can release the heat-diffusible dye at a lower temperature. In addition, plasticizers, surfactants, adhesion agents, antistatic agents, etc. can be added as necessary. Suitable binders for use in the photosensitive layer and colorant layer of the photoreceptor (C) of the present invention can be selected from the wide range of resins mentioned above. In the photoreceptor (C) of the present invention, the photosensitive layer and the coloring material are separated, so when multicoloring or subtractive color mixing, all the photosensitive layers are the same for the yellow magenta and cyan coloring material layers. It has the advantage that it can be done with The fourth aspect of the layer structure of the photoreceptor of the present invention is the above-mentioned essential components of the photoreceptor of the present invention, such as photosensitive silver halide, organic silver salt, reducing agent, polymerizable polymer precursor, and photoreceptor. A photoreceptor having a photoreceptor layer containing an initiator and a coloring material layer containing a polymerizable polymer precursor, a photopolymerization initiator, and a heat-diffusible dye [hereinafter referred to as the photoreceptor (D) of the present invention]
．． That is, the photoreceptor (D) of the present invention further contains a polymerizable polymer precursor and a photopolymerization initiator in the coloring material layer 5 of the photoreceptor (C) of the present invention shown in FIG. This photoreceptor is characterized by the following. Therefore, the photoreceptor (D) of the present invention
is the same as the photoreceptor (C) of the present invention except for the blending ratio of the essential components contained in the coloring material layer. As the coloring material layer, preferably 0.1 to 50 parts by weight of a photopolymerization initiator per 100 parts by weight of the polymerizable polymer precursor;
It is more preferable to use 0.5 parts by weight to 30 parts by weight. In addition, the content of the heat-diffusible dye is the sum of the polymerizable polymer precursor, photopolymerization initiator, and appropriately contained binder.
00 parts by weight, preferably 3 to 200 parts by weight, more preferably 5 to 100 parts by weight. In the photoreceptor (D) of the present invention, both the photosensitive layer and the coloring material layer contain a polymerization polymer precursor and a photopolymerization initiator. Since a polymerization pattern is formed and the diffusion of the thermodiffusible dye in the polymerization area is controlled in both layers, color fogging in the polymerization area is reduced. The fifth aspect of the layer structure of the photoreceptor of the present invention is a photosensitive layer containing the photosensitive silver halide, an organic silver salt, and a reducing agent, which are essential components of the photoreceptor of the present invention, and a polymerizable polymer. A photoreceptor having a polymer layer containing a precursor photopolymerization initiator and a coloring material layer containing a heat-diffusible dye [hereinafter referred to as the photoreceptor (E) of the present invention]. That is, the photoreceptor (E) of the present invention is a photoreceptor characterized in that it is functionally separated into three layers: the photosensitive layer, the polymer layer, and the coloring material layer. As shown in FIGS. 4(a) to (C), the photoreceptor (E) of the present invention is prepared by dissolving the above-mentioned essential components in a solvent together with an appropriately used binder.
It is obtained by coating coloring material N5, polymer layer 4 and photosensitive layer 2 on support 1 and drying as shown in Figure (b). In addition, if the strength is maintained by the binder itself, as shown in FIG. 4(a), the above-mentioned essential components are contained in a film or sheet-like product formed from the binder without using the support 1, and then molded. The color material layer 5, polymer layer 4, and photosensitive layer 2 may be laminated together.
Alternatively, the coloring material N5, the photosensitive layer 2, and the polymer layer 4 may be coated and dried on separate supports 1, and the layers may be bonded together. Note that the shape of the photoreceptor (E) of the present invention is not particularly limited, such as a flat plate, a cylindrical shape, and a roll shape. The thickness of the photosensitive layer, polymer layer, and coloring material layer when formed in a layered manner is desirably 0.1 μm to 2 mm, preferably 1 μm.
μm~0. It is used by forming a film to a thickness of about 1 mm. In the photoreceptor (E) of the present invention, the support is not essential as described above, but if it has a support, it desirably has a thickness of 2 μm to 2 mm, preferably 3 μm to 1+ am, and its shape is , flat plate, cylindrical, roll, etc., depending on the shape of the photosensitive layer, polymer layer, and coloring material layer, and is not particularly limited. The order of stacking the photosensitive layer 2, polymer layer 4, and coloring material WI5 is as follows:
It is not particularly limited, and in particular, a layer such as a film base layer for improving layer peeling may be provided between both the photosensitive layer and the polymer layer, and the layer peeling layer may be an antihalation layer. Even more preferable. However, as will be described later, in the photoreceptor (E) of the present invention, the above-mentioned reducing agent contained in the photosensitive layer is oxidized by a redox reaction, and at least the oxidized reducing agent (hereinafter referred to as oxidized product) By moving from the photosensitive layer to the polymerization layer,
Since the polymerization layer can be polymerized site-selectively to form a polymerized image, it is preferable that at least the photosensitive layer and the polymerization layer are directly laminated, and particularly preferably, the photosensitive layer,
It is desirable that the polymer layer and color material layer be laminated in this order. Further, a primer layer may be provided between the support and the coloring material layer for imparting adhesion. In order to prevent polymerization inhibition caused by oxygen during polymerization, a layer made of polyvinyl alcohol, polyvinylidene fluoride, polyester, etc. may be provided as the protective layer 3 on the photosensitive layer or polymer layer, or these films may be used as the photosensitive layer. Alternatively, it may be laminated onto a polymer layer (Fig. 4 (C)). The role of the protective layer 31 is shown in FIGS. 4(b) and (c).
The support l may also have the same function. Here, the protective layer has a thickness of 0.1 to 200 μm, preferably 0.2 to 30 μm, and its shape is not particularly limited, depending on the shape of the photosensitive layer, polymer layer, and coloring material layer. do not have. The preferred blending ratio of the above-mentioned components in the photosensitive layer of the photoreceptor (E) of the present invention is as follows. Preferably 0.001 mol to 2 mol of silver halide per 1 mol of Aritsuki silver salt,
More preferably, it is contained in an amount of 0.05 to 1 mole. Further, the reducing agent is preferably 0.2 mol to 3 mol, more preferably 0.5 mol to 2 mol, per mol of organic silver salt.
It is desirable to contain moles. Furthermore, in the polymerization layer, preferably 0.1 to 50 parts by weight, more preferably 0.5 to 30 parts by weight of a photoreinitiator is used per 100 parts by weight of the polymerizable polymer precursor. is desirable. In addition, if necessary, the photosensitive layer may also contain an antifoggant, a surfactant, a photographic sensitizer, a stabilizer, a thickener, an antistatic agent, a plasticizer, and an alkali generator. Furthermore, the polymerization layer may contain a polymerization inhibitor, surfactant, binder, etc. to improve the storage stability of the polymerization layer, if necessary. Further, the color material layer of the photoreceptor (E) of the present invention preferably contains, in addition to the heat-diffusible dye, a binder for holding the dye in a layered manner. The heat-diffusible dye contained in the color material layer of the photoreceptor (E) of the present invention is
Preferably 3 to 200 parts by weight, more preferably 5 to 10 parts by weight
It is desirable that it be 0 parts by weight. Furthermore, it is preferable that the binder used has a low glass transition temperature (Tg) because it can release the heat-diffusible dye at a lower temperature. In addition, plasticizers, surfactants, adhesion agents, antistatic materials, etc. can be added as necessary. Suitable binders for use in the photosensitive layer, polymerization layer and coloring material layer of the photoreceptor (E) of the present invention can be selected from the wide range of resins mentioned above. In the photoreceptor (E) of the present invention, the three necessary elements, ie, the photosensitive element, the polymerization element, and the colorant element, are contained in separate layers, so each layer can be easily designed. In addition, since the polymerization layer and the coloring material layer are separated, there is no desensitization due to the coloring material during polymerization, and there is no need to make the absorption wavelength range of the coloring material and the absorption wavelength range of the photopolymerization initiator different. Therefore, there is a wide range of photopolymerization initiators to choose from. Another advantage is that the polymer layer and photosensitive layer can be shared. The sixth aspect of the layer structure of the photoreceptor of the present invention is that the photosensitive layer containing the above-mentioned photosensitive silver halide, an organic silver salt, and a reducing agent, which are essential components of the photoreceptor of the present invention, and a polymerizable A photoreceptor having a polymer layer containing a polymer precursor and a photopolymerization 8{1 initiator, and a coloring material layer containing a polymerizable polymer precursor, a photopolymerization initiator, and a heat-diffusible dye [hereinafter referred to as the present invention]. referred to as the photoreceptor (F) of the invention]. That is, the photoreceptor (F) of the present invention further contains a polymerizable polymer precursor and a photopolymerization initiator in the coloring material layer 5 of the photoreceptor (E) of the present invention shown in FIG. This photoreceptor is characterized by the following. Therefore, the photoreceptor (F) of the present invention has the same aspect as the photoreceptor (E) of the present invention except for the blending ratio of the essential components contained in the coloring material layer. As the coloring material layer, preferably 0.1 parts by weight to 50 parts by weight, more preferably 0.5 parts by weight to 30 parts of a photopolymerization initiator are used per 100 parts by weight of the polymerizable polymer precursor. ．． In addition, the content of the heat-diffusible dye is the sum of the polymerizable polymer precursor, photopolymerization initiator, and appropriately contained binder.
00 parts by weight, preferably 3 to 200 parts by weight, more preferably 5 to 100 parts by weight. In addition to the advantages listed above for the photoreceptor (E), the photoreceptor (F) of the present invention contains a polymerizable polymer precursor and a photopolymerization initiator in the colorant layer, so that the polymerization pattern is formed by the polymerization of the polymerization layer. It is formed in the same area that corresponds to the pattern, which has the advantage of reducing color fog. The photoreceptor of the present invention is preferably photoreceptors (A) to (F) having the above-described layer structure, but is not limited to these embodiments. This includes all photoreceptors that contain silver oxide, organic silver salts, reducing agents, polymerizable polymer precursors, photopolymerization initiators, and heat-diffusible dyes as essential components. Furthermore, another aspect of the photoreceptor of the present invention is a multicolor photoreceptor that is preferably used especially when forming a multicolor image,
The configuration is detailed below. The above multicolor photoreceptor is a photoreceptor containing the photosensitive silver halide, an organic silver salt, a reducing agent, a polymerizable polymer precursor, a photopolymerization initiator, and a heat-diffusible dye, and has a plurality of areas on a surface. The photoreceptor is characterized in that the color tones of the heat-diffusible dyes arranged in the photoreceptor are different in adjacent regions when transferred to the image receptor by heat. [Hereinafter, the photoreceptor of the present invention (
It is an essential component contained in the photoreceptor (G) of the present invention. The photosensitive silver halide, the organic silver salt, the reducing agent, the polymerizable polymer precursor, the photopolymerization initiator, and the heat-diffusible dye each include:
Compounds similar to those exemplified above are used. Further, among the plurality of regions of the photoreceptor (G) of the present invention, at least the mutually adjacent regions are coated with, for example, yellow,
Contains heat-diffusible dyes such as magenta and cyan that have different tones when transferred to an image receptor using heat, or heat-diffusible dyes that react with a color developer to give different tones after being thermally diffused. are doing. These heat-diffusible dyes are appropriately selected and contained from the specific examples of heat-diffusible dyes mentioned above. In the photoreceptor CG) of the present invention, when a polymerizable polymer precursor, a photopolymerization initiator, and a heat-diffusible dye are contained in the same layer, the maximum absorption wavelength of the photopolymerization initiator contained It is desirable that the absorption maximum wavelength be different from the absorption maximum wavelength of the thermoplastic polymer precursor and the thermodiffusible dye. For example, when forming a multicolor image using a subtractive color mixing method, a photopolymerization initiator having a maximum absorption wavelength of 290 to 380 nm is preferable for the photoreceptor region having a yellow thermodiffusible dye, and more preferably a photopolymerization initiator having a maximum absorption wavelength of 310 to 360 nm.
A photopolymerization initiator with a maximum absorption wavelength is preferred. Similarly, in the photoreceptor area containing the magenta heat-diffusible dye,
A photosensitive initiator having a maximum absorption wavelength of 440 nm, preferably 360 to 420 nm, and a photoreceptor region containing a cyan heat-diffusible dye have a maximum absorption wavelength of 410 to 500 nm, preferably 430 to 490 nm. It is desirable to use a certain photoinitiator. Further, when the heat-diffusible dye is a coupler and a color image is to be formed by a color reaction, a photosensitive initiator having absorption in a region where the absorption wavelength of the coupler does not have to be used may be used. Further, the photoreceptor (G) of the present invention may or may not have a support, and the shape of the photoreceptor is not particularly limited, such as a flat plate, a cylindrical shape, or a roll shape. Even if it is made into a shape, it may be IN, or it may be multi-layered as necessary. In the photoreceptor (G) of the present invention, the binder is not an essential component and does not need to be included if sufficient film properties, dispersibility, sensitivity, etc. can be obtained. In addition, colorants, antifoggants, photodiscoloration inhibitors, solid solvents, surfactants, antistatic agents, and the like may be added as necessary. The layer structure of the photoreceptor (G) of the present invention will be explained in more detail below. The first aspect of the layer structure of the photoreceptor (G) of the present invention is:
As shown in FIG. 5, the photoreceptor (A) of the present invention described above
In the photosensitive layer, a plurality of photosensitive N2-Is each containing yellow, magenta, and cyan heat-diffusible dyes are used.
．． 2-11, 2-III, and these photosensitive N
2-1, 2-II, and 2-TIT are photoreceptors [hereinafter referred to as photoreceptors (G-a) of the present invention] which are arranged in a film form or in sequence on the support 1. Note that the protection WE3 shown in FIG. 5 may be present or absent. Further, if necessary, a photosensitive layer containing a black heat-diffusible dye may be further provided. Furthermore, as mentioned above, the photopolymerization initiator contained in each photosensitive layer (for example, 2-■) of the photoreceptor (G-a) of the present invention is preferably contained in the same layer (2-I). It is desirable that the photopolymerization initiator has a maximum absorption wavelength different from the maximum absorption wavelength of the polymerizable polymer precursor and thermodiffusible dye. All other structures of the photoreceptor (G-a) of the present invention other than those described above may be the same as those of the photoreceptor (A) of the present invention described above. The second aspect of the layer structure of the photoreceptor (G) of the present invention is:
As shown in FIG. 6, the photoreceptor (B) of the present invention described above
4-I, each of which has a plurality of polymerized layers 4-I each containing yellow, magenta, and cyan heat-diffusible dyes.
, 4-U, 4-m, and these polymer layers 4-1, 4-m
-II. A photoreceptor in which 4-■ is sequentially arranged in the form of a film or on a support 1 [hereinafter referred to as the photoreceptor of the present invention (G-b
). In addition, the protective layer 3 shown in FIG.
It doesn't have to be there or not. Furthermore, if necessary, a polymer layer containing a black heat-diffusible dye may be further provided. Furthermore, as described above, the photopolymerization initiator contained in each polymerization N (for example, 4-■) of the photoreceptor (G-b) of the present invention is preferably contained in the same layer (4-I). It is desirable that the photopolymerization initiator has a maximum absorption wavelength different from the maximum absorption wavelength of the polymerizable polymer precursor and thermodiffusible dye. All other structures of the photoreceptor (G-b) of the present invention other than those described above may be the same as those of the photoreceptor (B) of the present invention described above. The third aspect of the layer structure of the photoreceptor (G) of the present invention is:
As shown in FIG. 7, the photoreceptor (C) of the present invention described above
, the coloring material layer includes a plurality of coloring material layers 5-I each containing yellow, magenta, and cyan heat-diffusible dyes.
, 5-11, 5-II [these color material layers 5-
1, 5-II, and 5-111 are sequentially arranged in a film form or on a support 1

[Hereinafter, the photosensitivity of the present invention
It is called the body (G-C). In addition, the protection shown in Figure 7
Protection FrI3 may or may not be present. In addition, if necessary, it also contains black heat-diffusible pigment.
A color material layer may also be provided. Note that configurations other than those described above of the photoreceptor (G-c) of the present invention
All may be the same as the photoreceptor (C) of the present invention described above. Fourth aspect (fourth aspect) of the layer structure of the photoreceptor (G) of the present invention
7) is the photoreceptor (D) of the present invention described above.
In this case, the color material layer is yellow, magenta, and cyan.
a plurality of coloring material layers 5-I each containing a heat-diffusible dye;
5-II and 5-m, and these coloring material layers 5-I
, 5-It, 5-It, in the form of a film or on the support 1
Photoreceptors arranged in sequence [hereinafter referred to as photoreceptors of the present invention (G
-d)]. Note that the protective layer 3 shown in FIG.
may or may not be present. In addition, if necessary, it also contains black heat-diffusible pigment.
A color material layer may also be provided. Furthermore, each coloring material layer (for example,
For example, the photopolymerization initiator contained in each region of 5-■) is
As mentioned above, it is preferably contained in the coloring material layer (5-I).
Maximum absorption wavelength of thermospreadable dye and polymerizable polymer precursor
It is said to be a photopolymerization initiator with a maximum absorption wavelength different from that of
It is desirable that Incidentally, the photoreceptor (G-d) of the present invention may have a structure other than that described above.
All may be the same as the photoreceptor (D) of the present invention described above. The fifth aspect of the layer structure of the photoreceptor (G) of the present invention is:
As shown in FIG. 8, the photoreceptor (E) of the present invention described above
In this case, the color material layer is yellow, magenta, and cyan.
a plurality of coloring material layers 5-1 each containing a heat-diffusible dye;
5-II. 5-II1, and these coloring material layers 5-1
, 5-Tl. 51 nl in film form or on support 1
The photoreceptors [hereinafter referred to as photoreceptors of the present invention (hereinafter referred to as photoreceptors of the present invention)] are sequentially arranged in
G-e)]. In addition, the protection H shown in FIG.
3 may or may not be present. Also, if necessary, further contains black heat-diffusible pigment.
A color material layer may also be provided. Note that the photoconductor (G-e) of the present invention may have a configuration other than that described above.
All may be the same as the photoreceptor (E) of the present invention described above. The sixth aspect (eighth aspect) of the layer structure of the photoreceptor (G) of the present invention
The above-mentioned photoreceptor of the present invention (described below with reference to the figure) is
In F), the color material layer is yellow, magenta, and
A plurality of coloring material layers 5 each containing a heat-diffusible pigment of Anne
-1, 5-11, 5-ITI, these colorants @
5-1. 5-11,5-m is film-like or supported
The photoreceptors [hereinafter referred to as photoreceptors of the present invention] are sequentially arranged on the body 1.
It is called the light body (G-f). Note that the protective layer 3 shown in FIG. 8 may be present or absent.
stomach. In addition, if necessary, it also contains black heat-diffusible pigment.
A color material layer may also be provided. Furthermore, each coloring material N (for example,
For example, the photopolymerization initiator contained in 5-■) is as described above.
preferably a thermodiffusible dye and a polymerizable polymer precursor
Photopolymerization with absorption maximum wavelength different from that of
It is desirable to use it as an initiator. Note that configurations other than those described above of the photoreceptor (Gf) of the present invention
All may be the same as the photoreceptor (F) of the present invention described above. The photoreceptor of the present invention is particularly suitable for forming multicolor images.
It is preferable that the photoreceptor is the photoreceptor CG described above.
Furthermore, it is desirable that the photoreceptors (G-a) to (G-f)
However, it is not limited to these aspects, and the above-mentioned
As mentioned above, photosensitive silver halide, organic silver salt, reducing agent, heavy
Synthesizable polymer precursor, photoinitiator and heat diffusible dye
If the photoconductor contains it as an essential component, it will contain all of it.
nothing. The photoreceptor of the present invention has the structure detailed above.
to create images with good contrast faster and more safely.
A bright image can be formed without being affected by the black color of the silver image.
High gradation images that can form images with excellent clarity and saturation
Although it is a photoreceptor that has effects such as being able to obtain
In order to improve contrast and density gradation, the present invention
By site-selectively polymerizing the photoreceptor, the following formula
A polymer polymer consisting of a polymerized part and an unpolymerized part that satisfies (A)
It is desirable that it be a photoreceptor that forms an image. Tgx-Tg+≧30℃ (A)(
In the formula, Tg+ represents the glass transition point of the unpolymerized portion,
Tgx indicates the glass transition point of the polymerized portion. ) That is, the photoreceptor of the present invention has a wavelength range of 250 to 700 nm.
By being exposed to a certain amount of light, the above formula (A) is satisfied.
The photoconductor may form a polymerized portion and an unpolymerized portion.
preferable. Furthermore, if I were to explain it concretely, it would be the feeling I mentioned earlier.
Light body (A). (G-a). In (C) and (G.-c)
In some cases, the photosensitive layer is polymerized in a site-selective manner.
Thus, a polymerized portion and an unpolymerized portion satisfying the above formula (A) are formed.
The photoreceptor (B) described above is preferably a photoreceptor that
．． In (G-b), (E) and (G-e), the
By site-selectively polymerizing the polymer layer, the above formula
A photoreceptor that forms polymerized areas and unpolymerized areas that satisfy (A).
It is preferable that In addition, the photoreceptors CD) and (G
-d), one of the photosensitive layer or the coloring material layer;
Particularly preferably, both the photosensitive layer and the coloring material layer are selectively formed.
By polymerizing, a polymerized part that satisfies the above formula (A) and
It is preferable that the photoreceptor forms an unpolymerized part, and the above-mentioned
In the photoreceptors (F) and (G-f), the polymerization
or the colorant layer, particularly preferably the polymeric layer and the colorant layer.
By site-selectively polymerizing both layers of the material, the upper
A photoreceptor having a polymerized portion and an unpolymerized portion satisfying the formula (A)
It is preferable that Furthermore, the above formula (A) satisfies Tgx Tgz≧50°C.
It is particularly preferable that the value of Tgl is lower.
Dispersible dyes are well diffused and the optical density on the image receptor is high.
, or is preferable because sublimation removal is performed well.
However, if the Tgl value is too low, the area becomes liquid.
This is undesirable as it makes handling difficult. therefore,
The desirable Tgl value is about -10 to 80°C. on the other hand,
The value of Tg2 is preferably about 80 to 220°C. The above-mentioned Tg. Polymerizable poly that meets Tgz
A combination of a polymer layer containing a polymer precursor, a photosensitive layer, and a color material layer.
As a layer, a binder that maintains the shape of the layer and a polymer
A polymerizable polymer that polymerizes and/or crosslinks and hardens by
It is preferable to use a reamer precursor, especially one with a glass transition temperature
A binder with a high Tg and a polymerizable polymer precursor
Although it is liquid, it becomes a high Tg polymer after polymerization.
and multifunctional polymerizable polymer precursors.
Combination with a material that polymerizes to form a cured product with high crosslink density
It is preferable to have it aligned. In addition, in a configuration in which the polymer layer and the color material layer are separated, five colors can be used.
The material layer has a Tg of
Preferably, the layer is formed with a low binder;
The polymer layer is made of a binder with high Tg and polymerizability as mentioned above.
Combinations of polymer precursors are preferred. In the photoreceptor of the present invention, although not an essential component,
Providing the above-mentioned protective layer protects the silver latent image area by heating.
It increases the heat resistance during the reaction between the Aritsuki silver salt and the reducing agent, and increases the photosensitive
It prevents layer displacement during layer heating, and during polymerization (polymer latent).
Prevents polymerization inhibition caused by oxygen (during image formation) and speeds up the polymerization rate.
This is preferable for speeding up the process. However, the protection exemplified above
The layer is not transparent to thermally diffusible dyes, so
When transferring heat-diffusible dyes to an image body, removal (peel-off or dissolution) is necessary.
(removal), which complicates the image forming process. Therefore, when providing a protective layer on the photoreceptor of the present invention, it is necessary to
Using heat, a protective layer is created that allows the heat-diffusible dye to pass through.
It is preferable. Depending on the type of binder that makes up the protective layer and the thickness of the layer,
It varies, but heat diffusible dyes can be made by heating below 60℃.
Photoreceptors with a transparent protective layer have poor shelf life and
It is unfavorable in terms of polymerization and polymerization properties. As a binder that is generally suitable for use as a protective layer
For example, cellulose acetate, cellulose brobionate
, cellulose butyrate, cellulose myristate, palmichi
cellulose acetate, cellulose acetate/probionate, acetic acid
・Cellulose esters such as cellulose butyrate: e.g.
Polystyrene, polyvinyl chloride, polyvinyl acetate, poly
Vinyl butyral, polyvinyl acetal, polyvinyl
Vinyl resins such as pyrrolidone: e.g. styrene-butylene
Diene copolymer, styrene-acrylonitrile copolymer
mer, styrene-butadiene-acrylonitrile copolymer
Copolymerization of vinyl chloride-vinyl acetate copolymers, etc.
Resins: e.g. polymethyl methacrylate, polymethyl
Acrylate, polybutyl acrylate, polyacrylic
acid, polymethacrylic acid, polyacrylamide, polyacrylate
Acrylic resins such as rylonitrile: Epoxy resins:
Phenolic resin R: e.g. polyethylene, polypropylene
polyolefins such as polyethylene, chlorinated polyethylene, etc.
Examples include polyesters and polyesters. Two or more of these may be used without losing their characteristics.
It may be used in combination with PVA, gelatin, etc. as long as the
stomach. Among these, cellulose esters, polyvinyl
Butyral, polyvinyl acetal, acrylic resins
This is preferable in terms of the transparency of heat-diffusible dyes. Furthermore, it has good transmission efficiency and is receptive even at high transfer temperatures.
If it is kept on the image side, please use polyester to prevent FJ from sticking.
Vinyl butyral and polyvinyl acetal are particularly preferred.
stomach. The transmission efficiency of thermodiffusible dyes depends on the type of binder used.
In addition, it also depends on the thickness of the protective layer, and in the present invention
The thickness of the protective layer is preferably 01 to 200 μm1
preferably 02 to l○μm, more preferably 0.5 to 4μm
be. In addition, surfactants, surface smoothing agents, etc. are added to the protective layer.
It is also possible to add Next, how to form an image using the photoreceptor of the present invention described above.
Explain the law. The image forming method of the present invention includes (a) photosensitive silver halide, organic silver salt, reducing agent, polymerizable
Contains polymer precursor, photoinitiator and heat diffusible dye
(b) the process of imagewise exposing the photoreceptor; (b) the process of heating the photoreceptor;
(c) at least before the polymerizable polymer of the photoreceptor;
The entire layer containing the precursor and the photopolymerization initiator is exposed to light.
(d) at least the heat-diffusible dye of the photoreceptor;
By heating the layer containing the heat-diffusible dye,
An image forming method comprising a process of transferring an image to an image receptor [
Hereinafter, it will be referred to as the image forming method (A) of the present invention. More specifically, the image forming method (A) of the present invention comprises (a) photosensitive silver halide, organic silver salt, reducing agent, polymerizable
Contains polymer precursor, photoinitiator and heat diffusible dye
The photoreceptor is imagewise exposed to form a latent image with silver nuclei.
(b) heating the photoreceptor on which the latent image formed by the silver nuclei is formed;
, by forming an oxidant of metallic silver and said reducing agent.
, amplifying the latent image by the silver nucleus into a latent image by the oxidant.
(c) formation of a latent image pattern by the reducing agent and the oxidant;
By exposing the entire surface of the photoconductor that has been
Depending on the distribution of the reducing agent and the oxidant, the area where the oxidant is present
The polymerizability of the site where the reducing agent is present is inhibited.
Polymerize the polymer precursor to form a latent polymer image pattern
(d) on the photoreceptor on which the polymer latent image pattern is formed;
By stacking an image receptor on the photoreceptor and heating it, the photoreceptor
The thermodiffusible dye contained in the latent image pattern of the polymer
Diffusion transfer is performed on the image receptor according to the
An overheating process that forms an image consisting of a heat diffusible dye on a portion of the image body.
This is an image forming method that has several steps. The method (A) of the present invention including each of the above steps (a) to (d)
In this case, latent image writing occurs due to the use of silver halide.
Excellent sensitivity in Especially those who form polymers
If the formula is full exposure, it will take only a short time and the image formation time will be reduced.
Efficient processing time in each process from writing to development
Filtration that is well shortened and produces oxidant from reducing agent
The process of forming the polymer and the process of shaping the polymer are effectively separated.
contrast between exposed and unexposed areas.
can be obtained stably. In addition, as mentioned earlier, the overlapped portion and unoverlapping portion of the polymer latent image are
Thermodiffusible dyes generated due to the degree of crosslinking at joints, etc.
Depending on the difference in thermal diffusivity, dyes are selected for image-receiving paper, etc.
Because it can be diffusely transferred, the silver image and color formed during the amplification process can be
The images are separated and the resulting color image is clear and clear.
In addition to having excellent brightness, it also has excellent density gradation.
Become. The outline of each process included in the method (A) of the present invention is shown below.
This will be explained with reference to the surface. FIGS. 9(a) to 9(e) show cases in which the photoreceptor (A) of the present invention was used.
A diagram for explaining the image forming method (A) of the present invention in the case of
FIGS. 10(a) to (e) use the photoreceptor (B) of the present invention.
A diagram for explaining the image forming method (A) of the present invention when
, FIGS. 11(a) to (e) show cases in which the photoreceptor (C) of the present invention is used.
For explaining the image forming method (A) of the present invention when
12(a) to (e) show the photoreceptor (D) of the present invention.
The image forming method of the present invention, (A) when using
Figures 13(a) to 13(e) are for explaining the photoreceptor of the present invention (
Explanation of the image forming method (A) of the present invention when using E)
Figures 14(a) to 14(e) show the photosensitive method of the present invention.
The image forming method (A) of the present invention when using the body (F)
This is a diagram for explanation. In the image forming method (A) of the present invention, the above (a)
This is the process of writing an image using light.
As shown in (a) of Figures 9 to 14, an image is formed on the photosensitive H2.
Expose the desired image using light exposure or digital exposure. As a result, silver is deposited on the photosensitive silver halide in the exposed area 1-a.
A nucleus 6 is generated, which forms a latent image. In addition, the generated
The silver nucleus 6 is formed by combining the organic silver salt and reducing agent contained in the photosensitive layer 2.
catalyzes the thermal reaction of The exposure in writing this latent image
The lighting conditions are such that the resulting polymer latent image has sufficient contrast.
Conditions are set in the photosensitive layer to obtain the desired characteristics such as
Select as appropriate depending on the concentration of silver halide contained in the
Just use it. Since photosensitive silver halide is used in this process,
Highly sensitive writing is possible. In addition, support 1 and protection
Layer 3 is an essential component in the photoreceptor of the present invention.
However, it is possible to perform the above exposure on a photoreceptor having these.
In the case where the support 1 and the protective layer 3 have light transmittance
What you have will be used. To describe the above exposure conditions specifically, silver halide is
Light of a sensitive wavelength, for example, silver halide is silver chloride.
If unsensitized, light up to approximately 400 nm, halogenated
If silver is unsensitized with silver bromide, light up to approximately 450 nm
, if the silver halide is unsensitized with silver iodobromide, approximately
These silver halides are sensitized to light up to 480 nm.
If there is a
(in some cases, light with a wavelength of up to about 1000 nm), the surface of the photosensitive layer
The light is transmitted with an energy of up to 1 mJ/cm”
Sources such as sunlight, tungsten lamps, mercury lamps,
Halogen lamps, xenon lamps, fluorescent lamps, LEDs,
Expose using a laser light source, etc. Next, the above process (b)
When the photosensitive N2 on which the latent image is formed is heated, the second
As shown in FIGS. 9 to 14 (b), the exposure area 1-a is
The silver nucleus 6 selectively acts as a catalyst, and the organic silver salt and the reduced
At the same time, the organic silver salt is reduced to silver atoms by reacting with the base agent.
Then, the reducing agent is oxidized to form oxidant 7. As a result, oxidation
an exposed area 1-a containing the body 7 and an unexposed area 1 containing the reducing agent 8
-b is formed. Photosensitivity [Reducing agent 8 used in 2 is oxidized
A polymerizable polymer precursor different from the reducing agent by
It has the ability to inhibit polymerization in the body, preferably the above-mentioned
These are compounds represented by general formulas (1) to (V). The photosensitive layer 2 has a structure depending on the distribution of the reducing agent 8 and the oxidant 7.
A latent image is formed based on the difference in the ability to inhibit polymerization. Also, (b) in Figures 10, 12, 13, and 14
As shown in , the photoreceptor of the present invention (Bl
．． When (D), (E) and (F) are used, the photosensitive layer
2, the weight formed by the distribution of reducing agent 8 and oxidant 7
At the same time, an image consisting of a difference in binding ability is formed, and the oxidant 7
Polymerized N4 by thermal diffusion etc. of at least a part of
side (when using the photoreceptors (B) and (E) of the present invention, the first
0(b) and FIG. 13(b)), coloring material layer 5 side (invention
When using the photoreceptor (D) of FIG. 12(b)) or
Both layers of polymerization layer 4 and coloring material layer 5 (photoreceptor (F) of the present invention)
If used, it will move to Figure 14(b)). However, the present invention is not limited to this embodiment.
, an embodiment in which the reducing agent 8 and the oxidizing substance 7 are transferred together,
The desired polymer layers 4 and 4 can also be formed by transferring them.
and/or the weight of the polymerizable polymer precursor in the coloring material layer 5.
It is possible to form images with different matching abilities. The heating conditions in this process (b) are effective for image formation.
Conditions necessary to form a difference in polymerization inhibition ability within the photosensitive layer
Select and do this as appropriate. Generally speaking, it depends on the composition of the layer, etc.
No, but 60℃ to 200℃, more preferably 70℃
and 150°C, 0. Ol seconds to 5 minutes, more preferably 1
Heat treatment can be performed for 60 seconds to 60 seconds. Heating methods include hot plates, heat rolls, and saunas.
In addition to the method of using a thermal head etc.,
There are methods that heat the element by passing electricity through it, or by irradiating it with laser light.
There is also a heating method. Next, in the above step (C), the
When energy is applied to the photoreceptor, (
As shown in c), the site 1-A where oxidant 7 exists and the acid
Formation state of polymer in site 1-B where compound 7 does not exist
There is a difference between
1-B polymerizes. In addition, in this process, the Tg of the polymerized part 1-B and the unpolymerized
The difference between Tg+ of joint 1-A is 30℃ or more.
Forming a latent image results in an image with good contrast.
This is preferable because Also, the lower the TgI value, the better the thermodiffusible dye will diffuse.
, the optical density on the image receptor increases, or sublimation removal occurs.
It is preferable because it is performed well. However, T g I
If the value is too low, the area becomes liquid and difficult to handle.
This is undesirable in that it becomes Therefore, the value of Tg+ is
A temperature of -10 to 80°C is desirable. On the other hand, the value of Tg2 is
A temperature of about 80 to 220°C is desirable. In the case of photopolymerization, preferably 250 to 70
0 nm, more preferably 300 to 500 nm.
energy up to 500 mJ/am”
Expose the entire surface using ghee. In addition, in steps (a) and (C), light of the same wavelength
Even when using silver halide, silver halide is usually more effective than photoinitiators.
Since it has high photosensitivity, light is not used in the above step (a).
A latent image created by silver nuclei that requires light intensity that does not cause polymerization
can be written. Furthermore, in the step (c) above, there is a method of heating the photosensitive layer during exposure.
You may also use steps. Even if this is reheated, the above (b)
) may be used to utilize residual heat from the process. Next, in the process of (d), (d) of FIGS.
), the image receiving layer 11 formed on the base 10 and
The photosensitive layer 2 or polymer layer 4 is laminated and heated appropriately. When the photoreceptor (A) of the present invention is used, (d
), there is a thermodiffusible dye 9 in the photosensitive layer 2.
The dye 9 in the polymerized portion 1-B in the photosensitive layer 2 is
Compared to dye 9 in polymerization part 1-A, its thermal diffusivity
has decreased, so by the above heating, the unpolymerized part 1-A
Dye 9 is selectively diffused and transferred. Note that the product here
The layer means not only complete adhesion, but also the transfer of dye 9.
It also includes the meaning of getting as close as possible. Furthermore, in this figure
After removing the protective layer 3, the photosensitive layer 2 and the image receiving layer 11 are removed.
As mentioned earlier, as a protective layer, heating
Sometimes, if a protective layer that allows the heat-diffusible dye 9 to pass through is used.
, there is no need to remove the protective layer 3. When the photoreceptor (B) of the present invention is used, FIG.
), the thermodiffusible dye 9 is present in the polymerized layer 4.
and the thermally diffusible dye in the polymerization part 1-B in the polymerization layer 4.
9 is compared with heat diffusible dye 9 in unpolymerized part 1-A.
Since the thermal diffusivity has decreased, the above heating causes
, the heat-diffusible dye 9 in the unpolymerized portion 1-A is selectively diffuse-transferred.
do. In addition, in this figure, after removing the protective layer 3, the polymerization
Layer 4 and image-receiving layer 1l are laminated, but the first layer is the protective layer.
Use a material that can pass through the heat-diffusible dye 9 when heated, as described above.
If so, there is no need to remove the protective layer 3. When the photoreceptor (c) of the present invention is used, FIG.
), the heat-diffusible dye 9 is present in the color material layer 5.
in the coloring material layer 5 corresponding to the polymerized portion 11B in the photosensitive layer 2.
Dye 9 is compared with Dye 9 corresponding to unpolymerized part 1-A.
Since the thermal diffusivity is suppressed in the photosensitive layer 2,
Due to the above heating, the dye 9 in the unpolymerized part 1-A is selectively expanded.
Scatter transfer. In addition, in FIG. 11(d), after removing the protective layer 3,
Although the optical layer 2 and the image receiving layer 11 are laminated, as mentioned above,
, as a protective layer that allows the thermal diffusible dye 9 to pass through when heated.
If a protective layer is used, removal of protective layer 3 is not necessary.
．． When photoreceptor D of the present invention is used, (d) in FIG.
As shown in FIG.
However, the dye 9 in the polymerized portion 1-B in the color material layer 5 is unpolymerized.
Compared to dye 9 in joint 1-A, its thermal diffusivity is
Since the amount of unpolymerized portion 1-A decreases, the above heating causes the unpolymerized portion 1-A to decrease.
Dye 9 is selectively diffused and transferred. Note that the laminated
This means that it not only allows for complete adhesion, but also enables the transfer of substance 9.
It also has the meaning of bringing it closer to a possible level. Furthermore, in Figure 12
After removing the protective layer 3, the photosensitive N2 and the image receiving layer 11 are
As mentioned earlier, as a protective layer, heating
Sometimes, if a protective layer that allows the heat-diffusible dye 9 to pass through is used.
, there is no need to remove NuFF3. When the photoreceptor (e) of the present invention is used, FIG.
), the heat-diffusible dye 9 is present in the color material layer 5.
in the coloring material layer 5 corresponding to the polymerized portion l-B in the polymerized layer 4.
Dye 9 is compared with Dye 9 corresponding to unpolymerized part 1-A.
Since the thermal diffusivity is suppressed in the polymer layer 4,
Due to the above heating, the dye 9 in the unpolymerized part 1-A is selectively expanded.
Scatter transfer. In addition, in FIG. 13, after removing the photosensitive layer, the polymer layer is removed.
Although the image receptor is directly laminated with the photosensitive layer, it is not heated
It is also possible to perform transcription. When removing the photosensitive layer
, the binder used in the photosensitive layer is easily extracted from the polymerized layer.
It goes without saying that you should use something that can be peeled off. Furthermore, regarding the protective layer 3, the above-mentioned additives are used as the protective layer.
If you use a material that can transmit the thermodiffusible dye 9 when heated
, the protection layer 3 does not need to be removed. When the photoreceptor (F) of the present invention is used, (
As shown in d), the coloring material WI5 contains a thermodiffusible dye 9.
exists, and the dye 9 in the polymerized part l-B of the coloring material layer 5 is
Compared to dye 9 in polymerization part 1-A, its thermal diffusivity
has decreased, so by the above heating, the unpolymerized part 1-A
Dye 9 is selectively diffused and transferred. In addition, here,
Lamination means not only complete adhesion, but also transfer of material 9.
It also means to get as close as possible. Furthermore, the 14th
In the figure, after removing the photosensitive layer, the polymerized layer and image receptor are removed.
Although it is directly laminated, thermal transfer is performed with the photosensitive layer still in place.
It is also possible. When removing the photosensitive layer,
Although the binder used can be easily peeled off from the polymeric layer,
It is natural to use . Furthermore, regarding the protective layer 3, the above-mentioned additives are used as the protective layer.
If you use a material that can transmit the thermodiffusible dye 9 when heated
, HoiJ[3 does not need to be removed. The polymerization part 1-B reduces the diffusivity of the thermodiffusible dye 9.
The reason for this is that the polymerizable polymer precursor polymerizes,
Or if it contains a multifunctional polymerizable polymer precursor
By crosslinking, even when heated, the polymerization part
The molecular chain of the polymer in 1-B is difficult to relax, and the dye spreads easily.
This is because it prevents dispersion. The image receiving layer of the image receptor used in this step (d) is
Dispersible dyes can be well diffused and transferred to form good images.
There is no particular limitation as long as it is suitable for use, such as polyester.
Tel resin, polycarbonate resin, polyvinyl acetate resin
, polyurethane resin, polyamide resin, polycaprolac
Uses various materials such as tonne resin, polyvinyl chloride resin, etc.
can do. In addition, the heating temperature in this process (d) is
The optimum
Suitable values vary, but desirably 70 to 250°C, preferably
The temperature is between 80 and 200℃. In addition, the above heating is as follows (
It is best to do this so as to satisfy 81. ? gl ≦T t r a■ ≦Tg2
...(B) (wherein, T traR* is the photoreceptor's
Tgl indicates the temperature, and Tgl is the glass temperature of the unpolymerized part of the latent polymer image.
T g x indicates the superposition point of the polymer latent image.
The glass transition point of is shown. ) The relationship of the above formula (B) will be explained in detail below with reference to the drawings.
I will explain in detail. FIG. 15 shows thermal diffusivity in the image forming method of the present invention.
The temperature (Tt,...) of the layer containing the dye and the temperature inside that layer.
Optical density of heat-diffusible dye diffuse-transferred from
0. D. ) is a diagram illustrating the relationship between diffusion transfer
The optical density (0.D,) of the dye is determined by the type of dye.
The inherent thermal expansion temperature ( Td+rru*e
: Generally, this T a It t u @● is the color of the pigment.
The lower the molecular weight, the lower the molecular weight, and the more polar groups attached to the dye.
) and the constituent components of the layer containing the thermodiffusible dye.
It depends on the glass transition temperature (Tg) of (binder etc.)
, the dye begins to be diffusely transferred onto the receiver paper T trans
exceeds T dlrrum++ and almost coincides with Tg
．． That is, by heating a layer containing a heat-diffusible dye,
The temperature (Tt,...) is the T d l t t
U m @ and Tg or higher (Ttranw 2:
T arttum* +Tg), the pigment in the layer
diffuses and transfers to the image receptor, resulting in a dye image on the image receptor.
It will be done. In the present invention, the molecular chain of the polymer in the polymerization part
This suppresses the diffusivity of heat-diffusible dyes to some extent. did
Therefore, the polymerization part is heated only below its glass transition point.
, Relaxation of molecular chains (relaxation of molecular chains by molecular vibration caused by heat)
If not, the diffusion of the dye within the polymerization region will be suppressed.
can. FIG. 16 shows the image forming method (A) of the present invention.
The temperature (Tt,...) of the heated photoreceptor and the
Optics of thermodiffusible dyes diffused and transferred from a light source onto a receiver paper
It is a graph illustrating the relationship with concentration (0.D.)
．． In addition, in this graph, curve (a) is located at the polymerization part.
Curve (b) shows the above relationship for the unpolymerized part.
The above relationship is shown below. Also, the temperature of the photoreceptor is
What about heaters and heat rollers? This is the value measured on the surface.
．． As shown by curve (a) in FIG.
The heat-diffusible dye in the polymerized area is caused by the glass transition in the unpolymerized area.
transferred onto the receiver from a temperature equivalent to the transition temperature (Tg+).
As T t t a■ increases, the unpolymerized part
The forming binder and polymerizable polymer precursor molecules
This improves the diffusion transferability of heat-diffusible dyes and increases optical density.
The degree (0. 0.) increases. On the other hand, as shown by curve (b) in the same figure, the weight of the photoreceptor
The thermodiffusible dye at the polymerization point
transferred onto the image receptor from a temperature corresponding to the temperature (Tgx).
At the beginning, T t r a. As the value of 1 increases, the polymerization part increases.
The forming binder. Polymer molecules are relaxed,
The diffusion transferability of heat-diffusible dyes is improved and the optical density (0.D
．． ) becomes higher. The relationship between curves (a) and (b) as above
From the section, if T trans is lower than T g + (same as
B area in the figure), either the polymerized part or the unpolymerized part of the photoreceptor
However, heat-diffusible dyes are not transferred onto the receiver and the image is not shaped.
Not done. On the other hand, when T trans is higher than Tg (in the same figure)
area C), transferred from the unpolymerized area of the photoreceptor onto the image receptor.
The optical density (0.D.) of the thermodiffusible dye is sufficient.
However, since transfer also occurs from the polymerized part, fogging occurs.
This is undesirable because it occurs. In the imaging method (A) of the present invention
In this case, the preferable T trans is the A region in the same figure,
That is, T g +≦T trans≦T g z.
It is desirable to have high contrast and no fogging.
, a good image can be obtained on the image receptor. In addition, this method does not require high-temperature heating, so
Other components contained in the light body (before the binder polymerizable polymer)
transfer material to an image receptor by melting or sublimation
It can reduce the image quality and produce better quality images.
Obtainable. Furthermore, it is not acceptable to set T trans to region D in the figure.
O. of the image obtained on the image object. The D value is sufficiently high, making it particularly favorable.
Delicious. When obtaining gradations using the image forming method (^) of the present invention, the 16th
As shown in the curved line (c) in the figure, the layer containing the thermodiffusible dye is
By changing the intensity, the amount of heat diffusible dye transferred can be changed.
It would be good if you could do it. In other words, in this method, in order to obtain a high gradation image,
The Tg of the image is not only Tg + and Tg2, but also
There is a gradation Tg within the range of Tg + to Tgz.
All you have to do is make it so that In other words, it is possible to change the exposure amount in the image exposure process of the method of the present invention.
The amount of ff4 latent image is changed by
After that, the amount of oxidant produced was changed, and the gold surface was further exposed.
(and heating), polymerization according to the amount of oxidant produced
A latent polymer image is generated. Increase the image exposure amount
As a result, a large amount of latent silver images are formed, and oxidized products are also formed.
It is produced in large quantities. Therefore, the polymerization inhibition property becomes stronger and T
g is image exposure from T g z of the part that is not image exposed at all
As the amount increases, it becomes lower, and eventually the initial T
Reach g (T g + ). The gradation T
Thermal diffusivity increases as g increases, so it cannot be obtained on the image receptor.
The optical density of the colored image becomes higher. That is, image overexposure
As the exposure amount increases by a certain amount, the optical density of the resulting color image increases.
The degree increases as the temperature increases, and the density level increases with the gradation Tg.
You can adjust the tone. In addition, when obtaining such a gradation image,
, T g 2 in the above formula (B) means in the polymerization part
It means the highest glass transition point. As mentioned above, the image forming method (^) of the present invention uses a photoreceptor
The degree of polymerization (and crosslinking) of the polymerizable polymer precursor contained in
Obtain high-gradation images by controlling the
This is a simple method that can be used. By going through the steps (a) to (d) above,
As shown in Figure 14 (e), an image consisting of dye 9 is received.
It can be obtained within the image Nll. This image is a contrast
The image is of excellent quality, and since it does not contain silver, it is similar to that of a silver statue.
Images with excellent brightness and saturation that are not affected by black color
It is a statue. Furthermore, due to the difference in degree of polymerization and degree of crosslinking,
You can obtain high-resolution density gradations. Note that the image formed by the method (^) of the present invention refers to
Not only the image formed on the image layer 8 but also the dye 9 is diffusely transferred.
It may also be an image of the photosensitive layer l after the process. Also, as stated above
Among the image forming method (A) of the present invention, especially
When using bright photoreceptors (E) and (C), image reception
layer and a colorant layer containing a thermodiffusible dye are used for polymer imaging.
Separated by formed photosensitive layer or polymerized layer, direct contact
Because it does not completely transfer the heat diffusible dye in the polymerized area.
When trying to suppress it, it becomes possible and very ground-covering.
This is preferable because it produces images with good contrast and less
Yes. Furthermore, when using the photoreceptor of the present invention (DJ. (F)
In this case, the amount of heat-diffusible dye in the polymerization part of the coloring material layer is more than necessary.
Even if it diffuses into the photosensitive layer or polymerized layer,
color fog is very likely to occur because the polymerization part in the
It is difficult to use, and images with even better contrast can be obtained.
It is preferable. From (a) of the image forming method (A) of the present invention described above,
The process of (d) contains heat-diffusible dyes with different color tones.
The method is applied to a plurality of photoreceptors of the present invention having
Forming a multicolor image on an image receptor [hereinafter referred to as the image form of the present invention]
This method can be called method (B). That is, the image forming method (B) of the present invention, for example,
, magenta, cyan (black if desired), etc.
Heat-diffusible dyes with different color tones or heat-diffusible dyes
A heat spreader that later reacts with a color developer to produce different color tones.
The above-mentioned plurality of the present invention each containing a dispersive color forming agent separately.
For each photoreceptor, (a) exposure is performed according to image information for each color.
(b) heating process, (c) full-surface exposure
The process of forming a reamer latent image, (d) the same image receptor and sequentially
By laminating and heating, multiple thermal diffusivity of different color tones can be created.
forming an image on the image receptor from a dye.
This is an image forming method. The photoreceptor used in the image forming method (B) of the present invention is
What are the embodiments of the photoreceptor of the present invention as described above?
However, preferably it is a photoreceptor (^) to (F).
This is desirable. In addition, detailed aspects of each of the above steps (a) to (d) are as follows:
, which is exactly the same as the image forming method of the present invention described above (^).
stomach. Next, in addition to the above image forming method (B) of the present invention, a multicolor image
Describing a method of forming an image, i.e. the photosensitive halogen
Silver compound, organic silver salt, reducing agent, polymerizable polymer precursor, light weight
A photoreceptor comprising a synthesis initiator and a heat diffusible dye, the photoreceptor comprising a plurality of
areas are arranged in the plane and transferred to the image receptor by heat.
When the color tone of the thermodiffusible dye differs from each other in adjacent areas,
(a
) process of image exposure, (b) process of heating, (c) full-scale exposure
(d) the same image receptor;
By sequentially stacking and heating the above regions, the plurality of different regions are stacked and heated.
a process for forming an image on the image receptor comprising a heat-diffusible dye;
[hereinafter referred to as the image forming method of the present invention]
Law (C)]. Below, image formation of the present invention
Method (C) will be explained with reference to Figures 17 to 19.
I will explain. As shown in Figure 17, yellow, magenta,
Photosensitive layer 2-I containing cyan heat-diffusible dyes separately
．． 2-1.2-II1 supported in film or sheet form
forming on the body 1 and further forming a protective layer 3 thereon;
Obtain photoreceptor G-a. Next, as shown in FIG. 18, this photoreceptor G-a is
Yellow photosensitive layer 2-■, magenta photosensitive layer 2-I+
．． In the order of cyan photosensitive layer 2-II+, image exposure device 12
, thermal development device 13, full-surface exposure device [14, each
Under appropriate conditions, latent image formation by silver nuclei, reducing agent and
Amplification of latent image by oxidant, polymer latent by full exposure
Convert to image. Finally, remove the protective layer 3 and remove the image receiving layer.
Body image receiving layer 11 and photosensitive layer 2-1.2-11.2-111
in order, and apply yellow, magenta, and cyan to the polymer.
- Pass through the thermal transfer device 15 according to the latent image. Image receiving layer l1
Yellow 16. as shown in FIG. magenta 1
7. A multicolor image of 7 and 18 is formed. even more necessary
A black layer may be provided as required. Image formation of the present invention
The photoreceptor used in method (C) is shown in FIG.
Not only the photoreceptor (G-a) of the present invention but also the photoreceptor of the present invention described above
Any form of light body (G) may be used.
, preferably photoreceptors (G-a) to (G-f) of the present invention
It is desirable that Furthermore, in each step of the image forming method (C) of the present invention,
Detailed embodiments of the image forming method (A) of the present invention described above and
and CB). Furthermore, another image form of the present invention
The production method uses photosensitive silver halide, organic silver salt and reducing agent.
a first sheet containing a heat-diffusible dye; and a second sheet containing a heat-diffusible dye.
A polymerizable polymer precursor and/or a polymerizable polymer precursor and
(a) containing a photopolymerization initiator in the first sheet;
(b) the process of imagewise exposing the first sheet and the second sheet;
A process of laminating sheets to form a laminate, (c) the laminate
(d) a step of exposing the entire surface of the laminate to light;
, (e) heating at least the second sheet;
image formation comprising the process of transferring a diffusible dye to an image receptor;
This is a method [referred to as the image forming method (D) of the present invention]. Ma
Furthermore, the image forming method of the present invention includes photosensitive silver halide,
A first sheet containing an organic silver salt and a reducing agent and a heat-diffusible color
The second sheet containing the element or both of the
containing a polymerizable polymer precursor and a photopolymerization initiator, (
a) a step of imagewise exposing the first sheet; (b) a step of exposing the first sheet to light;
(C) heating the first sheet; (C) heating the first sheet;
a step of laminating the second sheets to form a laminate; (d)
(e) heating the laminate; (e) exposing the laminate to the entire surface;
(f) heating at least the second sheet;
and a step of transferring the heat diffusible dye to an image receptor.
[referred to as the image forming method (E) of the present invention]
It is. Furthermore, the image forming method of the present invention uses photosensitive halogen
Silver genide, organic silver salt, reducing agent, polymerizable polymer precursor and
a first sheet containing a photopolymerization initiator and a heat-diffusible dye;
(a) applying an image to the first sheet;
(b) heating the first sheet;
(c) the process of fully exposing the first sheet to light; (d) before
The first sheet and the second sheet are laminated to form a laminate.
(e) heating the laminate to form the heat-diffusible color;
An image forming method that includes the process of transferring an element to an image receptor [Book]
This is called the image forming method (F) of the invention. That is, as described above, the first sheet and the second sheet are
This method involves laminating layers during the process. The first sheet and the second sheet contain the acid in the first sheet.
After formation of the incarnation, that is, after image exposure and heating of the first sheet,
[Image forming method (E) of the present invention] which may be laminated,
As in the image forming method (D) of the present invention, immediately after image exposure
The first sheet and the second sheet are laminated, and the oxidation-reduction
The reaction and thermal transition of the oxidant can be carried out in one heating step.
can. The process (C) of the image forming method (D) of the present invention and the process (C) of the image forming method (D) of the present invention
In the step (d) of the image forming method (E), the first
A part of the oxidized reducing agent produced in the second sheet is
The above particles are transferred into the second sheet by heat transfer to the second sheet.
A latent image of the oxidant or the oxidant and the reducing agent is formed. In addition, fb) process of the image forming method CD) of the present invention and the present invention
Lamination in step (C) of bright image forming method (E) is done directly.
Although it is desirable to laminate the oxidant directly to the second sheet,
As long as you can transfer, you can be a certain distance away. Also, the process (d) of method (D) of the present invention and the method of the present invention
The polymerization of the second sheet in step (e) of (E) is
You can also do this after separating from the host. Furthermore, the first and second
Each of the sheets may have a multilayer structure, for example,
The second sheet is composed of a layer containing a polymerizable element and a layer containing a dye.
It may be something that Or as the first sheet,
a layer containing a photosensitive silver halide, an organic silver salt and a reducing agent;
A layer containing a polymerizable polymer precursor and a photoreactive initiator is laminated.
You may use the one provided. In addition, the image form of the present invention?
i (Aspects other than the above in each process of DJing are as described above.
The image forming method of the present invention may be similar to (A) to (C). The photoreceptor of the present invention described above has a photoreceptor in the imagewise exposed area.
A latent image pattern is formed on the silver halide grains due to overheating.
During the process, the latent image acts as a reaction catalyst and has the ability to inhibit polymerization.
It produces an oxidant that In the next full-surface exposure process, the oxidized product is
The formed part does not polymerize, and heat diffusion in the photoreceptor occurs during the final heating process.
The sex pigments diffuse and an image is formed. In this way, the latent image
A color image is formed on the part of the image receptor corresponding to the forming part.
The color image forming method using the photoreceptor of the present invention has storage stability.
In the case of negative-tone photosensitive silver halide with good
The best image scan results in a color image forming part that matches the color image forming part.
Nearby are semiconductor lasers, 1e-Ne lasers, and LEDs.
Imagewise exposure using digital exposure has become mainstream.
For normal text and images, the exposure ratio is low and the image
The advantage of digital scanning is that the light source has a longer lifespan.
Yes, it is preferable. Photosensitive material described in JP-A-61-75342
In the case of , the part without the silver latent image, that is, the reducing agent remains
portions polymerize, producing a polymerization pattern opposite to that of the present invention.
In this case, positive-type photosensitive silver halide or (endo-latent type silver halide)
When silver halide) is used, the latent image disappears and the exposed area is reduced.
Using the photoreceptor of the present invention in which the base material remains and polymerization does not occur.
The same polymerization pattern as the image forming method used can be obtained, but
The latent type silver halide in Bojitive has poor storage stability.
I don't like it. In this way, JP-A No. 61-75342
Images such as those of the present invention can be obtained by using a photosensitive polymeric element of
It is not possible to form a stable color image by scanning. [Example
] Next, the present invention will be explained by giving examples. In addition, the following
Unless otherwise specified, "parts" is an abbreviation for "parts by weight."
It is. Example I AgBr0. 1 part and 0.6 parts of silver behenate,
Dissolve 0.8 part of vinyl butyral and 0.45 part of behenic acid.
in 10 parts of toluene-isoprobanol mixed solution
Dispersed. Then add 4-methoxynaphthol to this solution.
0.5 part and 0.1 part of phthalazinone were dissolved to obtain solution A.
Ta. Separately, 2.4-
0.16 parts of diethylthioxanthone and p-dimethi? Ami
Ethyl nobenzoate 0.04 part (λ.■: 380 nm)
, 2.0 parts of pentaerythritol tetraacrylate
, methyl methacrylate/butyl methacrylate copolymerization
Dissolve 3.0 parts of 1.8 parts of heat-diffusible dye with the following structure.
Solution B was obtained. Next, a ratio of A liquid: B liquid = 1:5 (weight ratio) is sufficient.
Mixed and heat-resistant polyethylene tereph with a thickness of 6μm
Using an applicator on talate (PET) film
A photosensitive layer was obtained by coating to a dry film thickness of 2 μm, and further
3 μm thick polyvinyl alcohol (PVA) on the layer.
lli was established. A negative image is transferred to the PVAI on the photosensitive layer.
They were also exposed. The light source has a fluorescent peak at 420 nm.
Using a fluorescent lamp with
Exposure was performed for 10 msec. After that, remove the negative film and heat develop the film at 105℃.
Pass through PET film with photosensitive layer in imager for 20 seconds
I let it happen. Furthermore, it was placed on a hot plate heated to 60℃.
A fluorescent lamp with a fluorescence peak at 380 nm is placed on top of this.
The light was irradiated for 40 seconds with a distance of 5 cm. In addition, the completely polymerized part and the completely un-polymerized part of the formed polymer latent image
The polymerized part was taken out and the Tg of each part was determined using the viscoelasticity measurement method.
When measured, the Tg of the polymerized part was 115°C, and the temperature was 115°C.
The T g + of the polymerization part was 20°C. That is, T
gz - Tgr = 95°C. Next, the PVA membrane was removed by washing with water. Then drink enough water
was removed, and then an image-receiving layer was formed with polyester resin.
Synthetic paper is used as an image receptor, and the photosensitive layer and image receiving layer are placed in contact with each other.
PET film was placed on top of the film at 115°C for 20 seconds.
The dye is diffused and transferred from the photosensitive layer to the image-receiving layer by heating from the side of the photosensitive layer.
A clear red dye image was obtained on the receiver paper. obtained
The dye image is formed by the silver latent image area (i.e., where it is heated to form a silver image).
The area corresponded to All of the above treatments were performed in a dark room. Example 2 Instead of using 0.6 parts of behenic acid i, penzotri-7zo
PV in the same manner as in Example 1 except that 0.5 parts of silver was used.
A photosensitive layer protected with AIIIi was formed. Furthermore, Example 1 and
After forming a latent image in the same manner, the temperature was adjusted to 120°C.
PET film with a photosensitive layer is placed in a heat developing machine for 20 seconds.
I passed it. Subsequently, the entire surface was exposed to light and washed with water in the same manner as in Example 1.
, dried, and thermal diffusion transfer of dye was performed on the receiving paper.
A clear red pigment image was obtained. In addition, in this example
At Tg = 145℃, T g I = 30℃, T
gi −Tg+ = l l 5°C. Example 3 0.2 parts of AgBrI, 0.5 parts of silver behenate, phthalazino
0.2 parts of 8-hydroxyquinoline, 0.2 parts of behen
Add 0.4 parts of acid and 0.5 parts of polyvinyl butyral to ethanol.
The solution was dispersed and dissolved in 100% of the solution to prepare solution A. Separately, polymethylene is added to the methyl ethyl ketone IO part.
3.5 parts of methacrylate, polymerizable poly? - As a precursor
2.7 parts of trimethylolbroban triacrylate,
Penzyl methyl ketal 0.26 parts (λ.■: 340
nm)% 3 parts of a thermodiffusible dye with the following structure (λ: 44
0nm) was dissolved to prepare solution B. Next, A liquid: B liquid =
Mix thoroughly at a ratio of 1:4 (weight ratio) to prepare a coating liquid.
Then, a photoreceptor was formed in the same manner as in Example 1.
Ta. A negative image is superimposed on the PVA layer on the resulting photosensitive layer,
Light from a 420nm fluorescent lamp is applied from a distance of 5cm from above.
It was irradiated for 20 msec to form a latent image. then that
was passed through a heat developing machine adjusted to 120°C for 20 seconds.
A silver image was generated in the latent image area. Furthermore, 335nm fluorescence on the entire surface
After irradiating the light from a lamp for 30 seconds from a distance of 3 cm, the PV
The A layer was removed by washing with water, and the dye was imaged in the same manner as in Example 1.
When transferred to paper, a clear yellow color corresponding to the silver latent image area appeared.
A dye image was obtained. In this example, Tgt=110°C, Tg+
= 10℃, Tgz Tg+ = 100℃
．． Comparative Example 1 2 and 4 as photopolymerization initiators used in Example 1
-diethyl xanthone, dimethylaminoambu, aromatic acid
Does not use ethyl, instead it is used as a thermal polymerization initiator.
Same as Example 1 except that zobisisobutyronitrile was used.
A photoreceptor was fabricated in the same manner. Then, at 420 nm,
A fluorescent lamp with a light peak is used as a light source, and a negative is placed on the photosensitive layer.
exposure for 10 msec from a distance of 5 cm to form a latent image.
Completed. After that, remove the negative film and adjust to 05℃.
The film was passed through a heated heat developing machine for 20 seconds. Furthermore, wash with water
After removing the PVAN, it was air-dried and laminated with receiver paper.
Heating at ℃ for 20 seconds to receive the dye from the photosensitive layer.
Diffusion transfer was performed on the layer, but no image-like dye image was obtained, and the contrast was
The trust was poor and the entire area was stained. Example 4 AgBr behenate Silver phthalazinone polyvinyl butyral toluene-butanol 2.2 ゛-methylenebis(4.6-di-t-butylph
2.4-diethylthioxanthone (
λ: 380 nm) p-dimethyl 7minobenzoate
Chirpentaerythritol Tetra 1st Root Acrylic
- Styrene copolymer 4 parts 1.2 parts 7 parts 1.2 parts 10 parts 120 parts 6 parts 3 parts 1 part 20 parts 20 parts 6 parts Methyl ethyl ketone 40 parts The above formulation
Weigh it out, use a paint shaker to disperse and dissolve it, and add 15μ
The dry film thickness was 4 μm on a polyester film of
Apply the solution using an applicator so that the
3 μm thick polyvinyl alcohol (PVA) on the layer.
A photoreceptor of the present invention was obtained by forming a layer. The PVA layer of the photosensitive layer prepared in this way is aligned with the negative image.
It was exposed to light to form a silver latent image. 420n as a light source
Using a fluorescent lamp with a fluorescence peak at m, the light source is emitted from the photosensitive layer.
Exposure was performed for 1 sec at a distance of 5 cm. After that, remove the negative film and heat develop at 125℃.
The photoreceptor is passed through the machine for 8 seconds to form a silver image and oxidize in the silver latent image area.
I got a body. Furthermore, it is heated to 60 degrees Celsius by hot spray.
A fluorescent substance with a fluorescence peak at 390 nm is placed on the plate.
When the light from a lamp was irradiated for 60 seconds at a distance of 5 cm, there was no latent image area.
was polymerized, and the latent image area remained unpolymerized. Note that the fully polymerized and unpolymerized portions of this latent image are removed.
Then, measure the Tg of each part using the viscoelastic measurement method.
The T g x of the polymerized part was 110°C, and that of the unpolymerized part was 110°C.
T g + was 20°C. That is, T g z
- T g I = 90°C. Next, the PVA film is removed by washing the photoreceptor with water.
I left. Next, thoroughly remove water and then remove the polyester resin.
Synthetic paper with an image-receiving layer shaped with fat is used as an image-receiving body, and the photosensitive layer and the image-receiving layer are
Overlap the image layer so that they are facing each other and heat at 100℃ for 10 seconds.
The dye in the photosensitive layer is transferred to the image-receiving layer by heating from the photoreceptor side under the following conditions.
When diffusion transfer was performed on the image receiving paper corresponding to the silver latent image area,
A clear red pigment image was obtained. In the above transfer, the dye in the unpolymerized area is well transferred to the image-receiving layer.
The optical density of the transferred image area is 2.0 or more.
Ta. On the other hand, the dye in the polymerized area is hardly transferred and
Optical density on the corresponding image-receiving layer, or "fog density"
was about 0.03. In addition, temperatures of 20°C (Tg+) and below 0°C (Tg*)
When images were formed at various temperatures within a range of
The fog density is 0. 10 or less, and the pigment is 10 or less.
At temperatures that sublimate for minutes (90°C or higher), the transferred image area
The optical density was 1.50 or higher. Example 5 (1 layer) IV AgBr 1 0. 2nd part behen
Henic acid to acid m 0.5 part
0.4 parts l-methquin-5-human
Roxy 7th Princess Toracen 0 4
Part Phthalazinone 0.08 part
Luene/iso-probanol (1:I)
10 parts methyl ethyl ketone
20 parts polymethyl methacrylate
1.0 parts (N: 523nm) Kayarad DPII8
〇． 8 Part 2 - Kuro 0 Chioki
Sandton (λ: 380nm)
0.25 parts p-dimethyl7minoethyl benzoate
0.2 parts of 100 ml were dispersed and dissolved. Next, a 6 μm thick heat-resistant polyethylene terephthalate
on PET film with a dry film pressure of 3 μm.
Apply the above separation solution using an ablator and apply it to the photosensitive layer.
has been established. Further, on this layer, a 3 μm thick layer of polyvinyl alcohol (PVA) is applied.
) layer was provided to produce the photoreceptor of the present invention. A negative image is formed on the PVAI of the photoreceptor of the present invention thus produced.
A latent silver image was formed by exposing the film to light. 4 as a light source
From the photosensitive layer using a fluorescent lamp of 20 nm and power consumption of 15 W.
The light source was placed 5 cm apart and exposed for 20 msec. After that, remove the negative film and heat develop at 120℃.
The photoreceptor was passed through the machine for 20 seconds. Furthermore, 39 on the entire surface
0nm, 15W fluorescent lamp light 3cm apart for 45 seconds
Irradiated. Note that the polymerized and unpolymerized portions of this latent image are taken out and
Tg measurement of each part using elastic measurement method
, Tg2 of the polymerized part is 130°C, TgI of the unpolymerized part is 3
It was 0℃. That is, Tga −Tg+ = 1
Atta at 00℃. Then, remove PVAIIi and the photosensitive layer.
and transfer the dye to receiver paper in the same manner as in Example 4.
A clear red dye image corresponding to the silver latent image was obtained. Below
In the above transfer, the dye in the unpolymerized area is transferred well to the image-receiving layer.
The optical density of the transferred image area was 1.7. one
On the other hand, the dye in the polymerized area is hardly transferred, and the fog density is 0.
．． It was about 04. In addition, 30℃ (Tg+) or more 10
images at various temperatures within a temperature range below 0°C (Tga).
When the images were shaped, the fog density was 0.10.
Below, the temperature at which the dye sublimates sufficiently (100℃ or higher)
The optical density of the transferred image area was 1.5 or more.
．． Example 6 [Preparation of photosensitive layer] The following composition was mixed at 500 Orp using a homomixer.
An emulsion was prepared by stirring for 10 minutes. silver bromide to 1 part silver henate
5 Part 4-Methoxynaphthol
3.5 parts behenic acid
2 part phthalazinone 0.
8 parts polyvinyl butyral 10 parts (polymerized
2200 degrees) isobrobanol 40 parts xylene
40 parts Next, apply this emulsion to 7 parts.
dry film thickness is 4μm on polyester film
A photosensitive layer was obtained. Preparation of polymerized layer〉 Stir the following composition thoroughly and dissolve it uniformly to prepare a coating liquid.
did. Methyl methacrylate polymer 50 parts (TglO
0°C) Trimethytolpropane triacrylate
50 parts 2.4-diethylthioxa
(λ: 380nm) 1
0 parts dimethylamino benzoic acid ethyl ester
l O part Heat-diffusible dye with the following structure
10 parts Methyl ethyl ketone 8
70 parts Next, use an applicator to dry this coating liquid onto the photosensitive layer.
Coat to a dry film thickness of 4 μm, dry quickly, and then reapply.
Then, a polyester film is laminated on the polymer layer to create a texture.
I got a light object. <Image formation> Layer the step tablet on the base side of the photoreceptor and
A 10W fluorescent lamp with a fluorescence peak at
Expose from the substrate side for 50 msec from a distance of 2 cm, and
A similar latent silver image was formed. Next, remove the mask and heat the temperature to 105℃.
The oxidation occurs in the photosensitive layer by passing it through a developing machine adjusted to
A reduction reaction occurred. At this time, an image-like silver image is created in the latent image area.
Been formed. Next, the photoreceptor was further heated at 125°C for 20 seconds.
The oxidant was transferred to the polymer layer by heating under the following conditions. Next feeling
390 on the entire surface from the laminate film side to the polymer layer of the light body
A 15W fluorescent lamp with a fluorescence peak at nm was placed at a distance of 2cm.
When exposed for 20 seconds from a distance, the unexposed area of the image (non-latent)
The portion corresponding to the image area) was polymerized. The T g 2 of the polymerized part is 145°C, and the T g 2 of the unpolymerized part is 145°C.
I was 40°C. That is, T g *-Tg+=1
It was 05℃. Next, after peeling off the laminate film
, the polymer layer and the image-receiving paper were brought into contact with each other at 100°C, losec.
When the photoreceptor and image-receiving paper were separated by heating under the following conditions, the image was
The area corresponding to the unexposed area indicates that a polymerized image has been formed.
The diffusion of the red dye contained is further suppressed, and the image exposure area is
- Transfer of the oxidized form of methoxynaphthol regulates polymerization.
The step tablet spreads the red dye onto the receiving paper.
Both negative and negative red dye images are obtained, and the images are clear and have high brightness and brightness.
Excellent color saturation and density gradation suitable for step tablets.
It was something that Example 7 <Preparation of photosensitive layer> The following composition was heated at 5000 rpm using a homo mixer.
An emulsion was prepared by stirring for 10 minutes. silver bromide
1 part silver behenate
5 parts 2,2°-methylenebis(4-
methylphenol) 3 parts
hehenic acid 2 parts phthalazino
0.6 part polyvinyl butyler
Le 10 parts Inbropanol
40 parts xylene 39
Next, apply this emulsion to 50 μm polyester with an applicator.
Coating onto the film so that the dry film thickness is 4 μm,
A photosensitive layer was obtained. <Preparation of polymerized layer> Use the following composition using a homomixer. 5000rp
A coating solution was obtained by stirring for 10 minutes. methyl meth
Acrylate polymer 50 parts Kayarad DP
}IA (manufactured by Nippon Kayaku) 50 parts benzyl dimethy
Luketal (λ: 340nm)
1 5 parts thermodiffusible dye having the following structure
10 parts (λ: 426 nm) 875 parts of methyl ethyl ketone Next, this
Apply the coating liquid to a 12μm polyester film using an applicator.
Coat it on top so that the dry film thickness is 3 μm to obtain a polymerized layer.
Ta. Image formation> Layer a step tablet on the photosensitive layer and apply fluorescent light at 420 nm.
A 15W fluorescent lamp with a light peak is illuminated from a distance of 2cm.
Exposure from the step tablet for 0 msec to form a silver latent image.
was formed. Next, remove the step tablet 120
It was passed through a heat developing machine adjusted to ℃ for 10 seconds. At this time, the statue
A silver image was formed in the exposed area (latent image area). Next, the photosensitive layer and the polymerization layer were brought into direct contact with each other at 25°C.
2.2゛-methylene in the photosensitive layer was heated under the condition of 0 sec.
Polymerization of the distribution of the oxidized product of Nbis(4-methylphenol)
Moved to layer. Peel off the photosensitive layer and the polymer layer, and remove the polymer layer.
is laminated with a polyester film, and the entire surface is covered with a polymer layer.
2 15W fluorescent lamps with a fluorescence peak at 340nm
Exposure was performed for 30 seconds from a distance of cm. The polymerized part of the polymerized layer and
When the Tg of the unpolymerized part was measured, T g z = 1
3 8℃, Tg+=40℃, Tgz Tg+=
It was 98℃. Next, the laminated polyester fiber
100"C, 10s.
When heated with EC, the yellow dye contained was diffused and transferred,
Place the step tablet and tape on the receiving paper corresponding to the silver latent image area.
Yellow dye images related to moths were obtained. The image is clear and bright
・Excellent color saturation and density gradation suitable for step tablets
It was something. Example 8 Thermodiffusible dye with the following structure 2.5 parts binder
Dermethyl meccrylate-n-1 chill 7-1 route copolymerization
body 7.5 parts methyl ethyl ketone
Weigh out 90 parts of the above formulation, apply it to an ultrasonic disperser, and homogenize it.
A solution A was obtained by dissolving the solution. Behenic acid 4 partsAgBr
1 part silver behenate 5 parts phthalazino
2.5 parts 4-methoxy-1
−naphthol
0.6 parts trimethylolbroban tri7i root
10 Part 2.4-di
Ethylthioxanthone
1.5 parts dimethylamino ethyl benzoate
1.5 Part IJ4-
butyl methacrylate
l O parts ethanol
164. Weigh out 5 parts of the above mixture and apply it to the paint shade.
A liquid B was obtained by dispersion using a maker. Dry on a 22 μm polyester (PET) film.
Apply liquid A using an applicator so that the film thickness is 2 μm.
A color material layer was applied. Next, dry film thickness is applied on the coloring material layer.
Apply liquid B using an applicator so that the thickness is 2 to 3 μm.
A photosensitive layer was applied. Furthermore, a 3 μm thick polyvinyl resin is applied on the layer.
A photoreceptor of the present invention is provided with a vinyl alcohol (PVA) layer.
Created. A negative image is formed on the PVA layer of the photoreceptor of the present invention thus produced.
42 as a light source to form a silver latent image.
Using a fluorescent lamp with a fluorescence peak at 0 nm, light is emitted from the photoreceptor.
The source was placed 5 cm away and exposed for 10 msec. After that, remove the negative film and heat develop at 115℃.
The image is exposed by passing through the PET film on the photoreceptor for 25 seconds.
A silver image was formed in the light area. It was further heated to 60℃
Place it on a hot plate and add a fluorescent peak at 390 nm.
Shine the light of a fluorescent lamp 5 cm away for 45 msec.
The unexposed areas of the image (non-latent image areas) were polymerized. photosensitive layer
When the Tg of the polymerized part and unpolymerized part was measured, Tg*=1
15℃, Tg+=30℃, Tg* Tg+=85
It was ℃. Next, remove the PVA membrane by washing with water and dry it.
After drying, synthetic paper with an image-receiving layer formed from polyester resin is image-receiving.
The photoreceptor and image-receiving layer are stacked so that they are in contact with each other.
, heated from the PET film side at 100℃ for 20 seconds.
Then, the dye is diffusely transferred from the photoreceptor to the image receiving layer and transferred onto the image receiving paper.
corresponds to the image exposure area, obtains a clear red dye image, and
The optical density of the area corresponding to the unexposed area is as low as 0.04.
There was very little fogging. Example 9 Thermodiffusible dye with the following structure 2.5 parts binder
-Polyvinyl butyral 7.5 parts n-1
Nor/xylene (50/50)
Weigh out 90 parts of the above mixture, and
The mixture was applied to a wave dispersion machine to dissolve it uniformly to obtain liquid C. Behenic acid 4 partsAgBr
! 0. 8 parts silver behenate
5 part 2.2゜-methylene bis(
4.6-di-t-butylphenol) 2 parts
Phthalazinone 1 part Kayar
ad DP}IA (Nippon Kayaku) 15 parts
Polymethyl methacrylate 15 parts 2.4-di
Ethylthioxanthone
2 parts dimethyl 7mino ethyl benzoate
2 parts methyl ethyl keto
154. Weigh out 2 parts of the above mixture and add
Dispersion was performed using an intrashaker to obtain Solution D. Dry film thickness is 2-3 μm on 22 μm PET film
Apply liquid C using an ablator so that
A coated PET film was obtained. Next, the dry film thickness is 4 to 5 μm on the 12 μm PET film.
Apply liquid D using an applicator so that the photosensitive layer
A coated PET film was obtained. This color material layer and photosensitive layer
The coated surfaces of the PET films with 80
℃, 1 kg/am'' condition, 22 μm
PET film, coloring material layer, photosensitive layer, 12μm PET film
A photoreceptor was fabricated with layers stacked in this order. The PVAH of the photoreceptor made in this way is aligned with the negative image.
It was exposed to light to form a silver latent image. 420 as a light source
Using a fluorescent lamp with a fluorescence peak at nm, the light source is emitted from the photoreceptor.
exposed for 10 msec at a distance of 5 cm, and then exposed to negative film.
Remove it and expose it to a heat developing machine adjusted to 115℃ for 20 seconds.
A silver image was formed in the image-exposed area (latent image area) by passing through the body. difference
Then place it on a hot plate heated to 60℃,
Add 5c of light from a fluorescent lamp with a fluorescence peak at 390nm to this.
Irradiate for 35 seconds at a distance of m to form a polymerized image in the unexposed area of the image.
did. The Tg of the polymerized and unpolymerized parts of the photosensitive layer was measured.
, Tg*=120℃, Tgl=25℃, T g s
−T g + = 95°C. Next, photosensitive
After removing the PET film on the layer side and drying, the polyester
A laminated paper with an image-receiving layer made of resin is used as an image-receiving body, and the image-receiving layer is
Place them so that they are facing each other and heat them at 110℃ for 10 seconds.
The dye is transferred from the photoreceptor to the image receiving layer by heating, and the image is received.
Corresponding to the image exposure area on paper, obtain a clear red dye image,
In addition, the optical density of the part corresponding to the unexposed area is as low as 0.04.
There was very little ground cover. Example 10 2.5 parts of a thermodiffusible dye having the following structure (light weight)
2.4-diethylthioxanthone 1.5 parts dimethyl
1 part of ethyl aminobenzoate (polymerizable polymer precursor)
body) trimethylolbroban tri-7 acrylate
10 parts (binder) Polymethyl methacrylate IO parts (Tg: 10
5℃) (Solvent) Methyl ethyl ketone 75 parts Weigh the above formulation
The sample was taken and thoroughly dissolved using an ultrasonic dispersion machine to obtain Solution A. anchor
- on a 12 μm thick polyester film treated with
, Apply liquid A to a dry film thickness of 4 to 5 μm, and
It was made into a material layer. Behenic acid 4 parts phthalazino
hmm ! ．． 5th part AgBr
1.2 parts silver behen vinegar
7 parts polyvinyl butyral 10 parts
Department of Erythritol Tetra? acrylate
4 Part 1.1'-JihiFOki
C-2,2°-binaphthyl 5
Part 2.4-diethylthioxanthone 0.5 part
Ethyl dimethylaminobenzoate 0.4 parts Toluene
/butanol (50/50) 1 20 parts or more
Weigh out the above formulation and use a paint shaker to dissolve it thoroughly.
They were mixed to obtain Solution B. On the substrate provided with the coloring material layer, apply liquid B to a dry film thickness of 5 to 6 μm.
It was coated to form a photosensitive layer. Created in this way
By combining the photoreceptor of the present invention with a lithium film, the fluorescent light at 420 nm can be obtained.
A fluorescent lamp with a light peak is placed at a distance of 1 se from a distance of 50lI1.
c irradiation and imagewise exposure to form a silver latent image. Remove the lith film and use a heat developing machine at 120℃ for 20s.
A silver image was formed in the image-exposed area by passing through the photoreceptor using EC.
Furthermore, place it on a hot plate heated to 60℃.
, a fluorescent lamp with a fluorescence peak at 390 nm is placed at a distance of 1 cm.
Irradiate from a distance for 40 seconds to remove the photosensitive layer and coloring material layer in the unexposed area of the image.
A polymerized latent image was formed. Polyester resin is used as an image receiving layer.
The image receiving paper and photosensitive layer, which have been coated on synthetic paper in advance, are directly coated.
Layered in contact and exposed to light at 100°C for 20 seconds.
Heat is applied from the body side, and the dye is diffused and transferred from the coloring material layer to the image receiving layer.
and place a clear red image corresponding to the image exposure area on the receiver paper.
Obtained. All of the above treatments were performed in a dark room. O. of exposed area
D. The value is 1.10, and the O. D. value is 0
．． It was 02. In addition, the completely polymerized and unpolymerized parts of this latent image are taken out.
, the Tg of each part was measured using the viscoelastic measurement method.
The T g 1 of the polymerized part is 120°C, and the T of the unpolymerized part is 120°C.
g+ was 28°C. Example 1l <Shape of color material layer> Acrylic resin 70 parts by weight (glass roll
Transfer point Tg=50℃, Mw=50000) thermally diffusible dye (
Formula below) 30 parts by weight methyl ethyl ketone
Weigh out 500 parts by weight of the above mixture and use an ultrasonic dispersion machine.
It was sufficiently dissolved to obtain Solution A. 22μ with anchor treatment
Apply liquid A to a photosensitive film thickness of 2 m on a polyester film of m thickness.
It was coated to a thickness of ~3 μm to form a coloring material layer. Formation of polymerized layer> Polyvinyl butyral resin 50 parts by weight (Tg-1
12℃, Mwl120000)Kayarad DPH
A (manufactured by Nippon Kayaku) 50 parts by weight 2.4-diethyl
Thioxanthone 5 parts by weight dimethylaminobenzoate
Chill 5 parts by weight Isopropanol 390
Parts by Weight Weigh out the above formulation and thoroughly dissolve it using an ultrasonic dispersion machine.
Solution B was obtained. Apply liquid B on top of the coloring material layer to a dry film thickness of 5 to 6 μm.
It was coated to form a polymerized layer. Formation of photosensitive layer> AgBr behenate Silver phthalazinone polyvinyl butyral (Tg-50°C.Mwl110000) 2,2°-Methyl
Renbis (4-methoxyphenol)
5 parts by weight triene/butanol (1:1)
Weigh out 120 parts by weight of the above formulation and apply it to a paint shade.
The mixture was thoroughly mixed using a car to obtain Solution C. Anchor processing
Liquid C was applied onto the 12 μm thick polyester film.
It was coated so that the dry film had a thickness of 6 to 7 μm, and was used as a photosensitive layer.
．． <Preparation of photoreceptor> Polyvinyl alcohol (PVA) water solution is placed on the photosensitive layer.
Apply the liquid to a dry film thickness of 1 to 2 μm and use it as a peeling layer.
Ta. This peeling PVA layer side is the base/coloring material that was formed earlier.
Laminated in such a way that they are in contact with the polymer layer of the laminate of layers/polymerized layers.
The magenta photoreceptor of the present invention was obtained by heating and laminating 4 parts by weight, 1.2 parts by weight, 7 parts by weight, 1 part by weight, and 15 parts by weight. Image formation〉 Attach a lithium film to this photoreceptor and generate a fluorescent light beam at 420 nm.
A fluorescent lamp with a lamp is irradiated for 2 seconds from a distance of 5 cm.
A latent silver image was formed by imagewise exposure. Remove the lith film and use a heat developing machine at 120℃ for 20s.
A silver image was formed on the image-exposed area by passing through the photoreceptor using EC. Change
Then, place it on a hot plate heated to 60℃,
Fluorescence with a fluorescence peak at 390nm and a power consumption of 10W
Irradiate the light for 40 seconds from a distance of lcm, and leave the image unexposed.
A polymerization latent image was formed on the polymerization layer corresponding to the area. Peel off the photosensitive layer and PVA layer for release from the surface of the polymerized layer, and
Lyester resin was pre-coated on synthetic paper as an image-receiving layer.
The image-receiving paper and the polymeric layer were stacked directly against each other and heated at 100°C and 20°C.
sec to diffuse and transfer the heat-diffusible dye into the image-receiving layer.
A clear red image corresponding to the exposed area of the image appears on the receiving paper.
I got the statue. All of the above treatments were performed in a dark room. image
0. of exposed area. D. The value is 1.22, and the O.
D. The value was 0.02. Note that the fully polymerized and unpolymerized portions of this latent image are removed.
Then, measure the Tg of each part using the viscoelastic measurement method.
As a result, the T g 2 of the polymerized part was 】35°C, and the T g 2 of the unpolymerized part was
T g + was 30°C. Example 12 Preparation of photoconductor for cyan> Acrylic resin 70ffi parts (T
g = 50℃, Mw = 50000) thermal diffusive shear
dye (formula below) 30 parts by weight Methyl ethyl ketone 4 oomm parts With the above formulation
A coating solution was prepared in the same manner as in Example 11 and contained a diffusible dye.
A coloring material layer was formed. Except for using the above coloring material layer, the actual
A cyan photoreceptor was prepared in the same manner as in Example 11. Preparation of photoconductor for yellow
Yellow dye was prepared in the same manner as the cyan photoreceptor above, except that raw dye was used.
A photoreceptor for raw materials was fabricated. <Iijii Image Formation> First, using the magenta photoreceptor of Example 11,
A red image was formed using the same process as in 1. Next, the shea
Using a photoconductor for coloring, cyan is applied in the same process on top of the red image.
The dye was transferred. Furthermore, in the same way, a yellow photoreceptor
Yellow dye was transferred onto it using . The images obtained in the above manner are yellow magenta, yellow magenta,
Vivid, with excellent brightness and saturation using three cyan dyes
It was a full color image. Example 13 Emulsion A for magenta> Silver behenate 5.0 parts Behenic acid
4.0 parts silver bromide
1.0 parts 4-methoxy-l-naphtho
2.5 parts phthalazinone
1 part methyl methacrylate polymer
10. OmKayarad DP
HA (manufactured by Nippon Kayaku) 10.0 parts 2.4-di
Ethylthioxanthone 2.0 parts dimethylaminoamine
Ethyl zoate 1.0 parts Heat-expandable dye with the following structure
2,0 parts methyl ethyl ketone
90 parts xylene 50 parts n
-butanol 30 parts of the above composition
Mix thoroughly using a homomixer to make a magenta emulsion.
A was prepared. Emulsion B for cyanide> Silver behenate 5.0 parts Silver behenate bromide 4-methoxy 1-naphtholphthalazinone methyl methac 1 root polymer trimethylolpropane tri-7-chlorobenzyl dimethane
Chilketal Thermally diffusible dye U having the following structure 4.0 parts 1.0 parts 2.5 parts 1 part lO. θ part 10.0 parts 2.0 parts 2.0 parts Methyl ethyl ketone 90 parts Xylene
50 parts n-butanol
30 parts of the above composition using a homomixer
After sufficient dispersion and mixing, emulsion B for cyan was prepared. Yellow emulsion C> Silver behenate 5.0 parts 4.0 parts 1.0 parts L-naphthol 25 parts 1 part 100 parts 100 parts 25 parts 2.5 parts Silver behenate bromide 4-methoxyphthol Dinon methylmethac 1 route polymer Kayarad DPIIA (Nippon Kayaku) Benzyl
Dimethyl ketal Heat-diffusible dye with the following structure Methyl ethyl ketone 90 parts Xylene
Homomix 60 parts of the above composition
Mix thoroughly using a mixer, and add emulsion C for yellow to iA.
Manufactured. Magenta emulsion A, cyan emulsion B, yellow emulsion C
22 μm thick polyester film anchored with
Using a three-color gravure coating machine, dry film thickness of 4~
The photosensitive layer of each color is applied in a stepwise manner.
6 μm of polyester is formed on these photosensitive layers.
The films were laminated to obtain a photoreceptor. A negative lithium for magenta images is placed on the magenta photosensitive layer of the photoreceptor.
MN the film and fluoresce at 420nm from the negative film side.
An IOW fluorescent lamp with a light peak from a distance of 2 cm,
It was exposed for 50 msec to form an image-like latent silver image. Next, remove the negative film and heat develop at 120℃.
The redox reaction was carried out in the magenta photosensitive layer for 16 seconds.
I woke you up. At this time, an image-like silver image was formed in the latent image area. Next, a fluorescent peak of 390 nm was applied to the entire surface of the magenta photosensitive layer.
A fluorescent lamp with a power consumption of 15W and a distance of 2cm
When exposed to 4086C, the unexposed areas of the image polymerized and laminated.
Peel off the nate film and directly attach the image receptor and magenta photosensitive layer.
Under the conditions of 100°C and 10 seconds from the photoconductor side in contact with each other.
It was heated. When the photoreceptor and image receptor are separated, the image receptor
Above, a clear magenta dye image corresponds to the image exposure area.
Formed. Cyan image formation〉 Negative lithography for cyan image is applied to the cyan photosensitive layer of the photoreceptor.
laminate the films, and set the fluorescent light at 420 nm from the negative film side.
A fluorescent lamp with a power consumption of 10 W and a distance of 2 cm
Then, an image-like latent image was formed by exposure for 50 msec. Next, remove the negative film and heat develop the film at 115°C.
Pass through the imager for 20 seconds to allow the redox reaction to occur in the cyan photosensitive layer.
caused a reaction. At this time, an image-like silver image was formed in the latent image area. then cyan
Power consumption with a fluorescence peak of 340 nm over the entire photosensitive layer
A 15W fluorescent lamp shines 30SeCn from a distance of 2cm.
However, the unexposed areas of the image (non-latent image areas) polymerized. laminate
The film is peeled off and a magenta dye image is formed.
The body and the cyan photosensitive layer are brought into direct contact with each other, and the
It was heated under the conditions of ℃ and 10 seconds. photoreceptor and image receptor
When removed, there was a magenta dye image on the receptor.
, a clear image of cyan dye was formed. Yellow image formation〉 A negative lithium for yellow image is formed on the yellow photosensitive layer of the photoreceptor.
The films are stacked and fluorescent light is emitted at 420 nm from the negative film side.
A fluorescent lamp with a power consumption of 10 W and a light peak is placed at a distance of 2 cm.
From a distance, exposure was performed for 50 msec to form an image-like latent image. Next, remove the negative film and heat develop the film at 120°C.
Passed through the imager for 12 seconds to undergo oxidation-reduction reaction in the yellow photosensitive layer.
caused a reaction. At this time, an image-like silver image was formed in the latent image area. Next, there is a fluorescence peak at 340 nm on the entire surface of the yellow photosensitive layer.
A fluorescent lamp with a power consumption of 15 W is illuminated from a distance of 2 cm.
When exposed for sec, the unexposed areas were polymerized. lamination
Peel off the film to reveal magenta and cyan dye images.
The formed image receptor and the yellow photosensitive layer are brought into direct contact and exposed.
From the body side, 100℃. Heated for 10 seconds. Feeling
When the light body and image receptor were peeled off, magenta appeared on the image receptor.
Forms a clear, multi-colored image consisting of yellow, cyan, and yellow.
It was done. All of the above was done in a darkroom. Example 14 <Yellow coating liquid A> Methyl methacrylate-ethyl methacrylate polymer
10.0 parts trimethylolbrobantri
7 crew 1 route 8,0
Part benzyl dimethyl ketal 2.0 parts Following composition
3.0 parts methyl ethyl chloride
177 parts of the above composition in a homomixer
- to prepare coating liquid A for yellow.
did. <Magenta coating liquid B> Methyl methac 1 route polymer trimethylolbroban tri7 1 route 2.4-die
Ethyl methylthioxanthone dimethylaminobenzoate Thermally diffusible dye with the following structure 10. Part 0 IO. 0 parts 2.0 parts 2.0 parts 3.0 parts Methyl ethyl ketone 173 parts Above composition
Using a homo mixer, mix thoroughly and apply the magenta coating.
Work solution B was prepared. Coating liquid C for Cyanide Methyl methac 1 root polymer trimethylolbroban tri7 1 root benzyl dimer
Cirketal is a thermodiffusible dye with the following structure. 0 parts 10.0 parts 2.0 parts 3.0 parts Methyl ethyl ketone 173 parts Above composition
Thoroughly disperse and mix using a homo mixer and apply for cyan coating.
Solution C was prepared. Coating liquid A for yellow, coating liquid B for magenta, coating liquid for cyan
22μm thick polyester anchored with liquid C
The dry film thickness is coated on the film using a three-color gravure coating machine.
The polymer layer of each color tone is applied in stages.
It was formed into a sloppy shape. Next, silver behenate 5.0 parts behenic acid
2.0 parts silver bromide
0.6 part polyvinyl butyral
5.0 parts Phthalazinone 0.8 parts Xylene/n-1 tanol - 50/50 (vol/vo
1) Prepare a coating liquid consisting of 60 parts of the above composition,
! 12μ dry film on 5μ steel polyester film
A photosensitive layer was formed by coating to a thick layer. Next, the previously shaped polymer layer and photosensitive layer are brought into direct contact with each other.
The photoreceptor was laminated under pressure at 60°C.
The drum scanning method was applied to the photosensitive layer on the yellow polymer layer of the photoreceptor.
Using a laser beam printer (manufactured by Abe Sekkei),
- Image writing was performed using a Ne laser (output 5 mW).
Ta. Next, the photosensitive layer is exposed by heating at 125°C for 5 seconds.
A silver image was formed on the part. 340 on a 80℃ hot plate
A fluorescent lamp with a power consumption of 10 W with a fluorescence peak at nm
Exposure for 40 seconds from a distance of cm, peel off the photosensitive layer,
Image-receiving paper with an image-receiving layer formed in advance and yellow polymerization
The layers were laminated and heated at 100°C for 10 seconds. Heat under the conditions of
This allows the receiver paper to have both brightness and chroma that correspond to the image exposure.
An excellent yellow image was formed. Similarly, if the photosensitive layer on the magenta polymerized layer is yellow,
Image writing and heat development were performed under the same conditions as in the photosensitive layer.
Form a silver image on the exposed area of
A photoreceptor is placed on top and the consumption has a fluorescence peak at 380 nm.
A fluorescent lamp with a power of 10 W is illuminated from a distance of 1 cm at 30 se
c.Exposed to light, peeled off the photosensitive layer, and a yellow image was formed.
The receiver paper and the magenta polymer layer were laminated and heated at 100°C and IOs.
ec. By heating under the conditions of
A magenta image with excellent brightness and saturation is formed.
Ta. Similarly, a yellow field is applied to the photosensitive layer on the cyan polymerized layer.
Image writing and heat development are performed under the same conditions as for photosensitive
Form a silver image on the exposed area of the layer, then hot plate at 80°C.
Place the photoreceptor on top of the quencher with a fluorescence peak at 340 nm.
A fluorescent lamp with a power consumption of 10W is illuminated for 30 seconds from a distance of lcm.
EC exposure, peeling off the photosensitive layer, and creating yellow and magenta images.
The image-formed image receiving paper and the cyan polymer layer are laminated, and lO
0°C, 10 sec. By heating under the conditions of
Cyan image with excellent brightness and saturation compatible with image exposure on paper
was formed. The obtained multicolor image has excellent brightness and saturation.
It happened. Example 15 A separation solution having the following composition was prepared in the dark. 8gBr
0. 7 parts henic acid
2.5 parts silver behenate phthalazinone polymethyl methacrylate (average molecular weight 480,000)
Ethylthioxanthone 4-dimethyl 7 Ethyl minobenzoate 4-methoxy-1-naphthol Thermal diffusive dye manufactured by JM below 4.5 parts 07 parts l 0.0 parts 10.0 parts 0.4 parts 0.6 parts 2.8 2.0 parts xylene 60. 0 parts n-pig
Knoll 60. Homo Miki for 0 part loss
I used a sir. This is polyethylene terephthalate fibre.
(PET film) to a dry film thickness of 5 μm.
I applied it. Polyvinyl butyral N (Tg=ll
5℃) was applied to a dry film thickness of N2μm. instructor
A negative image was superimposed on the photoreceptor of the present invention prepared by
Consumption through a cut filter that cuts light below m
Images were exposed for 10 seconds using an ultra-high pressure mercury lamp with a power of 500W. After that, remove the negative film and heat develop at 125℃.
The photoreceptor was passed through the machine for 16 seconds. Then the cutoff
Remove the filter and heat it to 80℃ for 60 seconds using the above light source.
The entire surface was exposed. Etching treatment with methyl ethyl ketone
As a result, a polymerized image of the object was formed on the PET film.
It was. The irradiation time for full exposure is between 20 seconds and 180 seconds.
I was able to extract the superimposed image. In addition, the sample after full exposure is not etched.
A polyester-coated image receiving paper is used as an image receptor, and a photosensitive layer is
and the image-receiving layer so that they are facing each other, and heated to 130°C.
It was passed through a roller at a speed of 5 mm/sec. photosensitive
When the body is peeled off, an image of magenta dye is exposed on the receiving paper.
A blurred image corresponding to the image was formed. Magenta optics are the best
The concentration is I. 15, and the minimum optical density was 0.27.
Ta. Example 16 A solution consisting of the following composition was prepared, 10.0 parts of polymethyl methacrylate t-pen
Taerythritol triacrylate 10.0 parts camphor
-Quinone 0.7 parts 3,3゛-carbony
Rubis (7-diethylaminocoumarin) 0.7 parts Ethyl P-dimethylaminobenzoate 1.0 parts The following structure
2.0 parts of heat-diffusible dye 80.0 parts of lomethyl ethyl ketone
Apply to T film to a dry film thickness of 5 μm and polymerize.
A layer was formed. On top of this, use the following dispersion to form a dry film.
A photosensitive layer with a thickness of 4 μm was formed. Behenic acid 1.8 parts Silver behenate
4.0 parts silver bromide polyvinyl butyral phthalazinone 8-hydroxyquinoline toluene n-butanol N,N-dimethyl of the compound of the following structural formula
2COOH 0.6 parts 8.0 parts 0.9 parts 2.9 parts 40 parts 60 parts 1 part CzHs Furthermore, a polyvinyl butyral layer is added as a protective layer on top of this.
(Tg = 105℃) so that the dry film thickness is 3μm.
It was set up in A 5mW He-Ne laser was applied to this photoreceptor to expose the photosensitive layer side.
After image exposure, the image was exposed for 30 seconds in a heat developing machine at 110°C.
It was heated. After this, the ultra-high pressure mercury lamp used in Example 15 was
The entire surface was exposed to light for 60 seconds under heating at 60°C. Then, receive
Overlap with image paper and heat roller at 120℃ for 5 m.
When passed through the paper at a speed of m/sec, an exposed image is formed on the receiving paper.
A cyan image corresponding to the image was formed. Example 17 In Example 16, polyvinyl butyral (Tg=
l O 5°C) to polyvinyl acecool (Tg = 80°C
) A photoreceptor was produced in the same manner as in Example 16, except that
When evaluated using the same method, it was found that the
The colored image was printed on the receiving paper. Example 18 Formation of coloring material layer> 2.5 parts of heat diffusible dye having the following structure 2.4-di
Ethylthioxanthone dimethylaminobenzoate ethyl Kayarad DPHA (Nippon Kayaku) Acrylic
1.5 parts resin 1 part 10 parts 10 parts Methyl ethyl ketone 75 parts Weigh the above formulation
The solution was taken and sufficiently dissolved using an ultrasonic dispersion machine to obtain Solution A. Anchor place
Liquid A was applied onto a 9 μm thick polyester film that had been treated.
was applied to a dry film thickness of 2 to 3 μm, and the polymerizable polymer was applied.
The colorant layer contains a remer precursor. Formation of polymerized layer> Polyvinyl butyral resin 50 parts by weight (Tg: 1
12℃, M w 20000) Trimethylolbroban
Triac 1 root 40 parts by weight
2.4-diethylthioxanthone 5 parts by weight dimethylene
Ethyl ruaminobenzoate 5 parts by weight isopropanol
390 parts by weight of the above formulation was weighed and subjected to ultrasonic
The mixture was sufficiently dissolved using a disperser to obtain liquid B. Dry liquid B on the coloring material layer.
It was applied to a dry film thickness of 5 to 6 μm to form a polymerized layer.
. Formation of photosensitive layer> Behenic acid 4 parts by weight 8 gBr
1.2 parts by weight silver behenate
5 parts by weight 2.2°-methylene bis
(4-methoxyphenol) 5 heavy
f1 part phthalazinone 1 part by weight poly
Vinyl butyral 15 parts by weight (Tg: 55°C
) xylene/butanol 120 parts by weight (50/5
0) Weigh out the above formulation and mix thoroughly using a homomixer,
Solution C was obtained. Anchor treated 6μm polyester filament
Apply liquid C on the membrane to a dry film thickness of 5 to 6 μm.
A photosensitive layer was obtained. Furthermore, a dry film of PVA aqueous solution is applied on top of that.
The thickness was 1 to 2 μm. Polymerized layer formed earlier
and a polyester film with a photosensitive layer are placed in direct contact with each other.
The photosensitive material of the present invention is
layer, polymerized layer, polymerizable polymer precursor, and photopolymerization initiator.
A photoreceptor consisting of a coloring material layer was formed. <Image formation> The photoconductor of the present invention is combined with a lithium film to generate a fluorescent light at 420 nm.
A fluorescent lamp with a light peak was illuminated at a distance of 0.0 cm from a distance of 5 cm. 5
Image exposure is performed by irradiating for sec to form a silver latent image.
Formed. Remove the lith film and use a heat developing machine at 120℃ for 20s.
A silver image was formed on the image exposure area by passing it through the photoreceptor using EC. Change
Then, place it on a hot plate heated to 60℃,
Fluorescence with a fluorescence peak at 390nm and a power consumption of 10W
Irradiate the light for 40 seconds from a distance of Icm to the unexposed part of the image.
A polymerization latent image was formed on the corresponding polymerization layer and coloring material layer. Place the photosensitive layer together with the 6μm polyester film on the side of the polymer layer.
Peel it off and apply synthetic paper with polyester resin as an image-receiving layer.
The image-receiving paper coated on top and the polymeric layer are stacked in direct contact with each other for 10 minutes.
Heating at 0°C for 20 seconds to image the thermally diffusible dye.
A clear image corresponding to the exposed area is created on the receiving paper by diffusion transfer into a layer.
A red image was obtained. All of the above processes were performed in a dark room.
became. O. of the image exposure section. D. The value is 122, and the unexposed area is ○.
D. The value was 0.02. In addition, the fully polymerized and completely unpolymerized parts of the latent image of this polymerized layer
Take out the parts and measure the Tg of each part using the viscoelastic measurement method.
When this was carried out, the Tga of the polymerized part was 140°C, and the unpolymerized
The Tgl of the part was 20°C. Comparative Example 2 8gBr 1.2 parts by weight
Behenic acid m 7 parts by weight Behenic acid
4 parts by weight 2.2゛-methylene bis
(4,6-di-t-butylphenol) 6f
fiffi part phthalazinone 1.2
Parts by weight 2.4-diethylthioxanthone 3 parts by weight
dimethyl 7mino ethyl benzoate
2 parts polyvinyl butyral 10 parts
Parts by weight Polymethyl methacrylate 20 parts by weight
Erythritol tetra 7 ru 1
30 parts by weight Dia Ruffle Reflex Violet R
L-F Tftffi section key
Silene/butanol 400 parts by weight Weigh the above formulation
Disperse thoroughly using a homomixer to prepare a coating solution.
Ta. Dry film thickness is 4μm on 15μm polyester film
Apply the solution using an applicator so that
did. Furthermore, a polyester film with a thickness of 6 μm is laminated.
A photoreceptor was obtained. Fluorescence with a fluorescence peak at 420nm including the negative image
Using a lamp, expose for 1 sec at a distance of 5 cm, and add silver to the exposed area.
A latent image was formed. After that, remove the negative film and heat develop at 125℃.
The photoreceptor is passed through the machine for 8 seconds, and the silver image and oxidized material are formed in the silver latent image area.
was generated. Furthermore, it was placed on a hot plate heated to 60℃.
Then, light from a fluorescent lamp with a fluorescence peak at 390 nm was applied to this.
When irradiated for 60 seconds at a distance of 5 cm, the non-latent image area (image
The unexposed area) was polymerized, and the latent image area was unpolymerized. Next, the 6 μm polyester film was peeled off and the image receptor was removed.
and a photosensitive layer and heated at 100°C under 10SeG conditions.
Although the image receptor was peeled off by heating, no image was formed.
After that, when the photosensitive layer was etched with ethanol,
The exposed areas of the image are dissolved and the unexposed areas of the image remain, forming a violet color.
A colored polymerization image was obtained. Comparative Example 3 AgBr Silver behenate 4-methyl-1-phenyl-3-virazolidonetrieta
Nor7mineazobisisobutyronitrile κayarad DP}IA (Nippon Kayaku) Methyl
Methacrylate polymer 1 part by weight 5 parts by weight 4 parts by weight 4 parts by weight 0.8 parts by weight 3 parts by weight 30 parts by weight 45 parts by weight 10 parts by weight Xylene/n-butanol 400 parts by weight The above formulation
A coating emulsion was prepared by thoroughly stirring and mixing using a homomixer.
A polyester film with a thickness of 25 μm has a dry film thickness of 3
A photosensitive layer was formed by coating to a thickness of ~4 μm. So
Laminate a 6μm thick polyester film on top.
A photoreceptor was obtained. <Image formation> The photoconductor of the present invention is combined with a lithium film to generate a fluorescent light at 420 nm.
A fluorescent lamp with a light peak was illuminated at a distance of 0.0 cm from a distance of 5 cm. 5
Image exposure is performed by irradiating for sec to form a silver latent image.
Formed. Remove the lith film and use a heat developing machine to process 125'C10
sec to pass through the photoconductor, and silver is deposited on the silver latent image area (image exposed area).
An image was formed. Furthermore, it is heated to 70°C in a hot pre-heated state.
A polymerized latent image was formed by placing the sample on the sheet for 50 seconds. 6μm polyester
Peel off the ster film and overlap the receiver paper and photosensitive layer.
Then heat it at 95℃ for 15 seconds, and then
When the paper was peeled off, red dye was transferred all over the receiver paper.
However, a clear image could not be obtained. Example 19 <Preparation of photosensitive layer> The following composition was prepared using a homomixer. 5000rp
An emulsion was prepared by stirring for 10 minutes. silver bromide
1 part silver behenate
5 parts 2,2°-methylenebis(4-methylenebis)
3-part behenic acid
2 part phthalazinone
0.6 parts polyvinyl butyral 1
0 parts Inbropanol 40 parts Xylem
Part 39 Next, apply this emulsion.
Dry film thickness on 50μ polyester film with applicator
A photosensitive layer was obtained by transferring the film to a thickness of 4μ. <Preparation of polymerized layer> Use the following composition using a homomixer. 5000rp
A coating solution was obtained by stirring for 10 minutes. methyl meth
Acrylate polymer 50 parts trimethylolbroban
tri7k 1ru 1 5 0 copies
Benzyl dimethyl ketal 15 parts Heat of the following structure
Diffusible dye 10 parts methyl ethyl ketone
875 parts Next, apply 12 parts of this coating liquid with an applicator.
Dry film thickness is 31Jm on μm polyester film.
The polymerized layer was obtained. (Image formation) A step tablet is layered on the photosensitive layer, and fluorescence is generated at 420 nm.
Have a peak! 5W fluorescent light from a distance of 2cm
Expose from the step tablet for msec to form a silver latent image.
Formed. Next, remove the step tablet and remove the photosensitive layer.
A heat developing machine that is in direct contact with the polymer layer and adjusted to 120°C.
was passed for 25 seconds. At this time, silver is added to the exposed image area (latent image area).
At the same time as the image is formed, the 2.2゛-methylene bicarbonate in the photosensitive layer
An oxidized form of gas (4゜-methylphenol) is generated.
The distribution of oxidants was shifted to the polymer layer. photosensitive layer and polymer layer
Peel it off and laminate the polymer layer with polyester film.
The polymer layer has a fluorescence peak at 340 nm over the entire surface.
A 15W fluorescent lamp was exposed for 30 seconds from a distance of 2 cm.
．． Next, peel off the laminated polyester film.
, laminated with receiver paper and heated at 100℃, IOsec.
The yellow dye contained in the film diffuses and transfers, corresponding to the silver latent image area.
Yellow staining of the relationship between the step tablet and the negative on the receiving paper
An image was obtained. The image is clear and has excellent brightness and color saturation.
It had density gradation depending on the tablet.
．． Example 20 Thermodiffusible dye with the following structure 2.5 parts Binder polyvinyl butyral 7.5 parts n4 tanoh
le/kisiren (50/50)
Weigh out 90 parts of the above mixture and place it in an ultrasonic dispersion machine.
Solution A was obtained by dissolving the solution uniformly. The dry film thickness is 2μ on a 22μ PET film.
Apply liquid A using an applicator and apply sheet 2 as shown below.
Created. Behenic acid 4 parts AgBrl
O. 8 part phthalazinone
1.6 parts silver behenate 5
Part 2.2-methylene bis (4.6-G t-1
2 parts Kayarad DP
}l^ (manufactured by Nippon Kayaku) 15 parts polymethyl methacrylate
Rate 15 parts 2.4-diethylthioxanthone
2 parts Ethyl dimethylaminobenzoate 2 parts
Methyl ethyl ketone 154. 2 parts above layout
Weigh out the mixture, disperse it using a paint shaker, and add liquid B.
Obtained. Apply liquid B to a 12μ PET film with a dry film thickness of 5 to 6.
Apply liquid B using an ablator so that it becomes μ-ho,
Furthermore, a 61Im PET film is laminated on top of it.
Sheet 1 was prepared in this way. The negative image is aligned with the thus prepared sheet 1 and exposed.
Silver latent image formation was performed. A fluorescent lamp with a fluorescence peak at 420 nm is used as a light source.
Place the light source 5cm away from the photoconductor and expose for 10msec.
Ta. After that, remove the negative film and heat develop at 115℃.
The image exposure section (IV image
A silver image was formed on the part). It was then heated to 60℃
Place it on a hot plate and add a fluorescent peak at 390 nm.
Irradiate the light from a fluorescent lamp with a mirror at a distance of 5 cm for 35 seconds.
A polymerized image was formed in the unexposed area of the image. The polymerized part of sheet 1 and the untreated part
T of the polymerization part. When measured, T g 2・120℃
．． T g +・25℃. Tg2 −Tg+”at 95℃
there were. Next, peel off the 6 1Im PET film on sheet 1.
, stack sheets 1 and 2 so that they are in direct contact with each other, and
It was laminated under the conditions of 0°C I Kg/cm.
, peel off the 12 μs PET film on sheet 1, and
Synthetic paper with an image-receiving layer made of tel resin is used as an image-receiving body, and the image-receiving layer is
Place the layers so that they are facing each other and heat for 10 seconds at 110°C.
the dye is diffused and transferred from the photoreceptor to the image-receiving layer,
A clear red dye image is created on the receiving paper corresponding to the image exposure area.
The optical density of the area corresponding to the unexposed area is 0.0.
4, good images were obtained with low fog. r Effects of the Invention] As explained above, according to the present invention, a good contra
Create latent polymer images faster and more stably
Can be formed. Furthermore, the brightness and brightness are not affected by the black color of the silver image.
It is possible to form images with excellent color saturation. Furthermore, high gradation images
can be obtained, and its gradation can be controlled and the image forming process
can be easily done.

[Brief explanation of the drawing]

FIGS. 1 to 8 are schematic cross-sectional views illustrating various aspects of the layer structure of the photoreceptor of the present invention, and FIGS. 9 to 14 illustrate aspects of each step of the image forming method of the present invention. FIGS. 15 and 16 are diagrams illustrating the relationship between the thermally diffusible dye and the optical density of the diffusion transfer area, and FIGS. 17 to 19 are diagrams showing multicolor image formation in the method of the present invention. FIG. l... Support 2... Photosensitive layer 3... Protective layer 4... Polymer layer 5... Coloring material layer 6...
・Silver nucleus 7...Oxidant 8...Reducing agent 9...Thermodiffusible dye 1O...Support] 2...Image exposure device 14...Full surface exposure device 16...Yellow image I8...Cyan image +1...Image receiving layer 13...Thermal development device 15...Transfer device 17...Magenta image

Claims (1)

[Scope of Claims] 1) A photoreceptor containing a photosensitive silver halide, an organic silver salt, a reducing agent, a polymerizable polymer precursor, a photopolymerization initiator, and a heat-diffusible dye. 2) The photoreceptor according to claim 1, wherein the photosensitive silver halide, the organic silver salt, the reducing agent, the polymerizable polymer precursor, the photopolymerization initiator, and the heat-diffusible dye are contained in the same layer. 3) A photosensitive layer containing the photosensitive silver halide, the organic silver salt, and the reducing agent, and a polymerization layer containing the polymerizable polymer precursor, the photopolymerization initiator, and the heat-diffusible dye. 1. Photoreceptor according to 1. 4) A claim comprising a photosensitive layer containing the photosensitive silver halide, the organic silver salt, the reducing agent, the polymerizable polymer precursor, and the photopolymerization initiator, and a coloring material layer containing the heat-diffusible dye. Item 1. Photoreceptor according to item 1. 5) a photosensitive layer containing the photosensitive silver halide, the organic silver salt, and the reducing agent; a polymerization layer containing the polymerizable polymer precursor and the photopolymerization initiator; and a coloring material layer containing the heat-diffusible dye. The photoreceptor according to claim 1, comprising: 6) A photoreceptor containing the photosensitive silver halide, an organic silver salt, a reducing agent, a polymerizable polymer precursor, a photopolymerization initiator, and a heat-diffusible dye, wherein a plurality of regions are arranged in a plane and A photoreceptor in which the color tone of the heat-diffusible dye when transferred to an image receptor in adjacent areas is different from each other. 7) Using a photoreceptor containing a photosensitive silver halide, an organic silver salt, a reducing agent, a polymerizable polymer precursor, a photopolymerization initiator, and a heat-diffusible dye, (a) a step of imagewise exposing the photoreceptor; b) heating the photoreceptor, (c) exposing at least the entire surface of the layer containing the polymerizable polymer precursor and the photopolymerization initiator of the photoreceptor, (d) at least the heat of the photoreceptor. An image forming method comprising the steps of heating a layer containing a diffusible dye and transferring the heat-diffusible dye to an image receptor to form an image. 8) A photoreceptor containing a photosensitive silver halide, an organic silver salt, a reducing agent, a polymerizable polymer precursor, a photopolymerization initiator, and a heat-diffusible dye, in which a plurality of regions are arranged in a plane and The color tone of the heat diffusible dye when transferred to the image receptor is
Using different photoreceptors in adjacent regions, (a) a step of imagewise exposing the photoreceptor, (b) a step of heating the photoreceptor, (c) at least the polymerizable polymer precursor of the photoreceptor and the (d) heating at least the layer containing the heat-diffusible dye of the photoreceptor and transferring the heat-diffusible dye to a receiver to form a color image; An image forming method comprising a step of forming an image. 9) A polymerizable polymer precursor and a photopolymerization initiator are added to either or both of the first sheet containing photosensitive silver halide, an organic silver salt, and a reducing agent, and the second sheet containing a heat-diffusible dye. (a) imagewise exposing the first sheet to light; (b) laminating the first sheet and the second sheet to form a laminate; (c) forming the laminate. An image forming method comprising: (d) exposing the entire surface of the laminate to light; (e) heating at least the second sheet to transfer the heat-diffusible dye to an image receptor. 10) A polymerizable polymer precursor and a photopolymerization initiator are added to either or both of the first sheet containing a photosensitive silver halide, an organic silver salt, and a reducing agent and the second sheet containing a heat-diffusible dye. (a) imagewise exposing the first sheet to light; (b) heating the first sheet; (c) laminating the first sheet and the second sheet. (d) heating the laminate; (e) exposing the entire laminate to light; (f) heating at least the second sheet to receive the thermally diffusible dye. An image forming method comprising a step of transferring to a body. 11) Using a first sheet containing a photosensitive silver halide, an organic silver salt, a reducing agent, a polymerizable polymer precursor, and a photopolymerization initiator, and a second sheet containing a heat-diffusible dye, (a) (b) heating the first sheet; (c) exposing the entire surface of the first sheet to light; (d) exposing the first sheet and the second sheet. An image forming method comprising: (e) heating the laminate to transfer the heat-diffusible dye to an image receptor.