JPH023057A - Color picture image forming material - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a colored image forming material used for color proofing in color printing, and more specifically, it is capable of obtaining a transferred image that approximates the image quality of printed matter. It relates to colored imaging materials.

[Prior art] Color sheets for color proofing (
It is well known in the art that color blues are used.

As a method for creating a multicolor transfer image using a color sheet for color proofing, for example, the so-called direct transfer method, which transfers and laminates a colored image directly onto a final image-receiving paper, described in Japanese Patent Application Laid-open No. 47-41830, for example. JP-A No. 59-97140 describes a method in which a colored image is temporarily transferred and laminated onto a temporary image-receiving sheet, and then transferred again onto a final image-receiving sheet.
The so-called indirect transfer method, and Japanese Patent Application Laid-Open No. 56-50121
Examples include a method of repeating coloring (T culm forming an image after transferring a photosensitive layer to image-receiving paper) described in Japanese Patent No. 7.

[Problems to be Solved by the Invention] All of these methods have the disadvantage that the surface gloss of the obtained image is too high, giving an impression different from the image quality of the printed matter. Since a color proof for color proofing is originally used to predict the image reproduction of the final printed matter, it is strongly desired that the image reproducibility of the color proof be very similar to that of the printed matter. For that purpose, a so-called matte sheet with a roughened surface is superimposed on the image surface of the tinted image formed on the transfer material, and the sheet is passed between heated and pressurized nip rolls. Conventionally, work has been carried out to reduce the surface gloss of images by the following methods, but these steps are complicated and undesirable.

In view of the above-mentioned problems, the present invention has been developed to provide a
The main object of the present invention is to provide a colored image-forming material capable of obtaining a transferred image having image quality similar to that of a printed matter without performing roughening treatment on the surface of the transferred image.

[Means for Solving the Problems] The above object of the present invention is to provide a heat-adhesive layer made of a thermoplastic organic polymer on a support, and a colored photosensitive layer containing at least a photosensitive composition and a colorant. The present invention has been achieved by providing a colored image-forming material comprising a layer of the above-mentioned type, characterized in that the surface of the support on the heat-adhesive layer side has been subjected to a roughening treatment.

The present invention will be explained in further detail below.

The colored image-forming material of the present invention forms a colored image by being imagewise exposed through a color separation mesh film and further developed. The obtained colored image is directly transferred and laminated onto the transfer material together with the heat-adhesive layer.

In the colored image forming material of the present invention, the surface of the support on the heat-adhesive layer side is subjected to a roughening treatment, and there are various methods for such roughening treatment, and specifically, for example, Examples include the following methods, but the method is not limited to these methods.

(1) A thermoplastic film that softens at a relatively low temperature, especially an amorphous polymer film, whose surface is engraved with a pattern or matte finish according to the purpose, and which is generally made between a pair of metal rolls with a thin chrome plated surface. The surface of the film is roughened by passing the film under conditions of heating and pressurization.

(2) In the case of a film manufactured by solution casting method,
Instead of casting the film onto a mirror-finished drum or endless belt, the surface is roughened directly by using a matte or matte-finished drum or endless belt. to produce a film that is

(3) For films such as polyester films, which have a high softening point and whose physical properties deteriorate when heated to near the softening temperature, immerse them in a concentrated solution of phenol, cresol, etc. to erode the surface of the film, and then wash with water. The surface of the film is roughened by a chemical method in which the surface of the film is scratched, or by a physical method in which carborundum, metal particles, etc. are strongly blown onto the film together with compressed air to create scratches.

In addition, the center line average roughness (R
Considering the similarity between the transferred image and the printed image quality, a) is preferably in the range of 0.1 to 10 μm;
．． A range of 2 to 3 μm is particularly preferred. In a range shallower than 0.1 μm, the surface of the transferred image becomes glossy;
In a range deeper than m, the gloss becomes low, and there are cases where the quality cannot be approximated to the printed image quality.

Here, the center line average roughness (Ra) is the German standard DI
As shown in N4768, it is the arithmetic mean of the absolute value of the distance from the center line of the roughness profile to each point on the profile, with the horizontal center line as the X axis and the vertical direction as the Y axis. Let the point on the roughness profile be (x,
y), the Ra value obtained by the following formula for a measurement length of 1 m is expressed in microns.

(Formula) The heat-adhesive layer used in the present invention is preferably transparent and non-adhesive at room temperature, and is preferably 80°C to 160°C.
It is preferable to use a material that can be heat-sealed within a temperature range of .

For this purpose, the following film-forming thermoplastic resins having a softening point of 70°C to 140°C are used, and such thermoplastic resins include olefin (co)polymers,
Vinyl chloride (co)polymer, vinylidene chloride (co)polymer, vinyl acetate (co)polymer, (meth)acrylic ester (co)polymer, styrene/(meth)acrylic ester copolymer, polyester, Organic materials such as vinyl butyral resin, chlorinated rubber, cellulose derivatives, styrene/'1-tadiene copolymer, aliphatic petroleum resin, aromatic petroleum resin, alicyclic petroleum resin, rosin resin, Derben resin, coumaron resin, etc. Examples include polymers, which may be used alone or in combination, and may also be used in combination with other resins or plasticizers.

In the present invention, the length of the thermal adhesive layer is 1 to 2071 m.
The range of 2 to 10 μm is particularly preferable.

In the present invention, in the colored photosensitive layer, after imagewise exposure, the exposed areas or the unexposed areas of 11J are removed in an imagewise manner by a development process to form a colored image.

The photosensitive composition contained in the colored photosensitive layer is of divine quality, but when irradiated with actinic rays, its molecular structure undergoes a chemical change within a short period of time.
Solubility changes in solvents, and when a certain type of solvent is applied, exposed or unexposed areas are dissolved and removed.Includes all compounds such as monomer prepolymers and polymers. . Examples of photosensitive compositions that can be used are photosensitive compositions of the so-called negative/positive type, in which the solubility of exposed areas is reduced, such as those made by esterifying polyvinyl alcohol with cinnamic acid. systems, systems in which diazonium salts and their condensates are mixed with polyvinyl alcohol, polyvinyl bihydrone, polyacrylamide, etc., systems in which aromatic azide compounds are used as photocrosslinking agents and are mixed with binders such as cyclized rubber, etc. However, photosensitive resins using radical photopolymerization or photoionic polymerization can also be used. In addition, as the so-called positive-positive type k) and 7) that increase the solubility of exposed areas, there is, for example, a photosensitive resin composition containing O-quinonediazide as a photosensitive vQ substance, specifically, 1°2 -benzoquino=7diazido-4-sulfonyl7[]ride, 1
．． 2-naphthoquinonediazide-1-ζ′ dihonyl chloride, 1,2-naphthoquinone, condo-5-sulfonyl chloride, 1.2-naphthoquinonediazide-6-sulfonyl chloride, hydroxyl group and/′ or amide, / A compound a obtained by condensing a group-containing upper compound is preferably used. Examples of the hydroxyl group-containing compound include trihydroxybenzophenone, dihydroxyanthraquinone, and bisphenol A1. Examples include nor novolak resin, resorcinol benzaldehyde condensation resin, and pyrogallol acetone condensation resin. In addition, as amine group-containing compounds,
For example, aniline, p-1? Minodiphenylamine;]
-aminobenzophenone, 4.4'-diamino-ninoenylamine, 4.4-diaminobenzo7e, /''-, and the like.

Regarding the qui/′,7d7dide compounds, including those mentioned above, please refer to J. KO88 (author “lightSe
nsitive System” (WiL>y
&5ons, NewYork, 1965) and “Photosensitive Polymer” by Inui Nagamatsu (Kodansha, 19t7).
) can be followed.

After the type, 1.
) Compounds that generate acids (7) when exposed to actinic rays (g)
The present invention can also use a photosensitive resin composition containing ii) a compound having at least one bond that can be decomposed by an acid, and 1ii) a novolak resin containing two or three different phenols. The content of the photosensitive composition in the colored photosensitive layer used for this purpose is, for example, 5 to 80%.

In the present invention, the colored photosensitive layer contains a colored substance, and such colored substances include dyes, pigments, and the like. In particular, when used for color proofing, pigments and dyes with tones matching the usual colors, yellow, magenta 9, cyan, and black required are required, as well as metal powder, white pigments, and fluorescent. Pigments are also used. The following are some examples of the various pigments and dyes known in the art.

(C, I mean color index).

Victoria Pure Blue (C, I 42595) Auramine (C, I 41000) Cathylone Brilliant Flavin (C, I Basic 13) Rhodamine 6GCP (C, I 45160) Rhodamine I3 (C, I 451703+1-77210K
70:100 (C, + 50240) Erioglaucine X (C, 142080) Fast Black H
B (C, I 26150) N 0.1201 Lionol Yellow (C, I 21090) Lionol Yellow GRO (C, I 21090) Shimla Fast Yellow 8GF (C, I 21105) Benzidine Yellow 4 T-564D (C, T 21
095) Shimla Fast Red 4015 (C,
I 12355) Lionor Red 7 B12O3 (
C, + 15830) First Gen Blue TGR-
L, (C, +74160) Lionor Blue SM
(C, 126150) Mitsubishi Carbon Black MΔ-1
00 Mitsubishi Carbon Black #30, #40. #50 The colorant in the colored photosensitive layer used in the present invention is, for example, l
5% to 50% in terms of tm is appropriate.

The colored photosensitive layer usually contains a binder, and such a binder is preferably a polymer compound that is film-forming and solvent-soluble, and that can be dissolved or swelled in an alkaline developer. used.

Specific examples of such polymeric compounds include, for example, polymeric compounds containing a structural unit having an aromatic hydroxyl group represented by the following general formula [1] in its molecular structure.

Here, R1 and R2 are hydrogen atoms, alkyl groups, or
R3 is a hydrogen atom, a halogen atom, or an alkyl group, R4! , is a hydrogen atom, an alkyl group, a phenyl group, or an aralkyl group, x is a divalent group connecting a nitrogen atom and an aromatic carbon atom, n is 0 or 1, and Y may have a substituent. It is a phenylene group or a naphthyl group which may have a substituent.

Specifically, monomers forming such structural units include, for example, N-(4-hydroxyphenyl)-(meth)
Acrylamide, N-(2-hydroxyphenyl)-(
Monomers of (meth)acrylamides such as meth)acrylamide and N-(4-hydroxynaphthyl)-(meth)acrylamide: 0-lm- or p-hydroxyphenyl (meth)acrylate monomer: o-lm- or p-
Examples include human [gyl styrene monomer]. Preferably 0-lm- or p-hydroxyphenyl (meth)
Acrylate monomer 7-1 is N-(4-hydroxyphenyl)-(meth)acrylamide monomer, most preferably N-(4-hydroxyphenyl)-(meth)acrylamide monomer.

In the present invention, it is preferable to use a copolymer of a monomer forming the structure of the above general formula [I] and any of the following monomers.

R゛・Acrylonitrile: CH,=CN Alkyl acrylate: C)! 2=C C-0R' Acrylic acid M: CH,=C-OH (゛) Here, [(5 represents a hydrogen atom, an alkyl group, or a halogen atom, and R6 represents an argyl group, a phenyl group, or a naphthyl group. represents a group.

The proportion of the group having an aromatic hydroxyl group of the general formula [E] in the copolymer is preferably 1 to 30 mol%.

The proportion of units formed from the acrylonitriles in the polymer compound is preferably 0 to 50 mol%, and more preferably 5 to 40 mol% in consideration of developability. The proportion of structural units formed from the alkyl acrylates is preferably 50 to 95 mol% from the viewpoint of developability with a low alkaline aqueous solution, and most preferably 60 to 95 mol%. give.

In addition to the above-mentioned structural units, the above-mentioned acrylic acids such as acrylic acid or methacrylic acid may be copolymerized with the above-mentioned structural units in order to finely adjust the developability, and the proportion thereof in the polymer compound is preferably 0 to 20 mol%, most preferably 0 to 10 mol%, considering the development latitude.

The weight average molecular weight of such a polymer compound is preferably from 1000 to 100.000, more preferably from 1000 to 30.000, from the viewpoint of developability or resolution when a low alkaline aqueous solution is used as a developer. Preferably, the range is . These polymer compounds can be synthesized by a well-known copolymerization method.

Specific examples of such polymer compounds include copolymers having the following structure.

CH.

! Placement, l: n = (1-25): (5-40):
(50-95) Furthermore, in the present invention, as a binder,
Novolak resins obtained by polycondensation of at least one phenol and an active carbonyl compound may also be used.

These phenols include all compounds in which at least one hydrogen atom bonded to an aromatic ring is substituted with a hydroxyl group, and specifically include phenol, 0-cresol, m-cresol, p-cresol, 3-cresol, etc. , 5-xylenol, 2. ．． Examples include 4-xylenol, 2.5-xylenol, carvacrol, thymol, catechol, resorcinol, hydroquinone, pyrogallol, phloroglucin, and an alkyl group (1 to 8 carbon atoms) substituted phenol.

Examples of active carbonyl compounds include aldehydes and ketones, and specific examples include formaldehyde, toaldehyde, benzaldehyde, acrolein, furfural, and acetone.

Examples of polycondensation resins include phenol formaldehyde novolac resin, m-cresol formaldehyde novolac resin, phenol/m-cresol/formaldehyde copolycondensate resin, phenol/p-cresol/formaldehyde copolycondensate resin, ■-cresol/p- Cresol/formaldehyde copolycondensate resin, 0-cresol/ρ-cresol/formaldehyde copolycondensate resin, phenol/0-cresol/I-cresol/
Examples include formaldehyde copolycondensate resin, phenol/O-cresol/p-cresol/formaldehyde copolycondensate resin, phenol/m-cresol/p-cresol/formaldehyde copolycondensate resin, and the like.

Further, other polymeric compounds that can be used as a binder in the present invention include sulfoalkyl esters of (meth)acrylic acid (co)polymers, vinyl acetal (co)polymers, vinyl ether (co)polymers, and acrylamide. Also included are (co)polymers, styrene (co)polymers, cellulose derivatives, and the like.

The colorant/binder ratio of the colored photosensitive layer used in the present invention is:
It can be determined by a method known to those skilled in the art, taking into consideration the target optical density and the removability of the colored photosensitive layer to a developer. For example, in the case of dyes, the content ranges from 5% to 5% by weight.
75%; in the case of pigments, the content ranges from 5% to 90% by weight
is appropriate.

The thickness of the colored photosensitive layer can be determined by methods known to those skilled in the art, depending on the target optical density, the type of colorant (dye, pigment, carbon black) used in the colored photosensitive layer, and its content. , within the allowable range, the thinner the colored photosensitive layer is, the higher the resolution will be.
Image quality is good. Therefore, the film thickness is 0.1 g/
It is usually used in the range of 1 to 5 (1/v').

In addition to the above-mentioned materials, a plasticizer, a coatability improver, etc. may be added to the colored photosensitive layer of the present invention, if necessary.

Examples of plasticizers include various low-molecular compounds such as phthalate esters, triphenyl phosphates, and maleate esters, and examples of coating properties improvers include fluorine-based surfactants and nonions such as ethyl cellulose polyalkylene ether. Surfactants such as activators can be mentioned.

Further, the colored photosensitive layer can be divided into two layers: a coloring agent layer made of a colorant and a binder, and a photosensitive layer made of a photosensitive composition and a binder. In this case, it does not matter which layer is present on the heat-sealing layer side.

In the present invention, the colored image obtained from the colored image forming material is transferred and laminated directly onto the transfer material together with the heat-adhesive layer.
In order to facilitate peeling off of the support after image transfer, it is preferable to subject the surface of the support to a release treatment using an appropriate oil-repellent substance, or to provide a release layer on the support.

As the oil-repellent substance, for example, silicone resin, fluororesin, fluorine-based surfactant, polyolefin, polyamide, etc. can be used, and as the release layer, for example, alcohol-soluble polyamide, alcohol-soluble nylon, styrene and maleic anhydride can be used. Blends of partially esterified resins of copolymers with methoxymethylated nylon, polyvinyl acetate, polyacrylates, copolymers of polymethyl methacrylate and acrylate, polyvinyl chloride, copolymers of vinyl chloride and vinyl acetate Polymer, polyvinyl butylade, cellulose acetate phthalate, methyl cellulose, ethyl cellulose, cellulose diacetate [cose, cellulose triacetate, polyvinyl alcohol, butyl cellulose, hydroxyethyl cellulose, carboxymethyl cellulose state, cellulose triacetate, cellulose acetate butyrate, hydroxypropyl methyl cellulose phthalate , hydroxypropyl methyl cellulose hexahydrophthalate, or a mixture thereof such as vJJ.

The thickness of the release layer is suitably in the range of 0.01 .mu.m to 30 .mu.m, particularly preferably in the range of 0.1 .mu.m to 5 .mu.m.

As the support for the colored image-forming material used in the present invention, polyester film, particularly biaxially oriented polyethylene prephthalate film, is preferred from the viewpoint of dimensional stability against water and heat, but acetate film, polyvinyl chloride film, polystyrene film, etc. Films, polypropylene films, polyethylene films may also be used.

The image-wise exposed colored image-forming material is subjected to a development process,
The developer used when forming a colored image is preferably an alkaline developer containing water as the main solvent, and examples of the alkaline agent include sodium carbonate, sodium hydrogen carbonate, sodium silicate, potassium silicate, water Sodium oxide, potassium hydroxide, lithium hydroxide, trisodium phosphate, sodium diphosphate, potassium triphosphate, potassium diphosphate, ammonium triphosphate, ammonium diphosphate, lithium metasilicate Inorganic alkalis such as sodium bicarbonate, potassium carbonate, ammonium carbonate, ammonium silicate, as well as organic alkaline agents such as mono-, di- or I-liethanolamine and tetraalkylammonia hydroxide are used. The content of alkaline agent in the developer composition is 0.
．． It is preferable to use the alkaline developer in a range of 0.05 to 30%, and the above-mentioned alkaline developer contains a coconut solvent such as ethylene glycol monophenyl ether, benzyl alcohol, n-propyl alcohol, a surfactant, a sulfite, and EDTA. It may also contain a chelating agent such as, an antifoaming agent such as a wired silane compound, and the like.

Further, as the transfer material to which the colored image formed from the colored image forming material is transferred, general printing paper such as art paper, coated paper, high-quality paper, synthetic paper, etc. can be used.

[Example] <Example 1> A 25 μm thick polypropylene film with a roughened surface was placed on a 50 μm thick polyethylene terephthalate film (surface center line average roughness Ra = 1.06)
μw, manufactured by Perthen Co., Ltd.
eterS5P) on the roughened polypropylene surface of the support laminated by dry lamination method.
A heat-adhesive layer coating solution having the following composition was coated using a wire bar so that the dry film thickness was 7 μm and dried.

(Composition of thermal adhesive layer coating liquid) Alicyclic saturated hydrocarbon resin Alcon P-90 (manufactured by Arayo Chemical Co., Ltd., softening point 90°C) 12 g Alicyclic saturated hydrocarbon resin Alcon P-100 (manufactured by Arayo Chemical Co., Ltd., softening point Point 100°C) Styrene-butadiene block copolymer Toughblen A (Asahi Kasei Fj > 5g Toluene 501 & Methyl ethyl utone 50d) Next, a colored photosensitive layer dispersion having the following composition was placed on the pre-heat-melting layer with a wire bar. The film was coated and dried to a dry film thickness of 1 μm to prepare four colored image forming materials.

(Colored photosensitive layer dispersion liquid composition) 2.3.4-i-lyhydroxybenzophenone;']-quinone-1,2-diazide sulfone aqueous ester 0.616 g Phenol formaldehyde novolac resin (weight average molecular weight: 960 , number average molecular weight: 496) 4.3
84 g The following pigments Ethylce D Tsuru 7 39.6 g (Pigment) Black Carbon Black M A-100 (manufactured by Mitsubishi Kasei) 099 Lithian Nidianin Blue 4920 (manufactured by Dainichiseika) 0.550 Magenta: Seiryoku Fast Carmine 1483 (manufactured by Dainichiseika Chemicals) 068 Re-yellow: Seiryoku Fast Yellow 1-1-7055 (manufactured by Dainichiseika Chemicals) Each color σ゛The color separation halftone positive films were superimposed, imagewise exposed for 20 seconds from a distance of 5Qcm using a 4KW metal halide lamp, and developed by immersion in a developer having the composition shown below for 30 seconds to form a spring color image in the four colors described above.

(Developer composition) Sodium carbonate i5Ω surfactant (Perex NBI- manufactured by Kao Atlas Co., Ltd.) 50 g Distilled water 1000 g Next, the image surface of the black image and art paper were brought into close contact, and the pair was heated to 90°C. After passing through the nip rolls at a speed of 501/min under a pressure of 5 kg/Cf, the support was peeled off. Peeling was easy and a black image was transferred onto the art paper.

Subsequently, colored images were transferred in the order of cyan, magenta, and yellow to obtain a color blue ink image consisting of four colors on art paper.

<Example 2.3> The center line average roughness of the surface of a polypropylene film with a roughened surface to be laminated on a polyethylene terephthalate film is Ra = 0.38 μm, respectively.
Ra = 2.26 μrn (Perthen
Example 2 and Example 3 were carried out in exactly the same manner as in Example 1, except that the measurement was performed using a Perthometer S5P (manufactured by Co., Ltd.).

The following results were obtained from Examples 1 to 3.

The surface of the resulting transferred image was roughened, and a transferred image having an image quality close to that of the printed matter was obtained without further roughening the surface of the transferred image.

Comparative Example 1> A 25 μm thick fake polypropylene film with a smooth surface was placed on a 50 μm thick polyethylene terephthalate film (surface centerline average roughness Ra = 0.08
μm, perthomet manufactured by Perthen
erS5P) on the polypropylene surface of the support laminated by the dry lamination method and heated in the same manner as in Example 1. The first layer coating solution and the colored photosensitive layer dispersion were sequentially laminated and coated to create four-color @color image forming materials, and then exposure, color processing, and image transfer processing were carried out in the same manner as in Example 1 to form an art image. A color blue ink image consisting of four colors was formed on paper.

The surface gloss of the obtained transferred image was too high, and the image quality seemed different from that of the printed matter.

<Example 4> A 75 μm thick polyethylene terephthalate film with a roughened surface (surface center line average roughness Ra =
1.29 μm, pert manufactured by Perthen
A release layer coating solution having the following composition was coated on the roughened surface of the sample (measured with hometer S5P) using a wire bar so that the dry film thickness was 0.5 μm, and then dried.

(Release layer coating liquid composition) Human Oxypropyl Methyl Cellulose Phthalate (Shin-Etsu Chemical HP-55) 5 (+ Methyl Cellosolve 1000) Next, a heat-adhesive layer coating liquid with the following composition was coated with a wire bar to a dry film thickness of 7 μm. It was coated on the release layer and dried.

(Composition of thermal adhesive layer coating liquid) Alicyclic saturated hydrocarbon resin Alcon P-90 (manufactured by Arayo Chemical Co., Ltd., softening point 90°C) 129 Alicyclic saturated hydrocarbon resin Alcon P-100 (manufactured by Arayo Chemical Co., Ltd., softening point 90°C) Point 100°C) 3a Styrene-butadiene block copolymer Toughblen A (manufactured by Asahi Kasei Industries) 5 (1 toluene 501 g methyl ethyl ketone 50, 12) Next, a colored photosensitive layer dispersion having the following composition was prepared using a wire bar until the dry film thickness was 1 μm.
It was coated on the heat-adhesive layer and dried.

(Colored photosensitive layer dispersion liquid composition) Alkali-soluble polymer composition with the following composition (50% methyl cellosolve solution with a weight average molecular weight of 17,000°) 129 (r: ω: b = 10:10:80) pentaerythritol tetraacrylate Michler's ketone benzophenone paramethoxyphenol 4.3g 0.04 (10, 25g 0.01g Methyl cellosolve 941) Fluorine surfactant (manufactured by 3M, FC-430) 0.1g The following pigment (pigment) Black: Carbon black MA-100 (manufactured by Mitsubishi Kasei) 1.98° cyan Nidianin Blue 4920 (manufactured by Dainichiseika) 1.10Q magenta; First Yellow H-7055 (manufactured by Dainichiseika) 1, 36 g Four alkali-soluble polymer compositions were synthesized by the following method.

Weighed 8.85 Q of human O-xyphenylmethacrylamide +, 2.650 Q of acrylonitrile, 33.119 Q of methyl acrylate, and 1.64 Q of azobisisobutyronitrile (polymerization initiator) into a 12-meter flask.
g of ethyl alcohol was used as a solvent, and the reaction was carried out at 77° C. for 6 hours. Thereafter, 75 g of methyl cellosolve was added to stop the reaction, and ethyl alcohol was distilled off at 60° C. for 3 hours. As a result, about 95 g of the island molecule composition was obtained as a 50% methyl cellosolve solution.

Next, on the colored photosensitive layer of each color, an overcoat layer coating solution having the following composition was applied using a wire bar until the dry film thickness was 0.3 μm.
It was coated and dried to obtain a color image forming material of 4 colors.

(Overcoat layer coating liquid composition) Polyvinyl alcohol (GL-O5 manufactured by Nippon Gosei Kagaku Kogyo) 6 g Distilled water
971J methanol
A color separation mesh negative film of each color was superimposed on the overcoat layer surface of the four-color colored image forming material obtained by using 3g or more, image exposure was performed for 20 seconds from a distance of 50CI using a 4KW metal halide lamp, and the image was exposed to the following developer for 30 seconds. Development was performed by immersion to form a four-color colored image.

(Developer) Sodium carbonate 15-Surfactant (Perex NBL manufactured by Kao Atlas Co., Ltd.) 50
g Distilled water 10000g Next, the image surface of the black color image and the paper are brought into close contact, and 9000g
After passing through a pair of nip rolls heated to ℃ at a speed of 5Qcm/min under a pressure of 5Kg/Cf, the support is peeled off. Peeling was easy and a black image was transferred onto the art paper.

Subsequently, the colored images were transferred 11 times in the order of cyan, magenta, and Yellow II-, and a color proofing image consisting of four colors was obtained on art paper. .

The surface of the resulting transferred image was roughened, and a transferred image having an image quality similar to that of the printed material was formed without further roughening the surface of the transferred image.

[Effects of the Invention As described in detail above, the colored image forming material of the present invention can produce images that approximate the image quality of printed matter without the need for roughening the surface of the transferred image a+ after image transfer. A transferred image can be obtained.

Patent applicant Kuchinika Co., Ltd. (and others) agent Patent attorney Miyao Ichinose

Claims (1)

[Claims] A colored image forming material having a heat-fusible layer made of a thermoplastic organic polymer and a colored photosensitive layer containing at least a photosensitive composition and a colorant laminated in the above order on a support, wherein the support A colored image-forming material characterized in that the surface on the heat-adhesive layer side is roughened.