JPH08171202A - Image forming material - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention relates to a colored image forming material and an image forming method suitable for producing a color proof or the like for color proofing in color printing. In particular, it is excellent in printed matter approximation and image reproducibility. Image forming material. An image forming material having a release layer, a color material (photosensitive) layer, and a transparent photosensitive layer on the support, wherein the color material (photosensitive) layer contains a carboxylic acid vinyl ester resin. It is an image forming material.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a colored image forming material and an image forming method suitable for producing a color proof or the like for color proofing in color printing. The present invention relates to an image forming material having excellent properties.

[0002]

BACKGROUND OF THE INVENTION JP-A-59-97140 discloses a light-sensitive material and a release layer material having the same constitution as that of the present invention. However, as a preferable condition of the release layer, it is described that the adhesive force to the support is weak, and only the method in which the release layer is transferred together with the image at the time of transfer to the image receiving sheet is described. With this method, the transferred image is finally covered on the entire surface with this release layer resin film, and the surface of the printing paper is not exposed to the non-image area like the printed matter, and the finished quality is the same as the printed matter. The image reproducibility is poor as a material that requires

On the other hand, the invention described in JP-A-63-116145 is a technology in which a photosensitive material is contained in a color material layer in order to improve the side edge of an image in JP-A-59-97140. However, although the side edge is improved, the exposure of the printing paper surface of the non-image area is not achieved,
Image reproducibility is poor as a material that requires a finished quality similar to that of printed matter.

[0004]

SUMMARY OF THE INVENTION According to the present invention, the finished quality is close to that of a printed matter and the transferred image has excellent image reproducibility, that is, whether the finished proofing sheet can be faithfully reproduced on the original. It is an object of the present invention to provide a transfer image forming material which is free from image defects such as transfer failure and non-uniform transfer density in evaluation, and which does not have a coating on the entire surface and does not differ from printed matter.

[0005]

In order to achieve the above object, the present invention 1 provides a release layer and a coloring material (photosensitive) on the support.
An image forming material having a layer and a transparent photosensitive layer, wherein the coloring material (photosensitive) layer contains a carboxylic acid vinyl ester resin; An image-forming material according to claim 1, further comprising a resin;
The image forming material according to claim 1 or 2, wherein the image forming material has a structure in which a color material (photosensitive) layer and a transparent photosensitive layer are laminated in this order on the release-treated surface of a support having a release layer. Invention 4
The image-receiving sheet material is formed by laminating a cushioning release layer or a cushion layer and a release layer in this order on a support, and the image-receiving sheet material has a release layer of a photosensitive material having a release layer on the support. Adhesive force P ₁ between the support of the image-receiving sheet material and the cushioning release layer or cushion layer when the image-recording layer formed on the layer is transferred and then the image-receiving sheet material and the photosensitive material are peeled off, cushion the release layer and the photosensitive material of the adhesion P _3, and the light-sensitive material of the adhesion between the layer and the release layer P _2, cushioning release layer or a release layer and the image recording layer (coloring material (photosensitive) layer) The adhesive force P ₅ with the support is larger than the adhesive force P ₄ between the image recording layer and the release layer of the photosensitive material, and the above image is retransferred to the permanent image receiving material to separate the image receiving sheet material and the permanent image receiving material. Adhesive force P ₆ between the permanent image receiving material and the image recording layer and P ₁ The image forming material according to claim ₃ , wherein P ₂ is an image receiving sheet having an adhesion balance larger than P ₃ ; the invention 5 is that the photosensitive material is transparent on the release-treated surface of a support having a release layer. The image forming material according to claim 1 or 2, wherein the photosensitive layer and the coloring material (photosensitive) layer are laminated in this order; the invention 6 is a permanent support and a support. A cushioning release layer, or a cushion layer and a release layer laminated in this order, and a support and cushion of an image forming material for transferring and peeling off the image recording layer formed on the release layer. The adhesive force P1 between the image release layer and the cushioning release layer and the image recording layer, and the adhesive force P4 between the image recording layer and the permanent support are the adhesive force between the image recording layer and the release layer of the photosensitive material. An image form according to claim 5, having an adhesion balance greater than P3. Material, it is.

[0006]

In the prior art, since the adhesiveness of the color material layer to the paper is not sufficient, direct transfer to the final image receiver is impossible, and even when indirect transfer is performed, the (provisional) support is transferred from the final support to the final support. It was necessary to provide a transparent image-receiving layer having sufficient adhesiveness to the final support in order to supplement the transferability of the coloring material layer. Therefore, the entire surface of the final image is covered with the transparent layer (image-receiving layer), which is a significant drawback as a proof image requiring a printed matter approximation. In the present invention, in order to compensate for this drawback, a binder having sufficient adhesiveness to the final support by heating and having sufficient thermal releasability is contained in the coloring material layer to directly or indirectly transfer the material. It is possible to transfer only the image onto the final support, and the invention makes it possible to produce a final image having good printed matter approximation.

There are two types of transfer methods, direct and indirect, but the layer structure is different in each method.

The reason is that the printing film has front and back sides, and when the same final image is sought, the direct and indirect methods have different transfer numbers, so the front and back sides of the original or photosensitive material must be reversed. There is. In the case of printing through a film, if the exposure is carried out through a coloring material (photosensitive) layer, the coloring material absorbs the photosensitive effective component of the light source, which is disadvantageous because the sensitivity is lowered. When printing an image, unless the image surface of the original and the photosensitive layer of the photosensitive material are placed as close as possible and a base such as a support is not inserted between them, the dot reduction occurs, and faithful image reproduction cannot be performed.

For the above reasons, the direct method is most suitable for the lower layer of the photosensitive layer and the upper layer of the color material layer, and the indirect method is most suitable for the upper layer of the photosensitive layer and the lower layer of the color material layer.

The addition effect of the vinyl carboxylate resin in the present invention has the effect of improving the adhesive force to the final support and improving the thermal releasability of the photosensitive layer and the color material layer against the releasing.

Since the final image formation is determined by the balance between the adhesive force to the actual paper and the thermal releasability to the support, the direct transfer structure (color material layer upper layer) in the present invention is also effective.

[0012]

DETAILED DESCRIPTION OF THE INVENTION The present invention is described in detail below.
A transparent support is used as the light-sensitive material in the present invention. A conventionally known plastic film is used as the transparent support. For example, polyethylene terephthalate, polypropylene, polyethylene, polyvinyl chloride,
Examples thereof include transparent plastic films such as polystyrene, polycarbonate and triacetate. Further, the support described later in the description of the image receiving sheet material can be used. In particular, the biaxially stretched polyethylene terephthalate film has strength, heat resistance, dimensional stability,
It is preferable because it is excellent in transparency and economy. The thickness of the transparent support is not particularly limited, but it is 5 from the viewpoint of workability and the like.
About 0 to 150 μm is preferable.

In the image forming method of the present invention, the image forming material is usually imagewise exposed through a color separation mask or the like and then developed to form an image. At this time, only the image portion of the image obtained on the support may be directly transferred and laminated on the transfer material. That is, only the colored image layer that substantially forms an image is transferred and laminated.
In this case, a release layer made of an appropriate oil-repellent substance or the like is provided on the surface of the support in order to efficiently perform the transfer onto the transfer surface and facilitate the peeling of the support after the image transfer.

As such an oil-repellent substance, for example, silicone resin, fluororesin, fluorosurfactant, polyolefin, polyamide or the like can be used, and as the release layer, for example, alcohol-soluble polyamide or alcohol-soluble nylon can be used. Blend of partially esterified resin of styrene and maleic anhydride copolymer with methoxymethylated nylon, polyvinyl acetate, polyacrylate, copolymer of polymethylmethacrylate and acrylate, polyvinyl chloride, vinyl chloride And vinyl acetate copolymer, polyvinyl butyrate, cellulose acetate phthalate, methyl cellulose, cellulose triacetate,
Polyvinyl alcohol, butyl cellulose, hydroxyethyl cellulose, carboxymethyl cellulose, cyanoethyl cellulose, cellulose acetate, cellulose triacetate, cellulose acetate butyrate,
Hydroxypropyl methyl cellulose phthalate, hydroxypropyl methyl cellulose hexahydrophthalate, or a mixture thereof can be used.

The thickness of the release layer is preferably 0.01 μm or more.
It is in the range of 50 μm, particularly preferably 5 μm to 50 μm.
m. A particularly preferable embodiment of the release layer provided to enhance the releasability is an example in which a polypropylene layer, a polyethylene layer, an ionomer resin layer, or an ethylene-vinyl acetate resin layer thinner than the thickness of the support is provided.

As a method for providing a polypropylene layer, a polyethylene layer, an ionomer resin layer, an ethylene-vinyl acetate resin layer or the like on a support, especially the transparent support,

(1) Polyvinyl acetate, polyvinyl chloride,
Using a solution of epoxy resin, polyurethane resin, natural rubber, synthetic rubber, etc. dissolved in an organic solvent as an adhesive,
A so-called dry laminating method in which these adhesives are applied on a support and dried by hot air or heating, and then a cover sheet is overlaid and pressure-bonded under heating for lamination.

(2) a copolymer of ethylene and vinyl acetate,
A doctor blade on the support while using ethylene / acrylic acid ester copolymer, polyamide resin, petroleum resin, rosins, waxes or a mixture thereof as an adhesive and heating these adhesives as they are to keep them in a molten state. Method, roll coating method, gravure method, reverse roll method, etc., and then immediately laminating a cover sheet, heating at high temperature if necessary, and then laminating by cooling, so-called hot melt laminating method;

(3) A so-called extrusion laminating method in which polypropylene, polyethylene, etc. are kept in a molten state and extruded onto a support by an extruder, and while the molten state is maintained, a cover sheet is pressure-bonded to laminate.

(4) When a film to be a support is formed by the melt extrusion method, a plurality of extruders are used and polypropylene, polyethylene or the like in a molten state is used, and two or more kinds of the support are formed on the support by one molding. A so-called co-extrusion method or the like in which a cover sheet is pressure-bonded and laminated while a layer made of a resin is formed in a molten state in the same manner:

It can be provided by any of the above methods (1) to (4). A polyethylene terephthalate film, a polypropylene film or the like is used for the cover sheet.

The image recording layer used in the present invention is a separation type of a color material layer containing a color material and a transparent photosensitive layer. The positive photosensitive composition preferably used is the same as those described in JP-A-63-311349 and JP-A-1-180540. The mechanism of this image formation is that the photosensitive layer exposed through the positive original is easily solubilized by being alkali-solubilized and swollen by an alkali developing solution, but the photosensitive layer and the color material layer in the unexposed area are easily removed. An image is formed by remaining as it is.

The image formation of the photosensitive layer will be described in more detail. However, in order to clarify the characteristics of this photosensitive layer, a composition of a photosensitive component and a synthetic resin emulsion is coated on a support, and the coating layer is dried by heating to form a film-formed layer. The photosensitive layer.

The synthetic resin emulsion (binder) mixed in the color material layer of the light-sensitive material used in the present invention or in the light-sensitive layer together with the color material layer is a carboxylic acid vinyl ester resin. Alternatively, any one of a polyacrylic ester, a copolymer of acrylic ester, a copolymer of ethylene and vinyl acetate, a copolymer containing ethylene and vinyl acetate, or a mixture thereof with a vinyl carboxylic acid ester resin. You may use together one part selected from the above. Therefore, the image layer formed by the exposure and development process has adhesiveness itself.

As the carboxylic acid vinyl ester resin used in the present invention, any known resin can be used without particular limitation. For example, a carboxylic acid vinyl ester polymer unit represented by the following general formula can be used in the molecular structure. The polymer compound described in 1. is used.

[0026]

Embedded image However, R represents a hydrocarbon group having 1 or more carbon atoms, particularly preferably 11 or more carbon atoms.

As the carboxylic acid vinyl ester monomer, the following examples are preferable. The name and chemical formula are shown together. (1) Vinyl laurate CH ₃ (CH ₂ ) ₁₀ C
OOCH = CH ₂ (2) vinyl myristate CH ₃ (CH ₂ ) ₁₂ C
OOCH = CH ₂ (3) vinyl palmitate CH ₃ (CH ₂ ) ₁₄ C
OOCH = CH ₂ (4) vinyl stearate CH ₃ (CH ₂ ) ₁₆ C
The OOCH = CH ₂ polymer compound may be a polymer obtained by polymerizing one kind of a carboxylic acid vinyl ester or a polymer obtained by copolymerizing two or more kinds of a carboxylic acid vinyl ester, or a carboxylic acid vinyl ester and a copolymer thereof. It may be a copolymer of any other polymerizable monomer in any component ratio.

Examples of the monomer unit which can be used in combination with the polymer unit represented by the above general formula include R
Is 10 or less, the unit represented by the above general formula, for example, ethylene-based unsaturated olefins such as ethylene, propylene, isobutylene, butadiene, and isoprene, for example, styrene, α-methylstyrene, p-methylstyrene, p-
Styrenes such as chlorostyrene, for example, acrylic acids such as acrylic acid and methacrylic acid, for example, unsaturated aliphatic (di) carboxylic acids such as crotonic acid, itaconic acid, maleic acid and maleic anhydride, for example diethyl maleate, maleic acid Dibutyl, di-2-ethylhexyl maleate,
Diesters of unsaturated dicarboxylic acids such as dibutyl fumarate and di-2-ethylhexyl fumarate, such as methyl acrylate, ethyl acrylate, n-butyl acrylate,
Α-Methylene aliphatic monocarboxylic acid esters such as isobutyl acrylate, dodecyl acrylate, 2-chloroethyl acrylate, phenyl acrylate, methyl α-chloroacrylate, methyl methacrylate, ethyl methacrylate, for example, acrylonitrile, methacrylonitrile. , Amides such as acrylamide, such as acrylanilide, p-chloroacrylanilide,
Anilides such as m-nitroacrylanilide and m-methoxyacrylanilide, such as methyl vinyl ether,
Ethyl vinyl ether, isobutyl vinyl ether, β
-Vinyl ethers such as chloroethyl vinyl ether,
Vinyl chloride, vinylidene chloride, vinylidene cyanide, such as 1-methyl-1-methoxyethylene, 1,
Ethylene derivatives such as 1-dimethoxyethylene, 1,2-dimethoxyethylene, 1,1-dimethoxycarbonylethylene, 1-methyl-1-nitroethylene, such as N-vinylpyrrole, N-vinylcarbazole, N-vinylindole, There are vinyl monomers such as N-vinyl compounds such as N-vinylpyrrolidene and N-vinylpyrrolidone. These vinyl monomers generally have a structure in which an unsaturated double bond is cleaved and are present in the polymer compound.

When the polymer compound represented by the above general formula is used in the present invention, it is particularly preferable that the above polymer unit has 1 to 50 wt% and the number average molecular weight (MN) is 1, Those having a weight average molecular weight (MW) of 5,000 to 500,000 are preferable.

More preferably, a polymer compound comprising the above-mentioned polymerized units (particularly those having 1 to 50 wt%) and vinyl acetate polymerized units is preferable, and particularly, the number average molecular weight (MN).
Is 2,000 to 60,000, weight average molecular weight (MW)
Is preferably 10,000 to 150,000. As specific examples, vinyl acetate / vinyl versatic acid copolymer, vinyl acetate / vinyl versatic acid / crotonic acid copolymer, vinyl acetate / vinyl stearate copolymer, etc. can be preferably used (weight average molecular weight of 10,000). The above is preferable).

By using this color material layer and the photosensitive layer to form only the image layer having adhesiveness, there is a problem in the case where the image portion overlaps with the image portion, which has a problem in transferring only the image layer in the related art. Adhesion between image departments is also possible. As the photosensitive composition used in the transparent photosensitive layer and the color material photosensitive layer of the present invention, known positive type photosensitive compositions / negative type photosensitive compositions can be used without any particular limitation. As the photosensitive composition, it is preferable to use a photosensitive composition containing an o-quinonediazide compound. Examples of the o-quinonediazide compound include those described in J. "Light" by Kosar
t Sensitive System ”(Wiley
& Sons, New York, 1965) and Ken Matsunaga, "Photosensitive Polymer" (Kodansha, 1977).

Specifically, for example, 1,2-benzoquinonediazide-4-sulfonyl chloride, 1,2-naphthoquinonediazide-4-sulfonyl chloride, 1,2-
Naphthoquinonediazide-5-sulfonyl chloride,
A compound obtained by condensing 1,2-naphthoquinonediazide-6-sulfonyl chloride with a compound containing a hydroxyl group and / or an amino group is preferably used.

Examples of the hydroxyl group-containing compound include trihydroxybenzophenone, hydroxyanthraquinone,
Examples include bisphenol A, phenol novolac resin, resorcinbenzaldehyde condensation resin, and pyrogallolacetone condensation resin. Examples of the amino group-containing compound include aniline, p-aminodiphenylamine, p
-Aminobenzophenone, 4,4'-diaminobenzophenone, 4,4'-diaminodiphenylamine and the like.

The photosensitive composition of the present invention can be used as an image forming material. For example, it can be used as a colored image forming material when used as a color proof. Dyes and / or pigments are added as colorants in the color material (photosensitive) layer. In particular, when used for color proofing, pigments and dyes that have a color tone matching those of the ordinary colors required, that is, yellow, magenta, cyan, and black are required, but other metal powders, white pigments, and fluorescent pigments are also required. Are also used. When applying the present invention to a color proof, many pigments and dyes known in the art can be used, as described below.

(C.I means color index). Victoria Pure Blue (CI 42595) Auramine (CI 41000) Catillon Brilliant Flavin (CI Basic 1
3) Rhodamine 6GCP (CI 45160) Rhodamine B (CI 45170) Safranine OK 70: 100 (CI 50240) Erioglaucin X (CI 42080) Fast Black HB (CI 26150) No. 1201 Lionol Yellow (C.I. 2109
0) Lionol Yellow GRO (CI 21090) Shimla First Yellow 8GF (CI 2110)
5) Benzidine Yellow 4T-564D (C.I 2109
5) Shimla Fast Red 4015 (C.I 1235
5) Lionol Red 7B4401 (CI 15830) Fastgen Blue TGR-L (CI 7416)
0) Lionol Blue SM (CI 26150) Mitsubishi Carbon Black MA-100 Mitsubishi Carbon Black # 30, # 40, # 50

When a colorant is used in the present invention, the ratio of the colorant (photosensitive) layer other than the colorant / components other than the colorant is such that the target optical density and the removability of the colorant (photosensitive) layer with respect to the developing solution are targeted. It can be determined in consideration of the method known to those skilled in the art. For example, in the case of dyes, the content is preferably 5% to 75% by weight, and in the case of pigments, the content is preferably 5% to 90% by weight.

The thickness of the coloring material (photosensitive) layer can be determined by those skilled in the art depending on the target optical density, the type of colorant (dye, pigment, carbon black) used in the coloring material (photosensitive) layer and its content. Although it can be determined by a known method,
Within the allowable range, the thinner the colorant (photosensitive) layer is, the higher the resolution becomes, and the image quality is good. Therefore, the film thickness is preferably 0.1 g / m ^{2 to} 5 g / m
^It is usually used in the range of ² .

In carrying out the present invention, a plasticizer, a coatability improver and the like may be further added to the photosensitive composition, if necessary. Examples of the plasticizer include various low molecular compounds such as phthalates, triphenyl phosphates and maleates, and examples of the coating improver include surfactants such as a fluorine-based surfactant and ethyl cellulose polyalkylene ether. Nonionic activators and the like.

When the photosensitive composition of the present invention is used to form an image-forming material, particularly a colored image-forming material, the coloring material (photosensitive) layer is a layer containing at least a coloring agent and a binder. And a transparent photosensitive layer composed of two layers. In this case, which layer is arranged on the support side is optimally determined by the direct transfer method or the indirect transfer method. To be

The image-forming material of the present invention can be used in the form of directly or indirectly transferring an image to a material to be transferred. At this time, the transfer onto the transfer material is efficiently performed,
A release layer is provided on the surface of the support in order to facilitate the peeling of the support after the image transfer, that is, in order to enhance the releasability between the support and the image forming layer. These will be described later.

In the image forming method of the present invention, an image portion is formed by exposing and developing an image forming material having the photosensitive composition of the present invention, and at least the formed image portion is a material to be transferred (for example, main paper). To obtain a transferred image.

When the image forming method of the present invention is embodied as a multicolor image forming method, the basic method is as follows.
It is as follows. First, regarding the direct transfer method,
A colored image of the first color is formed on the colored image forming material, at least the colored image is transferred to the material to be transferred, and the support is peeled off. Further, after forming the second-color coloring image on the second-color coloring image forming material, the second-color registration mark image formed in association with the second-color coloring image is registered with the first-color registration mark image on the transfer material. , The second colored image is transferred onto the first colored image, and the support is peeled off to obtain a two-color aligned image. Similarly, the colored images of the third color and the fourth color are also transferred onto the material to be transferred to obtain a multicolor image.

Next, in the case of the indirect method, this multicolor image is further transferred onto another transfer material to obtain a multicolor image. A method of this kind is disclosed in JP-A-47-41830 and 59-9.
7140, 60-28649 and U.S. Pat. No. 37.
No. 75113 and the like.

In the image forming method of the present invention, the developer used for developing the image forming material can be arbitrarily used as long as it has a developing action for developing the material to be treated. It is preferable to use a developer containing an alkali agent and an anionic surfactant.

The alkaline agents that can be used include (1) sodium silicate, potassium silicate, potassium hydroxide, sodium hydroxide, lithium hydroxide, sodium or ammonium phosphate dibasic or tertiary acid, sodium metasilicate, Inorganic alkaline agents such as sodium carbonate and ammonia, (2) mono, di, or trimethylamine, mono,
Organic amine compounds such as di- or triethylamine, mono- or diisopropylamine, n-butylamine, mono-, di-, or triethanolamine, mono-, di-, or triisopropanolamine, ethyleneimine, ethylenediimine, and the like can be mentioned.

The anionic surfactants that can be used include (1) higher alcohol sulfates (for example, sodium salt of lauryl alcohol sulfate, ammonium salt of octyl alcohol sulfate, ammonium salt of lauryl alcohol sulfate, secondary sodium alkyl). (Sulfate, etc.), (2) Fatty alcohol phosphate ester salts (eg,
(Sodium salt of cetyl alcohol phosphate, etc.) (3) Alkylaryl sulfonates (for example, sodium dodecylbenzenesulfonate, sodium isopropylnaphthalenesulfonate, sodium dinaphthalenesulfonate, sodium metanitrobenzenesulfonate, etc.) (4) Alkyl amide sulfonates

[0047]

Embedded image (5) Sulfonates of dibasic aliphatic ester (for example, dioctyl sodium sulfosuccinate, dihexyl sodium succinate, etc.) (6) Formaldehyde condensate of alkylnaphthalene sulfonate (for example, formaldehyde of sodium cibutylnaphthalene sulfonate) Condensate and the like). The alkaline agent and the anionic surfactant can be used in any combination.

[0048]

EXAMPLES Examples of the present invention will be illustrated below together with comparative examples. However, the present invention is not limited to the examples described below. Unless otherwise specified, "part" means "part by weight". Photosensitive materials and image receiving sheets having the configurations shown in Tables 1 to 4 below were prepared.

First, while applying a subbing layer (anchor agent) shown in the table on a polyethylene terephthalate film (Lumirror T-60: manufactured by Toray) having a thickness of 75 μm,
It was formed by the extrusion laminating method to prepare a support having a release layer.

The color material layer coating liquid shown in the table was applied onto the release layer.

Further, the photosensitive layer coating liquids shown in the table were applied on the color material (pigment) layers of each of the four colors. After filtering with a 63 filter, it was applied with a whaler and dried at 100 ° C. for 2 minutes to prepare colored photosensitive materials for each of the four colors.

On the surface of the polyethylene terephthalate film of the four colored image-forming materials obtained as described above, a color-separating network positive film of each color was superposed, and image exposure was carried out for 20 seconds from a distance of 50 cm with a 4 KW metal halide lamp, and then the following development was carried out. Development was carried out by immersing in a liquid at 30 ° C. for 30 seconds to form four colored images.

On the other hand, an image receiving sheet material was produced as follows. On the biaxially stretched PET (100 μm), the substances shown in the following table were applied in the order of the cushion layer and the release layer, or only the cushioning release layer, and the film thickness was two layers or one layer as described in the table. Create an image receiving sheet of the composition.

The image-receiving sheet of the present invention features a temporary support consisting essentially of a compressible cushion layer. The compression rate is 10% when measured with uniaxial load by the following method
If larger, all compression materials are practically suitable.

The drum 12 shown in FIGS. 1 and 2 is made of aluminum, the press roll 42 is made of silicon rubber,
Both are heated to 80 ° C. by the built-in infrared heaters 38 and 48, the drum 12 is rotated and transfer is performed under a pressure of 4 kg / cm ² by the press roll 42, and then the support film of the image sheet (photosensitive material) is transferred. The image receiving sheet was peeled off. The order of transfer was BK, C, M and Y, and a color proof image consisting of four colors was formed on the image receiving sheet.

Next, the art paper was superimposed on the four-color transfer image and heated and pressed to retransfer the four-color transfer image onto the art paper. The results are shown in the table. Release Layer Ethylene / Vinyl Acetate = 86/14 Copolymer (EVAFLEX P-1407 manufactured by Mitsui DuPont Co., Ltd.) Adhesive: Toluene solution containing urethane oligomer and isocyanate compound (5%) Release layer Alcohol-soluble polyamide 8 0.5 g (CM8000 manufactured by Toray Industries, Inc.) Nitrocellulose RS1 / 2 0.05 g (30% IPA wet cotton) Methanol 400.0 g Methyl cellosolve 100.0 g Image receiving sheet Support biaxially stretched PET (100 μm) Adhesive urethane oligomer, isocyanate compound Toluene solution (5%) Release layer High-density PE (5 μm) Cushion layer Low-density PE (20 μm, compression rate 50%) Image-receiving sheet Support biaxially stretched PET (100 μm) Adhesive urethane oligomer, isocyanate compound Toluene solution containing (5%) Release layer ethylene / vinyl acetate = 85/15 copolymer image-receiving sheet support biaxially oriented PET (100 μm) photopolymerizable image-receiving layer vinyl chloride / vinyl acetate / vinyl 90.0 g alcohol copolymer (manufactured by Sekisui) S-REC A) pentaerythritol tetraacrylate 54.0 g Michler's ketone 0.51 g benzophenone 3.18 g p-methoxyphenol 0.09 g methyl ethyl ketone 220.0 g Binder: vinyl acetate / vinyl versatic acid = 8
0/20, 50% methanol solution of a copolymer having a weight average molecular weight of 60,000 Binder: vinyl acetate / vinyl versatic acid / crotonic acid = 79/20/1, 50% methanol solution of a copolymer having a weight average molecular weight of 60,000 Binder: Vinyl acetate / Vinyl stearate = 80
/ 20, 50% methanol solution of a copolymer having a weight average molecular weight of 60,000 Binder: vinyl acetate / vinyl versatic acid / crotonic acid = 59/40/1, 50% methanol solution of a copolymer having a weight average molecular weight of 60,000 Binder : Methyl methacrylate / iso-butyl methacrylate / iso-butyl acrylate / methyl methacrylate = 35/40/10/15, 40% methyl lactate solution of a copolymer having a weight average molecular weight of 60,000 Binder: Copolymer of styrene and maleic anhydride Combined 20% n-propanol solution Binder: 10% methanol solution of methoxymethylated nylon Binder: Co-condensation resin of phenol / m-, p-mixed cresol = 2/8 and formaldehyde, weight average molecular weight 7500. Diluting solution: n-propanol 58.7 g Acetone 41.0 g Fluorinated surfactant 0.3 g Photoreceptor: para-cresol novolac resin (average degree of polymerization 5.5) 2-diazo-1-naphthol-4-sulfolyl Chloride adduct Photoreceptor: 2-diazo-1-naphthol-4-condensate resin of acetone and propirogallol (average degree of polymerization 3)
Sulfolyl chloride adduct Pigment dispersion composition Yellow pigment dispersion: Seica First Yellow H-7055 (Dainichi Seika) 10.0 g Methyl ethyl ketone 90.0 g Yellow pigment dispersion: Seica First Yellow H-7055 6.6 g Binder 51.3 g Binder 16.2 g n-Propanol 15.1 g Acetone 10.8 g Magenta Pigment Dispersion: Lionol Red 6B FB-4219X (manufactured by Toyo Inki) 20.0 g Methyl Ethyl Ketone 80.0 g Magenta Pigment Dispersion: Seika Fast Carmine 1483 (manufactured by Dainichiseika Co., Ltd.) 6.6 g Binder 51.3 g Binder 16.2 g n-Propanol 15.1 g Acetone 10.8 g Cyan pigment dispersion liquid: Lionol Blue FG-7330 (manufactured by Toyo Ink) 17.5 g Binder 5.0 g Methyl ethyl ketone 77.5 g Cyan pigment dispersion: Cyanine blue 4920 (manufactured by Dainichiseika) 6.6 g Binder 51.3 g Binder 16.2 g n-Propanol 15.1 g Acetone 10.8 g Black pigment dispersion: MHI black M-100 (manufactured by Mitsubishi Chemical) 25.0 g Binder 10.0 g Methyl ethyl ketone 65.0 g Black pigment dispersion: MHI Black M-100 (manufactured by Dainichiseika) 6.6 g Binder 51.3 g Binder 16.2 g n-Propanol 15 .1 g Acetone 10.8 g After mixing and stirring each color, ultrasonic dispersion was performed for 10 minutes, and then treated with a sand mill for 3 hours to obtain a pigment dispersion liquid. Color material layer solution Yellow Magenta Cyan black Binder 11.5g 13.6g 10.7g 11.2g Binder 3.6g 2.0g 3.6g 3.8g Methyl ethyl ketone 57.0g 70.4g 69.7g 75.4g Yellow pigment dispersion Liquid 28.0 g --- Magenta pigment dispersion liquid-12.0 g --Cyan pigment dispersion liquid --16.0 g-Black pigment dispersion liquid --- 9.6 g Color material layer solution Yellow magenta cyan black binder 8.4 g 11 0.0 g 9.2 g 9.6 g Binder 3.6 g 2.0 g 3.8 g 3.8 g Photoreceptor 1.2 g 1.1 g 1.2 g 1.3 g Methyl ethyl ketone 58.8 g 73.9 g 71.0 g 75.7 g Yellow pigment Dispersion liquid 28.0 g --- Magenta pigment dispersion liquid-12.0 g --- Shea Pigment dispersion liquid--14.8 g-Black pigment dispersion liquid --- 9.6 g Color material layer solution Yellow magenta cyan black dilution liquid 93.0 g 92.0 g 92.0 g 89.0 g Yellow pigment dispersion liquid 7.0 g --- -Magenta Pigment Dispersion-8.0 g --- Cyan Pigment Dispersion --- 8.0 g-Black Pigment Dispersion ---- 11.0 g Coloring Layer Solution Yellow Magenta Cyan Black Binder 8.0 g 8.0 g 8.0 g 8 0.0 g Photoreceptor 2.0 g 2.0 g 2.0 g 2.0 g Methyl cellosolve 100.0 g 100.0 g 100.0 g 100.0 g Seika Fast Yellow H-7055 3.0 g --- Seika Fast Carmine 1483 -3.0 g --Cyan blue 4920 − − 3.0 g − Mitsubishi Carbon Black MA-100 − − − 3.0 g Photosensitive layer dissolution Photoconductor 1.0 g Binder 10.0 g Methyl ethyl ketone 89.0 g Photosensitive layer solution Photoconductor 3.3 g Binder 6.7 g Cyclohexanone 27.0 g Acetic acid-n-propyl 63.0 g Color material layer solution Yellow magenta Cyan black binder 11.5 g 13 0.6g 10.7g 11.2g Binder 3.6g 2.0g 3.6g 3.8g Methyl ethyl ketone 57.0g 70.4g 69.7g 75.4g Yellow pigment dispersion 28.0g --- Magenta pigment dispersion-12 Cyan pigment dispersion liquid-16.0 g-Black pigment dispersion liquid-9.6 g Color material layer solution Yellow magenta Cyan black binder 8.4 g 11.0 g 9.2 g 9.6 g Binder 3.6 g 2 0.0 g 3.8 g 3.8 g Photoreceptor 1.2 g 1.1 g 1.2 g 1.3 g Methyl ethyl ketone 58.8 g 73.9 g 71.0 g 75.7 g Yellow pigment dispersion 28.0 g --- Magenta pigment dispersion -12.0 g --- Cyan pigment dispersion --- 14 -8 g-Black pigment dispersion --- 9.6 g Color material layer solution Yellow magenta Cyan black Diluting solution 93.0 g 92.0 g 92.0 g 89.0 g Yellow pigment dispersion 7.0 g --- Magenta pigment dispersion- 8.0 g --- Cyan pigment dispersion liquid --8.0 g --Black pigment dispersion liquid --- 11.0 g Color material layer solution Yellow magenta Cyan black binder 8.0 g 8.0 g 8.0 g 8.0 g Photoconductor 2. 0g 2.0g 2.0g 2.0g Methyl Cellosolve 100.0g 100.0g 100.0g 100.0g Seika First Yellow H-7 55 3.0 g --- Seika Fast Carmine 1483 --3.0 g --Cyan Blue 4920 --3.0 g-Mitsubishi Carbon Black MA-100 --3.0 g Photosensitive layer solution Photosensitive material 1.0 g Binder 10.0 g Methyl ethyl ketone 89.0 g Photosensitive layer solution Photoconductor 3.3 g Binder 6.7 g Cyclohexanone 27.0 g Acetate-n-propyl 63.0 g Developer Konica PS plate developer SDR-1 20 ml Perex NBL (manufactured by Kao Atlas) 50 ml Distilled water 400 ml Developer NaOH 6.0 g Perex NBL (manufactured by Kao Atlas) 100.0 g Distilled water 900.0 g

[0057]

[Table 1]

Note 1) Similarity to printed matter (evaluation of how close the finished proofing sheet is to the printed matter): ◎ Mostly approximate to × Clearly different. Note 2) Image reproducibility (evaluate how faithfully the finished proofing sheet can be reproduced on the original) ◎: Reproducible. ◯: It is not possible to visually judge, but when viewed with a magnifying glass, transfer defects are found in some of the small dots (<10%). Δ: There is a transfer failure in a considerable part (10 to 50%) of the halftone dot by visual judgment. X: There is a transfer failure in a halftone dot and a solid part. Or there is a coating on the entire surface, which is significantly different from the printed matter.

[0059]

[Table 2]

Note 1) Similarity to printed matter (evaluation of how close the finished proofing sheet is to the printed matter): ◎ Mostly approximate to × Clearly different. Note 2) Image reproducibility (evaluate how faithfully the finished proofing sheet can be reproduced on the original) ◎: Reproducible. ◯: It is not possible to visually judge, but when viewed with a magnifying glass, transfer defects are found in some of the small dots (<10%). Δ: There is a transfer failure in a considerable part (10 to 50%) of the halftone dot by visual judgment. X: There is a transfer failure in a halftone dot and a solid part. Or there is a coating on the entire surface, which is significantly different from the printed matter.

[0061]

[Table 3]

Note 1) Similarity to printed matter (evaluation of how close the finished proofing sheet is to the printed matter): ◎ Mostly approximate to × Clearly different. Note 2) Image reproducibility (evaluate how faithfully the finished proofing sheet can be reproduced on the original) ◎: Reproducible. ◯: It is not possible to visually judge, but when viewed with a magnifying glass, transfer defects are found in some of the small dots (<10%). Δ: There is a transfer failure in a considerable part (10 to 50%) of the halftone dot by visual judgment. X: There is a transfer failure in a halftone dot and a solid part. Or there is a coating on the entire surface, which is significantly different from the printed matter.

[0063]

[Table 4]

Note 1) Similarity to printed matter (evaluation of how close the finished proofing sheet is to the printed matter): ◊ Almost approximate to × Clearly different. Note 2) Image reproducibility (evaluate how faithfully the finished proofing sheet can be reproduced on the original) ◎: Reproducible. ◯: It is not possible to visually judge, but when viewed with a magnifying glass, transfer defects are found in some of the small dots (<10%). Δ: There is a transfer failure in a considerable part (10 to 50%) of the halftone dot by visual judgment. X: There is a transfer failure in a halftone dot and a solid part. Or there is a coating on the entire surface, which is significantly different from the printed matter.

[0065]

According to the present invention, it is possible to provide a transfer image forming material having a finished quality similar to that of a printed matter and having good image reproducibility.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tetsuya Taniguchi, 1 Sakura City, Hino City, Tokyo Konica Co., Ltd. (72) Inventor Saburo Hiraoka 1 Sakura City, Hino City, Tokyo Konica Stock Company, (72) Inventor Tetsuya Masuda 1000 Kamoshida-cho, Midori-ku, Yokohama-shi, Kanagawa Sanryo Chemical Co., Ltd. (72) Inventor Hideaki Mochizuki 1000, Kamoshida-cho, Midori-ku, Yokohama-shi, Kanagawa Sanryo Chemical Co., Ltd.

Claims (6)

[Claims] 1. A release layer and a coloring material (photosensitive) layer on the support,
An image forming material having a transparent photosensitive layer, wherein the coloring material (photosensitive) layer contains a carboxylic acid vinyl ester resin. 2. The image forming material according to claim 1, wherein the transparent photosensitive layer contains a carboxylic acid vinyl ester resin. 3. A release-treated surface of a support having a release layer,
The image forming material according to claim 1, which has a structure in which a color material (photosensitive) layer and a transparent photosensitive layer are laminated in this order. 4. An image-receiving sheet material comprising a support and a cushioning release layer, or a cushion layer and a release layer laminated in this order, and the image-receiving sheet material having a release layer on the support. Adhesion between the support of the image receiving sheet material and the cushioning release layer or cushion layer when the image recording layer formed on the release layer of the material is transferred and then the image receiving sheet material and the photosensitive material are peeled off force P _1, adhesion P ₂ between the cushion layer and the release _layer, cushioning release layer or a release layer and the image recording layer (coloring material (photosensitive) layer) and an adhesive force P _3, and the photosensitive material separated The adhesive force P ₅ between the mold layer and the support of the photosensitive material is larger than the adhesive force P ₄ between the image recording layer and the release layer of the photosensitive material, and the image is retransferred to the permanent image receiving material to form an image receiving sheet material. during peeling permanent image receiving material, our adhesion P ₆ with permanent image receiving material and the image recording layer The image forming material according to claim 3, wherein the fine above P _1, P ₂ is an image-receiving sheet having a greater adhesive balance the P _3. 5. A structure in which a transparent photosensitive layer and a color material (photosensitive) layer are laminated in this order on a release-treated surface of a support having a release layer as a photosensitive material. The image-forming material as described in 1 or 2. 6. A cushioning release layer, or a cushioning layer and a release layer laminated in this order on a permanent support, and an image recording layer formed on the release layer is transferred. Then, the adhesive force P1 between the support of the image forming material and the cushioning release layer at the time of peeling, the adhesive force P2 between the cushioning release layer and the image recording layer, and the adhesive force P4 between the image recording layer and the permanent support. Is the adhesive force P3 between the image recording layer and the release layer of the photosensitive material.
The image forming material according to claim 5, which has a greater adhesion balance.