JPH01179040A - Color transferred image forming material - Google Patents

Abstract

PURPOSE:To improve the reproducibility and transferability of a dot image by forming a layer which improves the adhesive property of an adhesive layer to a photosensitive compsn. layer as an intermediate layer. CONSTITUTION:A photosensitive compsn. layer 2 is formed on a transparent supporting body 1 and coated with an adhesive layer 4 with an intermediate layer 3 in-between. One or both of the layers 2, 4 contain a colorant, that is, a dye or a pigment and the layer 3 is a layer which improves the adhesive property of the layer 4 to the layer 2 and contains a silane coupling agent, a titanium coupling agent, a water soluble diazonium salt compd., a water soluble polymer and a cross-linking agent. The adhesive strength between the layers 2, 4 is increased, the peeling and chipping of the layer 4 are prevented even in case of development by somewhat intensified rubbing and the reproducibility and transferability of a dot image are improved.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a colored transfer image forming material used for forming color proofs and the like.

[Background of the invention]

For color printing, whether lithograph, letterpress or gravure, a halftone method is used and requires color-separated halftone dots, positive or negative plates.

In order to save the labor and time of proof printing, which is performed in advance of the actual printing, color sheets for color proofing, ie, color proofs, are generally known.

Regarding the layer structure and image forming method of this color proof,
Various proposals have been made. This color proof transfer method includes (1) a method of transferring a photosensitive layer containing a coloring material to a support and repeating exposure and development to form a colored image;
)r:l! (3) A method in which a photoadhesive layer is laminated on a support and a toner is applied after exposure, and (3) a method in which a monochromatic image formed on a color sheet is sequentially transferred to an image-receiving layer and then re-transferred to a material to be transferred. It is true.

However, each of the above methods has a complicated process and requires a lot of effort. In addition, in particular, the transferred colored image layer, for example in method (3), is embedded in the image-receiving layer, so not only the surface of the transferred image but also the non-image area is glossy, so in practice The texture or image quality was different from that of the printed material. Therefore, in order to bring the image quality as close as possible to that of actual printed matter, it is necessary to subject the surface of the transferred image to a matte treatment, and even if such treatment is performed, the texture will be different from that of actual printed matter.

Therefore, the present inventors developed a method for forming a transfer image that not only has a simple processing process but also can form a color proof with a texture similar to that of an actual printed matter; After imagewise exposure, a colored image-forming material having at least one of a dye and a pigment is subjected to aqueous development to form a colored image, and this is transferred to a transfer material via its outermost surface to form a transferred image. In the method for forming; an adhesive layer is provided as the outermost layer next to the photosensitive composition layer of the colored image forming material, and the adhesive layer is made of a heat-fusible polymer and is water permeable and water-resistant. We have devised a transfer image forming method characterized by insolubility.

However, the adhesive force between the above-mentioned adhesive layer and the photosensitive composition layer may not be sufficient, and as a result, when performing rubbing development, the adhesive layer peels off from the photosensitive composition layer, resulting in partial transfer. If development is carried out only with a slight rubbing force, or if development is carried out with a very weak rubbing force, development cannot be carried out sufficiently and image reproducibility will deteriorate. In this way,
Due to the weak adhesive strength of both layers, it has been difficult to satisfy both transferability and image reproducibility at the same time.

Therefore, the main object of the present invention is to provide a colored transfer image forming material that has good reproducibility and transferability of halftone images, and is also capable of forming a color proof that has a texture close to that of an actual printed matter. .

[Means for solving problems]

The above object is a colored transfer image forming material having a photosensitive composition layer, an adhesive layer as the outermost layer on a support, an intermediate layer between these two layers, and a colorant in at least one layer. This is achieved because the intermediate layer is a layer having a function of further increasing the adhesiveness between the photosensitive composition layer and the adhesive layer.

[For production]

In the present invention, once a colored image is formed, the outermost layer of the colored transfer image forming material has an adhesive layer, so if the adhesive layer is overlaid on the transfer material and then transferred, the final image can be obtained. The photosensitive composition layer is exposed directly to the outermost layer of the color proof. Therefore, the outermost surface of the photosensitive composition layer is
It has no gloss and gives a texture close to that of actual printed matter.

Furthermore, since the adhesive layer is water-permeable and water-insoluble, if aqueous development is performed after imagewise exposure, water will pass through the adhesive layer and reach the photosensitive composition layer, creating an image area in that layer. manifest.

Furthermore, as a result of development, nothing exists in the non-image area, and therefore, even after transfer, nothing exists in the non-image area,
When looking at the final color proof, the surface of the transfer material is directly visible, resulting in an image quality close to that of a matte printed matter. Further, the image object protrudes above the transfer material, and in this respect also becomes similar to a printed matter.

On the other hand, as described below, the materials forming the adhesive layer and the photosensitive composition layer do not exhibit sufficient adhesion between these layers. It is not possible to satisfy both sex and sex at the same time.

Therefore, according to the present invention, by providing an intermediate layer between the two layers, the adhesive strength between the two layers is increased, and even if a certain degree of strong rubbing development is performed, the adhesive layer is prevented from peeling off or chipping, thereby improving image reproducibility. Both transfer properties are improved.

[Specific structure of the invention]

The present invention will be explained in more detail below.

First, the method of the present invention will be outlined with reference to FIGS. 1 and 2.

FIG. 1 shows an example of the layer structure of the colored transfer image forming material according to the present invention, in which on a transparent support 1 such as polyester,
A photosensitive composition layer 2 is formed with or without a release treatment layer or an undercoat layer, and an adhesive layer 4 is further applied with an intermediate layer 3 interposed therebetween. One or both of the photosensitive composition layer 2 and the adhesive layer 4 contain a colorant, that is, a dye and/or a pigment. The photosensitive composition layer 2 may have a two-layer structure of a photosensitive layer containing a colorant and a photosensitive layer not containing a colorant.

The intermediate layer 3 may contain a colorant.

For such a photosensitive image-forming material, imagewise exposure is carried out through the transparent support 1 or, if the adhesive layer 4 is transparent, through the adhesive layer 4.

Thereafter, aqueous development is performed to form a colored image.

Next, after the outermost surface of the colored transfer image forming material on which the colored image has been formed, that is, the adhesive layer 4, is placed on the transfer material 5, preferably printing paper, heat is applied, for example, to form the adhesive layer 4.
are thermally fused, the transparent support 1 is peeled off, and the transfer is performed.
A transfer image is formed on the transfer material 5 as shown in FIG.

Furthermore, as shown in FIG. 3 or 4, the photosensitive image forming material according to the present invention does not contain a colorant (dye or pigment) in the photosensitive composition layer 2A, and has a separate layer as a colorant layer 6. You can leave it without. In this case, the photosensitive composition layer 2A and the colorant layer 6 may be arranged in either order. In the case of FIG. 3, the adhesive layer 4 is transparent, and imagewise exposure is performed through this transparent adhesive layer. In the case of FIG. 4, the support 1 is transparent, and the transparent support 1 is exposed to light.

The intermediate layer in the present invention may include a silane coupling agent; a titanium coupling agent; a water-soluble diazonium salt compound; a combination of a water-soluble polymer and a crosslinking agent; or a combination of these alone. Can be used.

Moreover, the film thickness is preferably 0.01 to 1 μm.

The above silane coupling agents include vinyltrichlorosilane, vinyltrimethoxysilane, vinyltriethoxysilane, vinyltris(2-methoxyethoxy)silane, N-(2-aminoethyl)3-aminopropylmethyldimethoxysilane, N- (2-aminoethyl)3-
Aminopropyltrimethoxysilane, 3-aminopropyltriethoxysilane, 3-glycidoxypropyltrimethoxysilane, 2-(3,4-epoxycyclohexyl)ethyltrimethoxysilane, 3-chloropropyltrimethoxysilane, 3-methacrylic Examples include oxypropyltrimethoxysilane, 3-mercaptopropyltrimethoxysilane, and 3-ureidopropyltriethoxysilane. In addition, examples of titanate coupling agents include isopropyl triisostearoyl titanate,
Isopropyl tridodecylbenzenesulfonyl titanate, isopropyl tri(dioctylpyrophosphate) titanate, tetraisopropyl bis(dioctyl phosphite) titanate, tetraoctyl bis(ditridecyl phosphite) titanate, tetra(2,2-diallyloxymethyl-1-butyl) )-bis(ditridecylphosphite) titanate, bis(dioctylpyrophosphate)-oxyacetate titanate, bis(dioctylpyrophosphate)ethylene titanate, and the like.

Water-soluble diazonium salt compounds that can be used in the present invention include U.S. Pat.
．． A condensation product of a diphenylamine-P-diazonium salt and formaldehyde, which is a reaction product of a diazonium salt disclosed in each specification of No. 415 and an organic condensing agent containing a reactive carbonyl group such as aldol or acecool. (so-called water-soluble diazo resin) is preferably used. Other useful condensed diazo compounds are
-48001, 49-45322, 49-45
It is disclosed in various publications such as No. 323.

The above water-soluble polymers include polyvinyl alcohol,
Gelatin, methyl cellulose, polyamide, wood grain dispersible latex, etc. can be used.

The above-mentioned wood grain dispersible latex includes, for example, acrylic and methacrylic acid esters, such as methyl ester,
Ethyl ester, butyl ester, isobutyl ester, hexyl ester, decyl ester, lauryl ester, stearyl ester and hiscyclohexyl ester:
Vinyl esters, such as vinyl acetate, vinyl propionate, vinyl isocyanate, vinyl benzate, ethylene, dibutyl maleate, styrene, vinyl chloride, vinyl isobutyl ether, isobutylene,
Single component polymers or copolymers of butadiene, paraffin, vinyl acetate, or vinyl butyral can be used.

Preferably, 1 to 50% by weight of a water-soluble polymer such as polyvinyl alcohol is added to the wood grain-dispersible latex.

Other specific examples include blends of alcohol-soluble nylon and water-soluble nylon, blends of polyamide resin and alcohol-soluble nylon, blends of hydroxypropyl methylcellulose phthalate and alcohol-soluble nylon, and alcohol-soluble nylons and water or alkaline water-soluble blends. There are also blends with polymers.

Examples of crosslinking agents that are used in combination with the above water-soluble polymers include water-soluble diazonium salts, glyoxal, etc., as well as those that use ethylenically unsaturated compounds (polymerizable monomers, oligomers) and thermal polymerization initiators in combination. can also be used.

Ethylenically unsaturated compounds forming this crosslinking agent include acrylic acid, methacrylic acid, or esters thereof, such as methyl, ethyl, n-propyl, isopropyl, n-hexyl, n-octyl, n-dodecyl, cyclohexyl, and tetrahydrofurfuryl. , allyl, glycidyl, 2-hydroxyethyl, 2-hydroxypropyl, 3-chloro-
2-hydroxy or 4-hydroxybutyl acrylates and methacrylates, or ethylene glycol,
Diethylene glycol, propylene glycol, dipropylene glycol, polyethylene glycol, polypropylene glycol, mono- or diacrylate and mono- or dimethacrylate of butylene glycol, or trimethylolpropane triacrylate and methacrylate, pentaerydrift tetraacrylate and methacrylate, etc., acrylamide, methacrylate Amides or derivatives thereof, such as N-methylolacrylamide and methacrylamide, N-methoxyacrylamide and methacrylamide, N,N'-methylenebisacrylamide and methacrylamide, N,N'-hexamethylenebisacrylamide and methacrylamide, Examples include styrene, vinyltoluene, divinylbenzene, diallyl phthalate, triallyl cyanurate, vinyl acetate, etc. Particularly preferred are trimethylolpropane triacrylate and methacrylate having 3 to 2 ethylene groups, trimethylolethane triacrylate and Mention may be made of methacrylate, tetramethylolmethane triacrylate and methacrylate, pentaerythritol tetraacrylate and methacrylate, and the like.

Further, as the above-mentioned thermal polymerization initiator, benzoyl peroxide, azobisisobutyronitrile, cumene hydroperoxide, tertiary-butyl hydroperoxide, persulfate, or a redox catalyst can be used.

On the other hand, it is preferable to add one or both of a silane coupling agent and a titanium coupling agent to one or both of the adhesive layer and the photosensitive composition layer, since this further improves the adhesion at the interface between both layers. Examples of this silane coupling agent and titanium coupling agent are as described above.

On the other hand, the adhesive in the present invention desirably exhibits thermal adhesion, is water permeable, and is water insoluble.

That is, during development, a material that can easily pass through an aqueous developer, enable development of the photosensitive composition layer, and is insoluble in the aqueous developer is used.

A more suitable material for forming the adhesive layer is a thermoadhesive polymer obtained by crosslinking a water-soluble polymer with a crosslinking agent. As the water-soluble polymer and crosslinking agent in this case, those shown as examples of materials for forming the intermediate layer can be used as they are.

As the support for the photosensitive image forming material used in the present invention, a polyester film, particularly a two-wheel stretched polyethylene terephthalate film is preferable in terms of dimensional stability against water and heat, but an acetate film, a polyvinyl chloride film, and a polystyrene film are preferable. , polypropylene films may also be used. Furthermore, these supports may be used as they are, but in order to improve the transferability of the image after image formation, they may be subjected to mold release treatment with an appropriate oil-repellent substance, or
Alternatively, an undercoat layer may be provided.

Examples of oil-repellent substances include silicone resins, fluororesins, fluorosurfactants, polyolefins, and polyamides, and examples of undercoat layers include alcohol-soluble polyamides, alcohol-soluble nylons, and copolymers of styrene and maleic anhydride. Combined partially esterified resin,
Blends with methoxymethylated nylon, polyvinyl acetate, polyacrylates, copolymers of polymethyl methacrylate and acrylates, polyvinyl chloride, copolymers of vinyl chloride and vinyl acetate, polyvinyl butylade,
Cellulose acetate phthalate, methyl cellulose,
Examples include those that have weak adhesion to the transparent support, such as ethyl cellulose, cellulose diacetate, cellulose triacetate, and polyvinyl alcohol.

Among the above examples, particularly preferred in order to obtain mold releasability are examples in which a polypropylene layer and/or a polyethylene layer is preferably provided thinner than the thickness of the support.

Methods for providing a polypropylene layer or a polyethylene layer on a support include 1) polyvinyl acetate, polyvinyl chloride, epoxy resin, polyurethane resin, natural rubber,
A solution prepared by dissolving synthetic rubber or the like in an organic solvent is used as an adhesive. After coating this adhesive on a support, it is dried by hot air or heating, and then a polypropylene film or polyethylene film is overlaid and heated. A so-called dry lamination method that involves crimping and laminating. 2) A mixture of ethylene and vinyl acetate, a copolymer of ethylene and acrylic acid ester, polyamide resin, petroleum resin, rosin, and wax is used as an adhesive, and the adhesive is heated as it is to keep it in a molten state while supporting it. After applying it to the body using the doctor blade method, roll coating method, gravure method, reverse roll method, etc., immediately laminate it with a polypropylene film or polyethylene film, heat it to a high temperature as necessary, and then cool it. This is the so-called hot melt lamination method.

3) A so-called extrusion lamination method in which polypropylene or polyethylene is kept in a molten state, extruded into a film using an extruder, and then laminated by pressing a support while the film remains in the molten state. 4) When molding a film to serve as a support using a melt extrusion method, a polypropylene layer or a polyethylene layer is formed on the support film by molding two times with polypropylene or polyethylene in a molten state using multiple extruders. For example, a so-called coextrusion method, etc., may be mentioned.

As the photosensitive composition used in the present invention, various materials have been known, and commercially available products are also easily available. The photosensitive composition used undergoes a chemical change in its molecular structure in a short period of time when exposed to actinic rays, changing its solubility in solvents, and when a certain type of solvent is applied. includes all compounds such as monomers, prepolymers, and polymers that are dissolved and removed by exposed or unexposed areas.

Examples of photosensitive compositions that can be used include so-called negative-positive type compositions that have reduced solubility in exposed areas;
Photo-crosslinkable photosensitive resin systems represented by polyvinyl alcohol esterified with cinnamic acid, systems in which diazonium salts and their condensates are mixed with polyvinyl alcohol, polyvinylpyrrolidone, polyacrylamide, etc., and aromatic azide compounds. There are systems in which the polymer is used as a photocrosslinking agent and mixed with a binder such as cyclized rubber, and photosensitive resins using photoradical polymerization or photoionic polymerization can also be used. In addition, the so-called positive
As a positive type, there is a photo-soluble resin system typified by a combination of naphthoquinone diazide and novolac resin.

Commercial products of such photosensitive compositions include "KPR" and "6KOR" manufactured by Eastman Kodak Company in the United States.

“K?IER”, manufactured by Shisoplay, USA” AZ-340
”, “AZ-119”, “AZ-1350”, Tokyo Ohka Group “TPR”, “Okaresist”, manufactured by Fuji Pharmaceutical”
FPPR, etc., and all of these can be used.

In addition, a photo-soluble resin system containing a compound that can generate an acid upon irradiation with actinic rays and a compound that has at least one bond that can be decomposed by an acid can also be used.

Quinonediazide compounds are useful as photosensitive compositions.

Specifically, 1,2-benzoquinonediazide-4-sulfonyl chloride, 1,2-naphthoquinonediazide-4
-manifonyl chloride, 1.2-naphthoquinonediazide-6-sulfonyl chloride, 1.2-naphthoquinonediazide-6-sulfonyl chloride and hydroxyl group and/or
Alternatively, a compound obtained by condensing an amino group-containing compound is preferably used.

Examples of the hydroxyl group-containing compound include trihydroxybenzophenone, dihydroxyanthraquinone, bisphenol A1 phenol novolak resin, resorcin benzaldehyde condensation resin, and pyrogallol acetone condensation resin. In addition, examples of amino group-containing compounds include aniline, p-aminodiphenylamine, p-aminobenzophenone, 4,4'-diaminodiphenylamine,
Examples include 4,4-diaminobenzophenone.

Regarding quinonediazide compounds, including those described herein, see "LightSen" by J. KOSAR.
sitive System” (Wiley & 5
ons+ New York.

1965) and “Photosensitive Polymers” by Inui Yonematsu (Kodansha).

(1977).

As the coloring agent used in the present invention, dyes and pigments can be used. In particular, when used for color proofing, pigments and dyes with a tone matching the usual colors required for that purpose, such as yellow, magenta, cyan, and black, are required, but in addition, metal powders, white pigments, fluorescent pigments, etc. is also used. The following examples are some of the many pigments and dyes known in the art.

(C,I means color index) Victoria Pure Blue (C0I 42595) Auramine O (C,I 41000) Cararon Brilliant Flavin (C,!Basic 13) Rhodamine GGCP (C0I 45160) Rhodamine B (C,I 45170) ) Safranin 0K70:
100 (C, I 50240) 'Erioglaucine X (C, 142080) First Blank HB
(C, I 26150)! 1h1201 Lionor Yellow (C, I 21090) Lionor Yellow GRO
(C, I 21090) Shimla Fast Yellow 8
GF (C,I 21105) Benzidine Yellow 4
D-5640 (C, I 21095) Shimla Firth Trend 4015 (C, I 12355) Lionor Red 7B4401 (C, 115830) First Gen Blue TGR-L (C, I 74160) Lionor Blue SM (C, I 26150) Mitsubishi Carbon Black MA-100 Mitsubishi Carbon Black 130.1140.150 The content ratio of the colorant can be determined by a method known to those skilled in the art, taking into consideration the target optical density and removability to the developer. For example, in the case of dyes, the content is 5% to 75% by weight, and in the case of pigments, the content is 5% by weight.
~90% is appropriate.

Since the photosensitive composition and coloring agent described above have poor or poor film-forming properties, it is preferable to use a binder to form a film.

As this binder, a polymer compound that is film-formable, solvent-soluble, and capable of being dissolved or swollen in a developer is used.

Specific examples of this polymer compound include acrylic acid, methacrylic acid and their alkyl esters or sulfoalkyl esters, phenol resins, polyvinyl butyral,
Cellulose derivatives such as polyacrylamide, ethyl cellulose, acetic acid/cellulose acetate, cellulose acetate propionate, cellulose acetate, benzyl cellulose, cellulose propionate, other polystyrene, polyvinyl chloride, chlorinated rubber, polyisobutylene, polybutadiene, polyvinyl acetate, and copolymers thereof, cellulose acetate, cellulose propionate, cellulose acetate phthalate, and the like.

In order to produce the image forming material according to the present invention, each of the layer-forming materials for the photosensitive composition layer and the adhesive layer described above is dissolved in an appropriate solvent and subjected to the mold release treatment described above or a support having an undercoat layer. They can be applied to the body sequentially or simultaneously.

As a solvent, water, methanol, ethanol, acetone, ethyl acetate, methyl cellosolve, ethyl cellosolve,
dioxane, methyl ethyl ketone, cyclohexanone,
Diethylene glycol monomethyl ether, γ-butyrolactone, tetrahydrofuran, methylene chloride,
Examples include ethylene chloride, dimethyl sulfoxide, dimethyl formamide, etc., and these can be used alone or in combination of two or more.

The image forming material according to the present invention produced in this manner is first imagewise exposed to actinic light.

Various light sources are used for imagewise exposure, such as an ultra-high pressure mercury lamp, a tungsten lamp, a mercury lamp, a xenon lamp, a fluorescent lamp, a CRT light source, and a laser light source.

The image-forming material thus imagewise exposed forms an image with an aqueous developer capable of penetrating the adhesive layer and dissolving or lubricating the non-image areas without dissolving the image in the photosensitive composition layer.

Next, the obtained colored image is transferred onto a transfer device, for example, white paper. Specifically, the colored image and white paper are superimposed,
Pass through a laminator under heat and pressure. The colored image is adhered to the white paper via the adhesive layer due to the heat and pressure applied during the passage, and is transferred.

When creating a multicolor proof sheet, the above exposure, development, and transfer steps are repeated for the required number of colors.

The obtained multicolor proofing sheet has only the colored image transferred onto the white paper, and is extremely similar to a printed matter.

〔Example〕

Examples will be given below, but the present invention is not limited thereto.

<Example 1> Four colored photosensitive layer dispersions having the following compositions were prepared and applied to a release-treated polyethylene terephthalate film (trade name, manufactured by Tuft Tsubu Toshi Al) so that the dry film thickness was 2 μm.

Photosensitive resin having the following structure (average molecular weight 800) 1.15 g Phenol resin having the following structure (average molecular weight 2000) 3.85 gυH Pigment below 1.5 g Methyl cellosolve 25 g Methyl ethyl ketone 25 g (pigment) Black: Carbon blank # 50 (manufactured by Mitsubishi Kasei) Yellow: Chromophthal Yellow 86 (manufactured by Ciba Geigy) Magentani Chrome Phthal Red A (〃 ) Cyanichrome Phthal Blue 4GN (〃) Next, as an intermediate layer, a coating solution with the following composition was applied to a dry film thickness of 0. It was coated on the colored photosensitive layer to a thickness of 0.05 μm.

N-(2-aminoethyl)3-aminopropyltrimethoxysilane (trade name 5H-6020, manufactured by Toshi Silicone ■)
5g water
50 g Next, as an adhesive layer, the following emulsion was applied onto the intermediate layer so that the dry film thickness was 1 μm.

Ethylene-vinyl acetate copolymer emulsion (product name 0M
-28 (Contains PVA 10χH) manufactured by Kuraray n) g Water 50
g After that, in order to maintain the adhesion between the colored window light layer and the adhesive layer,
Heat treatment was performed at 100°C for 4 minutes.

The resulting four-color image forming material was superimposed on a color-separated positive mask for each color, and imagewise exposed from the polyethylene terephthalate film side from a distance of 50 cm using a 3KW metal halide lamp. ) in a 10-fold diluted solution for 60 seconds and developed with a cellulose sponge to obtain a four-color image. These are 175
Halftone dots of 2% to 98% of LPI were reproduced, corresponding to the colored image, and the adhesive layer was reproduced (remained).

Place the previously obtained yellow image on art paper and heat it at 100°C.
The color image was transferred to art paper by passing it between a pair of nip rolls heated to . Subsequently, color images were transferred in the order of magenta, cyan, and black to obtain a color proofing sheet consisting of four colors on art paper.

The resulting color brief had only the image directly transferred onto the art paper, and was extremely similar to a printed matter.

<Example 2> An undercoat layer coating solution having the following composition was applied onto a polyethylene terephthalate film to prepare a support having a releasable surface.

Alcohol-soluble nylon 2g (product name:
Ultramit LC (manufactured by BASF) Hydroxystyrene 2 g (trade name: Niresin M, manufactured by Maruzen Oil Co., Ltd.) Methanol 40 g Methyl cellosolve 10 g Next, a photosensitive solution having the following composition was prepared and coated to give a dry film thickness of 1 μm.

Pentaerythritol tetraacrylate 43.2 g Copolymer of benzyl methacrylate and methacrylic acid (B
MA/MA・73/27 molar ratio) 60 g Michler's ketone 0.41 g benzophenone 2.54 g paramethoxyphenol 0.12 g methyl cellosolve
Next, as an intermediate layer, a coating solution having the following composition was coated on the photosensitive layer so that the dry film thickness was 0.1 μm.

Polyvinyl alcohol 10g (product name pv
Hachihe 117 (manufactured by Kuraray) Glyoxal 0.3g water
100g Next, as an adhesive layer, 0 pigment (same as in Example 1) was added to a coating solution with the following composition.
．． 6g was added and dispersed and coated on the intermediate layer so that the dry film thickness was 2 μm.

Alcohol-soluble nylon 2g (product name:
CM-8000 manufactured by Toshisha) Water-soluble nylon
2g (Product name: 1-70 manufactured by Toshisha) Methanol 35g Water
After that, heat treatment was performed at 100° C. for 4 minutes in order to improve the adhesion between the photosensitive layer and the colored adhesive layer.

The obtained four-color image forming material was imagewise exposed from the film surface using a color separation negative mask in the same manner as in Example 1, and then 5DN-
21 (Konica PS plate developer: manufactured by Konica ■) for 60 seconds and developed with a cellulose sponge to obtain a four-color image. These are 2% to 98% of 175LPI
The halftone dots were reproduced, and the colored adhesive layer remained with good reproduction in correspondence with the image.

The obtained color image was brought into close contact with art paper in the same manner as in Example 1,
The material was passed between nip rolls heated to 100° C. to obtain a color proofing sheet consisting of four colors on art paper.

The resulting color proof had only the image directly transferred onto the art paper, and was extremely similar to a printed matter.

<Example 3> The colored photosensitive layer dispersion used in Example 1 was mixed with a dry film thickness of 0.
It was coated onto a polyethylene terephthalate film having a polypropylene release treatment layer to a thickness of 5 μm.

Next, as an intermediate layer, a coating solution having the following composition was applied to a dry film thickness of 0.
It was coated on the colored photosensitive layer to a thickness of 1 μm.

Water-soluble diazo resin 5g (Diaz
o Re5in #4 + Fairmount Chemical Co.) Water 50
g Next, a pigment was added and dispersed in the following emulsion and applied as a colored adhesive layer on the photosensitive layer so that the dry film thickness was 2 μm.

Paraffin wax emulsion 20g (solid content 3
0%) Pigment of Example 1 1.2g Polyvinyl alcohol 0.3g (Product name PVA-
117 (manufactured by Kuraray) Water 3
After warping, heat treatment was performed at 100° C. for 8 minutes in order to improve the adhesion between the colored photosensitive layer and the colored adhesive layer.

The obtained four-color image forming materials were treated in the same manner as in Example 1.
A color proofing sheet consisting of colors was obtained. In these cases, halftone dots of 2% to 98% of 175LPI were reproduced, corresponding to colored images, and the colored adhesive layer remained with good reproduction.

The resulting four-color image was passed through a pair of nip rolls heated to 100°C in the order of yellow, magenta, cyan, and black, and the color image was transferred onto art paper to obtain a color proofing sheet. .

The resulting color proof had only the image directly transferred onto the art paper, and was extremely similar to a printed matter.

Comparative Example> Example 1 except that the intermediate layer was not used.
When carried out in the same manner as above, the color image on the release-treated polyethylene terephthalate after development was 10% to 175LPI.
Only 90% halftone image is reproduced, small dots are missing, 90%
Some of the shadows above were not developed. Furthermore, there were some areas where the adhesive layer did not remain on the colored image. Therefore, the color proof obtained was different from the color tone of the printed matter.

〔Effect of the invention〕

As described above, according to the present invention, the processing process becomes simple and it is possible to obtain a transferred image that is similar to a printed matter.

Moreover, the reproducibility and transferability of the halftone image are both excellent.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of an example of the layer structure of a colored transfer image forming material, FIG. 2 is a cross-sectional view of the finally obtained color proof, and FIG.
The figure and FIG. 4 are cross-sectional views of examples of other σ image forming materials. 1... Transparent support, 2.2A... Photosensitive composition layer,
3... Intermediate layer, 4... Adhesive layer, 5... Transfer material.

Claims (1)

[Claims] (1) A support has a photosensitive composition layer, a water-permeable and water-insoluble adhesive layer as the outermost layer, and an intermediate layer between these layers, and a colorant is applied to at least one layer. 1. A colored transfer image forming material comprising: a color transfer image forming material, wherein the intermediate layer is a layer having a function of further increasing adhesiveness between a photosensitive composition layer and an adhesive layer.