JPH07333836A - Photosensitive transfer sheet - Google Patents

Abstract

PURPOSE:To obtain a photosensitive transfer material giving a final image excellent in image quality under any of the conditions of a low temp. and high humidity by incorporating a specified polymer into a peelable layer. CONSTITUTION:The peelable layer contg. at least an org. polymer and a photosensitive layer contg. a coloring material or a laminate consisting of a coloring material layer and a photosensitive layer are successively formed on a substrate to obtain the objective photosensitive transfer sheet. The peelable layer contains at least one kind of polymer having repeating units represented by the formula, wherein R<1> is H or methyl, A is 6-10C aryl, X is COO, CONR<6>, COO-R<7>- or CONR<2>-R<7>-, each of R<2>-R<6> is H, 1-6C alkyl or 6-10C aryl, R<7> is 1-10C alkylene or aralkylene and (n) is an integer of 1-3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photosensitive transfer sheet which is excellent in transferability and image formability under both low and high humidity conditions. The transfer sheet according to the present invention is very useful for producing a color proof for color proofing, a display and the like.

[0002]

2. Description of the Related Art Conventional color proofing methods (prepress proofing) using a photopolymer include an overlay method and a surprint method. The overlay method is a method in which a plurality of sheets each having a separated image of each color provided on a transparent support are prepared, and these sheets are overlapped to perform color calibration. The surprint method is one sheet. It is a method of sequentially forming a separated image of each color on a support to form a multicolor image.

As an image-forming material usable in both the overlay method and the surprint method, for example, JP-A-59-97140 discloses an organic polymer on a support (hereinafter also referred to as a temporary support). There is disclosed a photosensitive transfer sheet in which a release layer and a photosensitive resin layer are sequentially provided. A color proofing sheet having a multicolor image for color proofing is formed by exposing and developing this photosensitive transfer sheet to form a decomposed image, and then repeating the operation of transferring the decomposed image onto an arbitrary support. Is obtained by

To obtain good transferability in a photosensitive transfer sheet having a support, a release layer made of an organic polymer, and a photosensitive resin layer (or a laminate of a color material layer and a photosensitive layer) in this order. The properties of the release layer play an important role.
As materials for such a release layer, copolymer nylon, N-
Alcohol-soluble polyamides such as alkoxymethyl nylon are known, but when used alone, the peeling layer easily absorbs water, so that the adhesiveness to the temporary support increases under high humidity. Transfer may not be possible. Also,
In the release layer made of the soluble polyamide, stains such as dyes and pigments are liable to remain during development, and so-called fog of color material tends to occur.

JP-A-61-188537 discloses a mixture of an alcohol-soluble polyamide and a hydroxystyrene polymer as a release layer material for a photosensitive transfer sheet as a method for improving the above-mentioned drawbacks. ing. According to this method, a release layer having excellent moisture resistance can be formed on the support. As a result, the peeling layer does not substantially absorb water even when the atmosphere in the step of transferring the decomposed image is high humidity, so that the transfer sheet on which the image is formed is supported on a support such as an image receiving sheet. After thermocompression bonding, the support of the transfer sheet (temporary support) can be easily peeled from the release layer. In other words, the transfer operation can be performed without being affected by conditions such as humidity. Further, in the developing process for forming a decomposed image on the photosensitive transfer sheet, stains due to coloring materials such as dyes and pigments hardly occur on the peeling layer, and fogging of coloring materials is significantly prevented. You can

However, in the case of producing a gang proof (a proof produced by a method by multi-sided printing), a transfer sheet exposed and developed by multi-sided printing is used before the transfer step for the second and subsequent colors. , It is necessary to cut with scissors or the like in order to align each document. When the transfer sheet having the above-mentioned release layer is used, cutting powder is likely to be generated during this cutting, and the cutting powder may adhere to the transfer sheet in some cases. As a result, there is a problem that the produced color proof looks like dust or foreign matter and the quality of the color proof is significantly impaired.

When handling a photosensitive transfer sheet that has been exposed and developed, if the size is large, a knick easily occurs,
Film floating (a phenomenon in which the image formed on the peeling layer peels from the support along with the peeling layer) occurs at the location where the knick occurs, or the image is missing (the image formed on the peeling layer causes the peeling layer to disappear). Along with this, there is a problem of causing cracking and chipping).

Further, the above-mentioned chips, film floating, image loss, etc. tend to occur remarkably under low humidity, which is a problem, for example, in winter when the humidity tends to be low. JP-A-3-126037 describes a release layer composed of an alcohol-soluble polyamide containing a basic compound and an alkali-soluble organic polymer, but in this system, the above-mentioned chips, film floating, and image It was not preferable to add the basic compound in an amount necessary for improving the loss and the like because the transferability was deteriorated. As described above, a photosensitive transfer material which has a good transfer property under both low and high humidity conditions, has no developer resistance and color material fog, and has no flaking has been heretofore known.

[0009]

SUMMARY OF THE INVENTION The main object of the present invention is to provide a light-sensitive material effective for obtaining an image having excellent image quality. It is an object of the present invention to provide a photosensitive material useful as a photosensitive transfer material which is effective for obtaining a final image having excellent image quality under both low humidity and high humidity conditions.

[0010]

An object of the present invention is to provide a release layer containing at least (1) an organic polymer on a support,
And (2) a photosensitive transfer sheet having a color material-containing photosensitive layer or a laminate of a color material layer and a photosensitive layer in this order, wherein the release layer comprises a polymer having a repeating unit represented by the following general formula (I). Achieved by a photosensitive transfer sheet containing at least one kind.

[0011]

[Chemical 2]

[Wherein R ¹ is a hydrogen atom or a methyl group:
A is an aryl group having 6 to 10 carbon atoms (the aryl group is an alkyl group having 1 to 6 carbon atoms, an aryl group having 6 to 10 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, a halogen, a cyano group) , COOH, COOR ² , COR ³ , CON
R ⁴ R ⁵ , one or more nitro groups, and a combination of two or more thereof): X is COO, C
ONR ^6, COO-R ⁷ - or CONR ² -R ⁷ -: R
² , R ³ , R ⁴ , R ⁵ and R ⁶ are hydrogen atoms and have 1 to 10 carbon atoms.
An alkyl group having 6 to 6 carbon atoms or an aryl group having 6 to 10 carbon atoms, wherein the alkyl group and / or aryl group is at least one of a hydroxy group, an alkoxy group having 1 to 6 carbon atoms, halogen, a cyano group, and (It may be substituted with a combination of two or more kinds): R ⁷ has 1 to 10 carbon atoms.
Of alkylene or aralkylene (the alkylene and / or aralkylene may have a branch and may contain an ether bond, OCO, COO, or a combination of two or more thereof): n is an integer of 1 to 3: Indicates. The present invention will be described in detail below.

As the support of the photosensitive transfer sheet according to the present invention, for example, various supports described in the above-mentioned publicly known publications can be used. It is necessary that this support is flexible, preferably ultraviolet-transparent, and does not undergo significant deformation, shrinkage or elongation even under pressure or under pressure and heat. Specific examples of such a support include polyethylene terephthalate film, polypropylene film, polyethylene film, polyvinyl chloride film, cellulose triacetate film, polystyrene film, polycarbonate film and the like. Among these, biaxially stretched polyethylene terephthalate film is particularly excellent in strength, heat resistance, dimensional stability, transparency and the like. The thickness of the support is not particularly limited, but about 20 to 150 μm is suitable.

The release layer provided on the support contains at least one polymer having a repeating unit represented by formula (I). The polymer having the repeating unit represented by the general formula (I) is obtained by polymerizing the monomer represented by the following general formula (II) in the presence of a polymerization initiator in a suitable solvent or without a solvent according to a conventional method. It is obtained by

[0015]

[Chemical 3]

[The symbol in the general formula (II) is the general formula (I).
Synonymous with]] Specific examples of the monomer represented by the general formula (II) include:
As the (meth) acrylamide derivative, N- (p-hydroxyphenyl) (meth) acrylamide, N- (m-
Hydroxyphenyl) (meth) acrylamide, N-
(O-hydroxyphenyl) (meth) acrylamide,
N- (5-methyl-2-hydroxyphenyl) (meth)
Acrylamide, N- (4-methyl-3-hydroxyphenyl) (meth) acrylamide, N- (4-t-butyl-2,5-dihydroxyphenyl) (meth) acrylamide, N- (5-chloro-2-hydroxy) Phenyl)
(Meth) acrylamide, N- (2-chloro-4-hydroxyphenyl) (meth) acrylamide, N- (3,
5-dichloro-4-methyl-2-hydroxyphenyl)
(Meth) acrylamide, N- (3,5-dichloro-4
-Hydroxyphenyl) (meth) acrylamide, N-
(3,5-Dibromo-4-hydroxyphenyl) (meth) acrylamide, N- (4-hydroxy-3-methoxycarbonylphenyl) (meth) acrylamide, N
-(2-hydroxy-4-nitrophenyl) (meth) acrylamide, N- (2-hydroxy-6-nitrophenyl) (meth) acrylamide, 2-hydroxy-5-
(Meth) acryloylaminobenzoic acid, 2-hydroxy-4- (meth) acryloylaminobenzoic acid, 3-hydroxy-4- (meth) acryloylaminobenzoic acid, N
-Methyl-N- (p-hydroxyphenyl) (meth) acrylamide, N- (2-hydroxyethyl) -N-
(P-hydroxyphenyl) (meth) acrylamide,
N- (2-methoxyethyl) -N- (p-hydroxyphenyl) (meth) acrylamide, N- (2-cyanoethyl) -N- (p-hydroxyphenyl) (meth) acrylamide, N-methyl-N- ( m-hydroxyphenyl) (meth) acrylamide, N-ethyl-N- (m-
Hydroxyphenyl) (meth) acrylamide, N-amyl-N- (m-hydroxyphenyl) (meth) acrylamide, N-isoamyl-N- (m-hydroxyphenyl) (meth) acrylamide, N-phenyl-N-
(M-hydroxyphenyl) (meth) acrylamide,
N, N-bis (m-hydroxyphenyl) (meth) acrylamide, 7-hydroxy-1- (meth) acryloylaminonaphthalene, 5-hydroxy-1- (meth) acryloylaminonaphthalene, 3-hydroxy-2-
(Meth) acryloylaminonaphthalene, N- (2-
Examples of (meth) acrylate derivatives such as (p-hydroxyphenyl) ethyl) (meth) acrylamide are p-hydroxyphenyl (meth) acrylate, m-hydroxyphenyl (meth) acrylate, o-hydroxyphenyl (meth) acrylate, (3 , 5-dihydroxyphenyl) (meth) acrylate, 2,3-dihydroxyphenyl (meth) acrylate, 2,6-dihydroxyphenyl (meth) acrylate, 2,4,5-trihydroxyphenyl (meth) acrylate, (3,3 5-di-
t-butyl-4-hydroxyphenyl) (meth) acrylate, (4-t-butyl-2-hydroxyphenyl)
(Meth) acrylate, (5-t-butyl-2-hydroxyphenyl) (meth) acrylate, (4-methyl-)
2-hydroxyphenyl) (meth) acrylate, (5
-Methyl-2-hydroxyphenyl) (meth) acrylate, (3-methoxy-2-hydroxyphenyl) (meth) acrylate, (6-methoxy-2-hydroxyphenyl) (meth) acrylate, (4-chloro-3-) Hydroxyphenyl) (meth) acrylate, (2-chloro-5-hydroxyphenyl) (meth) acrylate,
p-acetyl-m-hydroxyphenyl (meth) acrylate, (3-hydroxy-4-benzoylphenyl)
(Meth) acrylate, (2,3-dihydroxy-5-
Ethoxycarbonylphenyl) (meth) acrylate,
3-hydroxy-2- (meth) acryloyloxynaphthalene, 2- (p-hydroxybenzoyloxy) ethyl (meth) acrylate, 3- (p-hydroxybenzoyloxy) propyl (meth) acrylate, 6- (p
-Hydroxybenzoyloxy) hexyl (meth) acrylate, 2- (p-hydroxy-m-chlorobenzoyloxy) ethyl (meth) acrylate, 2- (2'-
Examples include (p-hydroxybenzoyloxy) ethoxy) ethyl (meth) acrylate and 2- (p-hydroxyphenoxy) ethyl (meth) acrylate.

A copolymer obtained by copolymerizing the monomer represented by the general formula (II) with another copolymerizable monomer within a range not impairing the performance of the photosensitive transfer sheet of the present invention. Available. Specific examples of such a monomer include acrylic acid, methacrylic acid, and
Itaconic acid, crotonic acid, maleic acid, vinyl benzoic acid, cinnamic acid, vinyl benzene sulfonic acid, 2- (meth)
Acrylamide-2-methylpropanesulfonic acid, maleimide, N-acetyl (meth) acrylamide, N-propionyl (meth) acrylamide, N-butanoyl (meth) acrylamide, N-pentanoyl (meth) acrylamide, N-decanoyl (meth) acrylamide Examples of the monomer containing no acidic group are selected from (meth) acrylic acid esters, (meth) acrylamides, allyl compounds, vinyl ethers, vinyl esters, styrenes, and crotonic acid esters. Examples include monomers. Specifically, for example, (meth) acrylic acid esters such as alkyl (meth) acrylate or substituted (meth) alkyl acrylate (for example, methyl (meth) acrylate, ethyl (meth) acrylate). , Propyl (meth) acrylate, isopropyl (meth) acrylate, butyl (meth) acrylate, amyl (meth) acrylate, hexyl (meth) acrylate, cyclohexyl (meth) acrylate, ethylhexyl (Meth) acrylate, octyl (meth) acrylate
, T-octyl (meth) acrylate, chloroethyl (meth) acrylate, allyl (meth) acrylate,
2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, 4-hydroxybutyl (meth) acrylate, 2,2-dimethyl-3-
Hydroxypropyl (meth) acrylate, 5-hydroxypentyl (meth) acrylate, trimethylolpropane mono (meth) acrylate, pentaerythritol-
Lumono (meth) acrylate, benzyl (meth) acrylate, methoxybenzyl (meth) acrylate, chlorobenzyl (meth) acrylate, furfuryl (meth)
Acrylate, tetrahydrofurfuryl (meth) acrylate, phenoxyethyl (meth) acrylate and the like): aryl (meth) acrylate (for example, phenyl (meth) acrylate, naphthyl (meth) acrylate)
And the like): (meth) acrylamides, such as (meth) acrylamide, N-alkyl (meth) acrylamide (as the alkyl group, for example, methyl group, ethyl group, propyl group, butyl group, t-butyl group, heptyl) Group, octyl group, ethylhexyl group, cyclohexyl group, hydroxyethyl group, benzyl group, etc.),
N-aryl (meth) acrylamide (the aryl group includes, for example, phenyl group, tolyl group, nitrophenyl group, naphthyl group, etc.), N, N-dialkyl (meth) acrylamide (the alkyl group includes, for example, Methyl group, ethyl group, butyl group, isobutyl group, ethylhexyl group, cyclohexyl group, etc.), N,
N-diaryl (meth) acrylamide (the aryl group includes, for example, a phenyl group), N-methyl-N-phenyl (meth) acrylamide, N-hydroxyethyl-N-methyl (meth). Acrylamide, N-
2-acetamidoethyl-N-acetyl (meth) acrylamide, N- (phenylsulfonyl) (meth) acrylamide, N- (p-methylphenylsulfonyl) (meth) acrylamide, etc .: Allyl compounds, such as allyl esters (eg, allyl acetate) , Allyl caproate, allyl caprylate, allyl laurate, allyl palmitate, allyl stearate, allyl benzoate, allyl acetoacetate, allyl lactate, etc.), allyloxyethanol, etc .: vinyl ethers such as alkyl vinyl ether -Ter (as the alkyl group, for example, hexyl group, octyl group, decyl group, ethylhexyl group, methoxyethyl group,
Ethoxyethyl group, chloroethyl group, 1-methyl-2,
2-dimethylpropyl group, 2-ethylbutyl group, hydroxyethyl group, hydroxyethoxyethyl group, dimethylaminoethyl group, diethylaminoethyl group, butylaminoethyl group, benzyl group, tetrahydrofurfuryl group, etc.), vinyl aryl group Ter (the aryl group includes, for example, phenyl group, tolyl group, chlorophenyl group, 2,4-dichlorophenyl group, naphthyl group, anthranyl group, etc.); vinyl esters, such as vinyl butyrate, vinyl isobutyrate, Vinyl trimethyl acetate, vinyl diethyl acetate, vinyl valet, vinyl caproate, vinyl chloroacetate,
Vinyl dichloroacetate, vinyl methoxyacetate
, Vinyl butoxyacetate, vinylphenyl acetate, vinyl acetoacetate, vinyl lactate, vinyl-β-phenylbutyrate, vinylcyclohexylcarboxylate, vinyl benzoate, vinyl salicylate, vinyl chlorobenzoate. , Vinyl tetrachlorobenzoate, vinyl naphthoate, etc .: Styrenes such as styrene, alkylstyrene (eg methylstyrene, dimethylstyrene, trimethylstyrene, ethylstyrene, diethylstyrene, isopropylstyrene, butylstyrene, hexylstyrene, cyclohexylstyrene, decylstyrene) , Benzyl styrene, chloromethyl styrene, trifluoromethyl styrene, ethoxymethyl styrene, acetoxymethyl styrene, etc.), alkoxy styrene (eg metoxy). Styrene, 4-methoxy-3-
Methylstyrene, dimethoxystyrene, etc.), halogenostyrene (eg chlorostyrene, dichlorostyrene,
Trichlorostyrene, tetrachlorostyrene, pentachlorostyrene, bromostyrene, dibromostyrene, iodostyrene, fluorostyrene, trifluorostyrene, 2-bromo-4-trifluoromethylstyrene, 4
-Fluoro-3-trifluoromethylstyrene, etc.),
Hydroxystyrene, etc .: Crotonic acid esters, for example, alkyl crotonic acid (eg, butyl crotonic acid, hexyl crotonic acid, glycerin monoclonate, etc.): Dialkyl itaconic acid (for example, dimethyl itaconic acid, diethyl itaconic acid, dibutyl itaconic acid, etc.) ): Dialkyls of maleic acid or fumaric acid (eg dimethyl maleate, dibutyl fumarate, etc.): (meth) acrylonitrile and the like.

When the monomer represented by the general formula (II) is copolymerized with another monomer which can be copolymerized, the ratio of the monomer represented by the general formula (II) is 10 mol%. It is preferably not less than 50 mol%, more preferably not less than 50 mol%.

Preferred specific examples of the polymer having the repeating unit represented by the general formula (I) are poly (N).
-(P-hydroxyphenyl) (meth) acrylamide), poly (N- (m-hydroxyphenyl) (meth)
Acrylamide), poly (N-methyl-N- (p-hydroxyphenyl) (meth) acrylamide), poly (N
-(2- (p-hydroxyphenyl) ethyl) (meth)
Acrylamide), N- (p-hydroxyphenyl)
Examples thereof include (meth) acrylamide / 2-hydroxyethyl (meth) acrylate copolymer and N- (p-hydroxyphenyl) (meth) acrylamide / hydroxystyrene copolymer.

Incidentally, such a resin having a phenolic hydroxyl group is already widely known, and there are also known examples in which it is used in various photosensitive resin compositions. Japanese Patent Publication No. 5-2138 and Japanese Patent Laid-Open No. 5-265198 are examples of this kind.
Japanese Patent Application Laid-Open Nos. 4-152345 and 4-10755.
7, JP-A-3-68946, JP-A-1-30234.
No. 7, JP-A No. 1-173027, and the like.
However, in all of these examples, a resin having a phenolic hydroxyl group is used in combination with a diazo resin, a quinonediazide compound or the like, which is a different form from the present invention.

A more preferable form of the release layer provided on the support is a polymer containing at least one of a polymer having a repeating unit represented by formula (I) and an alcohol-soluble polyamide. As the alcohol-soluble polyamide, a linear polyamide synthesized from a dibasic fatty acid and a diamine, ω-amino acid, lactam or a derivative thereof by a known method can be used. The linear polyamide may be a homopolymer, a random copolymer or a block copolymer. Further, a polyamide having a substituent on a carbon atom or a nitrogen atom constituting the main chain and a polyamide having a bond other than a C—C bond or a C—N—C bond in the main chain can also be used.

Typical examples of such alcohol-soluble polyamides include nylons 3, 4, 5, 6, 11, 1
2,13,6,6,6,10,13,13, a polymer of xylylenediamine and adipic acid, a polymer of trimethylhexamethylenediamine and terephthalic acid, a polymer of 1,4-diaminocyclohexane and suberic acid Linear homopolyamides such as polymers; nylon 66, 6/66/610, 6
/ 66/610/612, 6/66/12, ε-caprolactam / adipic acid / hexamethylenediamine / 4,
Copolymer with 4'-diaminodicyclohexylmethane;
And N-methylol-substituted products of these polyamides, N
Examples include derivatives such as -alkoxyalkyl-substituted products and N-aryloxyalkyl-substituted products. As a commercial item, Ultramid 1C (manufactured by BASF), Daiamide X-18
748 (manufactured by Daicel Huls), CM-8000, C
M-4000 (manufactured by Toray Industries, Inc.), MF-30 (Teikoku Chemical Industry) and the like are available.

The alcohol-soluble polyamide used in the present invention has a viscosity (viscosity of a 10 wt% methanol solution at a temperature of 20 ° C.) of 0.2 to 70 cp.
Those in the range of s are preferable. The above alcohol-soluble polyamides may be used alone or in combination of two or more.

The ratio of the alcohol-soluble polyamide to the polymer having the repeating unit represented by the general formula (I) in the release layer of the present invention is preferably 90:10 to 0: 100 weight ratio, particularly preferably 80:20 to 20. : 80 weight ratio. When the proportion of the polymer having the repeating unit represented by the general formula (I) is less than 10% by weight, the transferability is particularly poor under high humidity conditions. Further, in particular, it is preferably used in combination with an alcohol-soluble polyamide in order to improve the releasability from the support. Further, the release layer may contain an alcohol-soluble polyamide and a polymer other than the polymer having the repeating unit represented by the general formula (I) or other additives.

In the release layer, a polymer having the repeating unit represented by the general formula (I) or both the alcohol-soluble polyamide and the polymer having the repeating unit represented by the general formula (I) are used in a suitable solvent. It can be formed by dissolving and adjusting the coating solution, and then coating and drying the coating solution on the support. Various kinds of surfactants can be added to the coating liquid as a surface condition improver, and fluorine-based surfactants are particularly effective. The thickness of the release layer is generally in the range of 0.1 to 10.0 μm, and particularly 0.3 to 2.
The range of 0 μm is preferable.

Next, a colorant-containing photosensitive layer or a laminate of a colorant layer and a photosensitive layer is formed on the release layer. First, the case of the color material-containing photosensitive layer will be described. The color material-containing photosensitive layer is a layer in which a photosensitive component and a color material are dispersed in an organic polymer (binder).

As the coloring material, there are pigments and dyes. The color materials that can be used are described in the above-mentioned various publications, and those color materials can be appropriately selected and used as desired. These are disclosed, for example, in JP-A-47-16124, JP-A-52-89916, US Pat. No. 4,472,494, JP-A-55-117142, and JP-A-55-127552.
It is possible to use various pigments and dyes described in JP-A No. 59-97140, JP-A No. 59-97140 and the like, and color indexes and the like. Particularly when used as a color proof for printing, it is preferable to use a pigment system in order to match the color reproducibility with the printed matter. The ratio of the color material in the color material-containing photosensitive layer varies depending on the purpose, but is preferably 5 to 50% by weight.

Further, regarding the organic high molecular weight polymer containing the coloring material, there are also descriptions in the above-mentioned various publications and the like, and although it is possible to use these various organic high molecular weight polymers,
It is preferable to use an alkali-soluble organic polymer. Examples of the alkali-soluble organic polymer include US Pat. No. 2,893,368 (polymers containing salt-forming groups), US Pat. No. 2,927,022 (cellulosic polymers containing acid groups), West German patent (OLS). 21237
02 (for example, methyl methacrylate / methacrylic acid copolymer), West German Patent (OLS) No. 2205146 (for example, styrene / mono-n-butylmalate copolymer, or vinyl acetate / crotonic acid copolymer), West German patent (OLS) No. 2320849 (for example, acrylic acid / alkyl acrylate copolymer), JP-B-59-44
615 (for example, methacrylic acid / aralkyl methacrylic acid copolymer), JP-A-47-16124 and JP-A-52.
-89916, U.S. Pat. No. 4,472,494, JP-A-55-117142, JP-A-55-127552 and the like, organic polymer, phenolic resin, rosin,
Polyhydroxystyrene and the like can also be used.

Next, as a typical example of the light-sensitive material of the color material-containing light-sensitive layer, a combination of an addition polymerizable unsaturated monomer, a photopolymerization initiator and a photopolymerization initiator system can be mentioned. As an example of the addition-polymerizable unsaturated monomer, a compound having at least one addition-polymerizable ethylenically unsaturated group in the molecule and having a boiling point of 100 ° C. or higher at normal pressure is suitable. Specifically, monofunctional acrylates and monofunctional methacrylates such as polyethylene glycol mono (meth) acrylate, polypropylene glycol mono (meth) acrylate, and phenoxyethyl (meth) acrylate. Polyethylene glycol di (meth) acrylate, polypropylene glycol di (meth) acrylate, trimethylolethane triacrylate, trimethylolpropane triacrylate, trimethylolpropane diacrylate, neopentyl glycol di (meth) acrylate, pentaerythritol tetra (meth) acrylate , Pentaerythritol tri (meth) acrylate, dipentaerythritol hexa (meth) acrylate, dipentaerythritol penta (meth) acrylate, hexanediol di (meth) acrylate, trimethylolpropane tri (acryloyloxypropyl) ether, tri (acryloyloxy) Ethyl) isocyanurate, tri (acryloyloxyethyl) cyanurate, glycerin tri Meth) acrylate, after the addition reaction of ethylene oxide or propylene oxide to a polyfunctional alcohol such as trimethylolpropane or glycerol (meth) those acrylated. Japanese Patent Publication No. 48-41708, Japanese Patent Publication No. 50
-6034 and urethane acrylates described in JP-A-51-37193, JP-A-48-6
No. 4183, Japanese Patent Publication No. 49-43191, Japanese Patent Publication No. 52-
Polyfunctional (meth) acrylates such as polyester acrylates and epoxy acrylates, which are reaction products of epoxy resin and (meth) acrylic acid, described in each publication of No. 30490 can be mentioned. More preferably trimethylolpropane tri (meth) acrylate,
Examples thereof include pentaerythritol tetra (meth) acrylate, dipentaerythritol hexa (meth) acrylate, and dipentaerythritol penta (meth) acrylate.

These addition-polymerizable unsaturated monomers may be used alone or in admixture of two or more, and the content in the colorant-containing photosensitive layer is preferably 5 to 50% by weight, more preferably 10% by weight. -40% by weight. If it is less than 5% by weight, photosensitivity and image strength are low, and if it exceeds 50% by weight, the tackiness of the color material-containing photosensitive layer becomes excessive, which is not preferable.

Examples of photopolymerization initiators and photopolymerization initiator systems include vicinal polyketaldonyl compounds disclosed in US Pat. No. 2,367,660, US Pat. No. 24.
Acryloin ether compounds described in U.S. Pat. No. 4,828,028, .alpha.-hydrocarbon substituted aromatic acyloin compounds described in U.S. Pat. No. 2,722,512, U.S. Pat. Nos. 3,046,127 and 2,951,758. Quinone compounds described in U.S. Pat.
No. 9367, a combination of a triarylimidazole dimer and p-aminoketone, JP-B-51-485.
Benzothiazole compounds and trihalomethyl-s-triazine compounds described in JP-A-16, US Pat. No. 42398.
No. 50, JP-A No. 62-58241 and the like, trihalomethyl-s-triazine compounds, and US Pat. No. 4,212,976, trihalomethyl oxadiazole compounds and the like. Particularly preferred are trihalomethyl-s-triazine, trihalomethyloxadiazole, triarylimidazole dimer, benzophenone / Michler's ketone and the like.

These photopolymerization initiators and photopolymerization initiator systems may be used alone or in admixture of two or more. The content in the color material-containing photosensitive layer is preferably 0.5 to 20% by weight. ,
It is more preferably 1 to 15% by weight. If it is less than 0.5% by weight, the photosensitivity and image strength are low, and if it exceeds 20% by weight, no good effect on the performance is recognized.

A photocrosslinking compound can also be used as the photosensitive component. Representative examples of the photocrosslinkable compound include polyvinyl cinnamate derived from polyvinyl alcohol. In addition, compounds having an azide group as a photosensitive group, and polyacrylamide, polyacrylonitrile, alcohol-soluble nylon, rubbers as binders,
Combinations of styrene / butadiene copolymers, phenolic resins and the like can be mentioned.

In addition, a naphthoquinonediazide ester compound can be used as the photosensitive component. A large number of such examples are already known, for example, Japanese Patent Publication No. 36-22.
062, 37-1953, 37-3627,
37-13109, 37-15665, 38
-1801538-12083, 40-10993
No. 40, No. 40-126126, No. 45-27345, No. 40-3801, No. 44-18445, No. 45-5.
The compounds described in each publication such as 604 and 51-13013 can be mentioned. The binder used in combination with such a naphthoquinone diazide ester compound is also preferably alkali-soluble, and a novolak resin is particularly preferable. Specific examples of the novolac resin include U.S. Pat. No. 3,184,310 and U.S. Pat. No. 35.
No. 35157, Japanese Patent Publication No. 50-7482, Japanese Patent Publication No. 50-
No. 8658, Japanese Patent Publication No. 51-14042, Japanese Patent Laid-Open No. 49-
It is described in each publication such as No. 48403. Also, a mixture of a novolac resin and another polymer compound can be used.
Examples of these are U.S. Pat. No. 3,535,157, French Patent No. 1542334, and Japanese Patent Publication No. 41-16259.
No. 4, Japanese Patent Publication No. 44-23323, Japanese Patent Publication No. 49-3696
Examples thereof include those described in No. 1 and the like. Other than this, for example, a (meth) acrylic acid-based copolymer can also be used.

If desired, additives such as a plasticizer, a pigment dispersion stabilizer and a surfactant may be added to the color material-containing photosensitive layer. The color material-containing photosensitive layer may be provided separately from the color material layer and the photosensitive layer. As the coloring material, the photosensitive component, and the binder resin used for each, the above-mentioned photosensitive component and the binder resin, the coloring material component and the like can be used in combination. Also in this case, the binder resin is preferably soluble in alkali. The color material layer is on the photosensitive layer,
It may be provided on either side of the lower part, but from the viewpoint of sensitivity in the image exposure step, it is preferably provided under the photosensitive layer.

In order to form a color material-containing photosensitive layer or a laminate of a color material layer and a photosensitive layer on the release layer, a coating solution is prepared from the above compound and a solvent as described below, and the coating solution is prepared. A method of coating on the release layer by a usual method and drying can be used. Examples of the solvent for preparation include hydrocarbon solvents (eg toluene, xylene, cyclohexane etc.), halogenated hydrocarbon solvents (eg methyl chloride,
Dichloromethane, chlorophone, 1,2-dichloroethane, etc.), ketone solvents (eg, acetone, methyl ethyl ketone, cyclohexanone, etc.) and ester solvents (eg, methyl acetate, ethyl acetate, propyl acetate, methyl cellosolve acetate, etc.) and the like.

The film thickness of the color material-containing photosensitive layer is 0.2 to 10 μm.
In the case of a laminate of a color material layer and a photosensitive layer, the film thickness is 0.1 to 5 μm, respectively, and when both are laminated, 0.2 to
10 μm is preferable. Further, if necessary, various components such as a thermal polymerization inhibitor, a solvent, an adhesion promoter, a plasticizer, and a surfactant may be added to each layer of the photosensitive resin composition of the present invention. Further, a layer such as a protective layer or an intermediate layer may be further provided in these layer constitutions if necessary. In particular, when the photosensitive component is a combination of an addition polymerizable unsaturated monomer and a photopolymerization initiator, it is preferable to provide a protective layer on the photosensitive resin layer. The protective layer can be formed by applying a solution of a polymer such as polyvinyl alcohol, polyvinyl acetate, a copolymer of methyl vinyl ether / maleic anhydride, polyvinyl pyrrolidone, gelatin, gum arabic, and drying.

The thermal polymerization inhibitor is added for the purpose of increasing the storage stability when a combination of an addition polymerizable unsaturated monomer and a photopolymerization initiator is used as a photosensitive component. Specific examples thereof include hydroquinone, p-methoxyphenol, di-t-butyl-p-cresol, pyrogallol,
t-butylcatechol, benzoquinone, 4,4'-thiobis (3-methyl-6-t-butylphenol), 2,
2'-methylenebis (4-methyl-6-t-butylphenol), 2-mercaptobenzimidazole, phenothiazine and the like can be mentioned.

Examples of the solvent include benzene, toluene,
Xylene, cyclohexane, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, propylene glycol monomethyl ether, propylene glycol monoethyl ether, ethylene glycol monomethyl ether acetate, ethylene glycol monoethyl ether acetate, propylene glycol monomethyl ether acetate, propylene glycol monoethyl ether Acetate, acetone, methyl ethyl ketone, methyl isobutyl ketone, cyclohexanone, methyl acetate, ethyl acetate, propyl acetate, butyl acetate, methyl lactate, ethyl lactate, methanol, ethanol, 1-propanol, 2-propanol, butanol, sec-butanol, t- Butanol, N-methylpyrrolidone, dimethylform Amide, dimethylacetamide, .gamma.-butyrolactone, .epsilon.-caprolactam, dimethyl sulfoxide, hexamethylphosphoramide, and water. These can be used alone or as a mixture of two or more kinds.

The above-mentioned surfactants include anionic, cationic and nonionic surfactants such as 12-18.
Sodium alkylsulfate having one carbon atom, or sodium alkylsulfonate (sodium dodecyl sulfate, sodium octadecylsulfonate, etc.), N-cetylbetaine, C-cetylbetaine, alkylaminocarboxylate and alkylaminodicarboxylate, average Polyethylene glycol having a molecular weight of 400 or less, a fluorine-based surfactant and the like are used.

The medium of the developing solution used for developing the color material-containing photosensitive layer or the laminate of the color material layer and the photosensitive layer after the exposure is an aqueous medium, that is, a medium composed mainly of water, and is alkaline. The substance has been added. If necessary, an organic solvent miscible with water, an organic base and other additives may be added to this developer. Suitable alkaline substances are alkali metal hydroxides (sodium hydroxide, potassium hydroxide), alkali metal carbonates (sodium carbonate,
Potassium carbonate), alkali metal bicarbonates (sodium hydrogen carbonate, potassium hydrogen carbonate), alkali metal silicates (sodium silicate, potassium silicate), alkali metal metasilicates (sodium metasilicate, potassium metasilicate), tri Ethanolamine, diethanolamine,
Monoethanolamine, morpholine, trialkylammonium hydroxide, or trisodium phosphate. Suitable organic solvents include methanol, ethanol, 2-
Propanol, 1-propanol, butanol, diacetone alcohol, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol mono-n-butyl ether, benzyl alcohol, acetone, methyl ethyl ketone, cyclohexanone, ε-caprolactone, γ-butyrolactone, dimethylformamide. , Dimethylacetamide, and hexamethylphosphoramide. A wetting agent may also be added to this developer. As the wetting agent, an alkylnaphthalene sulfonate having a low foaming property is particularly preferable. Particularly preferred developers are aqueous solutions of ethylene glycol mono-n-butyl ether and sodium carbonate, benzyl alcohol, sodium carbonate, sodium hydroxide, and sodium butylnaphthalene sulfonate. The developing solution for the photosensitive resin layer can be used as a bath solution or a spray solution. At this time, rubbing with a brush, rubbing with a wet sponge, rubbing, or any other known method can be advantageously performed.

The thus-produced photosensitive transfer sheet of the present invention can be used for color proofing, for example, by an operation according to the surprint method as described below. 1) Exposure is performed by irradiating an actinic ray on a photosensitive transfer sheet in a state in which a plurality of color separation masks having different images are superposed on each other according to the hue of the photosensitive transfer sheet (hereinafter referred to as “multi-faced attachment”) Perform (exposure step). 2) By treating this transfer sheet with a developing solution, a plurality of decomposed images are formed on the release layer (developing step). 3) By using the photosensitive transfer sheet having another hue, repeating the first and second steps to obtain 2 to 4 single color transfer sheets. 4) A multi-sided transfer sheet having a first color decomposition image is superposed so that the decomposition image side is in contact with the support and the image receiving layer of the image receiving sheet having the photopolymerizable image receiving layer, and then heated and pressed. And bring them into close contact. The decomposed image is thermocompression bonded while embedded in the uncured image receiving layer. Next, the support (temporary support) of the transfer sheet is peeled off and the image is transferred together with the release layer (transfer step). 5) Further, before performing the same operation using the transfer sheet having the remaining monochromatic image, the separated images of the second and subsequent colors are cut with scissors for each separated image.
The cut individual separated images are sequentially transferred onto the same image receiving sheet while aligning with the separated image of the first color. On the image receiving sheet, a multi-sided separated image of 2 to 4 colors is formed in a state of being embedded in the image receiving layer. 6) The image receiving layer of the image receiving sheet on which the multicolor image is transferred,
The multicolor image is superposed on the white paper so as to come into contact with the white paper, and then heated and pressed to be brought into close contact. 7) The entire surface of the image-receiving sheet is irradiated with actinic rays to photo-cur the photopolymerizable image-receiving layer. 8) By peeling the support (temporary support) of the image-receiving sheet, the number of images corresponding to the number of masks of 2 to 4 colors is formed on the white paper. If desired, fine unevenness may be provided on the surface of the image receiving layer by overlaying a matte film or the like on the image receiving layer and applying heat and pressure. In the above, the example of white paper was given as the support to which the decomposed image is finally transferred, but other various papers,
Metal, film, glass and the like can also be used as the support. It is also possible to directly transfer to the final support without using an image receiving sheet. Furthermore, the multicolored color proofing sheet obtained in the third step can be directly and accurately superposed as it is to be used for color proofing according to the overlay method.

The present invention will be described in more detail based on the following examples, but the invention is not intended to be limited thereto. Unless otherwise specified, “part” means “part by weight”.

[0044]

【Example】

<Synthesis Example 1> 163.7 parts of p-aminophenol and 147.7 parts of sodium acetate were dissolved in 700 parts of acetone. Under ice cooling, 148.8 parts of acrylic acid chloride was added dropwise over 2 hours. After stirring at room temperature for 2 hours, the reaction solution was poured into 1500 parts of ice water. The produced solid was filtered off, washed with diluted hydrochloric acid, washed with water, and then dried. By recrystallizing this from ethanol, 64.2 parts of light brown crystals of N- (p-hydroxyphenyl) acrylamide were obtained.

<Synthesis Example 2> N- (m-hydroxyphenyl) acrylamide was obtained in the same manner as in Synthesis Example 1 except that m-aminophenol was used instead of p-aminophenol.

<Synthesis Example 3> 18.5 parts of p-methylaminophenol and 17.2 parts of triethylamine were dissolved in 100 parts of tetrahydrofuran. Under ice cooling, 13.6 parts of acrylic acid chloride / 20 parts of tetrahydrofuran was added dropwise over 2 hours. After stirring at room temperature for 2 hours, the reaction solution was poured into 500 parts of ice water. It was extracted with ethyl acetate and concentrated. The black oily substance obtained was purified by silica gel column chromatography (ethyl acetate / hexane) to obtain 8.5 parts of a light brown solid of N-methyl-N- (p-hydroxyphenyl) acrylamide.

<Synthesis Example 4> The same treatment as in Synthesis Example 3 was repeated except that 18.5 parts of p-methylaminophenol was changed to 20.6 parts of p- (2-aminoethyl) phenol, and N- (2 -(P-Hydroxyphenyl) ethyl) acrylamide was obtained.

<Synthesis Example 5> N-phenylacrylamide was obtained in the same manner as in Synthesis Example 3, except that 18.5 parts of p-methylaminophenol was changed to 14.0 parts of aniline.

<Synthesis Example 6> 16.3 parts of N- (p-hydroxyphenyl) acrylamide was dissolved in 48.9 parts of N, N-dimethylacetamide. To this, 0.02 part of 2,2′-azobis (2,4-dimethylvaleronitrile) was added, and the mixture was heated with stirring at 80 ° C. for 4 hours under a nitrogen stream. Further, 0.14 part of 2,2′-azobis (2,4-dimethylvaleronitrile) was added, and the mixture was heated with stirring at 80 ° C. for 4 hours under a nitrogen stream. The reaction solution was reprecipitated from chloroform / acetone and dried to obtain 16.0 parts of poly (N- (p-hydroxyphenyl) acrylamide) (Resin No. 1).

<Synthesis Examples 7 to 12> Polymers (Resin No. 2) were prepared by polymerizing the monomers shown in Table 1 in the same manner as in Synthesis Example 6.
~ 7) was obtained.

Table 1: Synthesis example of polymer compound ━━━━━━━━━━━━━━━━━━━━━━━━━━━ Resin No. Polymerizable low-molecular compound molar ratio ─ ────────────────────────── 1 N- (p-human oxyphenyl) acrylamide 100 2 N- (m-human oxyphenyl) acrylic amide 100 3 N -Methyl-N- (p-human oxyphenyl) acrylamide 100 4 N- (2- (p-human oxyphenyl) ethyl) acrylic amide 100 5 N- (p-human oxyphenyl) acrylic amide 60 2-human oxyethyl acrylate 40 6 N- ( p-Human oxyphenyl) Acrylamid 50 p-Human oxystyrene 50 7 N-Phenyl acrylate 100 100 ────────────────────────────

Example 1 (A) Production of Photosensitive Transfer Sheet A release layer coating solution was prepared as follows. [Release layer coating liquid] -Alcohol-soluble polyamide CM-8000 [Toray Industries, Inc.] 4.5 parts-Resin No. obtained in Synthesis Example 6 1 4.5 parts-Methanol 400 parts-Propylene glycol monomethyl ether 100 parts Layers were provided. Next, yellow, magenta, cyan, and black four-color photosensitive coating liquids were prepared so as to have the following compositions, respectively, as coating liquids for the color material-containing photosensitive layer.

[Yellow Sensitive Coating Solution] Benzyl methacrylate / methacrylic acid copolymer 60 parts (molar ratio = 73/27: viscosity η: 0.12) ・ Pentaerythritol tetraacrylate 43.2 parts ・ 2,4-bis (Trichloromethyl) -6- [4- (4-hydroxybenzoylamino) phenyl] -S-triazine 1.81 parts Seika Fast Yellow H-7055 9.4 parts (Dainichi Seika Kogyo KK) Methyl cellosolve acetate 560 parts-Methyl ethyl ketone 280 parts-Fluorosurfactant 1 part (Florard FC-430 manufactured by Sumitomo 3M Ltd.)

[Magenta photosensitive coating liquid] benzyl methacrylate / methacrylic acid copolymer 60 parts (molar ratio = 73/27: viscosity η: 0.12) ・ pentaerythritol tetraacrylate 43.2 parts ・ 2,4-bis (Trichloromethyl) -6- [4- (4-hydroxybenzoylamino) phenyl] -S-triazine 1.81 parts Seika Fast Carmine 1483 5.2 parts (Dainichi Seika Chemicals Co., Ltd.) Methyl cellosolve Acetate 560 parts ・ Methyl ethyl ketone 280 parts ・ Fluorosurfactant 1 part (Florard FC-430 manufactured by Sumitomo 3M Ltd.)

[Cyan photosensitive coating solution] benzyl methacrylate / methacrylic acid copolymer 60 parts (molar ratio = 73/27: viscosity η: 0.12) ・ pentaerythritol tetraacrylate 43.2 parts ・ 2,4-bis (Trichloromethyl) -6- [4- (4-hydroxybenzoylamino) phenyl] -S-triazine 1.81 parts-Cyanine blue 4920 5.6 parts (Dainichi Seika Chemicals Co., Ltd.)-Methyl cellosolve acetate 560 parts-Methyl ethyl ketone 280 parts-Fluorine-based surfactant 1 part (Florard FC-430 manufactured by Sumitomo 3M Ltd.)

[Black photosensitive coating solution] Benzyl methacrylate / methacrylic acid copolymer 60 parts (molar ratio = 73/27: viscosity η: 0.12) ・ Pentaerythritol tetraacrylate 43.2 parts ・ 2,4-bis (Trichloromethyl) -6- [4- (4-hydroxybenzoylamino) phenyl] -S-triazine 1.81 parts-Mitsubishi Carbon Black MA-100 6.6 parts (Mitsubishi Chemical Industries, Ltd.)-Methyl Cellosolve acetate 560 parts-Methyl ethyl ketone 280 parts-Fluorosurfactant 1 part (Florard FC-430 manufactured by Sumitomo 3M Ltd.)

Each of these coating solutions was uniformly applied onto each of the four supports provided with the above-mentioned release layer and dried to provide a color material-containing photosensitive layer having a dry film thickness of 2.4 μm. Separately, a coating liquid for forming a protective layer having the following composition was prepared, and the coating liquid was applied on each color material-containing photosensitive layer of each color and dried to form a protective layer having a dry film thickness of 1.5 μm. .

[Protective Layer Coating Liquid] Polyvinyl alcohol 60 parts (GL-05, manufactured by Nippon Synthetic Chemical Industry Co., Ltd.) Water 970 parts Methanol 30 parts In this way, the support, the release layer, and the color A four-color photosensitive transfer sheet A comprising a material-containing photosensitive layer and a protective layer was produced.

(B) Preparation of Transfer Image A photosensitive transfer sheet for each of the four colors is superposed on a corresponding color separation mask, and a 1 kW ultra-high pressure mercury lamp P-607F is used.
After image exposure for 60 seconds by w (manufactured by Dainippon Screen Mfg. Co., Ltd.), it was heated at 31 ° C. with a 5-fold dilution of color art developer CA-1 (trade name: manufactured by Fuji Photo Film Co., Ltd.).
22 seconds for automatic development (Color Art Processor CA-
600P: Fuji Photo Film Co., Ltd. was used). In this manner, a four-color color proofing sheet faithfully reproducing the color separation mask was obtained.

Separately, coating solutions of the following prescription 1 (for forming the first layer) and prescription 2 (for forming the second layer) were prepared on a biaxially stretched polyethylene terephthalate film having a thickness of 100 μm, and the dry film thickness was 1 for each. An image receiving sheet was prepared by sequentially coating and forming so as to have a thickness of 0.0 μm and 20 μm. Prescription 1 • Polyvinyl chloride ZEON 25 [Nippon ZEON Co., Ltd.] 10.0 parts • Methyl ethyl ketone 240 parts • Cyclohexanone 60 parts Prescription 2 • Methyl methacrylate polymer 90 parts [Wako Pure Chemical Industries, Ltd., average molecular weight: 100,000 ] Pentaerythritol tetraacrylate 90 parts Michler's ketone 0.51 part Benzophenone 3.18 parts p-Methoxyphenol 0.09 parts Methyl ethyl ketone 220 parts

Next, a black color proofing sheet is first stacked so that the image surface is in contact with the film surface of the image receiving sheet, and laminated using a color art transfer machine CA-600T (manufactured by Fuji Photo Film Co., Ltd.). Then, the support of the color proofing sheet was peeled off, and the black image was transferred onto the image receiving sheet. Then, the remaining three color proofing sheets were transferred while aligning the positions to obtain an image receiving sheet on which four-color halftone images were transferred and formed.

Next, the image receiving sheet on which the four-color image was transferred and the art paper were superposed and laminated by the above transfer machine, and then the support of the image receiving sheet was peeled off to form a color image on the art paper. Finally, in order to improve the color reproduction by eliminating the curing of the image-receiving sheet and the absorption of the photosensitive material in the visible range, an ultra-high pressure mercury lamp P-607FW (manufactured by Dainippon Screen Mfg. Co., Ltd.)
The whole surface was exposed (post-exposure) for 120 seconds to obtain a final image.

(C) Evaluation Evaluation of the final image formed through these steps was carried out as follows. The results are shown in Table 3.

Solvent resistance polyethylene terephthalate film (thickness: 100 μ
m) as a support, the release layer coating liquid prepared in Examples and Comparative Examples was applied and dried thereon to give a dry film thickness of 1.
A sample provided with a 0 μm release layer was prepared. A drop of methyl ethyl ketone was dropped onto the test sample obtained above using a dropper, and after leaving for 30 seconds, the methyl ethyl ketone was absorbed with paper and the trace state of the release layer surface was observed. Good: No trace was observed. Poor: Traces were seen as contours, but the release layer swelled only. Poor: Traces were found with a contour and part or the entire surface of the peeling layer was dissolved.

-Development liquid resistance A photosensitive transfer sheet was prepared by using the developer CA-1 for color art.
On a support, auto-development (using Color Art Processor CA-600P: Fuji Photo Film Co., Ltd.) for 22 seconds at 31 ° C. was performed with a 5-fold dilution of (trade name: Fuji Photo Film Co., Ltd.). A test sample in which only the release layer was present was prepared. The test sample obtained above was evaluated by the method described below. Good: The release layer surface is in a good state without any change. Poor: A slight amount of peeling occurred at the end portion of the sample, but it was at a level practically acceptable. Poor: Scratch-like marks were generated such that the release layer was rubbed with a brush, or the release layer was completely dissolved.

Color material fog The optical density of stains due to the pigment in each non-image area (the area of only the peeling layer) of each magenta color proofing sheet exposed and developed in the same manner as in Example 1 was measured.

・ Transferability The working environment is 20 ° C 20% RH and 23 ° C 60% RH [S
A Y-type electric ventilation psychrometer (measured by Yoshino Keiki Seisakusho)] was used to prepare a final image in the process of Example 1 described above. The transfer and peeling processes in this case were evaluated by the following evaluations. Good: The transfer sheets of four colors each had good releasability and thermal adhesiveness when transferred onto the image receiving sheet, and the images obtained on the image receiving sheet were also at a good level. Poor: The four-color transfer sheet is slightly inferior to the above, but at a practically acceptable level. Poor: Each of the transfer sheets of four colors had a peeling property, a heat adhesive property, or both at a sufficient level when transferred onto the image receiving sheet.

Flaking A photosensitive transfer sheet is used as a 1 kW ultra-high pressure mercury lamp P-607FW.
After image exposure for 60 seconds with (manufactured by Dainippon Screen Mfg. Co., Ltd.), a 5 times dilution of color art developer CA-1 (trade name: manufactured by Fuji Photo Film Co., Ltd.) was performed at 31 ° C. for 22 seconds. Automatic development (Color Art Processor CA-6
00P: Fuji Photo Film Co., Ltd. is used)
A test sample was prepared. The obtained test sample was cut with scissors, the cut end was observed with a loupe, and the presence or absence of generation of cutting chips was evaluated. Further, the obtained test sample was observed with a magnifying glass using a knuckle, and the presence or absence of film floating and cracking was evaluated. In both evaluations, chips without chips, film floating, and cracks were judged to be good. The above evaluation was carried out in a working environment of 20 ° C. and 20% RH [measured by SY type electric ventilation psychrometer (Yoshino Keiki Seisakusho)].

Examples 2 to 8 and Comparative Examples 1 to 6 Alcohol-soluble polyamide CM in Example 1
-8000 [manufactured by Toray Industries, Inc.] and resin No. 1 obtained in Synthesis Example 6. A photosensitive transfer sheet was produced in the same manner as in Example 1 except that 1 was changed to the resin composition shown in Table 2.
evaluated. The results are shown in Table 3.

Example 9 (Formation of Coloring Material Layer) A mother liquor A for dispersing a coloring material (pigment) was prepared. (Mother liquor A) 20 parts of styrene-maleic anhydride copolymer (trade name: Oxylac SH-101 manufactured by Nippon Shokubai Kagaku Kogyo Co., Ltd.) 80 parts of methyl ethyl ketone

Next, using the above mother liquor A, a four-color coloring material (pigment) dispersion having the following composition was prepared.

(Yellow Coloring Material Dispersion) -Mother liquor A 110 parts-Methyl ethyl ketone 40 parts-Methyl cellosolve acetate 25 parts-Seika Fast Yellow 24.4 parts (trade name: H-0755 Dainippon Seika Co., Ltd.)

(Magenta colorant dispersion liquid) -Mother liquor A 110 parts-Methyl ethyl ketone 40 parts-Methyl cellosolve acetate 25 parts-Seika First Yellow 12.2 parts (trade name: 1483 manufactured by Dainippon Seika Chemicals Co., Ltd.)

(Cyan colorant dispersion liquid) -Mother liquor A 110 parts-Methyl ethyl ketone 40 parts-Methyl cellosolve acetate 25 parts-Cyanine blue 12.2 parts (trade name: 4920 manufactured by Dainippon Seika Chemicals Co., Ltd.)

(Black colorant dispersion) -Mother liquor A 110 parts-Methyl ethyl ketone 40 parts-Methyl cellosolve acetate 25 parts-Mitsubishi carbon black 12.2 parts (trade name: MA-100 manufactured by Mitsubishi Kasei Co., Ltd.)

Each of the above dispersions was prepared by stirring for 3 hours using a test disperser (paint shaker, manufactured by Toyo Seiki Co., Ltd.).

Next, in order to dilute each dispersion described above,
A diluted solution having the following composition was prepared. -Methyl ethyl ketone 550 parts-Methyl cellosolve acetate 130 parts-Fluorosurfactant 2 parts (trade name: Florard FC-430 Sumitomo 3M Limited) Each of the four color dispersion liquids obtained above was diluted with the above dilution liquid. After diluting in the following weight ratio, stirring operation was carried out for 10 minutes, and ultrasonic dispersion operation was carried out for 10 minutes to prepare coating liquids for forming four color material layers. Toyo filter paper No. Example 1 after filtering with a 63 filter
These coating solutions were coated on a release layer provided on each of the four supports obtained in the above step using a wheeler, and 1
It dried at 00 degreeC for 2 minutes, and formed the sheet | seat with each color material layer, respectively.

(Yellow layer) Pigment dispersion / diluting liquid 3.5 / 46.5 Film thickness 1.0 μm Optical density (blue filter) 0.50 (Magenta layer) Pigment dispersion / diluting liquid 4/46 Film thickness 0 0.7 μm optical density (green filter) 0.75 (cyan layer) pigment dispersion / diluting solution 4/46 film thickness 0.8 μm optical density (red filter) 0.65 (black layer) pigment dispersion / diluting solution 5. 5 / 44.5 Thickness 0.7 μm Optical density (no filter) 0.90

On each of the four color material layers, a positive type photosensitive liquid having the following composition was used. After filtering with a filter of No. 63, it was applied with a wheel and dried at 100 ° C. for 2 minutes to form a photosensitive resin layer (image forming layer) having a film thickness of 1 μm. (Positive-type photosensitive liquid) 1,2-naphthoquinone- (2) -diazide-5-1.36 parts Cumyl phenol ester sulfonate-Novolak type phenol-formaldehyde resin 2.86 parts (Brand name: PR-50716 Sumitomo Durres)・ Adipic acid 0.32 parts ・ Fluorosurfactant 0.05 parts (Brand name: Megafac F-104 Dainippon Ink and Chemicals, Inc.) ・ n-propyl acetate 84 parts ・ Cyclohexanone 42 copies

As described above, a photosensitive transfer sheet B comprising a support, a release layer, a color material layer and a photosensitive resin layer was manufactured in this order. This was evaluated in the same manner as in Example 1. As a result, there was no flaking, and excellent images could be obtained with excellent releasability.

Table 2: Polymer compounds used (parts by weight) ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ -Resin Examples Comparative Example ────────────────── ────────────── 2 3 4 5 6 7 8 1 2 3 4 5 6 ──────────────────────────────────── CM-8000 5.4 3.6 4.5 4.5 4.5 4.5 4.5 9.0 6.3 4.5 2.7 4.5 Resin No1 3.6 5.4 No2 4.5 No3 4.5 No4 4.5 No5 4.5 No6 4.5 No7 4.5 Polyethylene 2.7 4.5 6.3 9.0 Xylstyrene ━━━━━━━━━━━━━━━━━━━━━━━━━━━ ━━━━━━━━━━

Table 3: Evaluation of photosensitive transfer sheet ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ No. Solvent resistance, developer resistance, color material transfer, transferability, flaking, low humidity, high humidity ──────────────────────────────── Example 1 Good Good 0.01 Good Good Good Good Example 2 Good Good 0.01 Good Good Good Good Example 3 Good Good 0.01 Good Good Good Example 4 Good Good 0.02 Good Good Good Example 5 Good Good 0. 01 Good Good Good Good Example 6 Good Good 0.01 Good Good Good Good Example 7 Good Good 0.01 Good Good Good Good Example 8 Good Good 0.01 Good Good Good ───────────── ─────────────────── Comparative Example 1 Yes Poor No Evaluation ^{* 1} Yes Poor Good Comparative Example 2 Yes Good 0.01 Good Good Bad Poor Comparative Example 3 Good Good 0.02 good good poor comparative example 4 poor Allowed evaluation disabled ^{* 1} failure not For bad Comparative Example 5 phase mixture, not be evaluated Comparative Example 6 FAILURE evaluation Call ^{* 1} Good Good bad ━━━━━━━━━━━━━━━━━━━━━━━━━━ ━━━━━━ * 1: Due to lack of developer resistance, surface condition is poor and accurate measurement is impossible.

[0083]

The photosensitive material of the present invention has good transferability under both low and high humidity conditions, and has no problems such as developer resistance, color material fog and flaking. Therefore, low humidity ~
It is possible to obtain a final image with excellent image quality under any of the high humidity conditions. Therefore, it is useful as a color proof for color proofing or a display.

Claims (3)

[Claims] 1. A photosensitive transfer comprising, on a support, at least (1) a release layer containing an organic polymer and (2) a photosensitive layer containing a coloring material or a laminate of a coloring material layer and a photosensitive layer in this order. A photosensitive transfer sheet, wherein the release layer contains at least one polymer having a repeating unit represented by the following general formula (I). [Chemical 1] [Wherein R ¹ is a hydrogen atom or a methyl group: A is an aryl group having 6 to 10 carbon atoms (the aryl group is 1 carbon atom).
~ 6 alkyl groups, C6-10 aryl groups,
An alkoxy group having 1 to 6 carbon atoms, halogen, ^{cyano, COOH, COOR 2, COR 3} , CONR 4 R 5, one or more of nitro groups, and may be substituted with a combination of two or more of these ): X is COO, CONR ⁶ ,
COO-R ⁷ - or ^{CONR 2 -R 7 -: R 2} , R 3,
R ⁴ , R ⁵ and R ⁶ are a hydrogen atom, an alkyl group having 1 to 6 carbon atoms or an aryl group having 6 to 10 carbon atoms, (wherein the alkyl group and / or the aryl group is a hydroxy group, a carbon number of 1 to 1). 1 of 6 alkoxy group, halogen, and cyano group
One or more, and optionally substituted with a combination of two or more thereof): R ⁷ is alkylene or aralkylene having 1 to 10 carbon atoms (the alkylene and / or aralkylene may be branched, and Ether bond,
OCO, COO, or a combination of two or more thereof may be included): n is an integer of 1 to 3; ] 2. The photosensitive transfer sheet according to claim 1, wherein the release layer further contains at least one alcohol-soluble polyamide. 3. The polymer according to claim 1, wherein the polymer having the repeating unit represented by the general formula (I) contains 10 mol% or more of the repeating unit represented by the general formula (I). Photosensitive transfer sheet.