JP2003307848A - Photosensitive resin composition and photosensitive transfer sheet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a photosensitive resin composition having a smooth surface and excellent adhesiveness to a substrate when transferred to the substrate and leaving little residue on development. <P>SOLUTION: The photosensitive resin composition contains a fluoropolymer, wherein the fluoropolymer is a copolymer of (i) an acrylate or (meth)acrylate having a specified fluoroaliphatic group, (ii) an oxyalkylene(meth)acrylate represented by formula (1) and (iii) a monomer having a carboxyl group or a sulfonic acid group in its molecule. Units of the acrylate or methacrylate (i) are contained in the copolymer by 40 to 70 mass%, the monomer (iii) is contained by 1 to 20 mass% and the weight average molecular weight of the fluoropolymer is ≥20,000. A photosensitive transfer sheet having a layer formed of the photosensitive resin composition is also provided. <P>COPYRIGHT: (C)2004,JPO

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 can be advantageously used for image formation by transfer, and a photosensitive resin composition which can be used for producing the same, and more particularly to a color liquid crystal display or the like. The present invention relates to a photosensitive transfer sheet that can be suitably used for producing a color filter used for production, and a photosensitive resin composition that can be used for producing the same.

[0002]

2. Description of the Related Art A photosensitive transfer sheet (photosensitive transfer material) for transferring a photosensitive resin layer onto a substrate is printed wiring,
It is used for intaglio letterpress printing, name plates, multicolor test printing samples, offset printing plates, and color filter production. The photosensitive transfer sheet usually comprises a support, an intermediate layer (separation layer) or an intermediate layer and an alkali-soluble thermoplastic resin layer and a photosensitive resin layer. When an image is formed on the substrate, a separately prepared substrate and photosensitive layer are used. This is performed by superimposing the photosensitive resin layers on the transfer sheet, peeling off only the (temporary) support, and exposing and developing the photosensitive resin layer imagewise through the intermediate layer. The intermediate layer is a layer having a function of blocking oxygen, and polymerization of the photosensitive resin layer by exposure can be promoted even in the air without inhibiting polymerization of oxygen. Since the film thickness is thin (about 0.5 to 5 μm), the resolution is not adversely affected. The alkali-soluble thermoplastic resin layer can absorb the unevenness of the base (that is, the unevenness due to the pixels already formed). These layers are
Since it is soluble in alkali, it can be removed during development.

For example, color filters used in color liquid crystal displays are generally R, G, B (red,
It has a basic structure in which each pixel of green and blue and a black matrix (K) is formed in the gap between them for the purpose of improving display contrast. These R, G, of the color filter
The surfaces of B, each pixel, and K are required to have high smoothness.
That is, when the photosensitive resin layer is transferred onto the surface of the color filter substrate by using the above transfer material to form an image (pixel), the smoothness of the photosensitive resin layer is not good (that is, the unevenness of the film thickness). If there is any), color unevenness of pixels occurs. When a color liquid crystal display is manufactured using a color filter having such color unevenness, the image obtained on the color liquid crystal display also has color unevenness. The above-mentioned photosensitive resin layer is usually formed by coating, but in order to prevent the above-mentioned color unevenness from occurring, it is necessary to perform coating so as not to cause coating unevenness and cissing during coating.

Japanese Patent Publication No. 8-3630 proposes to add a fluorosurfactant to a coating solution when the photosensitive resin layer is formed by coating. As a fluorine-based surfactant, it has 3 to 20 carbon atoms and 40
Contains at least 3% by mass of fluorine atoms and has at least 3 at the terminal
A copolymer of poly (oxyalkylene) acrylate or poly (oxyalkylene) methacrylate with an acrylate or methacrylate having a fluoroaliphatic group in which hydrogen atoms bonded to carbon atoms are fluorine-substituted; A polymer containing the acrylate or methacrylate unit contained in the copolymer in the range of 40 to 70% by mass is used. As the fluorine-based surfactant used in a number of examples, oxyalkylene of poly (oxyalkylene) (meth) acrylate, oxyethylene, oxytriethylene, or oxytetramethylene is used. The average molecular weight is mainly about 15,000.

However, the above-mentioned fluorine-containing surfactant used in the example of Japanese Patent Publication No. 8-3630 can smooth the surface of the photosensitive resin layer, but when it is transferred to a glass substrate, Adhesion with is not sufficient.

[0006]

As a solution to the above-mentioned problems, in JP-A-10-142779, the fluorine-based polymer is (i) an acrylate or methacrylate in which a fluoroaliphatic group is chemically bonded, and (ii) It contains polyoxypropylene (meth) acrylate represented by a specific general formula in a certain range and has a weight average molecular weight of 2
A photosensitive resin composition characterized by containing 10,000 or more fluorine-based polymers has been proposed. However, in the above-mentioned invention, since the solubility of the fluoropolymer in an alkali developing solution is not sufficient, a development residue of the fluoropolymer is generated on the glass substrate, and as a result, a pixel is formed on the residue in the next step. At this time, white spots, protrusions, etc. were generated, causing defects such as bright spots and liquid crystal alignment disorder.

The present invention is described in the above-mentioned Japanese Patent Application Laid-Open No. 10-142779.
A photosensitive resin composition which solves the problems of the described invention, has a smooth surface, and is excellent in adhesiveness to a substrate when transferred to a substrate, and has a small development residue, a photosensitive colored resin layer, and To provide a photosensitive transfer sheet.

[0008]

The above-mentioned problems can be solved by the following inventions. That is, the present invention provides a photosensitive resin composition containing <1> an alkali-soluble binder, an ethylenically unsaturated double bond-containing monomer that can be addition-polymerized by irradiation of light, a photopolymerization initiator, a colorant, and a fluoropolymer. Wherein the fluorine-based polymer is (i) hydrogen having 3 to 20 carbon atoms, containing 40 mass% or more of fluorine atoms, and bonded to at least 3 carbon atoms counted from the non-bonding side end. An acrylate or methacrylate having a fluoroaliphatic group whose atoms are fluorine-substituted, (ii) a compound represented by the following general formula (1), and (iii) a monomer having a carboxyl group or a sulfonic acid group in the molecule Is a copolymer, and further (i)
Acrylate or methacrylate unit having a fluoroaliphatic group of 40 to 70% by mass in the copolymer,
A photosensitive resin composition comprising the monomer (iii) in a range of 1 to 20% by mass and having a weight average molecular weight of 20,000 or more.

[0009]

[Chemical 2] General formula (1) (wherein R ¹ and R ² represent a hydrogen atom or a methyl group, and n
Represents an integer of 6 to 20)

<2> A photosensitive transfer sheet in which an alkali-soluble thermoplastic resin layer, an oxygen barrier layer, and a photosensitive coloring resin layer are provided in this order on a support, and the photosensitive coloring resin layer comprises A photosensitive transfer sheet which is a layer formed from the photosensitive resin composition according to <1>.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION <Photosensitive colored resin layer> The photosensitive resin layer of the present invention comprises a specific fluorine-based polymer, an alkali-soluble binder, and an ethylenically unsaturated double bond which can be addition-polymerized by irradiation with light. It is a layer formed from a photosensitive resin composition comprising a contained monomer, a photopolymerization initiator and a colorant. The present invention, the fluorine-based polymer,
(i) The number of carbon atoms is 3 to 20, and the fluorine atom is 40% by mass.
An acrylate or a methacrylate having a fluoroaliphatic group containing the above and having a hydrogen atom bonded to at least 3 carbon atoms counting from the non-bonding side terminal, which is fluorine-substituted, (ii) represented by the following general formula (1): And the compound (i
ii) a copolymer with a monomer having a carboxyl group or a sulfonic acid group in the molecule, and further comprising (i) an acrylate or methacrylate unit having a fluoroaliphatic group of 40 to 70% by mass in the copolymer. In the range, it is a fluoropolymer containing the monomer (iii) in the range of 1 to 20% by mass and having a weight average molecular weight of 20,000 or more. Hereinafter, the photosensitive resin composition of the present invention will be described in detail.

[0012]

[Chemical 3] General formula (1)

[0013] (fluoropolymer) acrylate or methacrylate having a fluoroaliphatic group in (i) above, as a general _{formula, C n F 2n + 1 -L-} (CH 2) m -OCO-CHR 1 = CH 2 Can be expressed as In the above formula, the fluoroaliphatic group represented by C _n F _{2n + 1-} is generally a monovalent aliphatic group,
Even if it is a straight chain or a branched chain, it may contain a ring when the carbon number is large. In the middle of the carbon chain containing the fluoroaliphatic group, a linking group represented by -L- can be contained, and an oxygen atom, a nitrogen atom, a sulfur atom or a combination thereof is preferable, and among them, -SO ₂ N- is particularly preferable. preferable. The number n of carbon atoms in the fluoroaliphatic group is in the range of 3 to 20, and the range of 6 to 12 is more preferable. The group in which a hydrogen atom bonded to at least 3 carbon atoms at the terminal of the fluoroaliphatic group is fluorine-substituted can be represented by C _n F _{2n + 1} (n is an integer of 3 or more). ₃ CF ₂ CF ₂ — can be mentioned. That is, the hydrogen atoms bonded to at least three terminal carbon atoms are all fluorine-substituted. In the above formula, m represents an integer of 0 to 4 and R ¹ represents hydrogen or a methyl group.

Specific examples of the carbon skeleton of the aliphatic group include n-hexyl, iso-hexyl, n-peptyl, iso-peptyl, n-octyl, iso-octyl, 2-ethylhexyl, n-nonyl and iso-. Mention may be made of nonyl, n-decyl, iso-decyl, n-undecyl, iso-undecyl, cyclohexyl, methylcyclohexyl, with n-hexyl, n-peptyl, n-octyl and 2-ethylhexyl being particularly preferred. In the fluoroaliphatic group, the content of fluorine atoms is 40% by mass or more,
Is preferably 70 to 70% by mass, and particularly preferably 40 to 60% by mass.

In the polyoxyalkylene (meth) acrylate represented by the general formula (1) in (ii) above, R ¹ and R ² represent a hydrogen atom or a methyl group, and among oxyalkylene, oxypropylene and oxyethylene are particularly preferable. There is a feature in that. n is an integer of 6 to 20, preferably 6 to
It is an integer of 15.

The monomer (iii) is a monomer having a carboxyl group or a sulfonic acid group in the molecule, and specific examples thereof include methacrylic acid, acrylic acid, itaconic acid, crotonic acid, maleic acid, partially esterified maleic acid and styrene. Examples thereof include sulfonic acid, and among them, methacrylic acid, acrylic acid, itaconic acid, maleic acid, and styrenesulfonic acid are particularly preferable.

The fluoropolymer of the present invention has the above-mentioned (i),
A copolymer with the monomers (ii) and (iii), further comprising the monomer unit (i) in an amount of 40 to 7 per 100 mass% of the copolymer.
0 mass%, the monomer of (iii) is contained in the range of 1 to 20 mass%, and the weight average molecular weight is 20,000 or more (preferably 20,000 to
100,000). In particular, it is preferable to contain the monomer (i) in the range of 20 to 50 mass% and the monomer unit (iii) in the range of 2 to 15 mass%. When the above-mentioned fluoropolymer is polymerized, another monomer may be added as a copolymerization component in an amount of 20% by mass or less of the fluoropolymer and polymerized.

Particularly in the present invention, when the fluorine-containing polymer contains 1 to 20% by mass of a monomer having a carboxyl group or a sulfonic acid in the molecule, the solubility of the fluorine-containing polymer in an alkaline developing solution is improved. Therefore, it is possible to form a photosensitive transfer material having a smooth surface and excellent adhesiveness without developing residue of the photosensitive resin layer.

The fluorine-containing polymer of the present invention is preferably contained in the photosensitive colored resin in the range of 0.01 to 5% by mass (based on the total solid content), particularly 0.1 to 2% by mass. It is preferably contained in the range of%. The content is the same in the photosensitive composition. When the content is in the range of 0.01 to 5% by mass, the effect as a surfactant is sufficiently exhibited, and the drying of the coating film is not hindered and the developability is not deteriorated.

(Alkali-Soluble Binder) As the alkali-soluble binder, a polymer having a carboxylic acid group in its side chain, for example, JP-A-59-44615, JP-B-54-34327, and JP-B-58-12577.
JP-B, JP-B-54-25957, JP-A-59-
53836 and JP-A-59-71048, a methacrylic acid copolymer, an acrylic acid copolymer, an itaconic acid copolymer, a crotonic acid copolymer, a maleic acid copolymer, Partially esterified maleic acid copolymers and the like can be mentioned. Moreover, the cellulose derivative which has a carboxylic acid group in a side chain can also be mentioned. In addition, a polymer having a hydroxyl group and a cyclic acid anhydride added thereto can be preferably used. Particularly, benzyl (meth) described in US Pat. No. 4,139,391.
Examples thereof include a copolymer of acrylate and (meth) acrylic acid and a multi-component copolymer of benzyl (meth) acrylate, (meth) acrylic acid and other monomers.

The alkali-soluble binder is 30-40
Acid value in the range of 0 mg KOH / g and 1000 to 30000
Those having a weight average molecular weight in the range of 0 are selected and used. In addition to the above, in order to improve various performances, for example, the strength of the cured film, an alkali-insoluble polymer can be added within a range that does not adversely affect the developability and the like. Examples of these polymers include alcohol-soluble nylon and epoxy resins. The content of the binder with respect to the total solid content of the photosensitive resin composition,
The amount is 10 to 95% by mass, and more preferably 20 to 90% by mass. If it is less than 10% by mass, the tackiness of the photosensitive colored resin layer will be too high, and if it exceeds 95% by mass, the strength and photosensitivity of the layer formed will be poor.

(Photopolymerization Initiator) Examples of the photopolymerization initiator include vicinal polyketaldonyl compounds disclosed in US Pat. No. 2,367,660 and US Pat. No. 244.
Acyloin ether compounds described in US Pat. No. 8,828, α described in US Pat. No. 2,722,512.
-Hydrocarbon-substituted aromatic acyloin compounds, U.S. Pat. Nos. 3,046,127 and 2,951,758.
Quinone compounds described in US Pat. No. 354
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.
The trihalomethyl-s-triazine compound described in No. 50 specification, the trihalomethyl oxadiazole compound described in US Patent No. 4212976, etc. can be mentioned. In particular, trihalomethyl-s-
Triazine, trihalomethyloxadiazole and triarylimidazole dimers are preferred. The content of the photopolymerization initiator relative to the total solid content of the photosensitive resin composition is 0.
5-20 mass% is general, and 1-15 mass% is preferable. If it is less than 0.5% by mass, the photosensitivity and the image strength are low,
Even if added in an amount of more than 20% by mass, no effect on performance improvement is recognized.

(Ethylene Unsaturated Double Bond-Containing Monomer) The ethylenically unsaturated double bond-containing monomer which can be addition-polymerized by irradiation with light is at least one addition-polymerizable ethylenic monomer in the molecule. A compound having an unsaturated group and having a boiling point of 100 ° C. or higher at normal pressure can be mentioned. 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, trimethylol Ethane triacrylate, trimethylol propane triacrylate, trimethylol propane 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 (acryloyloxyethyl) isocyanurate,
Tri (acryloyloxyethyl) cyanurate, glycerin tri (meth) acrylate; Polyfunctional acrylates and polyfunctional methacrylates such as propylene oxide added to ethylene oxide and poly (meth) acrylate of polyfunctional alcohols such as trimethylolpropane and glycerin. Can be mentioned.

Further, Japanese Patent Publication No. 48-41708, Japanese Patent Publication No. 50-6034 and Japanese Patent Publication No. 51-37193.
Polyurethane acrylates described in JP-A-48-64183, JP-B-49-43191 and JP-B-52-30490; epoxy resins and (meth) Examples thereof include polyfunctional acrylates and methacrylates such as epoxy acrylates, which are reaction products of acrylic acid. Of these, trimethylolpropane tri (meth) acrylate, pentaerythritol tetra (meth) acrylate, dipentaerythritol hexa (meth) acrylate and dipentaerythritol penta (meth) acrylate are preferable. The monomers having an ethylenically unsaturated double bond which undergo addition polymerization upon irradiation with light may be used alone or in combination of two or more, and the content of the light-shielding photosensitive resin composition based on the total solid content is 5 to 50 mass% is general, and 10 to 40 mass% is preferable. If it is less than 5% by mass, the photosensitivity and the image strength will decrease,
When it exceeds 50% by mass, the tackiness of the photosensitive resin layer becomes excessive, which is not preferable.

The above colorants include red, green, blue,
Known pigments and dyes of yellow, purple, magenta, cyan and black can be used. Preferred examples of these include Victoria Pure Blue BO (C.
I. 42595), auramine (C.I. 4100)
0), Fat Black HB (C.I.2615)
0), Monolite Yellow GT (CI Pigment Yellow 12), Permanent Yellow GR (CI Pigment Yellow 17), Permanent Yellow HR
(CI Pigment Yellow 83), Permanent
Carmine FBB (C.I. Pigment Red 14
6), Hoster Balm Red ESB (CI Pigment Violet 19), Permanent Ruby FBH
(CI Pigment Red 11), Fastel Pink B Spraw (CI Pigment Red 81), Monastral First Blue (CI Pigment Blue 15), Monolight First Black B
(CI pigment black 1) and carbon black.

Further, as a pigment particularly suitable for preparing a color filter, C.I. I. Pigment Red 97, C.I.
I. Pigment Red 122, C.I. I. Pigment
Red 149, C.I. I. Pigment Red 168,
C. I. Pigment Red 177, C.I. I. Pigment Red 180, C.I. I. Pigment Red 19
2, C.I. I. Pigment Red 215, C.I. I. Pigment Green 7, C.I. I. Pigment Green 3
6, C.I. I. Pigment Blue 15: 1, C.I. I. Pigment Blue 15: 4, C.I. I. Pigment Blue 15: 6, C.I. I. Pigment Blue 22, C.I.
I. Pigment Blue 60, C.I. I. Pigment Blue 64, C.I. I. Pigment Yellow 139, C.I.
I. Pigment Yellow 83, C.I. I. Pigment Violet 23 and the like. The above pigments and dyes generally have an average particle size of 5 μm or less,
μm or less is preferable. When making a color filter, it is preferable to use one having an average particle diameter of 0.5 μm or less.

The photosensitive resin composition of the present invention preferably further contains a thermal polymerization inhibitor in addition to the above components. Examples of thermal polymerization inhibitors 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.

Further, known additives such as a plasticizer, a surfactant and a solvent can be added to the composition of the present invention as required. The layer thickness of the photosensitive colored resin layer formed from the photosensitive resin composition is preferably 0.5 to 10 μm, and particularly preferably 1 to 5 μm.

The photosensitive resin composition of the present invention can be obtained, for example, by dispersing a mixture of a coloring material and a binder and then mixing other materials.

<Photosensitive Transfer Sheet> The photosensitive transfer sheet of the present invention will be described below, but such a photosensitive transfer sheet can be advantageously used for forming images such as color filters. The photosensitive transfer sheet is usually formed by stacking an alkali-soluble thermoplastic resin layer, an oxygen barrier layer, and a photosensitive coloring resin layer in this order on a (temporary) support. The photosensitive colored resin layer of the present invention contains the above-mentioned specific fluoropolymer. In addition, the photosensitive colored resin layer further contains an alkali-soluble binder, an ethylenically unsaturated double bond-containing monomer that can be addition-polymerized by irradiation of light, and a photopolymerization initiator. The oxygen blocking layer is a layer having a function of blocking oxygen, and polymerization of the photosensitive resin layer by exposure can proceed without being affected by polymerization inhibition of oxygen even in the air. Since the film thickness is thin (about 0.5 to 5 μm), the resolution is not adversely affected.
Further, the alkali-soluble thermoplastic resin layer can absorb the unevenness of the base (that is, the unevenness due to the already formed pixels). Since these layers are soluble in alkali, they can be removed during development.

(Support) The support of the above-mentioned photosensitive transfer sheet is a flexible substance which has good peelability from the alkali-soluble thermoplastic resin layer, is chemically and thermally stable, and is flexible. It is preferably configured. Specifically, a thin sheet of Teflon (R), polyethylene terephthalate, polycarbonate, polyethylene, polypropylene or the like, or a laminate thereof is preferable. In order to obtain good releasability, it is general that no surface treatment such as glow discharge is performed, and no undercoat such as gelatin is provided. The thickness of the support is appropriately 5 to 30 μm, and particularly preferably 20 to 150 μm.

(Alkali-soluble thermoplastic resin layer) The alkali-soluble thermoplastic resin layer has a cushioning property so that it can absorb the unevenness of the base (that is, the unevenness due to the pixels already formed). It must be alkali-soluble so that it can be removed with an alkali developer. Examples of the resin contained in the alkali-soluble thermoplastic resin layer include saponified products of ethylene and an acrylic acid ester copolymer, saponified products of styrene and a (meth) acrylic acid ester copolymer, and vinyltoluene and a (meth) acrylic acid ester copolymer. Saponified polymer, poly (meth) acrylic acid ester, and (meth) butyl (meth) acrylate and vinyl acetate
It is preferable to select and use at least one saponified product such as an acrylate copolymer, and further, "Plastic Performance Handbook" (edited by Japan Plastics Industry Federation, All Japan Plastic Molding Industry Federation, published by Industrial Research Society, 1968). Of the organic polymers issued on October 25, 2013, those soluble in an aqueous alkaline solution can be used. Among these thermoplastic resins, the softening point is 80
It is preferably below ℃.

In order to adjust the adhesive force with the (temporary) support in these organic polymer substances, various plasticizers, various polymers and supercooling substances, adhesion improvers or surfactants, release agents, etc. Can be added. Thereby, the Tg can be adjusted. Specific examples of preferable plasticizers include:
Polypropylene glycol, polyethylene glycol,
Dioctyl phthalate, diheptyl phthalate, dibutyl phthalate, tricresyl phosphate, cresyl diphenyl phosphate, biphenyl diphenyl phosphate, polyethylene glycol mono (meth) acrylate, polyethylene glycol di (meth) acrylate, polypropylene glycol mono (meth) acrylate , Polypropylene glycol di (meth) acrylate, addition reaction product of epoxy resin with polyethylene glycol mono (meth) acrylate, addition reaction product of organic diisocyanate with polyethylene glycol mono (meth) acrylate, organic diisocyanate with polypropylene glycol mono ( Addition reaction product with (meth) acrylate, bisphenol A and polyethylene glycol mono (meth) a It can be mentioned condensation reaction product of relations. The amount of the plasticizer in the alkali-soluble thermoplastic resin layer layer is generally 200% by mass or less, and preferably 20 to 100% by mass based on the thermoplastic resin.
The thickness of the alkali-soluble thermoplastic resin layer is preferably 6 μm or more. 1 when the thickness of the thermoplastic resin layer is less than 6 μm
It becomes difficult to completely absorb the unevenness of the base having a thickness of μm or more. In addition, the upper limit is about 10 due to developability and suitability for production.
It is generally 0 μm or less, preferably about 50 μm or less.
Further, the fluoropolymer of the present invention may be contained in the alkali-soluble thermoplastic resin layer for the purpose of imparting coatability and smoothness.

(Oxygen Blocking Layer) The oxygen blocking layer is formed by exposing the photosensitive resin layer so that the polymerization can proceed without inhibiting the polymerization of oxygen even in the air. As a material for forming the oxygen barrier layer, any material that disperses or dissolves in water or an aqueous alkali solution and exhibits low oxygen permeability,
Known ones can be used. For example, JP-A-46-212
No. 1 and Japanese Patent Publication No. 56-40824, polyvinyl ether / maleic anhydride polymers, water-soluble salts of carboxyalkyl cellulose, water-soluble cellulose ethers, water-soluble salts of carboxyalkyl starch, polyvinyl alcohol, polyvinylpyrrolidone. , Various polyacrylamides, various water-soluble polyamides, water-soluble salts of polyacrylic acid, gelatin, ethylene oxide polymers, various water-soluble salts of starch and its analogs, styrene / maleic acid copolymer Mention may be made of maleate resins, and combinations of two or more of these. In particular, a combination of polyvinyl alcohol and polyvinylpyrrolidone is preferable. The polyvinyl alcohol preferably has a saponification rate of 80% or more, and the content of polyvinylpyrrolidone is 1 to 75% by mass of the solid in the intermediate layer.
Is generally preferable, 1 to 60% by mass is preferable, and particularly 1
It is 0 to 50 mass%. If it is less than 1% by mass, sufficient adhesiveness to the photosensitive resin layer cannot be obtained, and if it exceeds 75% by mass, the oxygen blocking ability is lowered. The oxygen barrier layer has a very small thickness, preferably about 0.1 to 5 μm, and particularly preferably 0.5 to 2 μm. If it is less than about 0.1 μm, the oxygen permeability is too high,
If it exceeds μm, it takes too much time during development or removal of the oxygen barrier layer. The photosensitive colored resin layer of the present invention is formed on this oxygen barrier layer.

(Preparation of Photosensitive Transfer Sheet) In the photosensitive transfer sheet of the present invention, for example, a coating solution for forming an alkali-soluble thermoplastic resin layer is applied on a support and dried to form an alkali-soluble thermoplastic resin layer. The coating liquid for forming an oxygen barrier layer which does not dissolve the alkali-soluble thermoplastic resin layer is applied thereon and dried, and then the coating liquid for forming a photosensitive colored resin layer which does not dissolve the oxygen barrier layer is applied and dried. It can be obtained by providing a photosensitive colored resin layer. Alternatively,
By forming a photosensitive colored resin layer on the coating sheet described below, and by laminating it on a sheet on which the alkali-soluble thermoplastic resin layer and the oxygen barrier layer are formed on the support as described above. Alternatively, it may be prepared by forming an alkali-soluble thermoplastic resin layer on a support and laminating a sheet on which a photosensitive colored resin layer and an oxygen barrier layer are formed on a covering sheet. good.

The photosensitive colored resin layer of the present invention is prepared by coating a coating solution of the above-mentioned photosensitive resin composition (usually dissolving the composition in an organic solvent) on the oxygen barrier layer (or on the cover sheet) by a known method. Can be provided. For example, it can be formed by applying a coating solution of the above composition using a coating machine such as a spinner, a whiler, a roller coater, a curtain coater, a knife coater, a wire bar coater, and an extruder, and drying. Examples of the solvent used for preparing the coating solution of the photosensitive resin composition include methyl ethyl ketone, propylene glycol monomethyl ether, propylene glycol monomethyl ether acetate, cyclohexanone, cyclohexanol, ethyl lactate, methyl lactate, caprolactam and the like.

A thin cover sheet is preferably provided on the photosensitive colored resin layer in order to protect it from contamination and damage during storage. The covering sheet may be made of the same or similar material as the (temporary) support, but it is required that it can be easily separated from the photosensitive colored resin layer. Examples of the preferable covering sheet include silicone paper, polyolefin sheet, and polytetrafluoroethylene sheet. The thickness of the covering sheet is generally 5 to 100 μm, 10 to 30 μm
Is preferred.

When the photosensitive colored resin layer of the photosensitive transfer sheet is attached to a permanent support such as a glass substrate and the (temporary) support is peeled off, the charged support (film) and the human body are uncomfortable with electricity. There is a problem that it may be shocked or dust may adhere to the charged support. For this reason, it is preferable to provide a conductive layer on the support or perform a treatment for imparting conductivity to the support itself. Further, when the conductive layer is provided on the side opposite to the support (the side having no photosensitive colored resin layer), it is preferable to provide the hydrophobic polymer layer in order to improve scratch resistance.

To produce a multicolor image sheet such as a color filter using the above-mentioned photosensitive transfer sheet, a photosensitive red resin layer is formed by using a photosensitive transfer sheet (transfer sheet) having a photosensitive red resin layer for red pixels. This is carried out by transferring to the surface of the substrate, exposing imagewise and developing to form red pixels, and similarly forming green and blue pixels.
Alternatively, the photosensitive resin layer of each pixel may be formed by applying a photosensitive resin coating liquid for pixel formation and drying without using a transfer sheet. When arranging the three kinds of pixels of red, green and blue, any arrangement such as a mosaic type, a triangle type and a four pixel arrangement type may be used.

The photosensitive black resin layer having a photosensitive black resin layer is used to transfer the photosensitive black resin layer onto the upper surface of each pixel of the above-mentioned pixel sheet and the gap area between the pixels, and back exposure (pixel exposure). (From the side that does not have a) to develop a black matrix. The uncured portion is cured by heating the image sheet (performed for each pixel).

Generally, the above-mentioned photosensitive transfer sheet is attached to the surface of the substrate by removing the coating sheet on the photosensitive colored resin layer of the photosensitive transfer sheet, superposing the photosensitive transfer sheet on the surface of the substrate, and applying pressure and heat. To be done. For pasting,
Known laminators such as a laminator, a vacuum laminator, and an auto-cut laminator capable of increasing productivity can be used. Then (tentative)
After peeling off the support, the photosensitive colored resin layer is exposed through a predetermined mask, alkali-soluble thermoplastic resin and oxygen barrier layer, and then the unexposed area is removed (development). The light source used for the exposure is selected according to the photosensitivity of the photosensitive colored resin layer. For example, a known light source such as an ultra-high pressure mercury lamp, a xenon lamp, a carbon arc lamp, an argon laser can be used. As described in JP-A-6-59119, an optical filter having a light transmittance of 2% or less at a wavelength of 400 nm or more may be used together.

Although a dilute aqueous solution of an alkaline substance is used as the developing solution for the above-mentioned photosensitive colored resin layer, a solution containing a small amount of an organic solvent miscible with water may be used. Suitable alkaline substances include alkali metal hydroxides (eg, sodium hydroxide, potassium hydroxide), alkali metal carbonates (eg, sodium carbonate, potassium carbonate), alkali metal bicarbonates (eg, sodium hydrogen carbonate). , Potassium hydrogen carbonate), alkali metal silicates (eg, sodium silicate, potassium silicate), alkali metal metasilicates (eg, sodium metasilicate,
Mention may be made of potassium metasilicate), triethanolamine, diethanolamine, monoethanolamine, morpholine, tetraalkylammonium hydroxides (eg tetramethylammonium hydroxide) or trisodium phosphate. Among them, sodium carbonate and triethanolamine can be preferably used for the development of the photosensitive colored resin layer using the fluoropolymer of the present invention. The concentration of the alkaline substance is 0.01% by mass to 30% by mass, and 0.3 to 5% by mass is particularly preferable for developing the photosensitive colored resin layer of the present invention. pH is 8 ~
14 is preferred.

Suitable organic solvents which are miscible with water include methanol, ethanol, 2-propanol and 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, hexamethylphosphoramide,
Mention may be made of ethyl lactate, methyl lactate, ε-caprolactam and N-methylpyrrolidone. Among them, methanol, ethanol and 2-propanol can be preferably used for the development of the photosensitive colored resin layer of the present invention.
The concentration of the organic solvent miscible with water is generally 0.1 to 30% by mass, and 0.1 to 10% by mass is particularly preferable for developing the photosensitive colored resin layer of the present invention.

In the development of the photosensitive colored resin layer of the present invention, the developing solution can be used as a bath solution or a spray solution. To remove the uncured portion of the photosensitive colored resin layer, use a method such as rubbing with a rotating brush in a developing solution or rubbing with a wet sponge, or a method that uses the spray pressure when spraying the developing solution. You can The temperature of the developer is usually preferably in the range of around room temperature to 40 ° C.
It is also possible to include a water washing step after the development processing. Further, the development may be carried out with the alkali-soluble thermoplastic resin layer, the oxygen barrier layer and the photosensitive colored resin layer at once, but it reduces uneven development and deterioration of the layer due to the developing solution during the development of the photosensitive colored resin layer. Therefore, it is preferable to develop the photosensitive colored resin layer after first dissolving and removing the alkali-soluble thermoplastic resin layer and the oxygen barrier layer. When the photosensitive colored resin layer is subsequently developed, it is preferable that the developer used for removing the alkali-soluble thermoplastic resin layer and the oxygen blocking layer is selected so as not to deteriorate the photosensitive colored resin layer. This method is carried out by selecting a developing solution in consideration of the difference in dissolution rate between the alkali-soluble thermoplastic resin layer and the oxygen barrier layer and the photosensitive colored resin layer, or the liquid temperature, spray pressure, pressure when rubbing, etc. It can be carried out by appropriately combining the development processing conditions. By this method, development unevenness can be suppressed.

After the developing step, heat treatment is performed. That is, a support having a colored resin layer photocured by exposure (hereinafter referred to as a photocurable layer) is heated in an electric furnace, a drier or the like, or the photocured layer is irradiated with an infrared lamp to be heated. To do. The heating temperature and time depend on the composition of the polymerizable composition used and the thickness of the formed layer, but in general,
About 12 to obtain sufficient solvent resistance and alkali resistance
It is preferred to heat in the range of 0 ° C to about 250 ° C for about 10 minutes to about 300 minutes.

The photosensitive transfer sheet of the present invention can be advantageously used for producing a color printed circuit board and a multicolor image, in addition to producing the above-mentioned color filter. A copper-clad laminate known as a substrate is usually used for producing a printed wiring board.

[0047]

The present invention will be described in more detail based on the following examples, but the invention is not intended to be limited thereto.

Example 1 The following composition C was formed on a temporary support of a polyethylene terephthalate film having a thickness of 50 μm.
The coating liquid consisting of 1 is applied and dried to give a dry film thickness of 20 μm.
m alkali-soluble thermoplastic resin layer was provided.

[0049] <Composition C1 of coating liquid for forming thermoplastic resin layer>   ・ Methyl methacrylate / 2-ethylhexyl acrylate /     Benzyl methacrylate / methacrylic acid copolymer     (Copolymerization composition ratio (molar ratio) = 55/30/10/5,     Weight average molecular weight = 100,000, Tg: about 70 ° C.) 7.0 parts by mass   ・ Styrene / acrylic acid copolymer     (Copolymerization composition ratio (molar ratio) = 65/35,     Weight average molecular weight = 10,000, Tg: about 100 ° C) 13.0 parts by mass   ・ Bisphenol A with pentaethylene glycol mono     Compound obtained by dehydration condensation of 2 equivalents of methacrylate     (BPE-500; manufactured by Shin-Nakamura Chemical Co., Ltd.) 9.0 parts by mass   ・ Methyl ethyl ketone 63.0 parts by mass   ・ Methanol 15.0 parts by mass   ・ The following fluoropolymers     (Methyl isobutyl ketone 20 mass% solution) 0.15 mass part

The fluoropolymer is a copolymer of the following monomers and has a weight average molecular weight of 30,000 (R ^{1 in the} general formula (1) is a hydrogen atom, R ² is a methyl group, and n is 6). Is a monomer). (i) C ₆ F ₁₃ CH ₂ CH ₂ OCOCH = CH ₂ 52.5 mass% (ii) H (O (CH ₃ ) CHCH ₂ ) ₆ OCOCH = CH ₂ 40 mass% (iii) Methacrylic acid 7.5 mass% %

Next, the following composition P was formed on the thermoplastic resin layer.
The coating liquid consisting of 1 is applied and dried to give a dry film thickness of 1.6.
An oxygen barrier layer with a thickness of μm was provided. <Composition P1 of coating liquid for forming oxygen barrier layer> • Polyvinyl alcohol (PVA205 manufactured by Kuraray Co., Ltd., saponification degree: 88%) 100 parts by mass • Polyvinylpyrrolidone (PVP manufactured by GAF Corporation, K-30) 50 parts by mass Parts-Distilled water 1850 parts-methanol 1000 parts-mass

On the temporary support having the thermoplastic resin layer and the oxygen barrier layer, the following photosensitive red resin layer forming coating liquid was applied and dried to form a photosensitive red resin layer having a dry film thickness of 2 μm. Then, a polypropylene (12 μm thick) covering sheet was pressure-bonded onto the photosensitive red resin layer to form a photosensitive transfer sheet (photosensitive transfer material). The color unevenness of the appearance of the obtained photosensitive red sheet and the adhesiveness to the glass substrate surface were evaluated. The results are shown in Table 1.

[0053]   <Composition of coating liquid for forming photosensitive red resin layer>   ・ Benzyl methacrylate / methacrylic acid copolymer     (Molar ratio = 73/27,       Acid value = 73 mgKOH / g, weight average molecular weight = 30,000) 60.0 parts by mass   ・ Pentaerythritol tetraacrylate 43.2 parts by mass   ・ Michler's ketone 2.4 parts by mass   -2- (o-chlorophenyl) -4,5-   ・ Diphenylimidazole dimer 2.5 parts by mass   ・ Irgazin Red BPT 5.4 parts by mass   ・ Methyl cellosolve acetate 560 parts by mass   ・ Methyl ethyl ketone 280 parts by mass   ・ The following fluoropolymers     (Methyl isobutyl ketone 20 mass% solution) 1.0 mass part

The above-mentioned fluorine-containing polymer is a copolymer of the following monomers and has a weight average molecular weight of 30,000 (R ^{1 in the} general formula (1) is a hydrogen atom, R ² is a methyl group, and n is 6). Is a monomer). (i) C ₆ F ₁₃ CH ₂ CH ₂ OCOCH = CH ₂ 52.5 mass% (ii) H (O (CH ₃ ) CHCH ₂ ) ₆ OCOCH = CH ₂ 40 mass% (iii) Methacrylic acid 7.5 mass% %

[Preparation of Color Filter] Using the obtained photosensitive transfer sheet, a color filter having only red pixels was prepared by the following method. The cover sheet of the obtained photosensitive transfer sheet is peeled off, and the surface of the photosensitive red resin layer is removed.
Using a laminator (VP-II manufactured by Taisei Laminator Co., Ltd.) on the surface of the glass substrate (thickness: 1.1 mm), pressure (10 kg / cm ² ) and heating (130 ° C.) were applied to bond them together. The support was removed by peeling at the interface between the support and the thermoplastic resin layer.

Next, a photomask (20-60 μm on each side)
Through the square negative image) was used to expose the photosensitive red resin layer using an ultra-high pressure mercury lamp. The exposure amount was 20 mj / cm ² . Then, the alkali-soluble thermoplastic resin layer was dissolved and removed in 30 seconds using a 1% triethanolamine aqueous solution. Next, the photosensitive red resin layer was developed with a 1% sodium carbonate aqueous solution to remove the unexposed portion, thereby forming a pattern of red pixels (R). 22 glass substrates with red pixels
Heat at 0 ° C for 130 minutes to fully cure the pixel area,
A color filter having only red pixels was prepared, and the residue of the red pixels and the surface appearance of the color filter were evaluated. The results are shown in Table 1.

[Example 2] In Example 1, the content of the fluorine-based polymer monomer (i) in the composition of the coating liquid for forming the photosensitive red resin layer was changed from 52.5 to 40 parts by mass.
A photosensitive transfer sheet was prepared in the same manner as in Example 1 except that the content of i) was changed from 40 to 52.5 parts by mass.

[Example 3] In Example 1, as the fluorine-based polymer in the composition of the coating liquid for forming the photosensitive red resin layer, R ² of the general formula (1) of the monomer (ii) was changed from CH ₃ to hydrogen atom. A photosensitive transfer sheet was prepared in the same manner as in Example 1 except that the monomer substituted for was used.

Example 4 In Example 3, as the fluorine-based polymer in the composition of the coating liquid for forming the photosensitive red resin layer, the general formula (1) R ¹ of the monomer (ii) was converted from hydrogen atom to C
A photosensitive transfer sheet was prepared in the same manner as in Example 3 except that the H ₃ -substituted monomer was used.

[Example 5] In Example 1, as the fluorine-based polymer in the composition of the coating liquid for forming the photosensitive red resin layer, the general formula (1) R ¹ of the monomer (ii) was converted from hydrogen atom to C
A photosensitive transfer sheet was prepared in the same manner as in Example 1 except that the H ₃ -substituted monomer was used.

[Example 6] The same as Example 1 except that as the fluorine-based polymer, a monomer in which the general formula (1) n of the monomer (ii) was changed from 6 to 18 was used. A photosensitive transfer sheet was prepared.

[Example 7] In Example 1, except that the amount of the fluoropolymer solution in the composition of the coating solution for forming the photosensitive red resin layer was changed from 1.0 part by mass to 10 parts by mass.
A photosensitive transfer sheet was prepared in the same manner as in Example 1.

[Examples 8 to 14] In Example 1, as the fluorine-based polymer in the composition of the coating liquid for forming the photosensitive red resin layer, acrylic acid, itaconic acid, and maleic acid were respectively selected from methacrylic acid as the monomer (iii). A photosensitive transfer sheet was prepared in the same manner as in Example 1 except that a monomer substituted with an acid, crotonic acid, fumaric acid, monoethyl maleate, or styrenesulfonic acid was used.

[Example 15] In Example 1, the content of the fluorine-based polymer monomer (i) in the composition of the coating liquid for forming the photosensitive red resin layer was changed from 52.5 to 45 parts by mass.
A photosensitive transfer sheet was prepared in the same manner as in Example 1 except that the content of (iii) was changed from 7.5 to 15 parts by mass.

[Examples 16 and 17] In Example 1, the carbon number of the fluorocarbon of the monomer (i) of the fluoropolymer in the composition of the coating solution for forming the photosensitive red resin layer was changed from C ₆ to C ₁₀ and C, respectively. _A photosensitive transfer sheet was prepared in the same manner as in Example 1 except that the number was changed to ₃ .

[Embodiment 18]
Of the fluoropolymer in the composition of the coating solution for forming the red resin layer
Fluorocarbon of monomer (i) and CH₂CH₂Ream between O
From a single bond to the -SO ₂N (C_FourH₉) -Except changed to
A photosensitive transfer sheet was prepared in the same manner as in Example 1.

[Examples 19 to 21] In Example 15, from the methacrylic acid of the monomer (iii) of the fluoropolymer in the composition of the coating liquid for forming the photosensitive red resin layer, methacrylic acid / maleic acid (weight ratio 1 / 1) mixture, methacrylic acid / acrylic acid (weight ratio 1/1) mixture, methacrylic acid
A photosensitive transfer sheet was prepared in the same manner as in Example 15 except that the mixture was changed to / styrene sulfonic acid (weight ratio 1/1) mixture.

[Example 22] In Example 1, the copolymerization ratio of the fluorine-based polymer used in the composition C1 of the coating liquid for forming the thermoplastic resin layer was changed from H in the monomer (i) R ¹ to CH ₃ . A photosensitive transfer sheet was prepared in the same manner as in Example 1 except for the above.

[Examples 23 and 24] In Example 1, the copolymerization ratio of the fluorine-based polymer used in the composition C1 of the coating liquid for forming the thermoplastic resin layer was changed from 2 for m of the monomer (i) to 4 and 0, respectively. A photosensitive transfer sheet was prepared in the same manner as in Example 1 except that

[Example 25] The copolymerization ratio of the fluorine-based polymer used in the composition C1 of the coating liquid for forming a thermoplastic resin layer in Example 1 was changed from 52.5 to 60 parts by mass for the content of the monomer (i). A photosensitive transfer sheet was prepared in the same manner as in Example 1 except that the content of the monomer (iii) was changed from 7.5 to 0 part by mass.

Comparative Example 1 A photosensitive transfer sheet was prepared in the same manner as in Example 1 except that the fluoropolymer solution in the composition of the coating liquid for forming the photosensitive red resin layer was not used. did.

[Comparative Example 2] In Example 1, the content of the fluorine-based polymer monomer (i) in the composition of the coating solution for forming the photosensitive red resin layer was changed from 52.5 to 60 parts by mass, and the monomer (ii) was added.
A photosensitive transfer sheet was prepared in the same manner as in Example 1 except that the content of i) was changed from 7.5 to 0 parts by mass.

[Comparative Example 3] A polymer having the same composition as in Example 1 was used except that the weight average molecular weight of the fluorine-containing polymer in the composition of the coating liquid for forming the photosensitive red resin layer was changed from 30,000 to 10,000. A photosensitive transfer sheet was prepared in the same manner as in Example 1 except for the above.

[Comparative Example 4] In Example 1, the content of the fluorine-based polymer monomer (i) in the composition of the coating liquid for forming the photosensitive red resin layer was changed from 52.5 to 20 parts by mass.
A photosensitive transfer sheet was prepared in the same manner as in Example 1 except that the content of i) was changed from 40 to 72.5 parts by mass.

[Evaluation of the photosensitive red resin layer of the photosensitive transfer sheet] (1) Appearance of the surface of the photosensitive red resin layer
It was visually observed and evaluated as follows. The results obtained are shown in Table 1. AA: No color unevenness is observed, and the surface appearance is extremely good. BB: Color unevenness is slightly seen, but the surface appearance is good without any problems. CC: Some color unevenness is seen, but the surface appearance is normal without any problems. CC: Much color unevenness is seen, and the surface appearance is poor. DD: Color unevenness is observed on the entire surface, and the appearance of the surface is extremely poor. Practical level is CC or higher.

(2) Adhesion of the photosensitive red resin layer to the surface of the glass substrate The cover sheet of the obtained photosensitive transfer sheet was peeled off, and the surface of the photosensitive red resin layer was removed from the glass substrate (thickness 1.1 mm).
Laminator (VP-I manufactured by Taisei Laminator Co., Ltd.)
I) is used to apply pressure (10 kg / cm ² ) and heat (13
(0 ° C.) and then pasting, followed by peeling at the interface between the support and the thermoplastic resin layer to remove the support. The surfaces of the temporary support and the transferred uppermost layer were visually or microscopically observed and evaluated as described below. The results obtained are shown in Table 1. AA: The surface is uniform, no peeling marks are seen, and the adhesiveness is extremely good. BB: Peeling was slightly observed at the edge portion of the temporary support, but peeling did not occur at other portions, and the adhesiveness was good. CC: Some peeling is seen at the edge of the temporary support,
Adhesion is normal, with no peeling to other parts. DD: Adhesion is poor, because not only the edge portion but also other portions are slightly peeled off. EE: Peeling was observed on the entire surface, and the adhesiveness was extremely poor. Practical level is CC or higher.

(3) Red Pixel Residue The pixels and non-pixel portions of the obtained color filter were observed with a microscope and evaluated as follows. AA: No residue was found in the non-pixel portion, and the residue was extremely good. BB: A slight residue is seen in one of the four corners of the pixel, but no residue occurs in the other parts, and the residue is good. CC: A little residue is seen in the four corners of the pixel, but no residue occurs in other parts, and the residue is normal. DD: The residue is bad because one or more of the four sides of the pixel are linearly connected to the residue, and the residue is also observed in other non-pixel portions. EE: Not only a lot of residue is seen around the four sides of the pixel, but also a lot of residue is observed in the non-pixel portion, which is extremely bad. Practical level is CC or higher.

(4) Surface appearance of color filter The surface of the photosensitive red resin layer of the color filter was visually and microscopically observed and evaluated as follows. AA: No color unevenness is observed, and the surface appearance is extremely good. BB: Color unevenness is slightly seen, but the surface appearance is good without any problems. CC: Some color unevenness is seen, but the surface appearance is normal without any problems. CC: Much color unevenness is seen, and the surface appearance is poor. DD: Color unevenness is seen on the entire surface, and the appearance of the surface is extremely poor. Practical level is CC or higher.

[0079]

[Table 1]

As shown in Table 1, in Examples 1 to 25 of the present invention, all of the evaluated surface appearance of the photosensitive transfer sheet, adhesiveness to the substrate, development residue, and color filter surface appearance were at practical levels. While it is more than a certain CC,
Comparative Examples 1 to 4 are DD in any one of the evaluation targets.
The following evaluations are included.

[0081]

According to the present invention, there is provided a photosensitive transfer sheet having a photosensitive colored resin layer having a smooth surface, excellent adhesion to the substrate when transferred to the substrate, and a small development residue. it can. Further, it is possible to provide a photosensitive resin composition having a smooth surface, excellent adhesiveness to a substrate when transferred to the substrate, and suitable for forming a photosensitive resin layer having a small development residue.

Continued front page    F-term (reference) 2H025 AA04 AA14 AA17 AA18 AB11                       AB13 AC01 AD01 BC13 BC42                       CA00 CB08 CB14 CB41 CB42                       CB43 CB45 CB55 CC11 DA04                       EA08 FA17                 2H048 BA02 BA45 BA48 BB02 BB42                 4J027 AC02 AC03 AC06 BA02 BA07                       BA30 CA34 CB10 CD10

Claims (2)

[Claims] 1. A photosensitive resin composition comprising an alkali-soluble binder, an ethylenically unsaturated double bond-containing monomer capable of addition polymerization by irradiation of light, a photopolymerization initiator, a colorant, and a fluoropolymer. The fluorine-containing polymer has (i) a carbon atom number of 3 to 20, a fluorine atom content of 40% by mass or more, and a hydrogen atom bonded to at least 3 carbon atoms counted from the non-bonding side terminal is fluorine. A copolymer of an acrylate or methacrylate having a substituted fluoroaliphatic group, (ii) a compound represented by the following general formula (1), and (iii) a monomer having a carboxyl group or a sulfonic acid group in the molecule. And, in addition,
The acrylate or methacrylate unit having a fluoroaliphatic group of (i) is contained in the copolymer in the range of 40 to 70% by mass, the monomer of (iii) is contained in the range of 1 to 20% by mass, and the weight average molecular weight is Is a fluorinated polymer of 20,000 or more. [Chemical 1] General formula (1) (wherein R ¹ and R ² represent a hydrogen atom or a methyl group, and n
Represents an integer of 6 to 20) 2. A photosensitive transfer sheet in which an alkali-soluble thermoplastic resin layer, an oxygen barrier layer, and a photosensitive coloring resin layer are provided in this order on a support, and the photosensitive coloring resin layer comprises: Item 2. A photosensitive transfer sheet which is a layer formed from the photosensitive resin composition according to item 1.