Radiation imagery chemistry: process – composition – or product th – Stripping process or element – Element
Reexamination Certificate
2003-04-02
2003-12-30
McPherson, John A. (Department: 1756)
Radiation imagery chemistry: process, composition, or product th
Stripping process or element
Element
C430S007000, C430S259000, C430S260000, C430S262000
Reexamination Certificate
active
06670091
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a photosensitive transfer material, and, particularly to a photosensitive transfer material preferable for transferring to an irregular surface of a substrate in a dry system.
2. Description of the Related Art
Photosensitive transfer materials for making liquid crystal cell color filters is known which are produced by forming a thermoplastic resin layer, an alkali-soluble intermediate layer and an alkali-soluble photosensitive resin layer containing a pigment in this order on a temporary support. Examples of the photosensitive transfer material are described in, for example, Japanese Patent Application Laid-Open (JP-A) Nos. 5-173320 and 11-149008.
In these photosensitive materials, a polyvinyl alcohol (PVA) is used as a binder for the intermediate layer from the viewpoint that it is preferable in the points of sensitivity and filming ability. On the other hand, although various polymers may be used for a binder of the thermoplastic resin layer, it is necessary to use a low elastic material as the binder to laminate the thermoplastic resin layer on a glass substrate.
When such a photosensitive recording material is cut in a processing step, there is a problem that the intermediate layer is broken at the cut portion, causing the generation of chips. Specifically, these chips are as small as about several &mgr;m. However, when these chips are stuck to the surface of the photosensitive transfer material which is the cut material, the stuck portion is not exposed to light in the case of carrying out exposure in the successive step for producing the color filter, causing pixel defects of the finally obtained color filter. Particularly, this pixel defect in recent precise color filters greatly deteriorates product quality and photosensitive transfer materials free from the generation of chips in a processing step are therefore desired.
SUMMARY OF THE INVENTION
It is an object of the present invention to solve the foregoing prior art problem and to provide a photosensitive material limited in the generation of chips during cutting in a processing step.
Specific means for solving the above object are as follows.
According to a first aspect of the invention, there is provided a photosensitive transfer material (I) comprising a temporary support and a thermoplastic resin layer, an alkali-soluble intermediate layer and an alkali-soluble photosensitive resin layer containing a pigment, the thermoplastic resin layer, the alkali-soluble intermediate layer and the alkali-soluble phososensitive resin layer being laminated in this order on the support, wherein a ratio (Em/Ep) of an elastic modulus Em of the intermediate layer to an elastic modulus Ep of the thermoplastic resin layer is in the range of 0.8 to 2.0.
According to a second aspect of the invention, there is provided a photosensitive transfer material (II) comprising a temporary support and a thermoplastic resin layer, an alkali-soluble intermediate layer and an alkali-soluble photosensitive resin layer containing a pigment which layers are disposed in this order on the support, wherein the ratio (Em/Ep) of the elastic modulus Em of the intermediate layer to the elastic modulus Ep of the thermoplastic resin layer is in the range of 0.8 to 1.5.
According to a third aspect of the invention, there is provided a photosensitive transfer material, wherein the intermediate layer of the photosensitive transfer material (I) contains a polyvinyl alcohol.
According to a fourth aspect of the invention, there is provided a photosensitive transfer material, wherein the intermediate layer of the photosensitive transfer material (II) contains a polyvinyl alcohol.
According to a fifth aspect of the invention, there is provided a photosensitive transfer material, wherein the intermediate layer of the photosensitive transfer material (I) contains a polymer latex.
According to a sixth aspect of the invention, there is provided a photosensitive transfer material, wherein the intermediate layer of the photosensitive transfer material (II) contains a polymer latex.
According to a seventh aspect of the invention, there is provided a photosensitive transfer material, wherein the intermediate layer of the photosensitive transfer material (I) contains a polyvinyl alcohol and a polymer latex.
According to an eighth aspect of the invention, there is provided a photosensitive transfer material, wherein the intermediate layer of the photosensitive transfer material (II) contains a polyvinyl alcohol and a polymer latex.
According to a ninth aspect of the invention, there is provided a photosensitive transfer material, wherein the intermediate layer of the photosensitive transfer material (I) contains a polymer latex and the polymer latex is a polymer latex (III) which is a polymer or a copolymer selected from the group consisting of acryl type, vinyl acetate type, rubber type, olefin type, polyester type, polyurethane type and polystyrene type polymers and copolymers thereof.
According to a tenth aspect of the invention, there is provided a photosensitive transfer material, wherein the intermediate layer of the photosensitive transfer material (II) contains a polymer latex (III).
According to an eleventh aspect of the invention, there is provided a photosensitive transfer material, wherein the intermediate layer of the photosensitive transfer material (I) contains a polyvinyl alcohol and a polymer latex (III).
According to an twelfth aspect of the invention, there is provided a photosensitive transfer material, wherein the intermediate layer of the photosensitive transfer material (II) contains a polyvinyl alcohol and a polymer latex (III).
According to a thirteenth aspect of the invention, there is provided a photosensitive transfer material, wherein the intermediate layer of the photosensitive transfer material (I) contains a polymer latex (III) and the polymer latex (III) has a glass transition temperature (Tg) of 60° C. or less.
According to a fourteenth aspect of the invention, there is provided a photosensitive transfer material, wherein the intermediate layer of the photosensitive transfer material (II) contains a polymer latex (III) and the polymer latex (III) has a glass transition temperature (Tg) of 60° C. or less.
According to a fifteenth aspect of the invention, there is provided a photosensitive transfer material, wherein the intermediate layer of the photosensitive transfer material (I) contains a polyvinyl alcohol and a polymer latex (III) and the polymer latex (III) has a glass transition temperature (Tg) of 60° C. or less.
According to a sixteenth aspect of the invention, there is provided a photosensitive transfer material, wherein the intermediate layer of the photosensitive transfer material (II) contains a polyvinyl alcohol and a polymer latex (III) and the polymer latex (III) has a glass transition temperature (Tg) of 60° C. or less.
According to a seventeenth aspect of the invention, there is provided a photosensitive transfer material, wherein the intermediate layer of the photosensitive transfer material (I) contains a polymer latex, and a content of said polymer latex is from 5 to 70% by mass based on a mass of the resin.
According to an eighteenth aspect of the invention, there is provided a photosensitive transfer material, wherein the intermediate layer of the photosensitive transfer material (II) contains a polymer latex, and a content of said polymer latex is from 5 to 70% by mass based on a mass of the resin.
According to a nineteenth aspect of the invention, there is provided a photosensitive transfer material, wherein the intermediate layer of the photosensitive transfer material (I) contains a polyvinyl alcohol and a polymer latex, and a content of said polymer latex is from 5 to 70% by mass based on a mass of the resin.
According to a nineteenth aspect of the invention, there is provided a photosensitive transfer material, wherein the intermediate layer of the photosensitive transfer material (II) contains a polyvinyl alcohol and a polymer lat
Fuji Photo Film Co. , Ltd.
McPherson John A.
Taiyo, Nakajima & Kato
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