| 摘要 |
PURPOSE:To obtain a photosensitive resin printing plate material superior adhesion and resistance to an ink solvent by forming an interlayer between a base and the photosensitive resin layer. CONSTITUTION:The photosensitive resin layer contg. a photopolymerizable component having ethylenically unsatd. bonds is formed on the base to form the photosensitive resin printing plate material, and the 0.5-100mum thick interlayer made of a compsn. contgl the following components A, B, and C between the base and the resin layer: A 100pts.wt. of a satd. polyester soluble in org. solvents and having a mol.wt. of 5,000-50,000; B 5-200pts.wt. of polyvalent isocyanate having >=2 isocyanate groups in one molecule; and C 0.1-150pts. wt. of a compd. having >=2 epoxy groups. The component A is synthesized from a satd. pcarboxylic acids or their derivs. and polyols and this polyester is soluble in ordinary org. solvents along or a mixture of 2 kinds or more of solvents, e.g., hydrocarbons, such as benzene, halogenated hydrocarbons, such as carbon tetrachloride. |
