| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a photosensitive CTP flexographic printing original plate in which a photosensitive resin layer has excellent workability and a cured body has excellent transparency and elasticity at low temperature, an IR ablation layer has high sensitivity, and both the layers can be developed with water or a water-base liquid as a developing solution. <P>SOLUTION: The photosensitive printing original plate has at least (A) a support, (B) a photosensitive resin layer and (C) an IR ablation layer, wherein (B) the photosensitive resin layer contains a copolymer having at least one phosphoric ester group, (C) the IR ablation layer comprises at least one binder and at least one IR absorbing material and the thermal decomposition initiating temperature of the binder in air is ≤250°C. <P>COPYRIGHT: (C)2003,JPO |
