| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a photosensitive composition and a lithographic printing original plate free of variation in sensitivity, excellent in adhesion to a support and in scratch resistance, also free of a banding phenomenon, having high printing durability, and not requiring an overcoat layer. <P>SOLUTION: The photosensitive composition comprises an alkali-soluble copolymer (A) having a copolymer unit of a styrene unit and a vinyl cinnamate or vinyl phenylbutadienoate unit, a polymerizable compound (B), a polymerization initiator (C) and an infrared absorbent (D). <P>COPYRIGHT: (C)2008,JPO&INPIT |
