| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a photosensitive planographic printing plate suitable for drawing with laser light, having excellent developing property and contamination preventing property in a nonimage part and excellent printing durability in an image part. <P>SOLUTION: The photosensitive planographic printing plate has a polymerizable photosensitive layer on a supporting body having the surface subjected to hydrophilic treatment. The photosensitive layer contains a polymerization initiator, a compound having an addition polymerizable ethylenically unsaturated bond, a polymer binder and a low molecular weight compound having both of a quaternary ammonium group and an acid anion group in one molecule. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
