| 摘要 |
PROBLEM TO BE SOLVED: To provide a photopolymerizable planographic printing plate which has strong adhesion strength between a photosensitive layer and a supporting body, such that it results in high sensitivity and superior reproducibility of tone, while preventing problems of thinning or disappearing of fine lines and highlight even when a large number of prints are produced and which has superior printing durability and no contamination in a non-image part, even when an alkali developer is fatigued with long-term use of even when the printing plate is stored over a long time. SOLUTION: This planographic printing plate has a layer containing a compd. produced by hydrolyzing, dehydrating and condensing a silane coupling agent having addition polymerizable ethylene-type double bonds, and a compd. having a polyethylene oxide chain expressed by -(CH2 CH2 O)n -(4<=n<=120), and a photosensitive layer containing a compd. having addition polymerizable ethylene-type double bonds and a photopolymn. initiator on this layer. |
