| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a planographic printing plate material having excellent sensitivity, storage stability and development latitude and excellent adhesion property of a protective layer. <P>SOLUTION: The planographic printing plate material has a photopolymerizable photosensitive layer containing a polymerizable ethylenically unsaturated bond-containing compound, a photopolymerization initiator and a polymer binder, and a protective layer on a supporting body, wherein the photopolymerizable photosensitive layer contains a polymerizable ethylenically unsaturated bond-containing compound having an amide bond and a tertiary amine group in the molecule as the polymerizable ethylenically unsaturated bond-containing compound. The protective layer contains (A) polyvinyl alcohol having 90% to 100% saponification degree and (B) a vinylpyrrolidone copolymer derivative containing ≥40 mol% vinyl pyrrolidone units and having 10,000 to 500,000 weight average molecular weight, wherein the proportion of the component (B) is 1 to 30 mass% based on the total amount of the components (A) and (B). <P>COPYRIGHT: (C)2006,JPO&NCIPI |
