| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a photosensitive lithographic printing plate material which realizes decrease in the development sludge and decrease in the developer replenishing amount, and to provide a method for developing the lithographic printing plate material. <P>SOLUTION: The plate material has a photopolymerizable photosensitive layer containing a compound having at least an ethylenic unsaturated bond, an alkali-soluble polymer and a photopolymerization initiator, and an oxygen shielding layer containing polyvinylalcohol having ≤1,000 polymerization degree and an acetylene compound on a supporting body. The photosensitive lithographic printing plate material is treated with an alkali aqueous solution containing an amphoteric surfactant, anionic surfactant, chelating agent, aminoalcohol and a monofunctional or polyfunctional N-alkoxylated amine. <P>COPYRIGHT: (C)2004,JPO |
