| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a photopolymerizable photosensitive lithographic printing plate material having high sensitivity and excellent in printing durability, storage stability and preheating temperature admissibility and to provide a platemaking method. <P>SOLUTION: In the photopolymerizable photosensitive lithographic printing plate material having on an aluminum support a photosensitive layer containing (A) a photopolymerization initiator, (B) a polymeric binder, (C) a compound containing a polymerizable ethylenically unsaturated bond and (D) a dye having an absorption maximum in the wavelength range of 380-440 nm, the photosensitive layer contains an alkali-soluble urethane binder and an alkali-soluble vinyl-based binder as (B) the polymeric binder and (D) the dye having an absorption maximum in the wavelength range of 380-440 nm is a dye represented by formula (1). <P>COPYRIGHT: (C)2005,JPO&NCIPI |
