| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a negative photosensitive lithographic printing plate having good printing durability, storage stability, scratch resistance and blocking resistance, keeping a printing plate from edge contamination, and particularly suitable for newspaper printing. <P>SOLUTION: The negative photosensitive lithographic printing plate has a photosensitive layer containing at least a polymer having a carboxyl group in a side chain, a photopolymerization initiator and an infrared absorbing dye on an aluminum support, wherein the photosensitive layer also contains a color material which has absorption maximum at 350-550 nm but does not sensitize the photopolymerization initiator, and a hindered amine compound. <P>COPYRIGHT: (C)2008,JPO&INPIT |
