| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an original lithographic printing plate which can allow an image to be formed in itself without an alkali development procedure after laser exposure and has successful fine line reproducibility, resistance to plate wear, less susceptibility of contamination, aboard-the-machine developability and shelf stability. <P>SOLUTION: This original lithographic printing plate comprises a photopolymerization layer with laser sensitivity formed on a support and can allow an image to be formed in itself without an alkali development procedure. In addition, the printing plate comprises a copolymer having (a1) a repeating unit with a radical chain crosslinking group and (a2) a repeating unit with a functional group taking an interacting effect with the surface of the support, in the photopolymerization layer or another layer positioned between the support and the photopolymerization group. Further, the copolymer preferably has (a3) a repeating unit with a hydrophilic group. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
