| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a positive original plate of a planographic printing plate for an infrared laser which has excellent chemical resistance and wide development latitude. <P>SOLUTION: The positive original plate of the planographic printing plate contains (A) a polymer compound having a structure unit denoted by general formula (1) and a phenol hydroxyl group in a molecule, (B) a light heat conversion agent, and (C) a recording layer containing an amine compound having a methylol group or an alkoxy methyl group on a support. In the general formula (1), R<SP>1</SP>denotes a hydrogen atom or an arbitrary substitution group, X denotes a bivalent group, and R<SP>2</SP>has a non-shared electron versus coupling part and a hydrogen connectable hydrogen atom and denotes a monovalent substitution group capable of forming thermally reversible two or more hydrogen connection. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
