| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an on-press developing type lithographic printing original plate which performs image recording by laser exposure, exhibits excellent plate wear resistance, and on-press developability, and form a print-out image providing good plate inspection performance. <P>SOLUTION: The lithographic printing original plate has an image recording layer which contains a compound, a sensitizing dye and a polymerizable compound represented by formula (I). In the formula (I), preferably at least one of R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP>, R<SP>4</SP>, R<SP>5</SP>and R<SP>6</SP>is a compound being a polymerizable substituent. In the formula (I), R<SP>1</SP>represents a monovalent substituent, each of R<SP>2</SP>, R<SP>3</SP>, R<SP>4</SP>, R<SP>5</SP>and R<SP>6</SP>independently represents a hydrogen atom, a halogen atom or a monovalent substituent, and X<SP>-</SP>represents an anion. <P>COPYRIGHT: (C)2009,JPO&INPIT |
