| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lithographic printing original plate which can form a color image having high color development and excellent plate inspectability by IR laser exposure and attains compatibility between printing resistance and on-press developability without needing a developing process, and to provide a method for producing the same. <P>SOLUTION: The lithographic printing original plate has an image recording layer on a support, wherein the image recording layer contains (A) a nonionic compound expressed by general formula (1), (B) an infrared ray absorbing dye and (C) a photo-polymerization initiator. In the formula (1), L<SB>1</SB>, R<SB>1</SB>and R<SB>2</SB>each represents a hydrogen atom or the like, R<SB>3</SB>represents a monovalent organic group, X<SB>1</SB>and X<SB>2</SB>each represents a sulfur atom or the like and Ar<SB>1</SB>and Ar<SB>2</SB>each represents an aromatic ring or the like. <P>COPYRIGHT: (C)2010,JPO&INPIT |
