| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for manufacturing an IR laser photosensitive planographic printing original plate having preferable scratch resistance and development latitude of a photosensitive layer and excellent reproducibility of an image with a minute area such as a high-light image. <P>SOLUTION: The method for manufacturing a planographic printing original plate having a photosensitive layer containing a polymer having a structural unit expressed by a general formula (1) on a supporting body is carried out by applying and drying the photosensitive layer on the supporting body, and then aging in an environment at 40 to 100°C and ≥0.007 kg/kg' absolute humidity for 5 hours or more , In the general formula (1), X represents a bivalent connecting group, R<SP>1</SP>represents an alkyl group or an aryl group and x represents 0 or 1. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
