| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an original lithographic printing plate which allows the formation of a successfully visible color image and a lithographic printing method using the original plate. <P>SOLUTION: This original lithographic printing plate has a photosensitive/heat-sensitive layer which enables the recording of an image by laser exposure, formed on a support, and is characterized in that the photosensitive/heat-sensitive layer contains a polymer compound which discolors by a heat or light effect. The lithographic printing method is to print an image by mounting the original lithographic printing plate on a printing machine without passing through a development process after the recording of an image by laser exposure or recording an image after the mounting of the plate on the printing machine. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
