| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an original plate of a lithographic printing plate of a board-the-machine development type or a non-processing (non-development) type which can draw a picture by exposure to an infrared laser light, exhibits successful resistance to plate wear and recognizability of the plate after the exposure, and a lithographic printing method using the original plate of the lithographic printing plate of the aboard-the-machine development type. <P>SOLUTION: This original plate of the lithographic printing plate has at least an imaging layer which is formed on a support and can record an image by exposure to the infrared laser light. In addition, at least one layer of the original plate of the lithographic printing plate, contains an infrared absorbent, an acid generator, an acid discoloring agent and an acid proliferation agent. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
