| 摘要 |
PROBLEM TO BE SOLVED: To provide an original plate for a lithographic printing plate in which the surface of a coating film and the back of an aluminum support are prevented from being hurt during manufacture, transportation, and handling and prevent the adhesion of dust during production to cause deterioration in the performance of the original plate. SOLUTION: In the original plate for the lithographic printing plate having a photosensitive layer sensitive to laser beams on the aluminum support, a mat is provided on the support of the opposite surface to the photosensitive layer. |
