| 摘要 |
PROBLEM TO BE SOLVED: To improve the color reproducibility of a multi-color printing by a method wherein the dimensional shift of a film support used for a lithographic printing plate material, out of which a lithographic printing plate is obtained by an easy developing treatment, is prevented from developing. SOLUTION: This photosensitive lithographic printing plate material is characterized in that an image recording layer requiring 30 minutes or longer, for water or toluene to penetrate is provided on the support of a lithographic printing plate. |
