| 摘要 |
PROBLEM TO BE SOLVED: To provide an original plate for a planographic printing plate mounted on a printing press as it is without performing treatment after infrared scanning exposure based on a digital signal to be made printable, having on-board developability, hard to generate printing staining and having high printing durability. SOLUTION: In the original plate for the planographic printing plate is constituted by providing an image forming layer containing a hydrophobicity imparting precursor on a hydrophilic support, a hydrophilic graft polymer is added to the image forming layer. |
