| 摘要 |
PURPOSE:To provide a positive type photosensitive planographic printing plate whose printing resistance is considerably enhanced by burning. CONSTITUTION:In this positive type photosensitive planographic printing plate obtd. by forming a photosensitive layer on a substrate, the photosensitive layer contains an org. peroxide, a resin insoluble in water but soluble in an alkali soln. and o-quinone diazide, a diazonium salt or a mixture of a compd. which generates an acid at the time of exposure with a compd. having at least one C-O-C group decomposable with the acid. |
