| 摘要 |
PURPOSE:To improve a visible picture property after exposing and inking property by incorporating o-quinone diazide, novolak resin, halomethyl oxadioazole compd., halomethyl s-triazine compd. which is a discoloring agent, and compd. having the specific structural unit in the molecular structure into a titled compsn. CONSTITUTION:This printing plate has the o-quinone diazide, the novolak resin, and the halomethyl oxadiazole compd. and/or halomethyl s-triazine compd. which forms a free halogen group by irradiation of active rays on a base. The photosensitive layer consisting of the photosensitive compsn. contg. the discoloring agent which changes its color tone by interacting with said halomethyl compd. and the compd. which occupies 0.05-10wt.% of the total compsn. and has at least one kind of the structural units expressed by the formulas I, II (n is 2-5,000 integer) in the molecular structure is provided thereon. The inking property and the visible picture property after exposing are thereby improved. |
