| 摘要 |
PURPOSE:To obtain the title composition which has excellent UV ink printing aptitude and durability against a processing reagent used for an UV ink printing, and is suitable for a photosensitive planographic printing plate by incorporating a quinone diazide compd. and a vinyl polymer which has a phenolic hydroxyl group and a specified glass transition temp., in the composition. CONSTITUTION:The quinone diazide compd. and the vinyl polymer which has the phenolic hydroxyl group and 100-300 deg.C glass transition temp. are incorporated in the composition. The quinone diazide compd. is composed of an ester compd. obtd. by esterifying o-naphthoquinone diazide sulfonic acid and phenols and an aldehyde or a ketone polycondensate resin. The compounding amount of the quinone diazide compd. in the photosensitive composition is preferably 5-60wt.%, more preferably, 10-50wt.%. Thus, the photosensitive composition which has the excellent printing aptitude and durability against the processing reagent used for the UV ink printing and is suitable for the photosensitive planographic printing plate, is obtd. |
