| 摘要 |
PURPOSE:To improve sensitivity to semiconductor laser light by adding a specific compd. to a titled plate. CONSTITUTION:A photosensitive layer contg. photoconductive zinc oxide, binder resin and the compd. expressed by the formula I is provided to the titled printing plate. In the formula, A1-A4 denote naphthalene, anthracene; M denotes prescribed metals; Z denotes halogen, O, etc.; X denotes halogen, hydroxyl group, etc.; p denotes 0-2; k-n denote 0-8. A mixture of acryl polyol and epoxy resin, etc., is usable for a binder resin. The compd. expressed by the formula II is usable for the compd. expressed by the formula I. The content thereof is preferably 0.001-15% of the weight of the zinc oxide. |
