| 摘要 |
PURPOSE:To improve the sensitivity, the gradation, the density and the sharpness of the subject material, and to maintain the high performance of the photosensitive material even in the lapse of a long time by incorporating one kind of a specified yellow pigment forming coupler and one kind of a compd. in the photosensitive material, respectively. CONSTITUTION:One kind of the yellow pigment forming coupler shown by formula I or II and one kind of the compd. shown by formula III are incorporated in the photosensitive material. In formulas I-III, R1 is an aromatic, an aliphatic or a heterocyclic ring group, A1 is hydrogen or halogen atom, etc., B1 and B2 are each an antidiffusion group, X1 and X2 are each hydrogen atom or a group capable of being released by allowing it to react with the oxidant of an aromatic primary amine color developing main agent, R2 is a substituting group, (l) is an integer of 0-5, Z1 and Z2 are each oxazole nucleus or benzoxazole nucleus, etc., R3 and R4 are each alkyl or alkenyl group, etc., X3<-> is an acidic anion, (p) is 0 or 1. Thus, the sensitivity and the gradation of the photosensitive material are improved, and the high performance of the photosensitive material is maintained even in the lapse of the long time. |
