发明名称 SILVER HALIDE COLOR PHOTOGRAPHIC MATERIALS
摘要 Silver Halide Color Photographic Materials Silver halide color photographic material comprising a support having coated thereon one or more silver halide emulsion layers, wherein at least one of said layers comprises in combination at least one of the cyan couplers having the following Formula (I) and at least one of the cyan couplers having the following Formula (II): Formula (I) wherein R1 is an aryl group, R2 is an alkyl group or an aryl group, R3 is a hydrogen atom, a halogen atom an alkyl group or an alkoxy group, and Z1 is a hydrogen atom, a halogen atom or a group which can be split off by the reaction of said coupler with the oxidized product of an aromatic primary amine-type color developing agent, Formula (II) wherein A is a -NHCO- group or a -CONH- group, R4 is an alkyl group, R5 is an alkyl group, R6 is a hydrogen atom, a halogen atom, an alkyl group or an alkoxy group or R5 and R6 can combine to form a benzene ring, and Z2 is a hydrogen atom, a halogen atom or a group which can be split off by the reaction of said coupler with the oxidized product of an aromatic primary amine-type color developing agent. Such combination of cyan couplers, when associated with the silver halide color photographic materials, gives high sensitivity and, upon coupling with the oxidized aromatic primary amine-type color developing agents, cyan indoaniline dyes very stable to light, heat, humidity and to bleaching solutions which have a weak oxidation power or are exausted.
申请公布号 CA2011730(A1) 申请公布日期 1990.09.09
申请号 CA19902011730 申请日期 1990.03.08
申请人 MINNESOTA MINING AND MANUFACTURING COMPANY 发明人 GIUSTO, GIOVANNI
分类号 G03C7/34;(IPC1-7):G03C1/46 主分类号 G03C7/34
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