发明授权
- 专利标题: Silver halide photographic material
- 专利标题(中): 卤化银照相材料
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申请号: US724628申请日: 1985-04-18
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公开(公告)号: US4614710A公开(公告)日: 1986-09-30
- 发明人: Shun Takada , Takashi Kadowaki , Kaoru Onodera
- 申请人: Shun Takada , Takashi Kadowaki , Kaoru Onodera
- 申请人地址: JPX
- 专利权人: Konishiroku Photo Industry Co., Ltd.
- 当前专利权人: Konishiroku Photo Industry Co., Ltd.
- 当前专利权人地址: JPX
- 优先权: JPX59-78886 19840419
- 主分类号: G03C7/34
- IPC分类号: G03C7/34 ; G03C7/32
摘要:
A silver halide photographic material having one or more silver halide emulsion layers formed on a support is disclosed, wherein at least one of said silver halide emulsion layers contains a cyan coupler of formula (I) in combination with a cyan coupler of formula (II): ##STR1## (wherein R.sub.1 is an alkyl group, an aryl group, a cycloalkyl group or a heterocyclic group; R.sub.2 is a halogen atom or a monovalent organic group; m is an integer of 0 to 4, provided that when m is 2 or more, R.sub.2 may be the same or different; R.sub.3 is a hydrogen atom, a halogen atom, an alkyl group or an alkoxy group; W is an alkylsulfonamido group, an arylsulfonamido group, an alkylsulfamoyl group or an arylsulfamoyl group; R.sub.4 is an alkylene group; X is a divalent group; l is 0 or a positive integer; Z.sub.1 is a hydrogen atom or a group capable of leaving upon reaction with the oxidized product of an aromatic primary amine color developing agent); ##STR2## (wherein R.sub.5 is an alkyl or alkoxy group; n is an integer of 0 to 5, provided that when n is 2 or more, R.sub.5 may be the same or different; R.sub.6 is an alkylene group; R.sub.7 is an alkyl group; R.sub.8 is a hydrogen atom, a halogen atom or an alkyl group; and Z.sub.2 is a hydrogen atom or a group capable of leaving upon reaction with the oxidized product of an aromatic primary amine color developing agent).
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