发明授权
- 专利标题: Silver halide multilayer color photographic material
- 专利标题(中): 卤化银多层彩色照相材料
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申请号: US09877467申请日: 2001-06-08
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公开(公告)号: US06518005B2公开(公告)日: 2003-02-11
- 发明人: Piero Cavalleri , Raffaella Biavasco , Stefano Parodi
- 申请人: Piero Cavalleri , Raffaella Biavasco , Stefano Parodi
- 优先权: ITSV2000A31 20000707
- 主分类号: G03C146
- IPC分类号: G03C146
摘要:
The present invention refers to photographic elements having, coated on a support base, at least one silver halide emulsion layer sensitized to a radiation different from the blue one in addition to its intrinsic sensitivity to the blue region, and a yellow filter layer positioned between said at least one silver halide emulsion layer and the exposure source, where such yellow filter layer contains a yellow filtering dye represented by the formula (1): wherein R and R1 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkylene group, a substituted or unsubstituted heterocyclic group or a substituted or unsubstituted aryl group; R2, R3 and R4 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group and R3 and R4 may be combined to form a 6-membered ring.
公开/授权文献
- US20020031735A1 Silver halide multilaye color photographic material 公开/授权日:2002-03-14
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