发明名称 LIGHT-SENSITIVE SILVER HALIDE COLOR PHOTOGRAPHIC ELEMENTS COMPRISING PHENOL CYAN COUPLERS AND SPECTRAL SENSITIZING DYES
摘要 Light-sensitive silver halide color photographic element having at least one layer comprising a silver halide photographic emulsion, at least one 2,5-diacylamino phenol cyan coupler and at least one sulfo substituted thiacarbocyanine spectral sensitizing dye, wherein such spectral sensitizing dye is added to the silver halide photographic emulsion after the desalting step in the preparation process of said emulsion. Process for spectral sensitizing a silver halide photographic emulsion containing at least one 2,5-diacylamino phenol cyan coupler, the process comprising the steps of desalting the silver halide emulsion, spectrally sensitizing said emulsion by addition of at least one sulfo substituted thiacarbocyanine spectral sensitizing dye, chemically sensitizing said emulsion and then adding at least one 2,5-diacylamino phenol cyan coupler to said emulsion.
申请公布号 WO9201970(A1) 申请公布日期 1992.02.06
申请号 WO1991US04593 申请日期 1991.06.28
申请人 MINNESOTA MINING AND MANUFACTURING COMPANY 发明人 BELTRAMINI, WALTER
分类号 G03C1/015;G03C1/12;G03C1/18;G03C7/34 主分类号 G03C1/015
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