发明名称 |
Process for forming black dye images |
摘要 |
A process for forming a dye image is disclosed which comprises processing an image-wise exposed silver halide photographic emulsion with an aromatic primary amine color developing agent in the presence of bis pyrazolines obtained by reacting 3-acylamino-5-pyrazolones with para-hydroxybenzaldehydes having at least one of the ortho positions to the hydroxy group substituted with a member selected from halogen, alkyl, aryl, amino or amido groups. The invention includes the present dye forming coupler alone and combined with the silver halide emulsion layer.
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申请公布号 |
US4254213(A) |
申请公布日期 |
1981.03.03 |
申请号 |
US19800115809 |
申请日期 |
1980.01.28 |
申请人 |
KONISHIROKU PHOTO INDUSTRY CO., LTD. |
发明人 |
MASUDA, KOSAKU;WADA, HAJIME;YAMASHITA, KIYOSHI |
分类号 |
G03C1/00;C07D231/40;C09B26/02;G03C7/384;(IPC1-7):G03C7/00;G03C1/40 |
主分类号 |
G03C1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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