发明授权
US06432625B1 Processing method providing cold blue-black image tone for black-and-white materials having silver halide grain emulsions
失效
为具有卤化银颗粒乳剂的黑白材料提供冷蓝黑色图像色调的处理方法
- 专利标题： Processing method providing cold blue-black image tone for black-and-white materials having silver halide grain emulsions
- 专利标题（中）： 为具有卤化银颗粒乳剂的黑白材料提供冷蓝黑色图像色调的处理方法
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申请号： US09708566申请日： 2000-11-09
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公开(公告)号： US06432625B1公开(公告)日： 2002-08-13
- 发明人: Ann Verbeeck , Govert Wim De Baecke , Johan August Loccufier , Kathy Gaby Elst , André Cornelius Roefs , Freddy Hendrickx
- 申请人： Ann Verbeeck , Govert Wim De Baecke , Johan August Loccufier , Kathy Gaby Elst , André Cornelius Roefs , Freddy Hendrickx
- 优先权： EP99204007 19991126
- 主分类号： G03C5305
- IPC分类号： G03C5305
摘要：
A method has been described for processing an exposed black-and-white silver halide photographic film material comprising in a hydrophilic light-sensitive layer thereof a binder and silver halide grains being {111} or {100} tabular silver bromo(chloro)iodide or silver chloro(bromo)iodide grains having an average aspect ratio of from 1.2 to 50 and having a silver iodide content of less than 3 mole % based on silver with at least part of it at their grain surface, said method comprising the steps of developing in a developer, fixing in a fixer, rinsing and drying, characterized in that in said developing step the developer comprises an alkali soluble agent having preventing silver dissolution properties, being a mercapto azole compound as presented herein.
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