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    • 96. 发明授权
    • Process for the production of colored photographic images by the silver
dye-bleach process
    • 通过银染料漂白工艺生产彩色摄影图像的方法
    • US4369318A
    • 1983-01-18
    • US169709
    • 1980-07-17
    • Gerald Jan
    • Gerald Jan
    • G03C7/02C07D237/34C07D237/36C07D471/04C07D471/14G03C7/28
    • C07D471/04C07D237/36C07D471/14G03C7/28
    • A process for the production of colored photographic images by the silver dye-bleach process by image-wise exposure and subsequent processing by developing the silver image, dye-bleaching and silver bleaching, it being possible, optionally, for the last two steps to be combined, silver fixing and washing, in which process dye-bleaching and/or silver bleaching is carried out in the presence of at least one bleach catalyst of the formula ##STR1## In the formula, A and B are in each case the non-metallic atoms necessary to complete a benzene or pyridine ring, R.sub.1 and R.sub.3 are each hydrogen, hydroxyl, halogen, alkyl, carboxyl, carbalkoxy, carbalkoxyalkoxy, --CH.sub.2 OH, --O(CH.sub.2).sub.n OH, --O(CH.sub.2).sub.2 O(CH.sub.2).sub.2 OH, --CH.sub.2 Cl, --CH.sub.2 Br, --NR.sub.5 R.sub.6, --CH.sub.2 NR.sub.5 R.sub.6, --O(CH.sub.2).sub.n NR.sub.5 R.sub.6, --CH.sub.2 SO.sub.3 M, --O(CH.sub.2).sub.n SO.sub.3 M or --SO.sub.3 M, R.sub.2 and R.sub.4 are each hydrogen, hydroxyl, alkyl or alkoxy and R.sub.5 and R.sub.6 are each hydrogen or alkyl, M is hydrogen, an alkali metal, ammonium and alkylammonium and n is an integer from 2 to 4.
    • 通过图像曝光和随后的显影银图像,染色漂白和银漂白的银染色漂白工艺生产彩色摄影图像的方法,可选地,最后两个步骤是 组合的银固定和洗涤,其中染色漂白和/或银漂白在至少一种下式的漂白催化剂的存在下进行。在该式中,A和B在每种情况下都是非 - 完成苯或吡啶环所需的金属原子,R 1和R 3各自为氢,羟基,卤素,烷基,羧基,烷氧基,烷氧基烷氧基,-CH 2 OH,-O(CH 2)n OH,-O(CH 2)2 O(CH 2) ,-CH2Cl,-CH2Br,-NR5R6,-CH2NR5R6,-O(CH2)nNR5R6,-CH2SO3M,-O(CH2)nSO3M或-SO3M,R2和R4各自为氢,羟基,烷基或烷氧基,R5和R6为 每个氢或烷基,M是氢,碱金属,铵和烷基铵,n是2至4的整数。