公开(公告)号：US5457009A

公开(公告)日：1995-10-10

申请号：US214305

申请日：1994-03-17

申请人： Takashi Toyoda, deceased ,  Eiichi Okutsu ,  Kouta Fukui

发明人： Takashi Toyoda, deceased ,  Eiichi Okutsu ,  Kouta Fukui

IPC分类号： G03C1/34 ,  G03C1/76 ,  G03C5/29 ,  G03C5/31

CPC分类号： G03C1/7614 ,  G03C1/346 ,  G03C5/31

摘要： A method of processing a photographic material having, in the backing layer, at least one mercapto pyrimidine compound of formula (I), with an automatic developing machine, where the amount of the replenisher of the developer per unit area of the material being processed is reduced. The processed materials have stable photographic properties and few silver stains. The mercapto pyrimidine has the following structure ##STR1## wherein R.sub.1 and R.sub.2 each represents a hydrogen atom, an alkyl group, an aryl group, an aralkyl group, a hydroxyl group, a mercapto group, a carboxyl group, a sulfo group, a phosphono group, a nitro group, a cyano group, a halogen atom, an alkoxycarbonyl group, an aryloxycarbonyl group, a carbamoyl group, a sulfamoyl group or an alkoxy group. The sum of the carbon atoms contained in R.sub.1 and R.sub.2 is from 2 to 20. R.sub.1 and R.sub.2 may be bonded to each other to form a ring structure.

摘要翻译： 一种处理在背衬层中具有至少一种式（I）的巯基嘧啶化合物的照相材料的方法，其具有自动显影机，其中待处理材料的每单位面积的显影剂的补充量为 减少 加工材料具有稳定的照相性能和少量的银色污渍。 巯基嘧啶具有以下结构，其中R 1和R 2各自表示氢原子，烷基，芳基，芳烷基，羟基，巯基，羧基，磺基 膦酰基，硝基，氰基，卤素原子，烷氧基羰基，芳氧基羰基，氨基甲酰基，氨磺酰基或烷氧基。 R 1和R 2中所含的碳原子的总和为2〜20个.R 1和R 2可以相互结合形成环结构。