发明名称 |
Process for the treatment of photographic materials |
摘要 |
In the processing of developed imagewise exposed silver halide photographic material with a solution having fixing ability, the fixing efficiency is improved and environmental pollution prevented by employing a solution containing bromine ions or iodine ions as the fixing agent and incorporating in said solution or in a post-bath solution, a polymer having in its molecular structure pyrrolidone nucleus units and a molecular weight of about 2,000 to 500,000.
|
申请公布号 |
US4138257(A) |
申请公布日期 |
1979.02.06 |
申请号 |
US19770792559 |
申请日期 |
1977.05.02 |
申请人 |
KONISHIROKU PHOTO INDUSTRY CO., LTD. |
发明人 |
FUSHIKI, ISAMU;KOBOSHI, SIGEHARU;TERADA, SADATUGU |
分类号 |
G03C5/38;G03C5/26;G03C7/42;(IPC1-7):G03C5/38;G03C5/32 |
主分类号 |
G03C5/38 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|