发明名称 |
Calcium ion stable photographic color developing composition and method of use |
摘要 |
A color developing composition is stable in the presence of calcium ion because of the presence of a specific polyphosphonic acid sequestering agent. The composition also comprises a color developing agent in free base form and an antioxidant for the color developing agent. The calcium ion sequestering agent is morpholinomethanediphosphonic acid or a salt thereof. This sequestering agent can be used alone to control calcium ion precipitates, or in combination with a polyaminopolyphonic acid or salt thereof. The composition can be used to provide images in various color photographic silver halide materials.
|
申请公布号 |
US2001012602(A1) |
申请公布日期 |
2001.08.09 |
申请号 |
US20010804339 |
申请日期 |
2001.03.12 |
申请人 |
EASTMAN KODAK COMPANY |
发明人 |
HAYE SHIRLEYANNE E.;HUSTON JANET M.;HENRY WILLIAM G. |
分类号 |
G03C7/407;G03C5/26;G03C5/305;G03C7/413;G03C7/42;(IPC1-7):G03C5/30 |
主分类号 |
G03C7/407 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|