发明名称 |
Methods for producing photographic silver halide emulsions |
摘要 |
A method for producing a silver halide emulsion having a silver chloride content of 50 mol % or more and containing silver halide grains in which (111) faces occupy 30% or more of their surface area, wherein said silver halide grains are formed in the presence of a pyridinium salt crystal habit modifier, and a thiocyanate and a sensitizing dye are added prior to a washing step of emulsion production, thereby removing the crystal habit modifier out of the emulsion to eliminate the side effect caused thereby and to improve photographic characteristics.
|
申请公布号 |
US5691128(A) |
申请公布日期 |
1997.11.25 |
申请号 |
US19960709030 |
申请日期 |
1996.09.06 |
申请人 |
FUJI PHOTO FILM CO., LTD. |
发明人 |
OHZEKI, KATSUHISA;YOSHIDA, DECEASED, YUJI |
分类号 |
G03C1/005;G03C1/015;G03C1/035;G03C1/07;G03C1/14;G03C1/22;(IPC1-7):G03C1/07 |
主分类号 |
G03C1/005 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|