发明名称 |
A method for preparing a silver halide emulsion and a silver halide color photographic light-sensitive material containing the emulsion. |
摘要 |
<p>A method for preparing a silver halide emulsion. The method comprises supplying bromine and/or bromine ion at a plurality of processing stages to silver halide host grains to form a phase rich in silver bromide in the vicinity of the apexes of the grains. The host grains are substantially of a cube or octahedron and have a silver chloride content of about 95 mole% or more, and a silver bromide content of about 0 to about 5 mole%. The bromine and/or bromine ion is supplied at the plurality of stages by adding and mixing in a reaction vessel at least one of (i) a water soluble bromine compound, (ii) silver halide grains having a smaller average grain size and a larger silver bromide content than the silver halide host grains, and (iii) a bromine or bromine ion precursor represented by a certain formula (S). In at least one stage of the plurality of processing stages the bromine and/or bromine ion is supplied when the formation of the silver bromide-rich phase is at least 80% complete in the previous stage.</p> |
申请公布号 |
EP0531799(A1) |
申请公布日期 |
1993.03.17 |
申请号 |
EP19920114534 |
申请日期 |
1992.08.26 |
申请人 |
FUJI PHOTO FILM CO., LTD. |
发明人 |
KAWAI, HIROSHI |
分类号 |
G03C1/015;G03C1/035;G03C7/30 |
主分类号 |
G03C1/015 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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