发明名称 |
Process of forming silver halide grains |
摘要 |
A process of producing silver halide grains by disposing a mixer outside of a reaction vessel for causing a nucleus formation and/or a crystal growth of silver halide grains and containing an aqueous protective colloid solution. The process further includes the steps of: supplying an aqueous solution of a water-soluble silver salt, an aqueous solution of a water-soluble halide(s), and an aqueous solution of a protective colloid to the mixer while controlling the flow rates of the solutions; mixing them while controlling the rotational speed of a stirring blade of the mixer to form fine, silver halide grains; and immediately supplying the fine grains into the reaction vessel to perform the nucleus formation and/or the crystal growth of the silver halide grains in the reaction vessel. The silver halide fine grains thus formed in the mixer are quickly diluted with a liquid withdrawn from the reaction vessel and then the diluted mixture is supplied to the reaction vessel.
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申请公布号 |
US5145768(A) |
申请公布日期 |
1992.09.08 |
申请号 |
US19890454243 |
申请日期 |
1989.12.21 |
申请人 |
FUJI PHOTO FILM CO., LTD. |
发明人 |
ICHIKAWA, YASUNORI;OHNISHI, HIROSHI;URABE, SHIGEHARU;KOJIMA, AKIRA;KATOH, AKIRA |
分类号 |
C01G5/02;G03C1/005;G03C1/015 |
主分类号 |
C01G5/02 |
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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