Method for manufacturing a silver halide emulsion
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United States of America Patent
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-
Aug 16, 1994
Grant Date -
N/A
app pub date -
Sep 2, 1992
filing date -
Sep 19, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method of manufacturing a silver halide emulsion wherein spectral sensitizing dyes are added after the formation of silver halide grains, and chemically ripening is then carried out at a temperature higher than the addition temperature of the spectral sensitizing dyes at 25.degree. C. to 55.degree. C., is disclosed. A material produced by this method has a high linearity in gradation between the medium density part and the shoulder part, and having a high Dmax value.
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