Process of producing silver halide grains and apparatus therefor
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United States of America Patent
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-
Dec 14, 1993
Grant Date -
N/A
app pub date -
Dec 21, 1989
filing date -
Dec 26, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A process and apparatus for producing silver halide grains wherein by removing water, etc., from a liquid containing fine, silver halide grains formed in a mixer and being added to a reaction vessel, the yield of the silver halide grains grown in the reaction vessel per unit amount of the raw materials used is increased. Also, by removing a portion of the water, used for the dilution, from the liquid being added to the reaction before the addition thereof, the amount of diluting water effective for the formation of silver halide fine grains in the mixer is increased, to thereby form finer silver halide grains in the mixer.
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