Silver halide emulsion manufacturing method

Details Silver halide emulsion manufacturing method Silver halide emulsion manufacturing method

1997-10-22

1999-10-26

Huff, Mark F.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430568, 430599, 430603, 430607, 430613, 430615, G03C 108, G03C 109, G03C 1035, G03C 134

Patent

active

059725893

ABSTRACT:
The present invention relates to a method for manufacturing a silver halide photographic emulsion comprising a nucleation step, a growing step and a washing step, wherein a reduction sensitization is performed between said growing step and said washing step in the presence of a sulfuring agent and a stabilizer. According to a preferred embodiment a fine grain silver halide emulsion is added either between the addition of stabilizer and the addition of sulfuring agent or between the addition of sulfuring agent and the start of reduction sensitization or both.

REFERENCES:
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patent: 4610958 (1986-09-01), Matsuzaka et al.
patent: 5061614 (1991-10-01), Takada et al.
patent: 5079138 (1992-01-01), Takada
patent: 5114838 (1992-05-01), Yamada
patent: 5254456 (1993-10-01), Yamashita et al.
patent: 5290673 (1994-03-01), Nishikawa
patent: 5368999 (1994-11-01), Makino

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