Method for preparing photographic emulsion

Details Method for preparing photographic emulsion Method for preparing photographic emulsion

1990-10-18

1992-08-25

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430567, G03C 102

Patent

active

051418460

ABSTRACT:
A method for manufacturing a photosensitive silver halide emulsion which comprises the steps, in sequence, of forming silver bromide grains which have predominantly (111) crystal faces or mixed halide grains of any morphology in the presence of a hydrophilic colloid; contacting said grains with a silver halide complexing agent which also forms insoluble silver salts; spectrally sensitizing said grains with an aggregating spectral sensitizing dye prior to or simultaneously with chemical sensitization of said grains wherein said spectral sensitization takes place the presence of said silver halide complexing agent.

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patent: 4791053 (1988-12-01), Ogawa
patent: 4828972 (1989-05-01), Ihama et al.

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