Process of preparing photosensitive silver halide emulsions

Details Process of preparing photosensitive silver halide emulsions Process of preparing photosensitive silver halide emulsions

1992-05-08

1993-09-21

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430567, 430611, G03C 1005

Patent

active

052468267

ABSTRACT:
The present invention relates to a process of preparing a photosensitive silver halide emulsion. In this process, an emulsion comprising an acid substituted organic ripening agent and a dispersing medium is prepared. Silver halide grains are then permitted to grow in the emulsion at a pH of from about 2 to about 4.6 to accelerate the growth of the silver halide grains. Subsequently, the pH of the emulsion is adjusted to a value of about 5.3 to about 7 to repress grain growth, to prevent interference with dye sensitization, and to limit fog formation, particularly during storage of the coated emulsion.

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