MODIFIED PEPTIZER TWINNED GRAIN SILVER HALIDE EMULSIONS AND PROCESSES FOR THEIR PREPARATION

摘要

MODIFIED PEPTIZER TWINNED GRAIN SILVER HALIDE EMULSIONS AND PROCESSES FOR THEIR PREPARATION The present invention is directed to a process of precipitating for use in photography a silver halide emulsion employing a gelatino-peptizer containing alkylated methionine and to an emulsion produced by this process. A variety of advantages can be realized, including an increase in the population of twinned grains and a higher yield of thin tabular grains.