Method of preparing silver halide photographic emulsion

Details Method of preparing silver halide photographic emulsion Method of preparing silver halide photographic emulsion

1984-05-04

1986-04-29

Louie, Won H.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430606, 430567, G03C 136

Patent

active

045857334

ABSTRACT:
A method of preparing a silver halide photographic emulsion comprising silver chloride as a principal component, which comprises adding to an aqueous solution of a hydrophilic colloid, an aqueous solution of a water-soluble silver salt and an aqueous solution of a water-soluble halide according to a simultaneous mixing method, and maintaining the rate of addition of the aqueous solution of a water-soluble silver salt and that of the aqueous solution of a water-soluble halide at a level not higher than the critical growth rate of silver halide grains and, at the same time, setting and maintaining the EAg value during the addition of the aqueous solution of a water-soluble silver salt and the aqueous solution of a water-soluble halide to a level not lower than 130 mV and not higher than 160 mV, said silver halide photographic emulsion being prepared in the presence of a water-soluble rhodium salt which is added during the course of emulsification and physical ripening of the emulsion.

REFERENCES:
patent: 4067739 (1978-01-01), Lewis
patent: 4301241 (1981-11-01), Saito
patent: 4399215 (1983-08-01), Wey
patent: 4452882 (1984-06-01), Akimura et al.

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