Production of a silver halide emulsion

Details Production of a silver halide emulsion Production of a silver halide emulsion

1989-08-04

1991-02-12

Le, Hoa Van

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430567, 430569, 430605, G03C 102

Patent

active

049923625

ABSTRACT:
The production of a photosensitive silver halide emulsion by precipitation of the silver halide in the presence of gelatine, flocculation and washing of the silver halide precipitated in the presence of the gelatine and redispersion with addition of more gelatine, precipitation being carried out in the presence of a gelatine having a gold number of at most 10 .mu.mol/g gelatine and a cysteine content of at most 6 ppm and redispersion being carried out with a gelatine having a gold number of at least 23 .mu.mol/g gelatine, leads to an emulsion of uniform grain distribution in which undesirably high fogging is avoided.

REFERENCES:
patent: 3888676 (1975-06-01), Evans
patent: 4131467 (1978-12-01), Bigelow
patent: 4496652 (1985-01-01), Haugh et al.

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