Method for desalting silver halide emulsion and silver halide em

Details Method for desalting silver halide emulsion and silver halide em Method for desalting silver halide emulsion and silver halide em

1995-03-28

1996-06-04

Huff, Mark F.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430567, 204528, 204529, G03C 1015, G03C 1106, B01D 6142

Patent

active

055232019

ABSTRACT:
A desalting method of a silver halide emulsion is disclosed, comprising removing soluble salts from the silver halide emulsion by electrodialysis, wherein said electrodialysis is carried out at a pH within a range of .+-.0.5 of an isoelectric point of a gelatin contained in the silver halide emulsion. Furthermore, by adding a salt during the course of the electrodialysis, the concentration of the emulsion is accomplished concurrently with desalting thereof.

REFERENCES:
patent: 4711722 (1987-12-01), Toyoshi et al.
patent: 4758505 (1988-07-01), Hoffmann
patent: 5169750 (1992-12-01), Vacca
patent: 5223388 (1993-06-01), Saitou

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