Method of manufacturing solid processing composition for silver

Details Method of manufacturing solid processing composition for silver Method of manufacturing solid processing composition for silver

1995-11-01

1997-04-29

Le, Hoa Van

Radiation imagery chemistry: process, composition, or product th

Nonradiation sensitive image processing compositions or...

Fixer

430465, G03C 530

Patent

active

056247931

ABSTRACT:
A method of manufacturing a solid granular processing composition for a silver halide photographic light sensitive material is disclosed, the method comprising the steps of (1) fluidizing in air current powder particles comprising a compound selected from the group consisting of a thiosulfate, a sulfite, a bisulfite, an aminopolycarboxylic acid ferric complex, a carbonate, a p-phenylenediamine type developing agent and a hydroxylamine or its derivative; and (2) granulating the fluidized particles at a theoretical relative humidity of 15 to 60%, while spraying a binder water to the particles to obtain granules.

REFERENCES:
patent: 4923786 (1990-05-01), Kuhnert et al.
patent: 5053321 (1991-10-01), Kuhnert
patent: 5055384 (1991-10-01), Kuhnert
patent: 5135840 (1992-08-01), Reuter et al.
patent: 5457010 (1995-10-01), Satake et al.

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