Cleaning of emulsion manufacturing apparatus

Details Cleaning of emulsion manufacturing apparatus Cleaning of emulsion manufacturing apparatus

1995-02-08

1995-11-07

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Combined

430569, 4236585, 423 27, 75713, G03C 1124, G03C 1015

Patent

active

054647274

ABSTRACT:
The present invention is a method for cleaning and preparing photographic manufacturing equipment surfaces. An aqueous solution of potassium iodide and ferric ethylenediamine tetraacetate is prepared. The solution is flushed over the surfaces of the photographic manufacturing equipment removing deposited silver halide and silver. A high purity water flush is then performed.

REFERENCES:
patent: 4256704 (1981-03-01), Howard
patent: 5064466 (1991-11-01), Hilton
patent: 5241992 (1993-09-01), Oehlbeck et al.

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