Radiation imagery chemistry: process – composition – or product th – Post imaging processing – Treating with process composition between standard develop...
Patent
1998-05-27
1999-07-27
Le, Hoa Van
Radiation imagery chemistry: process, composition, or product th
Post imaging processing
Treating with process composition between standard develop...
430393, 430430, 430463, G03C 742
Patent
active
059288442
ABSTRACT:
A color photographic silver halide material is processed effectively without formation of rust after the bleaching step. Bleaching is accomplished using an iron chelate of a biodegradable aminopolycarboxylic acid chelating ligand that has a tendency to form "rust" or ferrous hydroxide in processing baths conventionally used after bleaching, such as washing solution. This tendency to form rust is overcome by spraying the bleached film with a washing solution before fixing, and without immersion of the film in that washing solution.
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Feeney Joseph D.
Foster David G.
Heiligman Leslie A.
Eastman Kodak Company
Le Hoa Van
Tucker J. Lanny
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