Method for processing photographic silver dye-bleach materials a

Details Method for processing photographic silver dye-bleach materials a Method for processing photographic silver dye-bleach materials a

1981-02-17

1982-12-28

Brown, J. Travis

Radiation imagery chemistry: process, composition, or product th

Color imaging process

Using identified radiation sensitive composition in the...

430392, 430393, 430430, 430431, 430460, 430462, G03C 700

Patent

active

043662323

ABSTRACT:
A method for processing exposed and developed photographic silver dye-bleach materials, in which the exposed and developed material is treated with aqueous bleaching preparations which contain (a) an acid component, (b) a silver complexing agent, (c) one or more bleach catalysts, (d) optionally an antioxidant, (e) optionally a water-soluble oxidizing agent and (f) optionally a bleaching accelerator.
A water-soluble and as a rule solid adduct of an acid amide or a lactam and a strong mineral acid is used as acid component (a).

REFERENCES:
patent: 3615494 (1971-10-01), Watanabe et al.
patent: 3961957 (1976-06-01), Kramp et al.
patent: 4116664 (1978-09-01), Jones
patent: 4266011 (1981-05-01), Jan

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