Bleaching bath

Details Bleaching bath Bleaching bath

1999-05-25

2000-03-21

Le, Hoa Van

Radiation imagery chemistry: process, composition, or product th

Nonradiation sensitive image processing compositions or...

Bleach or intensification

430393, 430430, 430943, G03C 742

Patent

active

060401222

ABSTRACT:
A bleaching bath for processing photographic silver halide materials with hydrogen peroxide as the active substance, characterised in that it contains at least one organic compound having a sulfinic acid function and a further functional group with free electron pairs, is distinguished by improved bleaching action and makes it possible to achieve continuous processing of hard to bleach photographic materials having an elevated silver content.

REFERENCES:
patent: 4301236 (1981-11-01), Idota et al.
patent: 5006456 (1991-04-01), Morigaki et al.

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