Process for processing a photographic silver halide material

Details Process for processing a photographic silver halide material Process for processing a photographic silver halide material

1999-05-26

2000-10-24

Le, Hoa Van

Radiation imagery chemistry: process, composition, or product th

Color imaging process

Using identified radiation sensitive composition in the...

430430, 430432, 430943, G03C 742

Patent

active

061365165

ABSTRACT:
A process for processing exposed photographic silver halide materials at least comprising the stages color development, stopping, bleaching and fixing using a bleaching bath with hydrogen peroxide as the active substance, characterized in that the stop bath contains as a buffer agent at least one carboxylic acid of the formulae I to VIII ##STR1## in which R.sub.1 to R.sub.5 mutually independently mean hydrogen, --OH, --COOM, --SO.sub.3 M, --PO(OM).sub.2, an optionally substituted alkyl residue, an optionally substituted aryl residue, an optionally substituted amino residue or a heterocyclic residue and

REFERENCES:
patent: 4201589 (1980-05-01), Sakaguchi et al.
patent: 4301236 (1981-11-01), Idota et al.
patent: 5691118 (1997-11-01), Haye

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