EP 0569576 B1 19970806 - PHOTOGRAPHIC BLEACH COMPOSITION
Title (en)
PHOTOGRAPHIC BLEACH COMPOSITION
Title (de)
PHOTOGRAPHISCHES BLEICHMITTEL
Title (fr)
COMPOSITIONS PHOTOGRAPHIQUES DE BLANCHIMENT
Publication
Application
Priority
- EP 9202762 W 19921130
- GB 9125687 A 19911203
Abstract (en)
[origin: WO9311459A1] A photographic bleach solution, comprising hydrogen peroxide, or a compound capable of releasing hydrogen peroxide, and in combination two or more sequestering agents for complexing with a transition metal which will inhibit decomposition of the bleach, preferably at a pH from 5.5 to 14; a method of photographic colour processing including a bleach step comprising the addition of such a bleach solution and the use of such a bleach solution is described.
IPC 1-7
IPC 8 full level
G03C 7/42 (2006.01)
CPC (source: EP)
G03C 7/42 (2013.01)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
WO 9311459 A1 19930610; DE 69221471 D1 19970911; DE 69221471 T2 19980319; EP 0569576 A1 19931118; EP 0569576 B1 19970806; GB 9125687 D0 19920129; JP 3266259 B2 20020318; JP H06505573 A 19940623
DOCDB simple family (application)
EP 9202762 W 19921130; DE 69221471 T 19921130; EP 92924624 A 19921130; GB 9125687 A 19911203; JP 50981993 A 19921130