EP 0034793 B1 19850529 - METHOD OF PROCESSING PHOTOGRAPHIC SILVER DYE BLEACHING MATERIALS, COMPOSITIONS SUITABLE FOR IT AND THEIR PREPARATION FROM CONCENTRATES OR PARTIAL CONCENTRATES, THE CONCENTRATES AND PARTIAL CONCENTRATES
Title (en)
METHOD OF PROCESSING PHOTOGRAPHIC SILVER DYE BLEACHING MATERIALS, COMPOSITIONS SUITABLE FOR IT AND THEIR PREPARATION FROM CONCENTRATES OR PARTIAL CONCENTRATES, THE CONCENTRATES AND PARTIAL CONCENTRATES
Publication
Application
Priority
CH 143580 A 19800222
Abstract (en)
[origin: US4366232A] 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).
IPC 1-7
IPC 8 full level
G03C 7/02 (2006.01); G03C 5/44 (2006.01); G03C 7/28 (2006.01)
CPC (source: EP US)
Designated contracting state (EPC)
BE CH DE FR GB IT LI
DOCDB simple family (publication)
EP 0131970 A1 19850123; EP 0131970 B1 19861217; DE 3170675 D1 19850704; EP 0034793 A2 19810902; EP 0034793 A3 19821020; EP 0034793 B1 19850529; JP H0133820 B2 19890714; JP S56132340 A 19811016; US 4366232 A 19821228; US 4879413 A 19891107
DOCDB simple family (application)
EP 84108556 A 19810217; DE 3170675 T 19810217; EP 81101124 A 19810217; JP 2369881 A 19810221; US 23538881 A 19810217; US 24463288 A 19880912