EP 0223883 B1 19890222 - METHOD FOR DEVELOPING AN EXPOSED PHOTOGRAPHIC SILVER HALIDE EMULSION MATERIAL
Title (en)
METHOD FOR DEVELOPING AN EXPOSED PHOTOGRAPHIC SILVER HALIDE EMULSION MATERIAL
Publication
Application
Priority
EP 85201959 A 19851126
Abstract (en)
[origin: EP0223883A1] A method for developing an exposed photographic silver halide emulsion material with reduced sludge deposition including the step of treating said material with an aqueous alkaline liquid in the presence of (i) a developing agent, (ii) a heterocyclic mercapto compound and (iii) a surface active agent being an anionic alkylphenoxy polyalkyleneoxy phosphate ester surfactant, and wherein the mercapto compound is a heterocyclic mercapto compound corresponding to the following tautomeric general formulae (A) and (B): <CHEM> wherein : Z represents the necessary atoms to close a 5- or 6-membered heterocyclic nitrogen containing ring and includes a hydrocarbon group of at least 7 carbon atoms in straight line.
IPC 1-7
IPC 8 full level
G03C 5/29 (2006.01); G03C 5/26 (2006.01); G03C 5/30 (2006.01); G03C 5/305 (2006.01)
CPC (source: EP)
G03C 5/3053 (2013.01)
Designated contracting state (EPC)
BE CH DE FR GB IT LI NL
DOCDB simple family (publication)
EP 0223883 A1 19870603; EP 0223883 B1 19890222; DE 3568377 D1 19890330; JP H07119972 B2 19951220; JP S62131252 A 19870613
DOCDB simple family (application)
EP 85201959 A 19851126; DE 3568377 T 19851126; JP 28053186 A 19861125