EP 1061414 A1 20001220 - Developer composition for use in the processing of light-sensitive silver halide photographic materials
Title (en)
Developer composition for use in the processing of light-sensitive silver halide photographic materials
Title (de)
Entwicklerzusammensetzung zur Verarbeitung photographischer lichtempfindlicher Silberhalogenidmaterialien
Title (fr)
Composition développatrice pour le traitement de matériaux photographiques à l'halogénure d'argent sensibles à la lumière
Publication
Application
Priority
- EP 00201853 A 20000524
- EP 99201892 A 19990614
Abstract (en)
A black-and-white silver halide developer composition has been disclosed comprising, besides one or more developing agent(s), agent(s) preventing oxidation thereof and agent(s) providing pH buffering, at least one silver complexing agent, characterized in that said silver complexing agent has a silver complexing stability ratio of at least 70 % and, besides said silver complexing agent, at least one agent preventing silver dissolution characterized in that said agent preventing silver dissolution, if present in an amount of 50 mg/l of developer, makes silver content of the developer decrease in an amount of more than 50 % versus in the absence thereof, without loss in speed in an amount of more than 0.10 log Exposure after processing in said developer composition.
IPC 1-7
IPC 8 full level
G03C 5/305 (2006.01); G03C 5/30 (2006.01)
CPC (source: EP)
G03C 5/305 (2013.01); G03C 5/30 (2013.01); G03C 5/3035 (2013.01); G03C 5/3053 (2013.01); G03C 2005/3007 (2013.01); G03C 2200/34 (2013.01); G03C 2200/40 (2013.01)
Citation (search report)
- [X] DE 1909743 A1 19690918 - EASTMAN KODAK CO
- [Y] JP S62183455 A 19870811 - CHUGAI SHASHIN YAKUHIN
- [Y] FR 2421407 A1 19791026 - CIBA GEIGY AG [CH]
- [Y] DE 1547737 A1 19700618 - EASTMAN KODAK CO
- [Y] DE 2321401 A1 19731115 - FUJI PHOTO FILM CO LTD
- [Y] DE 2803199 A1 19780803 - KONISHIROKU PHOTO IND
- [Y] EP 0032456 A1 19810722 - EASTMAN KODAK CO [US]
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
DOCDB simple family (application)
EP 00201853 A 20000524