EP 1061413 A1 20001220 - Processing method of light-sensitive silver halide photographic materials showing less tendency to sludge formation.
Title (en)
Processing method of light-sensitive silver halide photographic materials showing less tendency to sludge formation.
Title (de)
Verarbeitungsverfahren für photographische lichtempfindliche Silberhalogenidmaterialien mit verminderter Schlammbildungsneigung
Title (fr)
Procédé de traitement de matériaux photographiques à l'halogénure d'argent sensibles à la lumière ayant tendance réduite de formation de boue
Publication
Application
Priority
- EP 00201852 A 20000524
- EP 99201891 A 19990614
Abstract (en)
A method of processing has been described for a light-sensitive black-and-white silver halide photographic material comprising the distinct steps of developing, fixing, rinsing and drying, wherein during said processing said developer comprises, besides one or more developing agent(s), one or more agent(s) preventing oxidation thereof and agent(s) providing pH buffering in running equilibrium conditions during said processing, at least one agent preventing silver dissolution and at least one silver complexing agent, 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; said silver complexing agent makes silver content of the said developer increase in an amount of more than 1 mg per liter per mmole of said complexing agent.
IPC 1-7
IPC 8 full level
G03C 5/305 (2006.01); G03C 1/047 (2006.01)
CPC (source: EP)
G03C 5/305 (2013.01); G03C 1/047 (2013.01); G03C 2001/0818 (2013.01)
Citation (search report)
- [XY] DE 1909743 A1 19690918 - EASTMAN KODAK CO
- [Y] EP 0032456 A1 19810722 - EASTMAN KODAK CO [US]
- [Y] DE 1547737 A1 19700618 - EASTMAN KODAK CO
- [Y] FR 2421407 A1 19791026 - CIBA GEIGY AG [CH]
- [Y] DE 2321401 A1 19731115 - FUJI PHOTO FILM CO LTD
- [Y] DE 2803199 A1 19780803 - KONISHIROKU PHOTO IND
- [Y] JP S62183455 A 19870811 - CHUGAI SHASHIN YAKUHIN
- [DY] US 5723267 A 19980303 - ITO TADASHI [JP]
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
DOCDB simple family (application)
EP 00201852 A 20000524