PHOTOGRAPHIC FIXING COMPOSITION CONTAINING OXADIAZOLE THIONE AND METHOD FOR FAST PHOTOGRAPHIC PROCESSING

PROBLEM TO BE SOLVED: To realize fast processing and to prevent undesirable dye contamination caused by the aggregates of sensitizing dyes by incorporating a thiosulfate fixing agent and a specified oxazole thione or its tautomer and specifying the concentration of the ammonium ion. SOLUTION: This f...

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Bibliographic Details
Main Authors SCHMITTOU ERIC R, FOSTER DAVID GEORGE
Format Patent
LanguageEnglish
Published 08.09.2000
Edition7
Subjects
AUXILIARY PROCESSES IN PHOTOGRAPHY
CINEMATOGRAPHY
ELECTROGRAPHY
HOLOGRAPHY
PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR,STEREO-PHOTOGRAPHIC PROCESSES
PHOTOGRAPHY
PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES
PHYSICS
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Summary:PROBLEM TO BE SOLVED: To realize fast processing and to prevent undesirable dye contamination caused by the aggregates of sensitizing dyes by incorporating a thiosulfate fixing agent and a specified oxazole thione or its tautomer and specifying the concentration of the ammonium ion. SOLUTION: This fixing composition contains at least 0.5 mol/L thiosulfate fixing agent and further contains at least 0.001 mol/L oxadiazole thione expressed by the formula or its tautomer. The concentration of the ammonium ion is controlled to at least 50 mol.% of the total cations in the composition. In the formula, R is a hydrogen atom or monovalent substituent having <=12 atoms excluding hydrogen. This fixing composition can be used for the photographic process in which a color photographic silver halide element exposed to an image and color-developed is brought into contact with the fixing composition for <=60 sec.
Bibliography:Application Number: JP20000043561