Stable multi-part photographic color developing composition and method of use

A multi-part (two-part or three-part) color developing kit includes aqueous solutions containing sulfite ions and a color developing agent. An α-ketocarboxylic acid or salt thereof, such as pyruvic acid or a salt thereof, is included in one or more of the aqueous solutions. These solutions can be co...

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Bibliographische Detailangaben
Hauptverfasser:	HAYE, SHIRLEYANNE, ELIZABETH, HUSTON, JANET MARIE
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	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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Beschreibung
Zusammenfassung:	A multi-part (two-part or three-part) color developing kit includes aqueous solutions containing sulfite ions and a color developing agent. An α-ketocarboxylic acid or salt thereof, such as pyruvic acid or a salt thereof, is included in one or more of the aqueous solutions. These solutions can be combined, with or without dilution, to provide a color developing composition that can be used to process color photographic materials.