METHOD OF PRODUCING REVERSAL COLOR IMAGES

METHOD OF PRODUCING REVERSAL COLOR IMAGES of the Invention Reversal color images are produced in photographic elements which employ a leuco dye comprising the reaction product of a color forming coupler and a N,N-dialkyl-p-phenylene-diamine stabilized against aerial oxidation by an electronegative g...

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Bibliographische Detailangaben
Hauptverfasser:	SATURNO, PATRICK H, FAUL, WILLIAM H
Format:	Patent
Sprache:	eng ; fre
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:	METHOD OF PRODUCING REVERSAL COLOR IMAGES of the Invention Reversal color images are produced in photographic elements which employ a leuco dye comprising the reaction product of a color forming coupler and a N,N-dialkyl-p-phenylene-diamine stabilized against aerial oxidation by an electronegative group attached to the benzene ring. A preferred process involves the use of black-and-white developers and comprises (1) treating the exposed photographic element with a noncross-oxidizing balck-and-white developing composition, (2) fogging the residual silver halide, (3) treating the element with a cross-oxidizing black-and-white developing composition, and (4) removing silver and silver halide by a bleach-fix treatment.