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US 5,686,229 AGranted
Method of processing a color photographic silver halide material
AssigneeEastman Kodak Company
InventorPeter J. Twist
Life of this patent
Estimating the term…
Abstract
A photographic material is processed by fixing during or after development, followed by redox amplification while monitoring image formation and adjusting to treatment time or composition of the redox amplifying solution, to obtain desired results.
Claims12
A method of processing an imagewise exposed photographic silver halide color material comprising two or more silver halide layers sensitized to different regions of the visible spectrum having associated therewith appropriate dye image forming couplers,
- said method comprising during or after a development step that produces a silver image, fixing said material using a fixing solution comprising a fixing agent that does not poison the catalytic properties of the silver image to an extent that is more severe than a 30 g/l solution of sodium sulfite, and subsequently forming a dye image by redox amplification while monitoring the extent of image formation with visible light and making adjustments to the time of treatment or composition of the redox amplifying solution in order to obtain results of a predetermined quality.
Dependencies are inferred from the claim text.