Radiation imagery chemistry: process – composition – or product th – Color imaging process – Using identified radiation sensitive composition in the...
Patent
1989-11-29
1990-12-04
Michl, Paul R.
Radiation imagery chemistry: process, composition, or product th
Color imaging process
Using identified radiation sensitive composition in the...
430427, 430428, 430430, 430461, 252 94, 2521861, 134 2, G03C 538, G03C 539, G03C 544
Patent
active
049753568
ABSTRACT:
Improved bleach-accelerating compositions that are especially useful in the reversal color processing of photographic elements are comprised of a bleach-accelerating agent and a dye-stabilizing agent. Formaldehyde precursors function as particularly effective dye-stabilizing agents in such compositions. The bleach-accelerating composition is utilized subsequent to the color developing step and prior to the bleaching step and serves to enhance the effectiveness of the bleaching step and to provide improved dye stability.
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"Stabilized Bleach Accelerator Baths for use in Photographic Processing", C. R. Cappel et al., Research Disclosure, Item 20111, Jan., 1981.
Cullinan Ann M.
Schwartz Paul A.
Doody Patrick A.
Eastman Kodak Company
Lorenzo Alfred P.
Michl Paul R.
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