Radiation imagery chemistry: process – composition – or product th – Color imaging process – Intensifying
Patent
1994-07-15
1995-11-14
Bowers, Jr., Charles L.
Radiation imagery chemistry: process, composition, or product th
Color imaging process
Intensifying
430414, 430399, 430469, 430943, 354336, G03C 7407, G03D 1302
Patent
active
054665620
ABSTRACT:
A method of processing an imagewise exposed photographic silver halide colour material by a redox amplification method in which the colour material is treated with a colour developing agent in the presence of an oxidant
in which a processor is used which comprises means for applying a relatively small volume of processing solution to an imagewise exposed silver halide material and in which the relatively small volume of solution is supplied from a reservoir of relatively large volume and, while processing, the processing solution being used is isolatable from said reservoir and,
wherein either a colour developer solution without oxidant or an oxidant solution without colour developing agent is held in the reservoir and
wherein the additional oxidant (or colour developing agent) respectively needed for amplification is introduced into the processing solution while it is isolated from said reservoir and
wherein the used developer/amplifier so-formed is discarded into said reservoir after use where any unused introduced oxidant (or colour developing agent) is destroyed by a compound present in the reservoir.
REFERENCES:
patent: 3674490 (1972-07-01), Matejec
patent: 3765891 (1973-10-01), Travis
patent: 4613223 (1986-09-01), Cherry et al.
patent: 4954425 (1990-09-01), Iwano
patent: 5260184 (1993-11-01), Marsden et al.
Bowers Jr. Charles L.
Eastman Kodak Company
Huff Mark F.
Tucker J. Lanny
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