Radiation imagery chemistry: process – composition – or product th – Color imaging process – Using identified radiation sensitive composition in the...
Patent
1989-02-21
1991-04-02
Bowers, Jr., Charles L.
Radiation imagery chemistry: process, composition, or product th
Color imaging process
Using identified radiation sensitive composition in the...
430393, 430544, G03C 716
Patent
active
050046772
ABSTRACT:
A method for processing a silver halide color photographic light-sensitive material is disclosed, which comprises, after color development of an imagewise exposed silver halide color photographic material, processing the developed silver halide color photographic material with a processing solution having a bleaching ability, wherein the silver halide color photographic light-sensitive material contains at least one DIR coupler having at its coupling active position a group which forms a development inhibitor or precursor thereof when released from the coupling active position of the coupler upon a coupling reaction with an oxidation product of an aromatic primary amine color developing agent which is formed upon a color development reaction, and further decomposes into a compound having substantially no effect on photographic properties once discharged into a color developing solution wherein the half-life period of the development inhibitor or precursor thereof at pH 10.0 is not more than 4 hours, and wherein the processing solution having a bleaching ability contains, as bleaching agents, a ferric complex salt of 1,3-diaminopropanetetraacetic acid and has a pH of from 5.8 to 1.5.
REFERENCES:
patent: 3893858 (1975-07-01), Wabnitz
patent: 4477563 (1981-04-01), Ichijima et al.
patent: 4798784 (1989-01-01), Kishimoto et al.
patent: 4812389 (1989-03-01), Sakanoue et al.
Bowers Jr. Charles L.
Fuji Photo Film Co. , Ltd.
Neville Thomas R.
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