Radiation imagery chemistry: process – composition – or product th – Color imaging process – Using identified radiation sensitive composition in the...
Patent
1985-07-10
1989-07-04
Schilling, Richard L.
Radiation imagery chemistry: process, composition, or product th
Color imaging process
Using identified radiation sensitive composition in the...
430430, 430460, 430461, C03C 700, C03C 742
Patent
active
048450170
ABSTRACT:
A method for processing a silver halide color photographic light-sensitive material by subjecting an exposed silver halide color photographic light-sensitive material to color development, then to bleaching and fixing or then to bleach-fixing, which method comprises using a ferric ion complex salt as a bleaching agent in the bleaching or bleach-fixing and incorporating at least one compound represented by general formula (I) described below or a salt thereof: ##STR1## wherein R.sup.1 and R.sup.2 each represents a hydrogen atom, a hydroxy group, a substituted or unsubstituted amino group, a carboxy group, a sulfo group or a substituted or unsubstituted alkyl group; R.sup.3 and R.sup.4 each represents a hydrogen atom, a substituted or unsubstituted alkyl group or a substituted or unsubstituted acyl group or R.sup.3 and R.sup.4 may be bonded to each other to form a ring; M represents a hydrogen atom, an alkali metal atom or an ammonium group; and n represents an integer of 2 to 5 in a bleaching bath or bleach-fixing bath or in a prebath of the bleaching bath or bleach-fixing bath.
The method of the present invention does not produce poisonous materials which are harmful to the environment and provides an excellent high speed bleaching process without harming other photographic properties.
REFERENCES:
patent: 4144068 (1979-03-01), Ishibashi et al.
patent: 4163669 (1979-08-01), Kanada et al.
patent: 4508816 (1985-04-01), Yamamuro et al.
patent: 4546070 (1985-10-01), Kishimoto et al.
patent: 4756918 (1988-07-01), Ueda et al.
patent: 4762774 (1988-08-01), Kishimoto et al.
Kishimoto Shinzo
Ohno Shigeru
Baxter Janet C.
Fuji Photo Film Co. , Ltd.
Schilling Richard L.
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