Radiation imagery chemistry: process – composition – or product th – Color imaging process – Using identified radiation sensitive composition in the...
Patent
1989-01-23
1990-08-07
Maples, John S
Radiation imagery chemistry: process, composition, or product th
Color imaging process
Using identified radiation sensitive composition in the...
430380, 430434, 430467, 430468, 430558, G03C 746, G03C 518, G03C 526, G03C 108
Patent
active
H00008095
ABSTRACT:
A method for processing a silver halide color photographic material containing at least one pyrazoloazole magenta coupler represented by general formula (I), which comprises processing the light-sensitive material, after imagewise exposure, with a color developer containing an aromatic primary amine color developing agent and at least one member selected from among hydrazines and hydrazides represented by general formula (II): ##STR1## wherein R.sub.11 represents a hydrogen atom or a substituent, X represents a hydrogen atom or a group capable of being eliminated by a coupling reaction with an oxidation product of an aromatic primary amine developing agent, Za, Zb and Zc each represents a methine group, a substituted methine group, .dbd.N-- or --NH--, provided that one of the Za-Zb bond and the Zb-Zc bond is a double bond and the other is a single bond and, when Zb-Zc is a carbon-to-carbon double bond, it may be a part of an aromatic ring, and a dimer or higher polymer may be formed at R.sub.11 or X, or, when Za, Zb or Zc represents a substituted methine group, a dimer or higher polymer may be formed at the substituted methine group; ##STR2## wherein R.sup.1, R.sup.2 and R.sup.3 each independently represents a hydrogen atom, an alkyl group, an aryl group or a meterocyclic group, R.sup.4 represents a hydrogen atom, a hydroxy group, a hydrazino group, an alkyl group, an aryl group, a heterocyclic group, an alkoxy group, an aryloxy group, a carbamoyl group or an amino group, X.sup.1 represents a divalent group, and n represents 0 to 1, provided that, when n is 0, R.sup.4 represents an alkyl group, an aryl group or a heterocyclic group, and that R.sup.3 and R.sup.4 may together form a heterocyclic ring.
REFERENCES:
patent: 4801521 (1989-01-01), Ohki et al.
Andoh Kazuto
Fujimoto Hiroshi
Ishikawa Takatoshi
Yagihara Morio
Fuji Photo Film Co. , Ltd.
Maples John S
Tucker Philip
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