Method of improving the light resistance of a dye image

Details Method of improving the light resistance of a dye image Method of improving the light resistance of a dye image

1984-08-23

1985-09-10

Brown, J. Travis

Radiation imagery chemistry: process, composition, or product th

Color imaging process

Stabilizing

430386, 430551, 430554, 430555, 430558, G03C 740, G03C 726

Patent

active

045406537

ABSTRACT:
A photographic element comprising a support having thereon a layer containing a dye that is formed by the reaction of an anilino-type magenta coupler with the oxidized product of a color developing agent, the said layer comprising an organic solvent having a dielectric constant of not more than 6.5 and at least one of metallic complexes having the following Formula [I], Formula [II] or Formula [III]: ##STR1## In Formulas [I], [II] and [III], M is a nickel atom, copper atom, cobalt atom, palladium atom or platinum atom; X.sub.1 and X.sub.2 each is an oxygen atom, sulfur atom or --NR.sub.5 -- (wherein R.sub.5 is a hydrogen atom, an alkyl, aryl or hydroxyl radical); X.sub.3 is a hydroxyl or mercapto radical; Y is an oxygen atom or sulfur atom; R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each is a hydrogen atom or a halogen atom or a cyano radical, or an alkyl, aryl, cycloalkyl or heterocyclic radical which each is bonded directly or through a divalent combining radical to a carbon atom; and at least one of the R.sub.1 -R.sub.2 and R.sub.3 -R.sub.4 combinations is allowed to form a 5- or 6-member cyclic ring together with the carbon atoms which are bonded with each other; and Z is a compound coordinateable to M.

REFERENCES:
patent: 4245018 (1981-01-01), Hara et al.
patent: 4326022 (1982-04-01), Ito et al.
patent: 4346165 (1982-08-01), Sawada et al.
patent: 4369243 (1983-01-01), Credner et al.
patent: 4407940 (1983-10-01), Nakamura et al.

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