Stabilization of organic substrate materials including photographic dye images against the action of light
AssigneeFuji Photo Film Co., Ltd.
InventorsHiroshi Hara, Kotaro Nakamura, Yoshiaki Suzuki
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AssigneeFuji Photo Film Co., Ltd.
InventorsHiroshi Hara, Kotaro Nakamura, Yoshiaki Suzuki
Estimating the term…
Organic substrate materials having absorption maxima between 300 and 800 nm can be stabilized against the action of light by the presence of at least one compound represented by either of the following general formula (I) or (II): ##STR1## where M represents a metal atom selected from the group comprising Cu, Co, Ni, Pd and Pt; R.sup.1, R.sup.2, R.sup.3 and R.sup.4, may be the same or different and each represents a hydrogen atom, a halogen atom, cyano group, an alkyl group, an aryl group, a cycloalkyl group, or a heterocyclic ring, each of the latter four groups being bonded directly or via a divalent connecting group to the corresponding carbon atom of the benzene ring. Alternatively, R.sup.1 and R.sup.2, R.sup.2 and R.sup.3, or R.sup.3 and R.sup.4, may combine to represent the non-metallic atoms necessary to complete a 6-membered ring. R.sup.5 and R.sup.6, may be the same or different and each represents a hydrogen atom, an alkyl group, an aryl group, an acyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, an alkylsulfonyl group or an arylsulfonyl group.
An element stabilized against the action of light comprising the combination of
A color photographic material comprising at least one layer containing a photographic dye image, said dye of said dye image having an absorption maximum in the wavelength range between about 300 nm and about 800 nm, wherein said layer or an adjacent layer thereto contains at least one complex compound represented by the formula (I) or the formula (II) ##STR15## wherein N is a metal selected from the group consisting of Cu, Co, Ni, Pd and Pt;
Dependencies are inferred from the claim text.