Multilayer silver halide color photographic light-sensitive material containing a novel combination of couplers
AssigneeFuji Photo Film Co., Ltd.
InventorsMakoto Umemoto, Kozo Aoki
Life of this patent
Estimating the term…
Abstract
A silver halide color photographic light-sensitive material comprising a support having formed thereon at least one red-sensitive emulsion layer, at least one green-sensitive emulsion layer, and at least one blue-sensitive emulsion layer is disclosed. The material cotains a novel combination of cyan, magenta, and yellow couplers and has improved color forming properties, color reproducibility, and image preservability.
Claims29
A silver halide color photographic light-sensitive material comprising a support having provided thereon at least one red-sensitive emulsion layer, at least one green-sensitive emulsion layer and at least one blue-sensitive emulsion layer, wherein a coupler represented by the formula (I), a coupler represented by the formula (III), and a coupler represented by the formula (IV) are present in light-sensitive emulsion layers having sensitivities to different colors:
- ##STR26## wherein R.sub.1 represents a substituted or unsubstituted aliphatic group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclic group;
- R.sub.2 represents an alkyl group having 2 or more carbon atoms or an alkyl group substituted with an aryl group, an alkoxy group, an aryloxy group, an acylamino group, an alkylthio group, an arylthio group, an alkylsulfonyl group, an arylsulfonyl group, or an arylseleno group;
- R.sub.3 represents a hydrogen atom, a halogen atom, or a substituted or unsubstituted alkyl, aryl, alkoxy, or acylamino group;
- Y.sub.1 represents a hydrogen atom or a group releasable upon coupling with an oxidized product of a developing agent;
- R.sub.2, R.sub.3 or Y.sub.1 may form a dimer or a higher polymer;
- ##STR27## wherein R.sub.7 represents a hydrogen atom or an organic residual group bonded by carbon, oxygen, sulfur, nitrogen, phosphorus or silicon;
- Y.sub.3 represents a hydrogen atom or a group releasable upon coupling with an oxidized product of a developing agent;
- Z.sub.a, Z.sub.b and Z.sub.c each represents a methine group, a substituted methine group, .dbd.N--, or --NH--;
- and R.sub.7, Y.sub.3 or the methine group as represented by Z.sub.a, Z.sub.b or Z.sub.c may form a dimer or a higher polymer;
- ##STR28## wherein R.sub.8 represents a substituted or unsubstituted N-phenylcarbamoyl group;
- Y.sub.4 represents a hydrogen atom or a group releasable upon coupling with an oxidized product of a developing agent;
- and R.sub.8 or Y.sub.4 may form a dimer or a higher polymer, wherein the coupler represented by the formula (I) is present in a red-sensitive emulsion layer, the coupler represented by the formula (III) is present in a green-sensitive emulsion layer, and the coupler represented by the formula (IV) is present in a blue-sensitive emulsion layer.
Dependencies are inferred from the claim text.