Silver halide color photographic photo-sensitive material
AssigneeFuji Photo Film Co., Ltd.
InventorsNaoto Ohshima, Mitsuo Saitou
Life of this patent
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Abstract
In a silver halide color photographic photo-sensitive material comprising a reflective support having thereon photographic structural layers comprising one or more silver halide emulsion layers, pH of a coating of the silver halide color photographic photo-sensitive material ranges from 4.0 to 6.5 and at least one of the silver halide emulsion on layers contains at least one mercapto heterocyclic compound and tabular silver halide grains having {100} planes was main planes and having a silver chloride content of not less than 80 mol %, the silver halide grains containing at least one selected from the group consisting of metal complexes of Fe, Ru, Re, Os, Rh and Ir.
Claims10
A silver halide color photographic photo-sensitive material comprising a reflective support having thereon photographic structural layers comprising one or more silver halide emulsion layers, wherein:
- the pH of the coating of the silver halide color photographic photo-sensitive material ranges from 4.0 to 6.5, and
- at least one of the silver halide color emulsion layers contains at least one mercapto heterocyclic compound and tabular silver halide grains having {100} planes as main planes and having a silver chloride content of 95 mol % or higher, the silver halide grains containing at least one metal complex selected from the group consisting of metal complexes of Fe, Ru, Re, Os, Rh and Ir,
- and further wherein, in a silver halide emulsion layer containing the tabular silver halide grains, 35%-100% of a total projection area of all silver halide emulsion grains is occupied by tabular silver halide grains having an aspect ratio (diameter/thickness) of 1.5 or greater, and the tabular silver halide grains are produced by (i) forming seeds having {100} planes, (ii) ripening the seeds and (iii) growing crystals into tabular forms from the seeds, where the tabular grains so produced have at least one gap phase discontinuous in halogen composition at a central portion thereof, said gap being a difference of 10 to 100 mol % in Cl.sup.- content or Br.sup.- content, wherein the gap phase discontinuous in halogen composition is formed by covering a surface of an AgX.sub.1 nucleus with at least an AgX.sub.2 layer wherein AgX.sub.1 represents a silver halide, and AgX.sub.2 represents AgBr, AgCl, or AgClBr, and X.sub.1 is different from X.sub.2 in Cl.sup.- content or Br.sup.- content by from 10 to 100 mol %, whereby a defect in the gap phase-containing central portion causes anisotropic growth of the grain.
Dependencies are inferred from the claim text.