Silver halide photographic material which contains an iron dopant and substantially no silver iodide
AssigneeFuji Photo Film Co., Ltd.
InventorMasahiro Asami
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Abstract
There is disclosed a silver halide photographic material having at least one photosensitive emulsion layer containing silver halide emulsion of surface latent image type. The silver halide emulsion comprises high-silver-chloride emulsion grains that have a localized phase containing iron ions in a limited amount. According to the disclosure a silver halide photographic material can be attained that is excellent in rapid processability and high in sensitivity and contrast.
Claims11
A silver halide photographic material comprising a base and on said base at least one photosensitive emulsion layer containing silver halide emulsion of a surface latent image type that contains silver halide grains of silver chloride or silver chlorobromide made up of 90 mol % or more of silver chloride substantially free from silver chloride, said silver halide grains containing iron ions in an amount of 10.sup.-7 to 10.sup.-3 mol per mol of the silver halide wherein said silver halide grains comprise a core and a surface layer that amounts to 50% or less of the grain volume and the iron ions are supplied together with a supply of an aqueous silver salt solution and an aqueous halide solution for forming the surface layer so that the concentration of iron ions in the surface layer is then times or more the concentration of iron ions in the core.
Dependencies are inferred from the claim text.