Photographic silver halide emulsion, photographic light-sensitive material using same emulsion, and method of processing same light-sensitive material
AssigneeFuji Photo Film Co., Ltd.
InventorKatsuhisa Ohzeki
Life of this patent
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Abstract
A photographic silver halide emulsion is disclosed, comprising tabular grains: the tabular grains having a silver chloride content of at least 95 mole %, an aspect ratio of at least 2 and a distance between the main planes of 0.13 μm or less; wherein the tabular grains occupy at least 90%, based on total projected area, of the total silver halide grains in the emulsion and have a variation coefficient of 20% or less in the distance between the main planes; and a silver halide photographic material comprising a support having thereon the silver halide emulsion and a method of development-processing the silver halide photographic material are disclosed.
Claims13
A photographic silver halide emulsion comprising tabular grains:
- said tabular grains having a silver chloride content of at least 95 mole %, an aspect ratio of at least 2 and a distance between main planes of 0.13 μm or less;
- wherein said tabular grains occupy at least 90%, based on the total projected area, of the total silver halide grains in said emulsion and have a variation coefficient of 20% or less in the distance between the main planes.
A silver halide photographic material comprising a support having thereon at least two light-sensitive layers, wherein the light-sensitive layer arranged farthest from the support comprises a silver halide emulsion comprising tabular grains:
- said tabular grains having a silver chloride content of at least 95 mole %, an aspect ratio of at least 2 and a distance between main planes of 0.13 μm or less;
- wherein said tabular grains occupy at least 90%, based on the total projected area, of the total silver halide grains in said emulsion and have a variation coefficient of 20% or less in the distance between the main planes.
A silver halide photographic material comprising a support having thereon at least one silver halide emulsion layer, wherein at least one of said emulsion layers comprises a silver halide emulsion comprising tabular grains:
- said tabular grains having a silver chloride content of at least 95 mole %, an aspect ratio of at least 2 and a distance between main planes of 0.13 μm or less;
- wherein said tabular grains occupy at least 90%, based on the total projected area, of the total silver halide grains in said emulsion and have a variation coefficient of 20% or less in the distance between the main planes.
A method of development-processing a silver halide photographic material, wherein the photographic material processed is a silver halide photographic material comprising a support having thereon at least two light-sensitive layers, wherein the light-sensitive layer arranged farthest from the support comprises a silver halide emulsion comprising tabular grains:
- said tabular grains having a silver chloride content of at least 95 mole %, an aspect ratio of at least 2 and a distance between main planes of 0.13 μm or less;
- wherein said tabular grains occupy at least 90%, based on the total projected area, of the total silver halide grains in said emulsion and have a variation coefficient of 20% or less in the distance between the main planes, and the dry-to-dry processing time is 60 sec. or less.
A method of development-processing a silver halide photographic material, wherein the photographic material processed is a silver halide photographic material comprising a support having thereon at least one silver halide emulsion layer, wherein at least one of said emulsion layers comprises a silver halide emulsion comprising tabular grains:
- said tabular grains having a silver chloride content of at least 95 mole %, an aspect ratio of at least 2 and a distance between main planes of 0.13 μm or less;
- wherein said tabular grains occupy at least 90%, based on the total projected area, of the total silver halide grains in said emulsion and have a variation coefficient of 20% or less in the distance between the main planes, and the dry-to-dry processing time is 60 sec. or less.
Dependencies are inferred from the claim text.