Silver halide emulsion and production process thereof
AssigneeFuji Photo Film Co., Ltd.
InventorsMitsuo Saitou, Satoshi Aiba, Sumito Yamada, Eiichi Okutsu
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Abstract
A silver halide emulsion comprises at least a dispersion medium, water and a silver halide grain, wherein grains occupying from 40 to 100% of the total projected area of said gains have an AgI content of 85 to 100 mol %, a single kind of outer shape except for size and the equivalent-circle projected diameter of from 0.002 to 20 μm.
Claims7
A heat-developable light-sensitive material comprising a support having on the same surface thereof a light-sensitive silver halide emulsion, a light-insensitive organic silver salt, a heat developer and a binder, wherein said light-sensitive silver halide emulsion comprises at least a dispersion medium, water and silver halide grains,
- wherein silver halide grains occupying from 40 to 100% of the total projected area of said silver halide grains have an AgI content of 85 to 100 mol %, the outer surface of said silver halide grains has a face having at least one shape selected from the group consisting of a hexagon, a parallelogram and a trapezoid, said silver halide grains having a single kind of outer grain shape, except for size, having an equivalent-circle projected diameter of from 0.002 to 20 μm and having a coefficient of variation in the diameter distribution of the grains of from 0.01 to 0.3.
A heat-developable light-sensitive material comprising a support having on the same surface thereof a light-sensitive silver halide emulsion, a light-insensitive organic silver salt, a heat developer and a binder, wherein said light-sensitive silver halide emulsion comprises wherein at least a dispersion medium, water and silver halide grains,
- wherein silver halide grains occupying from 40 to 100% of the total projected area of said silver halide grains have an AgI content of 85 to 100 mol %, said silver halide grains occupying 40 to 100% of the total projected area have a shape of an elliptic sphere having no flat crystal face and ratio A5 of (length of longest axis)/(length of shortest axis) is from 1.02 to 1.6, and said silver halide grains have an equivalent-circle projected diameter of from 0.002 to 20 μm and have a coefficient of variation in the diameter distribution of the grains of from 0.01 to 0.3.
Dependencies are inferred from the claim text.