Direct positive silver halide photographic light-sensitive material
AssigneeKonica Corporation
InventorTsuyoshi Mitsuhashi
Life of this patent
Estimating the term…
Abstract
A direct positive silver halide photographic light-sensitive material which is improved in gradation and suitable for rapid processing comprises a support having thereon a silver halide emulsion layer containing surface-fogged type direct positive silver halide grains, wherein said direct positive silver halide emulsion layer comprises two or more silver halide emulsions substantially different in sensitivity and/or gradation; the ratio of the total area of (111) face to and total surface area of grains in said emulsions is not less than 50%; and the average silver iodide content of grains in said emulsions is not more than 5 mol%.
Claims5
A direct positive silver halide photographic light-sensitive material comprising a support having thereon a silver halide emulsion layer containing surface-fogged type direct positive silver halide grains, wherein said direct positive silver halide emulsion layer comprises two or more silver halide emulsions substantially different in sensitivity and/or gradation;
- the ratio of the total area of (111) face to the total surface area of grains in said emulsions is not less than 50%;
- the average silver iodide content of grains in said emulsions is not more than 5 mol %;
- and wherein said photographic material is processed with an automatic processing machine for an overall processing time of more than 20 seconds and less than 60 seconds.
Dependencies are inferred from the claim text.