Photographic high contrast silver halide material and method of processing
AssigneeEastman Kodak Company
InventorsJulia Pich, Roger H. Piggin, Mark L. Magill
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Abstract
A high contrast photographic material free from nucleating agents comprising a support bearing a silver halide emulsion layer comprising silver halide grains and a hydrophilic colloid having a silver:hydrophilic colloid ratio above 1.9, and containing a density enhancing amine compound in the emulsion layer or an adjacent hydrophilic colloid layer wherein at least 60% of the silver halide grains are spectrally sensitized. A photographic image can be formed from the imagewise exposed material by a method comprising developing the exposed material for a time no longer than 25 seconds at a temperature no greater than 35° C.
Claims5
A method of forming a photographic image from an imagewise exposed high contrast photographic material free from nucleating agents comprising a support bearing a silver halide emulsion layer comprising silver halide grains and a hydrophilic colloid having a silver:hydrophilic colloid ratio above 1.9 wherein at least 60% of said silver halide grains are spectrally sensitized, said method comprising developing said exposed material in the presence of a density enhancing amine compound for a time no longer than 25 seconds at a temperature no greater than 35° C.
Dependencies are inferred from the claim text.