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US 5,071,740 AGranted
Heat developable color photosensitive material
AssigneeKonishiroku Photo Industry Co., Ltd.
InventorsKen Okauchi, Toyoaki Masukawa
Life of this patent
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Abstract
A heat developable color photosensitive material capable of forming color images in a heat development, more particularly, capable of obtaining heat developable color diffusion transfer images substantially high in a maximum density. The heat developable color photosensitive material contains at least two photosensitive layers which are different from each other in color sensitivity and a non-photosensitive interlayer containing particles interposed between the photosensitive layers.
Claims6
A heat developable color photosensitive material comprising
- a support having thereon at least tow photosensitive layers which contain at least
- a photosensitive silver halide,
- a dye-providing substance capable of releasing or forming a diffusible dye in a heat development,
- a reducing agent and
- a binder,
- wherein each photosensitive layer is different from the other in color sensitivity of said photosensitive silver halide and
- an interlayer containing a binder including gelatin and a water soluble polymer, and particles wherein said particles have an average particle size of 0.1 to 0.5 .mu.m, are present in an amount of 5 to 100 percent by weight of the binder in the interlayer, and are in the solid state at a temperature in a heat development and wherein said interlayer has a thickness of 0.01 to 20 .mu.m and is interposed between said at least two photosensitive layer.
4 more elements
Dependencies are inferred from the claim text.