Heat-developable color photosensitive material containing calcium in an amount of at least 2000 ppm based on total binder weight
AssigneeFuji Photo Film Co., Ltd.
InventorYasuo Aotsuka
Life of this patent
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Abstract
In a heat-developable color photosensitive material comprising a photosensitive silver halide, a dye providing compound, and a binder on a support, the content of calcium is controlled to 500 ppm or more based on the total weight of the binder, allowing the use of inexpensive binders. The photosensitive material is cost effective and forms an image with a low fog density (Dmin) and a high image density (Dmax).
Claims14
A heat-developable color photosensitive material comprising at least a photosensitive silver halide, a dye providing compound, a surfactant and a binder on a support,
- said photosensitive material containing calcium in an amount of 2,000 to 10,000 parts by weight per million parts by weight of the total binder,
- wherein the dye providing compound is a silver halide reducing agent which releases a diffusible dye upon reduction of silver halide by the dye providing compound.
A heat-developable color photosensitive material comprising at least a photosensitive silver halide, an organic silver salt, a dye providing compound, a surfactant and a binder on a support,
- said photosensitive material containing calcium in an amount of 2,000 to 10,000 parts by weight per million parts by weight of the total binder,
- wherein the dye providing compound is a silver halide reducing agent or an organic silver salt reducing agent which releases a diffusible dye upon reduction of silver halide or an organic silver salt by the dye providing compound.
Dependencies are inferred from the claim text.