Photothermographic element
AssigneeFuji Photo Film Co., Ltd.
InventorsTadashi Ito, Makoto Ishihara
Life of this patent
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Abstract
In a photothermographic element comprising a non-photosensitive silver salt, a photosensitive silver halide, and a binder on a support, a latex of a polymer having a Tg of -30.degree. C. to 40.degree. C. constitutes at least 50% by weight of the binder in an image forming layer containing the silver halide, and the image forming layer or a layer disposed adjacent thereto or both contain a nucleating agent and a diphosphorus pentoxide-derived compound. The element produces a low fog, high contrast image.
Claims6
A photothermographic element comprising a non-photosensitive silver salt, a photosensitive silver halide, and a binder on a support, wherein:
- a latex of a polymer having a glass transition temperature of -30.degree. C. to 40.degree. C. constitutes at least 50% by weight of the binder in an image forming layer containing the photosensitive silver halide, and
- the image forming layer or a layer disposed adjacent thereto or both contain a nucleating agent and a compound selected from the group consisting of (a) acids resulting from hydration of diphosphorus pentoxide and (b) salts of said acids.
Dependencies are inferred from the claim text.