Silver halide photothermographic element, composition and proces

Details Silver halide photothermographic element, composition and proces Silver halide photothermographic element, composition and proces

1978-02-13

1980-06-10

Brown, J. Travis

Radiation imagery chemistry: process, composition, or product th

Thermographic process

Heat applied after imaging

96 67, 961141, 430155, 430 67, G03C 102, G03C 530

Patent

active

042071089

ABSTRACT:
Improved photographic speed is provided in a photothermographic material comprising in reactive association (a) photosensitive silver halide, (b) an oxidation-reduction image-forming combination comprising (i) a long-chain fatty acid silver salt oxidizing agent, with (ii) a reducing agent, (c) a synthetic polymeric binder, and (d) a photographic speed increasing concentration of a certain non-dye, thione speed increasing addendum. A developed image having increased photographic speed can be provided in the described photographic material, after imagewise exposure, by heating the element to moderately elevated temperatures.

REFERENCES:
patent: 3669672 (1972-06-01), Shiba et al.
patent: 3761279 (1973-09-01), deMauriac
patent: 3776738 (1973-12-01), Ohlschlager et al.
patent: 3785822 (1974-01-01), Overman
patent: 3801321 (1974-04-01), Evans et al.
patent: 3839041 (1974-10-01), Hiller
patent: 3870523 (1975-03-01), Ikenoue et al.
patent: 3874946 (1975-04-01), Costa et al.
patent: 3895948 (1975-07-01), Shiba et al.
patent: 3909271 (1975-09-01), Ikenoue et al.
patent: 4001020 (1977-01-01), Hayashi et al.
patent: 4021240 (1977-05-01), Cerquone et al.
Research Disclosure, Feb. 1977, pp. 38-39, Item 15442-Hiller.

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