Thermodevelopable silver halide photographic material and proces

Radiation imagery chemistry: process – composition – or product th – Transfer procedure between image and image layer – image... – Diffusion transfer process – element – or identified image...

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430559, 430561, 430562, 430617, 430619, 430351, 430505, G03C 554, G03C 140, G03C 700

Patent

active

H00004561

ABSTRACT:
A thermodevelopable photographic material is described, comprising a support, at least one photographic silver halide emulsion layer coated thereon, and a dye donating substance capable of forming or releasing a mobile dye in response to, or in inverse response to, the reduction of silver halide in said emulsion to silver by heating, wherein the color of an image formed by the fixing of each of said mobile dyes released by exposure and heating to a dye fixing layer is within the range of a*=10 to -18 and b*=10 to -18 determined from tristimulus values in the 10 degree visual field XYZ system under standard light C.

REFERENCES:
patent: 3531286 (1970-09-01), Renfrew
patent: 3647437 (1972-03-01), Land
patent: 4235957 (1980-11-01), Kohrt et al.
patent: 4439513 (1984-03-01), Sato et al.
patent: 4463079 (1984-07-01), Naito et al.
patent: 4474867 (1984-10-01), Naito et al.
Research Disclosure 17326, pp. 49-51, Sep. 1978.

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