Radiation imagery chemistry: process – composition – or product th – Transfer procedure between image and image layer – image... – Diffusion transfer process – element – or identified image...
Patent
1983-10-11
1986-08-05
Miller, Edward A.
Radiation imagery chemistry: process, composition, or product th
Transfer procedure between image and image layer, image...
Diffusion transfer process, element, or identified image...
430223, 430351, 430559, 430562, G03C 140, G03C 554
Patent
active
H00000981
ABSTRACT:
A heat-developable color photographic material comprising a support having thereon at least a light-sensitive silver halide, a hydrophilic binder and a dye releasing redox compound represented by the following general formula (I): ##STR1## wherein G represents --OR.sup.1 or --NHR.sup.2 ; R.sup.1 represents a hydrogen atom or a hydrolyzable group; R.sup.2 represents a hydrogen atom or an alkyl group containing from 1 to 50 carbon atoms; Z represents an image forming dye group; A represents an atomic group necessary for forming an aromatic ring; Ball represents an organic immobilizing group on the aromatic ring, and when two Ball groups exist, they may be the same or different from each other; m represents an integer of 1 or 2; X represents a divalent organic group containing from 1 to 8 atoms and X with a nucleophilic group (Nu) is capable of forming a 5- to 12-membered ring together with an electrophilic center (the carbon atom marked with *) which is formed by oxidation; Nu represents a nucleophilic group; and n represents an integer of 1 or 2.
The heat-developable color photographic material can easily provide a clear and stable color image by imagewise exposure to light and a heat-development procedure. A method of forming a color image using the heat-developable color photographic material is also disclosed.
REFERENCES:
patent: 4358532 (1982-11-01), Koyama et al.
patent: 4430415 (1984-02-01), Aono et al.
Fujita Shinsaku
Hara Hiroshi
Koyama Koichi
Naito Hideki
Sato Kozo
Fuji Photo Film Co. , Ltd.
Miller Edward A.
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