Radiation imagery chemistry: process – composition – or product th – Transfer procedure between image and image layer – image... – Diffusion transfer process – element – or identified image...
Patent
1984-03-29
1985-08-20
Schilling, Richard L.
Radiation imagery chemistry: process, composition, or product th
Transfer procedure between image and image layer, image...
Diffusion transfer process, element, or identified image...
430219, 430372, 430351, 430559, 430607, 430617, 430619, G03C 140, G03C 554, G03C 134
Patent
active
045364664
ABSTRACT:
A method of forming an image comprising heating a light-sensitive material having at least a light-sensitive silver halide, a binder and a dye releasing redoc compound which is capable of reducing the light-sensitive silver halide and is capable of reacting with the light-sensitive silver halide by heating to release a hydrophilic dye on a support, under the condition substantially free from water after or simultaneously with imagewise exposure, in the presence of a compound represented by the general formula (A) described below to form imagewise a mobile dye. ##STR1## wherein R represents an alkyl group, a cycloalkyl group, an aryl group or an aralkyl group; R.sup.1 represents an alkyl group, a cycloalkyl group, an aryl group or an aralkyl group; R.sup.2 represents an alkyl group, an aryl group, an aralkyl group, a halogen atom or a group of R.sup.1 NH; Z represents an atomic group necessary to form a carbon ring condensed to the benzene ring; n represents 0, 1 or 2; m represents 0 or an integer from 1 to 7 and m+n is not more than 7; l represents 0 or 1; and each of R.sup.1 and R.sup.2 may be the same or different when m or n represents 2 or more, respectively.
In accordance with the method of the present invention, a clear color image having a high density can be obtained by a simple procedure and the light-sensitive material has an improved stability during preservation before heat-development procedure and the occurrence of fog and the change in the maximum density are restrained.
A light-sensitive material comprising a support having thereon at least a light sensitive silver halide, a binder, a dye releasing redox compound which is capable of reducing the light sensitive silver halide and is capable of reacting with the light-sensitive silver halide by heating to release a hydrophilic dye and a compound represented by the general formula (A) above is also disclosed.
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patent: 4254216 (1981-03-01), Uchida et al.
patent: 4268621 (1981-05-01), Ogi et al.
patent: 4401754 (1983-08-01), Suzuki et al.
patent: 4430415 (1984-02-01), Aono et al.
patent: 4463079 (1984-07-01), Naito et al.
Aono Toshiaki
Fujita Shinsaku
Sakaguchi Yukihiko
Fuji Photo Film Co. , Ltd.
Schilling Richard L.
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