Light-sensitive element for the diffusion transfer process

Details Light-sensitive element for the diffusion transfer process Light-sensitive element for the diffusion transfer process

1990-01-08

1991-06-04

Schilling, Richard L.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Identified radiation sensitive composition with color...

430222, 430223, G03C 554, G03C 726

Patent

active

050213342

ABSTRACT:
A light-sensitive element for the diffusion transfer process which comprises a support having thereon a light-sensitive silver halide emulsion layer having associated therewith a yellow dye providing compound represented by the following general formula (I): ##STR1## wherein CAR represents a carrier moiety which is capable of releasing a diffusible dye from the compound in correspondence or counter-correspondence to development under alkaline conditions; Link represents a group connecting CAR with a diffusible dye; m represents 0 or 1; the dotted lines mean that at least one of the dotted lines is a bond; R.sup.1 represents a hydrogen atom, an alkyl group, an aryl group, an alkoxy group, an aryloxy group, an alkoxycarbonyl group, an aryloxycarbonyl group or a carbamoyl group; R.sup.2 represents an alkyl group or an aryl group; and R.sup.3 represents an aryl group excepting an aryl group having the Hammett's .sigma..sub.p value less than 0.01.
The yellow dye providing compound has a dye moiety whose transferability is high and whose hue is excellent and provides a stable yellow dye image which does not substantially change hue over a wide pH range.

REFERENCES:
patent: 4043752 (1977-08-01), Kilmurry et al.
patent: 4461827 (1984-07-01), Bergthaller et al.
patent: 4775613 (1988-10-01), Hirai et al.
patent: 4783396 (1988-11-01), Nakamora et al.

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