Cyan image forming method and silver halide color photographic m

Details Cyan image forming method and silver halide color photographic m Cyan image forming method and silver halide color photographic m

1991-11-26

1993-12-14

Wright, Lee C.

Radiation imagery chemistry: process, composition, or product th

Color imaging process

Using identified radiation sensitive composition in the...

430385, 430558, G03C 738

Patent

active

052701530

ABSTRACT:
A silver halide color photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer containing at least one 1H-pyrrolo[2,1-c][1,2,4]triazole cyan coupler represented by the following general formula (I) or (II): ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 each represents a hydrogen atom or a substituent, provided that at least one of R.sub.1 and R.sub.2 is an electron withdrawing group which has a Hammett's substituent constant .sigma.p value of 0.15 or more; R.sub.1 and R.sub.2 may be bonded to form a ring; and X represents a hydrogen atom or a substituent capable of being released upon coupling with an oxidation product of an aromatic primary amine color developing agent; said coupler may form a bis-compound or or a polymer at R.sub.1, R.sub.2, R.sub.3 or X; and a cyan image forming method comprising imagewise exposing a silver halide color photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer and subjecting the exposed photographic material to color development with an aromatic primary amine color dveloping agent at the presence of the above-described 1H-pyrrolo[2,1c][1,2,4]triazole cyan coupler.

REFERENCES:
patent: 4910127 (1990-03-01), Sakaki et al.
patent: 5091297 (1992-02-01), Fukunaga et al.

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