Silver halide color photographic material

Details Silver halide color photographic material Silver halide color photographic material

1996-09-12

1997-08-26

Wright, Lee C.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Identified radiation sensitive composition with color...

430558, 430955, 430957, G03C 7305, G03C 738

Patent

active

056609752

ABSTRACT:
A silver halide color photographic material comprising at least one layer provided on a support, said layer containing a coupler represented by the following formula (1): ##STR1## wherein Z.sub.a represents --C(R.sub.3).dbd. or --N.dbd.; Z.sub.b represents --C(R.sub.3).dbd. when Z.sub.a is --N.dbd. or Z.sub.b represents --N.dbd. when Z.sub.a is --C(R.sub.3).dbd.; R.sub.1 and R.sub.2 each represents an electron attractive group having a Hammett substituent constant .sigma..sub.p of 0.2 to 1.0; R.sub.3 represents a substituent; T represents a linking group which can be released from the coupler by coupling thereof with an oxidized color developing agent and can subsequently release an ED moiety; n represents 0 or 1; the ED moiety represents a group which can be released from the coupler or T to undergo a redox reaction with the oxidized color developing agent; and G represents a hydrogen atom or a blocking group which can be eliminated from the coupler on photographic processing, whereby good hues and high image quality can be attained without any sensitivity decrease.

REFERENCES:
patent: 4818668 (1989-04-01), Ichijima et al.
patent: 5128237 (1992-07-01), Kimura et al.
patent: 5256526 (1993-10-01), Suzuki et al.
patent: 5270153 (1993-12-01), Suzuki et al.
patent: 5384236 (1995-01-01), Metsuoka et al.

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