Silver halide color photographic light-sensitive material

Details Silver halide color photographic light-sensitive material Silver halide color photographic light-sensitive material

1989-07-17

1990-05-29

Schilling, Richard L.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Identified radiation sensitive composition with color...

430544, 430387, G03C 108

Patent

active

049295403

ABSTRACT:
A silver halide color photographic light-sensitive material comprising a support and at least one silver halide photographic emulsion layer on the support, said emulsion layer containing a 5-pyrazolone coupler having a coupling eliminable group of the following general formula (I) at the coupling site thereof: ##STR1## wherein L.sub.1 represents a substituted or an unsubstituted methylene or ethylene group; l represents 0 or 1; m represents 0 or an integer from 1 to 3; R.sub.1 represents a hydrogen atom, or a substituted or an unsubstituted alkyl, aryl or heterocyclic group; Y represents ##STR2## Q represents a single bond or nonmetal atoms necessary to complete a 5- to 8-membered ring together with ##STR3## said 5- to 8-membered ring may further have a saturated or an unsaturated ring condensed thereto; R.sub.2 represents a halogen atom, an alkyl group; an aryl group, an alkoxy group, an aryloxy group, an alkylthio group, an arylthio group, an alkylsulfonyl group, an arylsulfonyl group, an acylamino group, an alkoxycarbonylamino group, a sulfonamide group, a sulfamoyl group, an ureido group, an alkoxycarbonyl group, an aryloxycarbonyl group, an acyl group, a cyano group, a trifluoromethyl group, an amino group, an N-alkylamino group, an N-arylamino group, an N,N-dialkylamino group, a diacylamino group, an imido group or a carbamoyl group, and when m represents 2 or 3, R.sub.2 groups may be the same or different; R.sub.2 ' represents a hydrogen atom, or has the same meaning as R.sub.2 and two R.sub.2 ' groups may be linked to form a 5- to 7-membered saturated or unsaturated ring; and --Y Q may be a substituted or an unsubstituted carbon-carbon or carbon-nitrogen double bond. The silver halide photographic material provides a magenta image having a high maximum density and light fastness.

REFERENCES:
patent: 4351897 (1982-09-01), Aoki et al.
patent: 4383027 (1983-05-01), Ishikawa et al.
patent: 4483918 (1984-11-01), Sakai et al.
patent: 4556630 (1985-12-01), Furutachi et al.
patent: 4584266 (1986-04-01), Hirose et al.

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