Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Two or more radiation-sensitive layers containing other than...
Patent
1980-11-25
1981-10-27
Brown, J. Travis
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Two or more radiation-sensitive layers containing other than...
430554, 430555, 430558, 430551, G03C 176, G03C 140
Patent
active
042974402
ABSTRACT:
A color photographic light-sensitive element is described comprising a support having thereon a silver halide emulsion layer containing therein a 3-anilino-5-pyrazolone magenta color-forming coupler represented by formula (I) ##STR1## wherein X represents a halogen atom or an alkoxy group; Ar represents an aryl group; R.sub.1 represents hydrogen, a halogen atom, an alkyl group, an alkoxy group or an alkylthio group; Y represents a non-metallic atomic group forming a 5-membered or 6-membered ring together with the ##STR2## group, except that Y does not include a carbonyl group; and Z represents hydrogen or a coupling-off group.
The magenta color images obtained after color development processing of the color photographic light-sensitive element have an excellent light-fastness, and the formation of yellow stain in the unexposed areas thereof is prevented.
REFERENCES:
patent: 2311082 (1943-02-01), Porter et al.
patent: 3684514 (1972-08-01), Iwama et al.
patent: 3928044 (1975-12-01), Arai et al.
patent: 3935015 (1976-01-01), Arai et al.
patent: 4220470 (1980-09-01), Furutachi et al.
Aoki Kozo
Furutachi Nobuo
Sawada Satoru
Yabuki Yoshiharu
Brown J. Travis
Fuji Photo Film Co. , Ltd.
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