abstract |
Photographic color elements are described wherein one of the emulsion layers comprise a 4-phenylazo-2-pyrazolin-5-one coupler, the phenylazo group of which carries a p-alkoxy group of the formula: -O-Alk-X-R wherein: Alk represents a straight-chain or branched-chain alkylene group, which may carry an aryl substituent, X represents a linking group, and R represents an aryl group. |