Silver halide emulsion containing colored magenta coupler for photography
AssigneeKonishiroku Photo Industry Co., Ltd.
InventorsHiroyuki Imamura, Shui Sato, Tamotsu Kojima, Takaya Endo
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Abstract
A coloured magenta coupler for photography is disclosed which is represented by the following general formula: ##STR1## wherein R is substituted phenyl, R.sub.1 and R.sub.2 individually stand for hydrogen, halogen, hydroxyl, alkyl, alkoxy or acylamino, with the proviso that one of R.sub.1 and R.sub.2 is hydroxyl but that both are not hydroxyl simultaneously, R.sub.3 is hydrogen, halogen, alkyl, nitro or acylamino and R.sub.4 stands for hydrogen, halogen or a monovalent organic residue.
Claims3
A photo-sensitive silver halide color photographic material having a support and a photo-sensitive silver halide emulsion layer coated thereon, comprising a colored magenta coupler represented by the following general formula:
- ##STR5## wherein R is phenyl having a substituent or substituents selected from chlorine, alkyl, alkoxy and acylamino;
- R.sub.1 and R.sub.2 are individually hydrogen, halogen, hydroxyl, alkyl, alkoxy or acylamino provided that one of R.sub.1 and R.sub.2 is hydroxyl and that the other is not hydroxyl;
- R.sub.3 is hydrogen, halogen, alkyl, alkoxy, nitro or acylamino;
- and R.sub.4 is hydrogen, halogen or a monovalent organic residue selected from alkoxy, acylamino, carbamoyl, sulfamoyl, alkylsuccinimido, alkoxycarbamido, alkoxycarboalkylamino, aralkoxycarboalkylamino, alkylaminocarboalkylamino, arylaminocarboalkylamino, aralkylaminocarboalkylamino, or nitro.
A color photographic material comprising a support having thereon at least one silver halide emulsion layer containing a colored coupler of the formula:
- ##STR6## wherein R.sub.1 is hydrogen or alkyl;
- R.sub.2 is phenyl substituted with chlorine, alkoxy or acylamino;
- R.sub.3 is chlorine or alkoxy, and R.sub.4 is a moiety containing a hydrophobic diffusion resisting group.
Dependencies are inferred from the claim text.