| abstract |
A copy material with a support, at least one red-sensitive, at least one cyan coupler containing, at least one green-sensitive, at least one magenta coupler and at least one blue-sensitive, at least one yellow coupler silver halide emulsion layer, characterized in that the red-sensitive layer contains at least one oil former, the cyan coupler of the formula corresponds to what R 1 represents a hydrogen atom or an alkyl group, R 2 is an alkyl, aryl or hetaryl group, R 3 is an alkyl or aryl group, R 4 is an alkyl, alkenyl, alkoxy, aryloxy, acyloxy, acylamino, sulfonyloxy, sulfamoylamino, sulfonamido, ureido, hydroxycarbonyl, hydroxycarbonylamino, carbamoyl, alkylthio, arylthio, alkylamino or Arylamino group or a hydrogen atom and Z represents a hydrogen atom or a group which can be split off under the conditions of chromogenic development, and the weight ratio of oil former to cyan coupler is less than 1: 1, is characterized by excellent color rendering. |