Photographic elements containing new magenta dye-forming couplers
AssigneeEastman Kodak Company
InventorsPhilip T. S. Lau, Louis Joseph Rossi, Stanley Wray Cowan
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Abstract
A photographic element comprises a light sensitive silver halide emulsion layer having associated therewith a magenta coupler represented by formula (I): ##STR1## wherein: R.sub.1 represents a hydrogen atom or an alkyl group; R.sub.2 represents an alkyl group; Ar represents a phenyl or naphthyl group; X represents a substituent and "n" represents an integer of from 1 to 5; and Z represents a hydrogen atom or a group which can be split off by the reaction of the coupler with an oxidized color developing agent. The described naphtholic coupler provides a magenta dye image rather than the cyan dye image common to naphtholic couplers.
Claims18
A negative working multicolor photographic element comprising a support bearing a silver halide emulsion layer sensitive to green light having associated therewith a magenta dye-forming coupler;
- a silver halide emulsion layer sensitive to blue light having associated therewith a yellow dye-forming coupler;
- and a silver halide emulsion layer sensitive to red light having associated therewith a cyan dye-forming coupler;
- wherein the magenta dye forming coupler has formula (I):
- ##STR15## wherein:
- R.sub.1 represents a hydrogen atom or an alkyl group;
- R.sub.2 represents an alkyl group;
- Ar represents a phenyl or naphthyl group;
- X represents a substituent and "n" represents an integer of from 1 to 5;
- and
- Z represents a hydrogen atom or a group which can be split off by the reaction of the coupler with an oxidized color developing agent.
Dependencies are inferred from the claim text.