PHOTOGRAPHIC ELEMENTS CONTAINING COLOR-FORMING COUPLERS HAVING AN INHIBITING EFFECT UPON THE REACTIVITY OF COMPETING COUPLERS

摘要

Color photographic elements containing silver halide and incorporated color-forming materials are described. These elements contain at least two differentially light-sensitive emulsion layers, the overlying layer being sensitive to the relatively shorter wavelengths and containing at least one yellow dye-forming color coupler which has the unusual ability to inhibit the reaction of competing couplers (such as citrazinic acid, for example) when competing couplers are used in color developing solutions in the conventional manner. Use of these couplers in the overlying (color) layer of multi- layer color photographic elements makes it possible to produce colored images having improved graininess. P PCouplers having this unusual capability are selected from those having the structures:PPWHEREIN R.sub.1, R.sub. 2 and R. sub.3 are as defined herein.