5,5{40 ,6,6{40 -Tetrahydroxy-3,3,3{40 ,3{40 -tetramethyl-bis-spirohydrindene auxiliary developers

摘要

A photographic diffusion transfer color process comprising image exposing a photographic material having at least a silver halide emulsion layer and a layer containing a dye developer adjacent the silver halide emulsion layer and then treating the exposed silver halide emulsion layer with an alkaline solution to immobilize the dye developer at the exposed area while the dye developer at the unexposed area of the silver halide emulsion layer is transferred by diffusion to an image-receiving material, wherein the alkaline solution treatment is conducted in the presence of 5,5',6,6'-tetrahydroxy-3,3,3',3'-tetramethyl-bis-1,1'-spirohydrindene.