Color formation

Claim 1

A DIFFUSION TRANSFER PROCESS COMPRISING THE STEPS OF EXPOSING TO A COLORED PHOTOGRAPHIC SUBJECT A FILM COMPRISING A SUPPORT, A RED-SENSITIVE SILVER HALIDE EMULSION LAYER, AND AN ORTHOCHROMATIC SILVER HALIDE EMULSION LAYER SUPERPOSED OVER SAID RED-SENSITIVE EMULSION LAYER, SAID REDSENSITIVE SILVER HALIDE EMULSION LAYER CONTAINING AN IMMOBILE, NONDIFFUSIBLE COLOR COUPLER, AND SAID ORTHOCHROMATIC SILVER HALIDE EMULSION LAYER HAVING ASSOCIATED THEREWITH A DIFFUSIBEL RED DYE SO POSITIONED AS TO HAVE SUBSTANTIALLY NO EFFECT UPON THE EXPOSURE OF SAID ORTHOCHROMATIC EMULSION, SAID IMMOBILE COLOR COUPLER AND SAID RED DYE BEING CAPABLE OF COUPLING WITH THE OXIDATION PRODUCT OF A SILVER HALIDE DEVELOPING AGENT, SAID RED-SENSITIVE EMULSION LAYER BEING EXPOSED THROUGH A FILTER ABSORBING BLUE INTERPOSED BETWEEN SAID ORTHOCHROMATIC AND RED-SENSITIVE LAYERS TO FORM IN SAID RED-SENSITIVE EMULSION LAYER A LATENT RECORD OF THE WARM COLOR CONTENT OF SAID PHOTOGRAPHIC SUBJECT, SAID ORTHOCHROMATIC LAYER BEING EXPOSED IN THE ABSENCE OF A COLOR FILTER TO FROM IN SAID ORTHOCHROMATIC LAYER A LATENT RECORD OF THE COOL COLOR CONTENT OF SAID SUBJECT; APPLYING A PROCESSING LIQUID TO SAID FILM TO PROVIDE THEREIN AN ALKALINE SOLUTION IN WHICH SAID RED DYE IS SOLUBLE AND COMPRISING A SILVER HALIDE SOLVENT AND A SILVER HALIDE DEVELOPING AGENT WHICH SILVER HALIDE DEVELOPING AGENT, UPON OXIDATION, FORMS AN OXIDATION PRODUCT CAPABLE OF COUPLING WITH SAID COLOR COUPLER AND WITH SAID RED DYE, AND THEREBY DEVELOPING SAID EXPOSED AREAS OF SAID REDSENSITIVE LAYER AND SAID ORTHOCHROMATIC LAYER; COUPLING SAID IMMOBILE COLOR COUPLER IN SAID RED-SENSITIVE EMULSION LAYER WITH SAID OXIDATION PRODUCT OF SAID SILVER HALIDE DEVELOPING AGENT FORMED BY DEVELOPMENT OF SAID RED-SENSITIVE EMULSION TO PREVENT ENTRANCE OF SAID LAST-MENTIONED OXIDATION PRODUCT INTO SAID ORTHOCHROMATIC LAYER; FORMING IN SAID RED-SENSITIVE LAYER A SOLUBLE SILVER COMPLEX OF SAID SILVER HALIDE SOLVENT WITH UNREDUCEDD SILVER HALIDE IN UNEXPOSED AREAS OF SAID RED-SENSITIVE LAYER, DIFFUSING SAID SOLUBLE SILVER COMPLEX THROUGH SAID ORTHOCHROMATIC LAYER TO A SUPERPOSED SILVER IMAGE-RECEIVING LAYER, FORMING THEREAT A NEUTRAL-TONED POSITIVE SILVER IMAGE REPRESENTATIVE OF THE WARM COLOR CONTENT OF SAID PHOTOGRAPHIC SUBJECT; FORMING IN SAID ORTHOCHROMATIC LAYER, AS A RESULT OF SAID DEVELOPMENT OF SID EXPOSED SILVER HALIDE IN SAID ORTHOCHROMATIC LAYER, AN OXIDATION PRODUCT OF SAID SILVER HALIDE DEVELOPING AGENT, AND COUPLING SAID OXIDATION PRODUCT WITH SAID RED DYE THEREBY INSOLUBILIZING SAID RED DYE IN SAID EXPOSED AREAS, DIFFUSING SAID SOLUBLE RED DYE FROM UNEXPOSED AREAS OF SAID ORTHOCHROMATIC LAYER TO A SUPERPOSED IMAGE-RECEIVING LAYER TO FORM THEREAT, IN PROPER REGISTRATION WITH SAID NEUTRAL-TONED SILVER IMAGE, A POSITIVE RED DYE IMAGE REPRESENTATIVE OF THE COOL COLOR CONTENT OF THE PHOTOGRAPHIC SUBJECT.