Electrolytic color development

Claim 1

A PROCESS OF FORMING A POSITIVE MULTICOLOR PHOTOGAPHIC REPRODUCTION WHICH COMPRISES EXPOSING TO THE COLOR ASPECTS OF A SUBJECT A PHOTOGRAPHIC MATERIAL COMPRISING A SUITABLE SUPPORT CARRYING AT LEAST ONE LIGHT SENSITIVE PHOTOGRAPHIC SILVER HALIDE EMULSION LAYER, CONTAINING A COUPLER COMPOUND CAPABLE OF FORMING A DYE WHEN REACTED WITH THE OXIDATION PRODUCTS OF A PRIMARY AROMATIC AMINO SILVER HALIDE DEVELOPING AGENT, AND SAID COUPLER COUMPOUND BEING CHARACTERIZED BY ELATIVELY HIGH DIFFUSIBILITY AT ELEVATED PH, DEVELOPING THE EXPOSED EMULSION LAYERS IN THE PRESENCE OF SAID DEVELOPING AGENT AT A PH BELOW 12.5, TO FORM NON-DIFFUSIBLE DYE IMAGES IN THOSE AREAS CORRESPONDING TO LIGHT-EXPOSURE, TRANSFERRING THE DIFFUSIBLE INVISIBLE POSITIVE IMAGE OF COLOR COUPLER BY IMBIBITION AT AN ELEVATED PH ABOVE 12.5 TO A RECEIVING LAYER HAVING THERIN A PRIMARY AROMATIC AMINO SILVER HALIDE DEVELOPING AGENT, APPLYING A RELATIVELY LOW VOLTAGE ELELCTRICAL POTENTIAL TO THE TOTAL MOIST SURFACE OF SAID RECEIVING LAYER, THE POTENTIAL OF WHICH IS SUFFICIENT TO BRING ABOUT ELECTROLYTIC OXIDATION OF THE DEVELOPING AGENT TO FORM OXIDIZED DEVELOPING AGENT WHICH REACTS WITH THE POSITIVE IMAGE OF DIFFUSING COLOR FORMER TO PRODUCE A POSITIVE DYE IMAGE CORRESPONDING TO THE COLOR SPECTS OF THE SUBJECT.