Prevention of cyan dye fading in color developed prints and films

Claim 1

IN THE PROCESS OF PRODUCING STABILIZED COLOR PHOTOGRAPHIC IMAGES IN A PHOTOGRAPHIC MATERIAL COMPRISING A SUPPORT AND AT LEAST ONE LIGHT-SENSITIVE SILVER HALIDE EMULSION CONTAINING A PHENOLIC COLOR FORMER FAST TO DIFFUSION, CAPABLE OF FORMING, UPON DEVELOPMENT WITH A PRIMARY AMINO DEVELOPER, A CYAN QUINONIMINE DYE IMAGE BY EXPOSING SAID MULTILAYER MATERIAL, COLOR DEVELOPING, BLEACHING, FIXING, WASHING AND DRYING THE SAME, THE IMPROVEMENT WHICH COMPRISES AVOIDING CYAN DYE FADING BY RINSING THE SAID MATERIAL AT ANY POINT AFTER COLOR DEVELOPMENT WITH AN AQUEOUS SOLUTION CONTAINING ABOUT 2.0 G. TO ABOUT 30.0 G. PER LITER OF A WATER-SOLUBLE SALT OF A METAL SELECTED FROM THE CLASS CONSISTING OF CALCIUM, STRONTIUM, MAGNESIUM, ZINC AND CADMIUM, IN COMBINATION WITH A CATIONIC WATER-SOLUBLE HIGH MOLECULAR WEIGHT NITROGENOUS RESIN OBTAINED BY THE CONDENSATION IN THE PRESENCE OF AMMONIUM CHLORIDE OF FORMALDEHYDE WITH A MEMBER SELECTED FROM THE CLASS CONSISTING OF DICYANDIAMIDE, DICYANDIAMIDINE, GUANIDINE, BIURET, AND BIGUANIDE WHEREIN THE CONCENTRATION OF SAID HIGH MOLECULAR WEIGHT NITROGENOUS RESIN VARIES FROM 3.5 G. TO ABOUT 35.0 G. PER LITER.