Masking process for multilayer photographic color film

Claim 1

THE METHOD OF PRODUCING MASKING IMAGES IN A MULTILAYER COLOR MATERIAL CONTAINING SUPERIMPOSED SILVER HALIDE EMULSION LAYERS, THE INNERMOST OF WHICH IS SENSITIZED FOR RED AND CONTAINS AS A NON-DIFFUSING COLOR FORMER AN AHYDROXY NAPHTHOIC ACID AMIDE, THE INTERMEDIATE LAYER OF WHICH IS SENSITIZED FOR GREEN AND CONTAINS AS A NONDIFFUSING COLOR FORMER A PYRAZOLONE, AND THE OUTERMOST LAYER OF WHICH IS SENSITIZED FOR BLUE AND CONTAINS AS A NON-DIFFUSING COLOR FORMER AN ACYLACETANILIDE, THE COLOR FORMER IN A LAYER OTHER THAN THE BLUE SENSITIVE LAYER HAVING A REPLACEABLE SUBSTITUENT IN THE COUPLING POSITION WHICH COMPRISES EXPOSING THE MATERIAL, COLOR DEVELOPING THE SAME IN A PRIMARY AROMATIC AMINO DEVELOPER TO FORM IN EACH EMULSION LAYER IN SITU WITH THE SILVER IMAGE THEREIN A DYE IMAGE COMPLEMENTARY IN COLOR TO THAT FOR WHICH THE EMULSION LAYER IS SENSITIZED, BLEACHING AND FIXING THE MATERIAL, AND SUBJECTING IT TO THE ACTION OF A DIAZONIUM SALT SOLUTION BUFFERED TO A PH OF BELOW 6 TO PRECLUDE REACTION OF THE DIAZONIUM SALT WITH UNUSED ACYLACETANILIDE COUPLER AND TO FORM AN AZO DYE PRINTING MASK IN THAT LAYER OTHER THAN THE ONE IN WHICH THE COLOR FORMER CONTAINS A REPLACEABLE SUBSTITUENT IN THE COUPLING POSITION.

Claim 2

THE METHOD OF PRODUCING MASKING IMAGES IN A MULTILAYER COLOR MATERIAL CONTAINING SUPERIMPOSED SILVER HALIDE EMULSION LAYERS, THE INNERMOST OF WHICH IS SENSITIZED FOR RED AND CONTAINS AS A NON-DIFFUSING COLOR FORMER AN AHYDROXY NAPHTHOIC ACID AMIDE, THE INTERMEDIATE LAYER OF WHICH IS SENSITIZED FOR GREEN AND CONTAINS AS A NONDIFFUSING COLOR FORMER A PYRAZOLONE, AND THE OUTERMOST LAYER OF WHICH IS SENSITIZED FOR BLUE AND CONTAINS AS A NON-DIFFUSING COLOR FORMER AN ACYLACETANILIDE, THE COLOR FORMER IN A LAYER OTHER THAN THE BLUE SENSITIVE LAYER HAVING A REPLACEABLE SUBSTITUENT IN THE COUPLING POSITION WHICH COMPRISES EXPOSING THE MATERIAL, COLOR DEVELOPING THE SAME IN A PRIMARY AROMATIC AMINO DEVELOPER TO FORM IN EACH EMULSION LAYER IN SITU WITH THE SILVER IMAGE THEREIN A DYE IMAGE COMPLEMENTARY IN COLOR TO THAT FOR WHICH THE EMULSION LAYER IS SENSITIZED, BLEACHING AND FIXING THE MATERIAL, AND SUBJECTING IT TO THE ACTION OF A DIAZONIUM SALT SOLUTION BUFFERED TO A PH OF BELOW 6 TO PRECLUDE REACTION OF THE DIAZONIUM SALT WITH UNUSED ACYLACETANILIDE COUPLER AND TO FORM AN AZO DYE PRINTING MASK IN THAT LAYER OTHER THAN THE ONE IN WHICH THE COLOR FORMER CONTAINS A REPLACEABLE SUBSTITUENT IN THE COUPLING POSITION.