Process for forming dye images
Abstract
Abstract FORMAZAN DYE IMAGE DENSITIES FORMED BY TREATING A PHOTOGRAPHIC METAL IMAGE IN A HYDROPHILIC COLLOID BINDER LAY WITH A TETRAZOLIUM SALT SOLUTION IN THE PRESENCE OF A METAL COMPLEXING LIGAND ARE ENHANCED BY THE PRESENCE IN SAID BINDER LAYER OF AT LEAST ONE TERPOLYMER CONTAINING ABOUT 0.1% BY WEIGHT OF ACTIVE METHYLENE GROUPS IN ALIPHATIC SIDE CHAINS IN WHICH THE METHYLENE GROUPS ARE USUALLY SEPARATED FROM THE MAIN POLYMER CHAIN BY AT LEAST THREE CARBON ATOMS, THE TERPOLYMERS BEING FORMED OF AN ALKYL ACYLATE OR AN ALKYL METHACRYLATE AS ONE MONOMER, EITHER A SALT OF A SULFOALKYL ACRYLATE, A SALT OF A SULFOALKYL ALKACRYLATE, ACRYLIC ACID (OR SALT) OR AN ALKACRYLIC ACID (OR SALT) AS A SECOND MONOMER, AND EITHER A CYANOACETOXYALKYL ACRYLATE, A CYANOACETOXYALKY ALKACRYLATE, AN ACYL SUBSTITUTED ACETOXYALKYL ACRYLATE OR AN ACYL SUBSTITUTED ACETOXYALKYL ALKACRYLATE AS THE THIRD MONOMER.
Inventors
- 👤 Vernon L Bissonette
- 👤 Jerry B Miller
Bibliographic Details
Claims Analysis
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