Production of transfer images by the silver salt diffusion process

Claim 1

A PROCESS FOR THE PRODUCTION OF PHOTOGRAPHIC TRANSFER IMAGES BY THE SILVER SALT DIFFUSION PROCESS WHICH COMPRISES EXPOSING A PHOTOGRAPHIC SHEET MATERIAL HAVING A LIGHT-SENSITIVE SILVER HALIDE EMULSION LAYER AND COATED THEREON AN UNSENSITIZED COLLOID LAYER, THE COLLOID OF WHICH CONSISTS ESSENTIALLY OF A MEMBER OF THE GROUP CONSISTING OF A WATER-SOLUBLE STARCH ETHER AND CARBOXYMETHYL CELLULOSE, SAID COLLOID LAYER HAVING INCORPORATED THEREIN A POLYETHYLENE GLYCOL AND PHYSICAL DEVELOPMENT NUCLEI, DEVELOPING THE SAID EXPOSED PHOTOGRAPHIC MATERIAL IN A SILVER HALIDE DEVELOPING SOLUTION IN THE PRESENCE OF A SILVER HALIDE SOLVENT TO PRODUCE A NEGATIVE SILVER IMAGE IN THE SAID SILVER HALIDE EMULSION LAYER AND A POSITIVE SILVER IMAGE IN THE SAID COLLOID LAYER, AND TRANSFERRING AT LEAST A STRATUM OF THE SAID COLLOID LAYER CONTAINING THE SAID POSITIVE SILVER IMAGE ONTO A SEPARATE SUPPORT.