Photographic color processes which yield either positive or negative silver-transfer images

Abstract

Abstract PHOTOGRAPHIC COLOR ELEMENTS HAVING A SUPPORT COATED ON ONE SIDE WITH AT LEAST ONE LIGHT-SENSITIVE HYDROPHILIC COLLOID LAYER CONTAINING IMAGEWISE-EXPOSED SILVER HALIDE GRAINS AND A NONDIFFUSIBLE COUPLER THAT REACTS WITH OXIDIZED AROMATIC PRIMARY AMINE COLOR DEVELOPING GENT TO FORM A NONDIFFUSIBLE DYE, ARE ADVANTAGEOUSLY PROCESSED BY (1) CONTACTING WITH A HYDROPHILIC COLLOID PROCESSING WEB CONTAINING SILVER PRECIPITATING NUCLEI, AN AROMATIC PRIMARY AMINE COLOR DEVELOPING AGENT, AN ORGANIC AMINE-SO2 ADDITION PRODUCT AND, ALTERNATIVELY, AN ADDITIONAL SILVER HALIDE SOLVENT UNTIL A DYE IMAGE AND SILVER IMAGE ARE FORMED IN THE ELEMENT AND A SILVER IMAGE IS FORMED IN THE PROCESSING WEB, (2) SEPARATING THE PROCESSING WEB FROM THE ELEMENT AND, IF DESIRED, SUBSEQUENTLY TREATING THE ELEMENT TO REMOVE SILVER AND RESIDUAL SILVER HALIDE, PROVIDED THAT THE HYDROPHILIC COLLOID IN THE ELEMENT AND THE HYDROPHILIC COLLOID IN THE PROCESSING WEB ARE EITHER HARDENED DURING MANUFACTURE OR DURING STEP (1) BY A HARDENER IMBIBED IN THE PROCESSING WEB JUST PRIOR TO STEP (1) TO HAVE A RETICULATION TEMPERATURE GREATER THAN 65*C. AND A MELTING POINT GREATER THAN 85*C.

Inventors

• 👤 Judith A Schwan
• 👤 Edward A Smith

Bibliographic Details