Defensive publication

Abstract

Abstract PHOTOSENSITIVE ELEMENTS ARE DESCRIBED COMPRISING: (A) A NUCLEI LAYER CONTAINING PHYSICAL DEVELOPMENT NUCLEI AND A NONDIFFUSIBLE COUPLER CAPABLE OF REACTING WITH OXIDIZED AROMATIC PRIMARY AMINO COLOR DEVELOPING AGENT TO PRODUCE A DIFFUSIBLE DYE, THE NUCLEI LAYER BEING FREE OF ANY SILVER SALT; AND (B) A PHOTOSENITIVE SILVER HALIDE EMULSION LAYER CONTAINING A DEVELOPMENT INHIBITOR-RELEASING COMPOUND CAPABLE OF REACTING WITH OXIDIZED COLOR DEVELOPING AGENT TO RELEASE A DIFFUSIBLE DEVELOPMENT INHIBITOR. THE PHOTOSENSITIVE ELEMENT IS PROCESSED WITH AN ALKALINE PROCESSING COMPOSITION IN THE PRESENCE OF A COLOR DEVELOPING AGENT AND A SILVER HALIDE SOLVENT. UPON DEVELOPMENT, THE COLOR DEVELOPING AGENT BECOMES OXIDIZED AND REACTS WITH THE DEVELOPMENT INHIBITOR-RELEASING COMPOUND, PREFERABLY A COUPLER TO RELEASE A DIFFUSIBLE DEVELOPMENT INHIBITOR IMAGEWISE. THE REMAINING SILVER HALIDE IN THE EMULSION LAYER CORRESPONDING TO UNEXPOSED AND THUS UNDEVELOPED AREAS FORMS A SOLUBLE SILVER ION COMPLEX WITH THE SILVER HALIDE SOLVENT PRESENT. THE COMPLEX MIGRATES TO THE NUCLEI LAYER WHERE IT IS THEN PHYSICALLY DEVELOPED CAUSING THE DEVELOPING AGENT TO BECOME OXIDIZED. THE XOIDIZED DEVELOPING AGENT THEN REACTS WITH THE NONDIFFUSIBLE COUPLER TO FORM AN IMAGEWISE DISTRIBUTION OF DIFFUSIBLE DYE WHICH TRANSFERS TO A DYE IMAGE-RECEIVING LAYER TO PROVIDE A POSITIVE DYE IMAGE.

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