Novel photographic products and processes

Abstract

Abstract ING THE PH OF THE PROCESSING COMPOSITION TO A SECOND PH AT WHICH THE DYE IMAGE-FORMING MATERIAL IS SUBSTANTIALLY NONDIFFUSIBLE SUBSEQUENT TO SUBSTANTIAL DYE TRANSFER IMAGE FORMATION IN THE RECEPTION LAYER. THE FILM UNITS ADDITIONALLY INCLUDE, IN COMBINATION, MEANS FOR INTERPOSING, SUBSEQUENT TO PHOTOEXPOSURE OF THE SILVER HALIDE LAYER, INTERMEDIATE THE SILVER HALIDE LAYER AND THE RECEPTION LAYER, AN OPACIFYING AGENT IN A CONCENTRATION EFFECTIVE TO MASK DYE IMAGE-PROVIDING MATERIAL ASSOCIATED WITH THE PHOTOSENSITIVE LAYER OF PREFERABLY COMPRISING AN INORGANIC REFLECTING PIGMENT DISPERSION CONTAINING AT LEAST ONE OPTICAL FILTER AGENT IN A CONCENTRATION EFFECTIVE TO PROVIDE A LAYER EXHIBITING OPTICAL TRANSMISSION DENSITY >$6.0 DENSITY UNITS WITH RESPECT TO INCIDENT RADIATION ACTINIC TO THE PHOTOSENSITIVE SILVER HALIDE LAYER AND OPTICAL REFLECTION DENSITY <$1.0 DENSITY UNITS WITH RESPECT TO REFLECTED VISIBLE RADIATION, AND A PROCESSING COMPOSITION POSSESSING A FIRST PH AT WHICH THE DYE IMAGE-FORMING MATERIAL IS DIFFUSIBLE DURING PORCESSING, AND MEANS FOR REDUC- THE PRESENT INVENTION RELATES TO PHOTOGRAPHY AND, MORE PARTICULARLY, TO REFLECTION TYPE DIFFUSION TRANSFER PROCESS PHOTOGRAPHIC FILM UNITS WHICH COMPRISE A COMPOSITE PHOTOSENSITIVE ELEMENT ADAPTED TO PROVIDE, BY DIFFUSIN TRANSFER PHOTOGRAPHIC PROCESSING, SELECTIVE INTEGRAL NEGATIVE AND POSITIVE IMAGE RECORDATION OF INCIDENT ACTINIC RADIATION AS A FUNCTION OF THE POINT-TO-POINT DEGREE OF PHOTOSENSITIVE ELEMENT EXPOSURE, WHICH ELEMENT INCLUDES A PLURALITY OF SEQUENTIAL LAYERS INCLUDING A DIMENSIONALLY STABLE LAYER PREFERABLY OPAQUE TO INCIDENT ACTINIC RADIATION; A PHOTOSENSITIVE SILVER HALIDE LAYER HAVING ASSOCIATED THEREWITH DYE IMAGE-FORMING MATERIAL WHICH IS DIFFUSIBLE DURING PROCESSING AS A FUNCTION OF THE POINT-TO-POINT DEGREE OF SILVER HALIDE LAYER EXPOSURE TO INCIDENT ACTINIC RADIATION; A LAYER ADAPTED TO RECEIVE IMAGE-FORMING MATERIAL DIFFUSING THERETO; AND A DIMENSIONALLY STABLE LAYER TRANSPARENT TO INCIDENT RADIATION.

Inventors

• 👤 Edwin H Land

Bibliographic Details