Photographic film unit for producing images in color

Abstract

Abstract A PHOTOGRAPHIC, SELF-DEVELOPING FILM UNIT COMPRISING A PHOTOSENSITIVE LAYERR INCLUDING SELECTIVELY SENSITIZED SILVERR HALIDE EMULSION HAVING ASSOCIATED THEREWITH DYE IMAGEFORMING MATERIALS, ADAPTED TO BE EXPOSED AND PROCESSED TO PRODUCE A COLOR TRANSFER IMAGE. THE FILM UNIT COMPRISES FIRST AND SECOND RECTANGULAR SHEETS SECURED IN FACETO-FACE RELATION AT THEIR LATERAL AND TRAILLING ENDS MARGINS BY A GENERALLY RECTANGULAR BINDING SHEET INCLUDING A MEDIAL RECTANGULAR OPENING SURROUNDED BY LATERAL AND END MARGINAL PORTIONS. THE BINDING SHEET IS SECURED TO THE OUTER SURFACE OF ONE OF THE SHEETS AND THE LATERAL AND END MARGINAL PORTIONS ARE FOLDED AROUND LATERAL AND TRAILING END EDGES OF THE SHEET AND SECURED TO THE OUTER SURFACES OF THE OTHER SHEET. A CONTAINER OF PROCESSING LIQUID IS ATTACHED TO THE LEADING END OF ONE OF THE SHEETS BY A BINDING STRIP SECURED IN OVERLAPPING RELATION TO THE CONTAINER AND LEADING END MARGIN OF THE SHEET. THE FILM UNIT IS ADAPTED TO BE PROCESSED BY ADVANCING IT, CONTAINER FOREMOST, RELATIVE TO AND BETWEEN A PAIR OF JUXTAPOSED PRESSURE-APPLYING MEMBERS WHICH DISCHARGE THE LIQUID CONTENTS OF THE CONTAINER THEREFROM AND DISTRIBUTE THE PROCESSING LIQUID IN A LAYER BETWEEN THE SHEETS FOR PERMEATION INTO THE PHOTOSENSITIVE LAYER. THE EXTERNAL BINDING SHEET FUNCTIONS TO CONTROL THE THICKNESS OF THE LAYER OF LIQUID AND TO PROVIDE PROCESSING LIQUID AT THE EDGES OF THE EXPOSED AREA SUFFICIENT TO INSURE COMPLETE TRANSFER COLOR IMAGE FORMATION TO THE EDGES OF THE AREA IN WHICH THE VISIBLE IMAGE IS DESIRED. THE BINDING STRIP INCLUDES END SECTIONS EXTENDING A SHORT DISTANCE TOWARD THE TRAILING END OF THE FILM UNIT BEYOND THE LEADING EDGE OF THE OPENING IN THE BINDING SHEET FOR SPACING APART THE PRESSURE-APPLYING MEMBERS TO INSURE SPREADING OF SUFFICIENT PROCESSING LIQUID BETWEEN THE SHEETS IN THIS REGION.

Inventors

• 👤 Monaca P La

Bibliographic Details