Photograhic film assembly comprising light intercepting elements located behind pressure plate

A film assemblage adapted to produce a plurality of diffusion transfer color prints, which contains (A) a plurality of film units and (B) a photographic film container insertable in and removable from a photographic exposure apparatus for enclosing said plurality of film units and including a forward wall having a rectangular opening to permit exposure of the forwardmost film unit and a withdrawal opening permitting withdrawal of said film unit following exposure thereof within said container;

• said film unit (A) containing:
• a. a light-sensitive sheet comprising a transparent and flexible support having thereon, in sequence, at least one silver halide emulsion layer and a light-intercepting layer of a hydrophilic colloid containing a light-absorbent in an amount necessary to prevent upon exposure fog formation in any light-sensitive sheet lying behind the light-sensitive sheet of the forwardmost film unit,
• b. an image-receiving sheet comprising a transparent support having thereon an image-receiving layer capable of fixing a diffusible image-forming substance imagewise released from the light-sensitive sheet as a result of imagewise exposure and development.
• c. a light-intercepting sheet for covering the support surface of an exposed light-sensitive sheet, which is substantially the same size as that of the light-sensitive sheet and has an absorbency necessary to protect the light-sensitive layer from ambient light outside the exposure apparatus and
• d. a container, rupturable by pressure-applying members, which retains processing solution capable of causing development of the light-sensitive layer and the movement of an image-forming substance and which is positioned such that the contents can be released between the light-sensitive layer and the image-receiving layer;
• said light-sensitive sheet, said image-receiving sheet and said light-intercepting sheet are connected to each other through a leader sheet in such a manner that an exposed light-sensitive sheet can be interposed between the connected image-receiving sheet and light-intercepting sheet by pulling said leader sheet, thereby unifying the three sheets in a face-to-face relationship and, said processing solution container is positioned on the leader sheet such that the contents of said container can be released between the light-sensitive sheet and the image-receiving sheet;
• said photographic film container (B) containing:
• e. a pressure plate which maintains the plane of the superposed light-sensitive e sheets parallel to the plane of the exposure opening, with the transparent support being directed toward the exposure opening,
• f. a cavity between the pressure plate and the rear wall of said container for retaining the image-receiving sheet and the light-intercepting sheet, said image-receiving sheet and said light-intercepting sheet residing in said cavity prior to the exposure of said light-sensitive sheet.