Image-receiving element with crosslinked hydrophilic polymer containing processing composition

DETAILED DESCRIPTION OF THE INVENTION The present invention is directed to a diffusion transfer photographic film unit and particularly to an image receiving element adapted for use with such a film unit.
The image-receiving element of the present invention is of the type that contains a substantially non-viscous, aqueous alkaline photographic processing composition carried therein.
Upon face-to-face contact, as by lamination, with an exposed diffusion transfer photosensitive element, a quantity of the processing composition contained in the image-receiving element is absorbed by the photosensitive element, thereby initiating development and transfer of the image-forming material to the image-receiving layer.
An image-receiving element containing photographic processing composition must meet a number of severe requirements.
Since the processing composition is alkaline in pH, the materials employed must be stable, in an alkaline environment.
In some instances, the pH may be as high as 12 or more.
The layers of the image-receiving element must contain sufficient dimensional stability to insure the laminate remains intact and must not permit synerisis.
Still further, the materials employed in the image-receiving element must not present a barrier to the diffusing dye image-forming materials.
It has been found that the novel image-receiving element of the present invention possesses superior characteristics compared to prior art materials.
The novel image-receiving element of the present invention may be employed with any diffusion transfer photosensitive element.
In one embodiment, the image-receiving layer may contain silver precipitating nuclei and the processing composition a silver solvent to provide a silver diffusion transfer image.
In another embodiment, the photosensitive element may have dye-image providing material associated with one or more silver halide layers and the image-receiving layer and may be a dye image-receiving layer to provide a monochrome or polychrome dye image.
The support in the image-receiving element may be opaque or transparent