Internal support for diffusion transfer element

Claim 2

The photographic element of claim 1 wherein said dye image-receiving layer and said light-reflective layer are on one side of said support and said photosensitive layer is on the other side of said support.

Claim 3

The photographic element of claim 3 wherein said polymeric material is a hydrophilic polycarbonate.

Claim 4

The photographic element of claim 1 wherein the photosensitive portion comprises red-, green- and blue-sensitized silver halide emulsion layers having cyan, magenta and yellow dye image-providing materials, respectively, associated therewith.

Claim 5

A photographic element comprising a porous, polymeric support having pore diameters ranging from about 0.5 to about 12 microns and a porosity of from about 1 to about 25 percent having on one side thereof in the order recited: a. a substantially opaque, light-reflective layer; and b. a dye image-receiving layer; and having on the other side thereof in the order recited: aa. a red-sensitive silver halide emulsion layer having a dye image-providing material associated therewith capable of reacting with oxidized developing agent to produce a diffusible cyan dye; bb. a green-sensitive silver halide emulsion layer having a dye image-providing material associated therewith capable of reacting with oxidized developing agent to produce a diffusible magenta dye; and cc. a blue-sensitive silver halide emulsion layer having a dye image-providing material associated therewith capable of reacting with oxidized developing agent to produce a diffusible yellow dye.

Claim 6

A photographic film unit which is adapted to be processed by passing said unit between a pair of juxtaposed pressure-applying members comprising: I. a photosensitive element comprising a support having thereon a dye image-receiving layer, a substantially opaque, light-reflective layer, and at least one photosensitive silver halide emulsion layer having a dye image-providing material associated therewith capable of reacting with oxidized developing agent to produce a dye, said support being a porous, polymeric material with pore diameters ranging from about 0.5 to about 12 microns and a porosity of from about 1 to about 25 percent, all of said layers not being located on the same side of said support; II. a transparent sheet superposed over said silver halide emulsion layer of said photosensitive element; and III. a ruptuRable container containing an alkaline processing composition having therein an opacifying agent, said rupturable container being positioned transverse a leading edge of said photosensitive element so that a compressive force applied to said container by said pressure-applying members will effect a discharge of the container''s contents between said transparent sheet and said underlying silver halide emulsion layer of said photosensitive element adjacent thereto.

Claim 7

The photographic film unit of claim 7 wherein said polymeric material is a hydrophilic polycarbonate.

Claim 8

The photographic film unit of claim 7 wherein said dye image-receiving layer and said light-reflective layer are on one side of said support and said photosensitive layer is on the other side of said support.

Claim 9

The photographic film unit of claim 7 wherein the photosensitive portion of said photosensitive element comprises red-, green- and blue-sensitized silver halide emulsion layers having cyan, magenta and yellow dye image-providing materials, respectively, associated therewith.

Claim 10

A photographic film unit which is adapted to be processed by passing said unit between a pair of juxtaposed pressure-applying members, comprising: I. a photosensitive element comprising a porous, polymeric support having pore diameters ranging from about 0.5 to about 12 microns and a porosity of from about 1 to about 25 percent having on one side thereof in the order recited: a. a substantially opaque, light-reflective layer; and b. a dye image-receiving layer; and having on the other side thereof in the order recited: aa. a red-sensitive silver halide emulsion layer having a dye image-providing material associated therewith capable of reacting with oxidized developing agent to produce a diffusible cyan dye; bb. a green-sensitive silver halide emulsion layer having a dye image-providing material associated therewith capable of reacting with oxidized developing agent to produce a diffusible magenta dye; and cc. a blue-sensitive silver halide emulsion layer having a dye image-providing material associated therewith capable of reacting with oxidized developing agent to produce a diffusible yellow dye; II. a transparent sheet superposed over said blue-sensitive silver halide emulsion layer of said photosensitive element; and III. a rupturable container containing an alkaline processing composition having therein an opacifying agent, said rupturable container being positioned transverse a leading edge of said photosensitive element so that a compressive force applied to said container by said pressure-applying members will effect a discharge of the container''s contents between said transparent sheet and said blue-sensitive silver halide emulsion layer of said photosensitive element adjacent thereto.