Color image-forming photographic reversal element with improved interimage effects

Claim 2

A color image-forming silver halide reversal photographic element comprising at least two dye image-forming units, each unit containing at least one photosensitive silver halide layer and a dye image-former, wherein at least one of the dye image-forming units comprises (1) a first silver halide emulsion layer spectrally sensitized to a given region of the spectrum with which is associated a dye-forming coupler and (2) a second halide emulsion layer spectrally sensitized to a different region of the spectrum than the first and containing an interimage effect-forming means comprising a development inhibitor-releasing compound or coupler which, upon color development, forms either a colorless compound or a dye which does not substantially take part in the formation of the image, said second silver halide emulsion layer not having a dye-forming coupler which substantially takes part in the formation of the image.

Claim 3

The reversal photographic material of claim 1 wherein the interimage effect-forming means is a compound releasing a development inhibitor, upon color development, by a redox mechanism.

Claim 4

The reversal photographic material of claim 1 wherein the interimage effect-forming means is present at a coverage of between 5 and 30 percent of the coverage of the dye-forming coupler.

Claim 5

The reversal photographic material of claim 1 which comprises a support coated with (a) a blue-sensitive unit containing (1) an interimage effect-causing layer comprising a green- and/or red-sensitized silver halide photosensitive emulsion layer and a development inhibitor-releasing coupler and (2) an interimage effect-receiving layer comprising a blue-sensitized silver halide photosensitive emulsion layer and a yellow-forming coupler, (b) a green-sensitive unit containing (3) a Carey Lea silver interlayer, (4) an interimage effect-causing layer comprising a red-sensitized silver halide photosensitive emulsion layer and a development inhibitor-releasing coupler, (5) an interlayer and (6) an interimage effect-receiving layer comprising a green-sensitized silver halide photosensitive emulsion layer and a magenta-forming coupler, and (c) a red-sensitive unit containing (7) an interlayer, (8) an interimage effect-causing layer comprising a green-sensitized silver halide photosensitive emulsion layer and a development inhibitor-releasing coupler, (9) an interlayer and (10) an interimage effect-receiving layer comprising a red-sensitized silver halide photosensitive emulsion layer and a cyan-forming coupler.

Claim 6

The reversal photographic material of claim 4 wherein layers 4 and 6 are interchanged and layers 8 and 10 are interchanged.

Claim 7

The reversal photographic material of claim 4 wherein the interlayers contain a scavenger for oxidized development agent.

Claim 8

The reversal photographic material of claim 4 wherein each silver halide photosensitive emulsion is a negative-working emulsion.

Claim 9

The reversal photographic material of claim 7 wherein at least one of the dye image-forming photosensitive emulsion layer is a silver haloiodide emulsion layer.

Claim 10

The reversal photographic material of claim 1 wherein the silver halide emulsion layer spectrally sensitized to a different region of the spectrum which contains said interimage effect-forming means forms the interimage effects during the second development which is the color development.

Claim 11

The reversal photographic material of claim 1 which comprises a support coated with (1) an antiabrasion layer, (2) a layer containing an ultraviolet-absorbing compound, (3) a red-sensitized silver halide photosensitive emulsion layer and a cyan-forming coupler, (4) an interlayer, (5) a blue-sensitized emulsion layer and a development inhibitor-releasing coupler, (6) an interlayer, (7) a green-sensitized silver haloiodide photosensitive emulsion layer and a magenta-forming coupler, (8) an interlayer, (9) a red-sensitized silver halide photosensitive emulsion layer and a development inhibitor-releasing coupler, (10) an interlayer and (11) a blue-sensitized silver halide photosensitive emulsion layer and a yellow-forming coupler.

Claim 12

The reversal photographic material of claim 1 which comprises a polyethylene-coated paper support coated with (1) an antiabrasion layer, (2) a blue-sensitized silver halide photosensitive emulsion layer and a development inhibitor-releasing coupler, (3) an interlayer with an ultraviolet-absorbing compound, (4) a green-sensitized silver halide photosensitive emulsion layer and a magenta-forming coupler, (5) an interlayer, (6) a red-sensitized silver haloiodide photosensitive emulsion layer and a cyan-forming coupler, (7) an interlayer, (8) a green-sensitized silver halide photosensitive emulsion layer and a development inhibitor-releasing coupler, (9) an interlayer and (10) a blue-sensitized silver halide photosensitive emulsion layer and a yellow-forming coupler.

Claim 13

A process for producing a reversal image comprising exposing the photographic element of claim 1, developing said element in a black-and-white developer, washing said element, and then developing said element in a color developer wherein said interimage effect-forming means is released in the color development step.

Claim 14

The process of claim of claim 12 wherein the interimage effect-forming means is a compound releasing a development inhibitor, upon color development, by a redox mechanism.

Claim 15

The process of claim 12 wherein the interimage effect-forming means is present at a coverage of between 5 and 30 percent of the coverage of the dye-forming coupler.