Novel photographic products and processes utilizing multicolor additive screens whose filter units are formed of development-diffusible dyes

Claim 2

The product as defined in claim 1 wherein said silver halide emulsion is panchromatically sensitized.

Claim 3

The product as defined in claim 1 wherein said dyes are adapted to react with an oxidation product produced by development of exposed silver halide to provide a diffusible moiety.

Claim 4

A product as defined in claim 4 wherein said dyes are capable upon development of exposed silver halide to autoreact intramolecularly to effect ring closure, to provide a moiety diffusible in an alkaline processing composition.

Claim 5

The product as defined in claim 4 wherein said red dye comprises compounds of the formulas:

Claim 6

A product as defined in claim 1 which includes a layer including a silver halide developing agent intermediate said silver halide emulsion layer and said color screen.

Claim 7

A product as defined in claim 6 wherein said silver halide developing agent is p-methylaminophenol.

Claim 8

A product as defined in claim 1 wherein said silver precipitating nuclei is copper sulfide.

Claim 9

A product as defined in claim 1 wherein said dyeable polymer is poly-4-vinylpyridine.

Claim 10

A product as defined in claim 9 which includes means for spreading an aqueous alkaline processing composition between said image-receiving element and said silver halide emulsion layer.

Claim 11

A process for forming a transfer image in color which comprises the steps of exposing a photographic film unit containing a multicolor screen and a silver halide emulsion layer, the optical film units of said color screen being formed of dyes which are diffusible as a function of development of said silver halide emulsion, from said color screen, contacting said photographic film unit with an aqueous processing composition containing a silver halide solvent and a silver halide developing agent, forming thereby an imagewise distribution of mobile dye as a function of the point-to-point degree of exposure of said silver halide emulsion, transferring by imbibition at least a portion of said imagewise distribution of mobile dye and unexposed silver halide to a superposed image-receiving element, and separating said iMage-receiving element and said photographic film unit subsequent to said dye and silver halide transfer.

Claim 12

The process as defined in claim 11 wherein said color screen is an additive color screen composed of red, green and blue optical filter elements.

Claim 13

The process as defined in claim 11 wherein said silver halide emulsion is panchromatically sensitized.

Claim 14

The product as defined in claim 12 wherein said dyes are adapted to react with an oxidation product produced by development of exposed silver halide to provide a diffusible moiety.

Claim 15

A process as defined in claim 15 wherein said dyes, upon development of exposed silver halide, autoreact intramolecularly to effect ring closure to provide a moiety diffusible in an alkaline processing composition.

Claim 16

The process as defined in claim 15 wherein said red dye comprises compounds of the formulas:

Claim 17

A process as defined in claim 12 which includes a layer including a silver halide developing agent intermediate said silver halide emulsion layer and said color screen.

Claim 18

A process as defined in claim 17 wherein said silver halide developing agent is methylaminophenol.

Claim 19

A process as defined in claim 12 wherein said image-receiving element includes a support carrying on one surface a dyeable polymer having incorporated therein a silver halide precipitating nuclei.

Claim 20

A process as defined in claim 18 wherein said silver precipitating nuclei is copper sulfide.

Claim 21

A process as defined in claim 18 wherein said dyeable polymer is poly-4-vinylpyridine.

Claim 22

A process as defined in claim 18 wherein said support is transparent.

Claim 23

An additive color product comprising a polymeric layer containing a multicolor dye image thereon, said dye image being positive in terms of color rendition and negative in terms of brightness, said dye image being modulated by a negative neutral density silver image associated therewith, to provide, by projection, a positive image by additive color synthesis.