Photographic products and processes with a pH sensitive xanthene light screening dye

Claim 2

A photographic product comprising a plurality of layers including a support and at least one photosensitive silver halide emulsion layer carried on said support, at least one of said layers containing a colored xanthene compound selected from those having the formulae ##STR47## wherein A and A', the same or different, are selected from ##STR48## each R is hydrogen or an electron-withdrawing group; each R 1 is hydrogen or alkyl; each R 2 is hydrogen, alkyl or an electron-withdrawing group; R 3 is hydrogen or alkyl; R 4 is alkyl; n is 0 or 1; and Z is an anion.

Claim 3

A photographic product as defined in claim 1 wherein said colored compound is disposed in a processing composition permeable layer on the same side of said support as said silver halide emulsion layer(s).

Claim 4

A photographic product as defined in claim 2 which comprises, in order, said support, said photosensitive silver halide emulsion layer and said layer containing said colored compound.

Claim 5

A photographic product as defined in claim 3 which includes a silver-precipitating layer carried on said support or on a second support and so positioned as to receive a silver diffusion transfer image upon application of an aqueous alkaline processing composition to provide a silver halide developing agent and a silver halide solvent.

Claim 6

A photographic product as defined in claim 4 which comprises, in order, said support, an additive multicolor screen, said silver-precipitating layer, said photosensitive silver halide emulsion layer and said layer of said colored compound, said support being transparent.

Claim 7

A photographic product as defined in claim 2 wherein said support is transparent and said colored compound is disposed in a layer between said support and said silver halide emulsion layer(s).

Claim 8

A photographic product as defined in claim 2 which additionally includes a layer of said colored compound coated over the photosensitive silver halide emulsion layer outermost from said support on the surface opposite said support.

Claim 9

A photographic product as defined in claim 2 wherein said silver halide emulsion layers are a red-sensitive silver halide emulsion, a green-sensitive silver halide emulsion and a blue-sensitive silver halide emulsion, each said emulsion layer having an image dye-providing substance associated therewith.

Claim 10

A photographic product as defined in claim 1 wherein said colored compound is a compound of said formula Ia.

Claim 11

A photographic product as defined in claim 1 wherein said colored compound is a compound of said formula IIa.

Claim 12

A photographic product as defined in claim 1 wherein said colored compound has the formula ##STR49## wherein Z is an anion.

Claim 13

A photographic product as defined in claim 1 wherein said colored compound has the formula ##STR50## wherein Z is an anion.

Claim 14

A photographic product as defined in claim 1 wherein said colored compound has the formula ##STR51## wherein Z is an anion.

Claim 15

A photographic product for forming a multicolor diffusion transfer image, said product comprising a first sheet-like element comprising a first support carrying a red-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer, and a blue-sensitive silver halide emulsion layer, said silver halide emulsion layers having associated therewith, respectively, a cyan image dye-providing material, a magenta image dye-providing material and a yellow image dye-providing material; a second sheet-like element comprising a second support; said first and second sheet-like elements being in superposed relationship, or adapted to be brought into superposed relationship, with said supports being outermost; at least one of said supports being transparent to permit photoexposure of said silver halide emulsions therethrough; a rupturable container releasably holding an aqueous alkaline processing composition, said rupturable container being so positioned as to be capable of discharging said processing composition between a pair of predetermined layers carried by said supports; an image-receiving layer carried by one of said supports; and a colored xanthene compound being disposed in a processing composition permeable layer carried by one of said supports, said xanthene compound selected from those having the formulae ##STR52## wherein A and A', the same or different, are selected from ##STR53## each R is hydrogen or an electron-withdrawing group; each R 1 is hydrogen or alkyl; each R 2 is hydrogen, alkyl or an electron-withdrawing group; R 3 is hydrogen or alkyl; R 4 is alkyl; n is 0 or 1; and Z is an anion.

Claim 16

A photographic product for forming a multicolor diffusion transfer image, said product comprising a first sheet-like element comprising a first support carrying a red-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer, and a blue-sensitive silver halide emulsion layer, said silver halide emulsion layers having associated therewith, respectively, a cyan image dye-providing material, a magenta image dye-providing material and a yellow image dye-providing material; a second sheet-like element comprising a second support; said first and second sheet-like elements being in superposed relationship, or adapted to be brought into superposed relationship, with said supports being outermost; at least one of said supports being transparent to permit photoexposure of said silver halide emulsions therethrough; a rupturable container releasably holding an aqueous alkaline processing composition, said rupturable container being so positioned as to be capable of discharging said processing composition between a pair of predetermined layers carried by said supports; an image-receiving layer carried by one of said supports; and a colored xanthene compound being disposed in a processing composition permeable layer carried by one of said supports, said xanthene compound selected from those having the formulae ##STR52## wherein A and A', the same or different, are selected from ##STR53## each R is hydrogen or an electron-withdrawing group; each R 1 is hydrogen or alkyl; each R 2 is hydrogen, alkyl or an electron-withdrawing group; R 3 is hydrogen or alkyl; R 4 is alkyl; n is 0 or 1; and Z is an anion.

Claim 17

A photographic product as defined in claim 14 wherein said colored compound is so positioned that photoexposure of said silver halide emulsion layers is effected therethrough.

Claim 18

A photographic product as defined in claim 15 wherein said second support is transparent and said image-receiving layer and said light-screening dye are carried by said transparent second support of said second sheet-like element.

Claim 19

A photographic product as defined in claim 14 wherein said product includes means providing a layer of a white pigment between said image-receiving layer and said silver halide emulsions.

Claim 20

A photographic product as defined in claim 17 wherein said means providing a layer of a white pigment comprises a white pigment dispersed in said processing composition.

Claim 21

A photographic product as defined in claim 17 wherein said means providing a layer of a white pigment comprises a preformed layer of a white pigment.

Claim 22

A photographic product as defined in claim 16 wherein said colored compound is disposed in said image-receiving layer.

Claim 23

A photographic product as defined in claim 19 wherein said colored compound is disposed in said preformed layer of a white pigment.

Claim 24

A photographic product as defined in claim 14 wherein each said image dye-providing materials is an image dye-providing material selected from image dyes and image dye intermediates.

Claim 25

A photographic product as defined in claim 22 wherein each said image dye-providing material is a dye.

Claim 26

A photographic product as defined in claim 23 wherein each said dye is a dye developer.

Claim 27

A photographic product as defined in claim 14 wherein said first and second sheet-like elements are in superposed relationship.

Claim 28

A photographic product as defined in claim 14 wherein said second sheet-like element is adapted to be superposed with said first sheet-like element.

Claim 29

A photographic product as defined in claim 16 wherein said first support is opaque.

Claim 30

A photographic product as defined in claim 15 wherein said first and second supports are transparent.

Claim 31

A photographic product as defined in claim 14 wherein said colored compound is a compound of said formula Ia.

Claim 32

A photographic product as defined in claim 14 wherein said colored compound is a compound of said formula IIa.

Claim 33

A photographic product as defined in claim 14 wherein said colored compound has the formula ##STR54## wherein Z is an anion.

Claim 34

A photographic product as defined in claim 14 wherein said colored compound has the formula ##STR55## wherein Z is an anion.

Claim 35

A photographic product as defined in claim 14 wherein said colored compound has the formula ##STR56## wherein Z is an anion.

Claim 36

A photographic process which comprises the steps of exposing a photosensitive film comprising a plurality of layers including at least one photosensitive silver halide emulsion layer carried on a support, at least one of said layers containing a colored xanthene compound having the formulae ##STR57## wherein A and A', the same or different, are selected from ##STR58## each R is hydrogen or an electron-withdrawing group; each R 1 is hydrogen or alkyl; each R 2 is hydrogen, alkyl or an electron-withdrawing group; R 3 is hydrogen or alkyl; R 4 is alkyl; n is 0 or 1 and Z is an anion and contacting said photosensitive silver halide emulsion layer(s) with an aqueous alkaline processing composition having an alkaline pH to effect development.

Claim 37

A photographic process which comprises the steps of exposing a photosensitive film comprising a plurality of layers including at least one photosensitive silver halide emulsion layer carried on a support, at least one of said layers containing a colored xanthene compound having the formulae ##STR57## wherein A and A', the same or different, are selected from ##STR58## each R is hydrogen or an electron-withdrawing group; each R 1 is hydrogen or alkyl; each R 2 is hydrogen, alkyl or an electron-withdrawing group; R 3 is hydrogen or alkyl; R 4 is alkyl; n is 0 or 1 and Z is an anion and contacting said photosensitive silver halide emulsion layer(s) with an aqueous alkaline processing composition having an alkaline pH to effect development.

Claim 38

A photographic process as defined in claim 34 wherein said colored compound is disposed in a processing composition permeable layer on the same side of said support as said silver halide emulsion layer and said contacting with said alkaline processing composition also being effective to convert said colored compound to its colorless form.

Claim 39

A photographic process as defined in claim 35 wherein said support is transparent and said colored compound is disposed in a layer between said support and said silver halide emulsion layer(s).

Claim 40

A photographic process as defined in claim 35 wherein said film includes a layer of said colored compound coated over the silver halide emulsion layer outermost from said support on the surface opposite said support.

Claim 41

A photographic process as defined in claim 35 wherein said silver halide emulsion layers are a red-sensitive silver halide layer, a green-sensitive silver halide layer and a blue-sensitive silver halide layer, each said emulsion layer having an image dye-providing material associated therewith.

Claim 42

A photographic process as defined in claim 35 including the step of separating said processing composition from contact with said film unit subsequent to development.

Claim 43

A photographic process which comprises, in combination, the steps of: (a) exposing a photosensitive film unit comprising a plurality of layers including a support carrying at least one photosensitive silver halide emulsion layer having associated therewith an image-providing material, an image-receiving layer adapted to receive a solubilized image-providing material diffusing thereto, at least one of said layers on the same side of said support as said silver halide layer(s) containing a colored xanthene compound selected from those having the formulae ##STR59## wherein A and A', the same or different, are selected from ##STR60## each R is hydrogen or an electron-withdrawing group; each R 1 is hydrogen or alkyl; each R 2 is hydrogen, alkyl or an electron-withdrawing group; R 3 is hydrogen or alkyl; R 4 is alkyl; n is 0 or 1; and Z is an anion; (b) contacting said silver halide layer(s) and said colored compound with a processing composition having an alkaline pH; (c) effecting thereby development of said silver halide layer(s), contacting with said alkaline processing composition also being effective to convert said colored compound to its colorless form; (d) forming as a result of said development, an imagewise distribution of diffusible image-providing material; and (e) transferring, by diffusion, at least a portion of said imagewise distribution of diffusible image-providing material to said layer adapted to receive said material to provide a transfer image thereto.

Claim 44

A photographic process which comprises, in combination, the steps of: (a) exposing a photosensitive film unit comprising a plurality of layers including a support carrying at least one photosensitive silver halide emulsion layer having associated therewith an image-providing material, an image-receiving layer adapted to receive a solubilized image-providing material diffusing thereto, at least one of said layers on the same side of said support as said silver halide layer(s) containing a colored xanthene compound selected from those having the formulae ##STR59## wherein A and A', the same or different, are selected from ##STR60## each R is hydrogen or an electron-withdrawing group; each R 1 is hydrogen or alkyl; each R 2 is hydrogen, alkyl or an electron-withdrawing group; R 3 is hydrogen or alkyl; R 4 is alkyl; n is 0 or 1; and Z is an anion; (b) contacting said silver halide layer(s) and said colored compound with a processing composition having an alkaline pH; (c) effecting thereby development of said silver halide layer(s), contacting with said alkaline processing composition also being effective to convert said colored compound to its colorless form; (d) forming as a result of said development, an imagewise distribution of diffusible image-providing material; and (e) transferring, by diffusion, at least a portion of said imagewise distribution of diffusible image-providing material to said layer adapted to receive said material to provide a transfer image thereto.

Claim 45

A photographic process as defined in claim 40 which includes the step of maintaining said film unit intact subsequent to said processing.

Claim 46

A photographic process as defined in claim 41 wherein said processing composition includes a silver halide solvent and said transfer image is an image in silver.

Claim 47

A photographic process as defined in claim 42 wherein said photosensitive film unit comprises, in order, a transparent support, an additive multicolor screen, an image-receiving layer comprising a silver-precipitating layer, a photosensitive silver halide emulsion layer and a layer of said colored compound.

Claim 48

A photographic process as defined in claim 40 wherein said colored compound is a compound of said formula Ia.

Claim 49

A photographic process as defined in claim 40 wherein said colored compound is a compound of said formula IIa.

Claim 50

A photographic process as defined in claim 40 wherein said colored compound has the formula ##STR61## wherein Z is an anion.

Claim 51

A photographic process as defined in claim 40 wherein said colored compound has the formula ##STR62## wherein Z is an anion.

Claim 52

A photographic process as defined in claim 40 wherein said colored compound has the formula ##STR63## wherein Z is an anion.

Claim 53

A photographic process for forming a multicolor diffusion transfer image which comprises the steps of: (a) exposing a photosensitive film unit which includes, in combination, a first sheet-like element comprising a first support carrying a red-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer, and a blue-sensitive silver halide emulsion layer, said silver halide emulsion layers having associated therewith, respectively, a cyan image dye-providing material, a magenta image dye-providing material and a yellow image dye-providing material; a second sheet-like element comprising a second support; said first and second sheet-like elements being in superposed relationship, or adapted to be brought into superposed relationship, with said supports being outermost; at least one of said supports being transparent to permit photoexposure of said silver halide emulsions therethrough; a rupturable container releasably holding an aqueous alkaline processing composition, said rupturable container being so positioned as to be capable of discharging said processing composition between a pair of predetermined layers carried by said supports; an image-receiving layer carried by one of said supports; and a colored compound disposed in a processing composition permeable layer carried by one of said supports, said colored compound being a xanthene compound having the formulae ##STR64## wherein A and A', the same or different, are selected from ##STR65## each R is hydrogen or an electron-withdrawing group; each R 1 is hydrogen or alkyl; each R 2 is hydrogen, alkyl or an electron-withdrawing group; R 3 is hydrogen or alkyl; R 4 is alkyl; n is 0 or 1; and Z is an anion; (b) contacting said silver halide layer(s) and said colored compound with a processing composition having an alkaline pH; (c) effecting thereby development of said silver halide layer(s), said contacting with said alkaline processing composition also being effective to convert said colored compound to its colorless form; (d) forming as a result of said development, an imagewise distribution of diffusible image dye-providing material; and (e) transferring, by diffusion, at least a portion of said imagewise distribution of diffusible image dye-providing material to said image-receiving layer to provide a transfer image thereto.

Claim 54

A photographic process for forming a multicolor diffusion transfer image which comprises the steps of: (a) exposing a photosensitive film unit which includes, in combination, a first sheet-like element comprising a first support carrying a red-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer, and a blue-sensitive silver halide emulsion layer, said silver halide emulsion layers having associated therewith, respectively, a cyan image dye-providing material, a magenta image dye-providing material and a yellow image dye-providing material; a second sheet-like element comprising a second support; said first and second sheet-like elements being in superposed relationship, or adapted to be brought into superposed relationship, with said supports being outermost; at least one of said supports being transparent to permit photoexposure of said silver halide emulsions therethrough; a rupturable container releasably holding an aqueous alkaline processing composition, said rupturable container being so positioned as to be capable of discharging said processing composition between a pair of predetermined layers carried by said supports; an image-receiving layer carried by one of said supports; and a colored compound disposed in a processing composition permeable layer carried by one of said supports, said colored compound being a xanthene compound having the formulae ##STR64## wherein A and A', the same or different, are selected from ##STR65## each R is hydrogen or an electron-withdrawing group; each R 1 is hydrogen or alkyl; each R 2 is hydrogen, alkyl or an electron-withdrawing group; R 3 is hydrogen or alkyl; R 4 is alkyl; n is 0 or 1; and Z is an anion; (b) contacting said silver halide layer(s) and said colored compound with a processing composition having an alkaline pH; (c) effecting thereby development of said silver halide layer(s), said contacting with said alkaline processing composition also being effective to convert said colored compound to its colorless form; (d) forming as a result of said development, an imagewise distribution of diffusible image dye-providing material; and (e) transferring, by diffusion, at least a portion of said imagewise distribution of diffusible image dye-providing material to said image-receiving layer to provide a transfer image thereto.

Claim 55

A photographic process as defined in claim 49 wherein said colored compound is so positioned that exposure of said silver halide layer(s) is effected therethrough.

Claim 56

A photographic process as defined in claim 50 wherein said second support is transparent and said image-receiving layer and said colored compound are carried by said transparent second support of said second sheet-like element.

Claim 57

A photographic process as defined in claim 50 wherein said product includes means providing a layer of a white pigment between said image-receiving layer and said silver halide emulsions.

Claim 58

A photographic process as defined in claim 52 wherein said means providing a layer of a white pigment comprises a white pigment dispersed in said processing composition.

Claim 59

A photographic process as defined in claim 52 wherein said means providing a layer of a white pigment comprises a preformed layer of a white pigment.

Claim 60

A photographic process as defined in claim 51 wherein said light-screening dye is disposed in said image-receiving layer.

Claim 61

A photographic process as defined in claim 49 wherein each said image dye-providing materials is an image dye-providing material selected from image dyes and image dye intermediates.

Claim 62

A photographic process as defined in claim 56 wherein each said image dye-providing material is a dye.

Claim 63

A photographic process as defined in claim 57 wherein each said dye is a dye developer.

Claim 64

A photographic process as defined in claim 49 wherein said first and second sheet-like elements are in superposed relationship.

Claim 65

A photographic process as defined in claim 49 wherein said second sheet-like element is adapted to be superposed with said first sheet-like element.

Claim 66

A photographic process as defined in claim 51 wherein said first support is opaque.

Claim 67

A photographic process as defined in claim 49 wherein said colored compound is a compound of said formula Ia.

Claim 68

A photographic process as defined in claim 49 wherein said colored compound is a compound of said formula IIa.

Claim 69

A photographic process as defined in claim 49 wherein said colored compound has the formula ##STR66## wherein Z is an anion.

Claim 70

A photographic process as defined in claim 49 whrerein said colored compound has the formula ##STR67## wherein Z is an anion.

Claim 71

A photographic process as defined in claim 49 wherein said colored compound has the formula ##STR68## wherein Z is an anion.