Photographic processes and products employing aminomethyl-substituted phenolic phthaleins as optical filter agents

Claim 2

A process as defined in claim 1 wherein said indicator dye is retained in said element and is rendered ineffective to prevent viewing of the final image subsequent to substantial image development by adjusting the pH of said indicator dyes environment to a value at which it is substantially non-light-absorbing.

Claim 3

A process as defined in claim 3 wherein said indicator dye is initially present in a processing composition permeable layer at a pH value at which it is substantially non-light absorbing, said layer being coextensive with at least one surface of said photosensitive layer and said processing composition applied thereto having a pH at which said indicator dye is light-absorbing.

Claim 4

A process as defined in claim 1 wherein said layer of photosensitive material is a silver halide layer.

Claim 5

A process as defined in claim 1 wherein said indicator dye is a phthalide.

Claim 6

A process as defined in claim 6 wherein said carbocyclic aryl radicals are p-hydroxyphenyl radicals.

Claim 7

A process as defined in claim 7 wherein both of said radicals are substituted with -CH2-NRR'' groups, the same.

Claim 8

A process as defined in claim 8 wherein R'' is alkyl.

Claim 9

A process as defined in claim 9 wherein R is hydrogen.

Claim 10

A process as defined in claim 6 wherein said carbocyclic aryl radicals are p-hydroxynaphthyl radicals.

Claim 11

A process as defined in claim 11 wherein one of said radicals is substituted with a -CH2-NRR'' group.

Claim 12

A process as defined in claim 12 wherein R'' is alkyl.

Claim 13

A process as defined in claim 13 wherein R is acyl.

Claim 14

A process as defined in claim 11 wherein both of said radicals are substituted with -CH2-NRR'' groups, the same.

Claim 15

A process as defined in claim 15 wherein R'' is alkyl.

Claim 16

A process as defined in claim 16 wherein R is hydrogen.

Claim 17

A process as defined in claim 15 wherein R is acyl.

Claim 18

A process as defined in claim 9 wherein R'' is n-dodecyl.

Claim 19

A process as defined in claim 19 wherein R is hydrogen.

Claim 20

A process as defined in claim 13 wherein R'' is n-dodecyl.

Claim 21

A process as defined in claim 21 wherein R is acetyl.

Claim 22

A process as defined in claim 16 wherein R'' is n-dodecyl.

Claim 23

A process as defined in claim 23 wherein R is hydrogen.

Claim 24

A process as defined in claim 23 wherein R is acetyl.

Claim 25

A process of forming photographic diffusion transfer images which comprises, in combination, the steps of: a. exposing a photographic film unit which comprises a plurality of layers including an opaque support layer carrying a photosensitive silver halide layer having associated therewith a compound capable of providing as a function of development an imagewise distribution of an image-forming material which is processing composition soluble and diffusible as a function of the point-to-point degree of exposure of said silver halide layer and a diffusion transfer process image-receiving layer adapted to receive solubilized image-forming material diffusing thereto; b. contacting said photosensitive silver halide layer with an aqueous alkaline processing composition to provide an indicator dye in a form capable of absorbing a predetermined wavelength range of radiation actinic to said photosensitive material, said indicator dye being selected from a 3,3-disubstituted phthalide and a 3,3-disubstituted naphthalide wherein said 3,3 substituents are p-hydroxycarbocyclic aryl radicals, at least one of said radicals possessing a -CH2-NRR'' group ortho to the p-hydroxy group wherein said R is hydrogen, alkyl, aryl or acyl and said R'' is alkyl, aryl or alkaryl, said carbocyclic aryl radicals being selected from two p-hydroxyphenyl radicals and two p-hydroxynaphthyl radicals and said -CH2-NRR'' group or groups being capable of rendering said dye substantially non-diffusible in aqueous solution; c. effecting thereby sustantial development of said silver halide emulsion; d. forming thereby an imagewise distribution of diffusible image-forming material, as a function of the point-to-point degree of emulsion exposure; and e. transferring, by diffusion, at least a portion of said imagewise distribution of diffusible image-forming material to said layer adapted to receive said material to provide an image therein; said indicator dye being present during development in a position and quantity effective to absorb said wavelength range of actinic radiation in an amount sufficient to prevent any substantial decrease, as a result of performing said process in the presence of incident actinic light within said wavelength range, in the maximum density of the image obtained by the transfer of said diffusible image-forming material.

Claim 26

A process of forming transfer images as defined in claim 26 wherein said indicator dye is disposed, at a pH below its pKa, in a separate processing composition permeable layer and said photosensitive silver halide layer is positioned intermediate said opaque support and said layer containing said indicator dye.

Claim 27

A process of forming transfer images in color which comprises, in combination, the steps of: a. exposing a photographic film unit which is adapted to be processed by application of pressure to release and distribute a processing composition and which includes, in combination, a photosensitive element comprising a composite structure containing, as essential layers, in sequence, a first support layer opaque to incident actinic radiation; a photosensitive silver halide layer having associated therewith a compound capable of providing as a function of development an imagewise distribution of a dye image-forming material which is processing composition soluble and diffusible as a function of exposure of the photosensitive silver halide layer to actinic radiation; a polymeric layer dyeable by said dye image-forming material; a second support layer transparent to incident actinic radiation; and means securing said layers in substantially fixed relationship; means for interposing a reflecting agent and an indicator dye capable of absorbing incident radiation within a predetermined wavelength range actinic to said photosensitive layer at a pH above its pKa intermediate said dyeable polymeric layer and said photosensitive silver halide layer and associated dye image-forming material subsequent to photoexposure of said film unit, said indicator dye being selected from a 3,3-disubstituted phthalide and a 3,3-disubstituted naphthalide wherein said 3,3 substituents are p-hydroxycarbocyclic aryl radicals, at least one of said radicals possessing a -CH2-NRR'' group ortho to the p-hydroxy group wherein said R is hydrogen, alkyl, aryl or acyl and said R'' is alkyl, aryl or alkaryl, said carbocyclic aryl radicals being selected from two p-hydroxyphenyl radicals and two p-hydroxynaphthyl radicals and said -CH2-NRR'' group or groups being capable of rendering said dye substantially non-diffusible in aqueous solution; a rupturable container retaining an aqueous alkaline processing composition possessing a pH above the pKa of said indicator dye fixedly positioned and extending transverse a leading edge of said photosensitive element to effect unidirectional discharge of the container''s processing composition intermediate said dyeable polymeric layer and the photosensitive silver halide layer next adjacent thereto upon application of compressive force to said container; b. applying compressive force to said rupturable container to effect unidirectional discharge of the container''s processing composition intermediate said dyeable polymeric layer and said photo-sensitive silver halide layer; c. effecting thereby substantial development of said silver halide layer and disposition of said reflecting agent and said indicator dye at a pH above its pKa intermediate said dyeable polymeric layer and said photosensitive silver halide layer; d. as a result of said development, forming an imagewise distribution of diffusible dye image-forming material, as a function of the point-to-point degree of exposure of said photosensitive layer; e. transferring, by diffusion, at least a portion of said imagewise distribution of diffusible dye image-forming material to said dyeable polymeric layer to provide a dye image thereto; and f. maintaining said composite structure intact subsequent to said processing, said indicator dye being present in a quantity effective to absorb said wavelength range of incident radiation in an amount sufficient in combination with said reflecting agent, to prevent any substantial decrease, as a result of performing said process in the presence of incident actinic light within said wavelength range, in the maximum density of the image obtained by the transfer of said diffusible image-forming material.

Claim 28

A process of forming transfer images in color as defined in claim 28 wherein said indicator dye is initially disposed at a pH below its pKa in an aqueous alkaline processing composition permeable layer of said photosensitive element intermediate said dyeable polymeric layer and said silver halide layer, and said rupturable container containing said aqueous alkaline processing composition possessing a pH above the pKa of said indicator dye is fixedly positioned and extends transverse a leading edge of said photosensitive element to effect unidirectional discharge of the processing composition said indicator dye upon application of compressive force to said container and including the step of discharging said processing composition, subsequent to exposure of said photosensitive element, intermediate said dyeable polymeric layer and said layer containing said indicator dye.

Claim 29

A process of forming transfer images in color as defined in claim 28 wherein said reflecting agent is titanium dioxide and said indicator dye and said titanium dioxide are initially disposed in said aqueous alkaline processing composition as retained in said rupturable container.

Claim 30

A process of forming transfer images in color as defined in claim 28 wherein said photosensitive element includes at least one acid reacting polymeric layer positioned intermediate at least one of (a) said first opaque layer and the photosensitive silver halide layer next adjacent thereto, and (b) said second transparent layer and the dyeable polymeric layer next adjacent thereto, and contains sufficient acidifying function to effect reduction of said aqueous alkaline processing composition from a pH above to a pH below the pKa of said indicator dye and including the step of transferring, by diffusion, subsequent to substantial transfer dye image formation, a sufficient portion of the ions of said processing composition to said polymeric acid layer to thereby reduce said pH to a pH below said pKa.

Claim 31

A process of forming transfer images in color as defined in claim 31 wherein said dye-image forming material comprises a dye which is a silver halide developing agent and said photosensitive layer is a silver halide emulsion.

Claim 32

A process of forming transfer images in color as defined in claim 32 wherein said photosensitive element comprises at least two selectively sensitized silver halide emulsion layers, each of said layers having associated therewith an image-forming dye, which is a silver halide developing agent, of predetermined color, and is soluble and diffusible, in aqueous alkaline processing composition As a function of the point-to-point degree of exposure of the respective emulsion associated therewith.

Claim 33

A process of forming transfer images in color as defined in claim 28 wherein said photosensitive element comprises three selectively sensitized silver halide emulsion layers on said support, in sequence, a red-sensitive silver halide emulsion layer having associated therewith a cyan image-forming dye; a green-sensitive silver halide emulsion layer having associated therewith a magenta image-forming dye; a blue-sensitive silver halide emulsion layer having associated therewith a yellow image-forming dye; each of said cyan, magenta and yellow image-forming dyes being silver halide developing agents and soluble and diffusible in said aqueous alkaline processing solution.

Claim 34

A process as defined in claim 28 wherein said dye is a phthalide.

Claim 35

A process as defined in claim 35 wherein said carbocyclic aryl radicals are p-hydroxyphenyl radicals.

Claim 36

A process as defined in claim 36 wherein both of said radicals are substituted with -CH2-NRR'' groups, the same.

Claim 37

A process as defined in claim 37 wherein R'' is alkyl.

Claim 38

A process as defined in claim 38 wherein R is hydrogen.

Claim 39

A process as defined in claim 35 wherein said carbocyclic aryl radicals are p-hydroxynaphthyl radicals.

Claim 40

A process as defined in claim 40 wherein one of said radicals is substituted with a -CH2-NRR'' group.

Claim 41

A process as defined in claim 41 wherein R'' is alkyl.

Claim 42

A process as defined in claim 42 wherein R is acyl.

Claim 43

A process as defined in claim 40 wherein both of said radicals are substituted with -CH2-NRR'' groups, the same.

Claim 44

A process as defined in claim 44 wherein R'' is alkyl.

Claim 45

A process as defined in claim 45 wherein R is hydrogen.

Claim 46

A process as defined in claim 45 wherein R is acyl.

Claim 47

A process as defined in claim 38 wherein R'' is n-dodecyl.

Claim 48

A process as defined in claim 48 wherein R is hydrogen.

Claim 49

A process as defined in claim 42 wherein R'' is n-dodecyl.

Claim 50

A process as defined in claim 59 wherein R is acetyl.

Claim 51

A process as defined in claim 45 wherein R'' is n-dodecyl.

Claim 52

A process as defined in claim 52 wherein R is hydrogen.

Claim 53

A process as defined in claim 52 wherein R is acetyl.

Claim 54

A photographic film unit which comprises a plurality of layers including a support layer carrying on one surface, in order, a layer of photosensitive material and a layer comprising an indicator dye disposed at a pH below its pKa selected from a 3,3-disubstituted phthalide and a 3,3-disubstituted naphthalide wherein said 3,3 substituents are p-hydroxycarbocylic aryl radicals, at least one of said radicals possessing a -CH2-NRR'' group ortho to the p-hydroxy group wherein said R is hydrogen, alkyl, aryl or acyl and said R'' is alkyl, aryl or alkaryl, said carbocyclic aryl radicals being selected from two p-hydroxyphenyl radicals and two p-hydroxynaphthyl radicals and said -CH2-NRR'' group or groups being capable of rendering said dye substantially non-diffusible in aqueous solution.

Claim 55

A photographic film unit as defined in claim 58 wherein said photosensitive material is silver halide.

Claim 56

A photographic film unit as defined in claim 56 wherein said silver halide layer has associated therewith a silver halide developing agent.

Claim 57

A photographic film unit as defined in claim 56 wherein said silver halide layer has associated therewith a dye-providing compound capable of providing as a function of development an imagewise distribution of a dye image-forming material which is processing composition soluble and diffusible as a function of the point-to-point degree of exposure of said silver halide layer.

Claim 58

A photographic film unit as defined in claim 58 which is adapted to be processed by application of pressure to release and distribute a processing composition and which comprises, in combination: a photosensitive element including a composite structure containing, as essential layers, in sequence, a first support layer opaque to incident actinic radiation; at least two selectively sensitized silver halide layers, each having associated therewith an image-forming dye which is a silver halide developing agent of predetermined color, each of said dyes being soluble and diffusible in alkaline processing composition as a function of the point-to-point degree of exposure of the respective silver halide associated therewith, a polymeric layer dyeable by said dye; a second support layer transparent to incident actinic radiation; and means securing said layers in substantially fixed relationship; a rupturable container retaining an alkaline processing composition containing reflecting agent fixedly positioned and extending transverse a leading edge of said photosensitive element to effect unidirectional discharge of said container''s processing composition between said dyeable polymeric layer and the photosensitive silver halide layer next adjacent thereto upon application of pressure to said container; and an indicator dye capable of absorbing incident radiation within a predetermined wavelength range actinic to said silver halide disposed in at least one of said processing composition and, at a pH below its pKa, in a layer intermediate said photosensitive silver halide layer and said second support layer transparent to incident actinic radiation, said indicator dye being selected from a 3,3-substituted phthalide, and a 3,3-disubstituted naphthalide wherein said 3,3 substituents are p-hydroxycarbocylic aryl radicals, at least one of said radicals possessing a -CH2-NRR'' group ortho to the p-hydroxy group wherein said R is hydrogen, alkyl, aryl or acyl and said R'' is alkyl, aryl or alkaryl, said carbocyclic aryl radicals being selected from two p-hydroxyphenyl radicals and two p-hydroxynaphthyl radicals and said -CH2-NRR'' group or groups being capable of rendering said dye substantially non-diffusible in aqueous solution.

Claim 59

A photographic film unit as defined in claim 59 including at least one acid reacting polymeric layer positioned intermediate at least one of said first opaque layer and the photosensitive silver halide layer next adjacent thereto, and said second transparent layer and the dyeable polymeric layer next adjacent thereto, said polymeric acid layer containing sufficient acidifying function to effect reduction of said processing composition from a first pH at which said image-forming dye is substantially soluble and diffusible to a second pH at which said dye is substantially nondiffusible.

Claim 60

A photographic film unit as defined in claim 60 wherein said reflecting agent taken together with said indicator dye are adapted to prevent further exposure of the selectively exposed silver halide layer during processing in the presence of radiation within said predetermined wavelength range actinic to the silver halide layer and incident on the surface of the film unit opposite to the opaque support layer.

Claim 61

A photographic film unit as defined in claim 61 wherein said photosensitive element includes, as essential layers, in sequence, from said opaque support layer, an alkaline solution permeable polymeric layer containing a cyan dye; a red-sensitive silver halide emulsion layer; and alkaline solution permeable polymeric layer containing a magenta dye; a green-sensitive silver halide emulsion layer; an alkaline solution permeable polymeric layer containing a yellow dye; a blue-sensitive silver halide emulsion layer, each of said cyan, magenta and yellow dyes being silver halide developing agents and being soluble and diffusible, in aqueous alkaline solution at said first pH and substantially insoluble in aqueous alkaline solution at said second pH.

Claim 62

A film unit as defined in claim 55 whereIn said dye is a phthalide.

Claim 63

A film unit as defined in claim 63 wherein said carbocyclic aryl radicals are p-hydroxyphenyl radicals.

Claim 64

A film unit as defined in claim 64 wherein both of said radicals are substituted with -CH2-NRR'' groups, the same.

Claim 65

A film unit as defined in claim 65 wherein R'' is alkyl.

Claim 66

A film unit as defined in claim 66 wherein R is hydrogen.

Claim 67

A film unit as defined in claim 63 wherein said carbocyclic aryl radicals are p-hydroxynapthyl radicals.

Claim 68

A film unit as defined in claim 68 wherein one of said radicals is substituted with a -CH2-NRR'' group.

Claim 69

A film unit as defined in claim 67 wherein R'' is alkyl.

Claim 70

A film unit as defined in claim 70 wherein R is acyl.

Claim 71

A film unit as defined in claim 68 wherein both of said radicals are substituted with -CH2-NRR'' groups, the same.

Claim 72

A film unit as defined in claim 72 wherein R'' is alkyl.

Claim 73

A film unit as defined in claim 73 wherein R is hydrogen.

Claim 74

A film unit as defined in claim 73 wherein R is acyl.

Claim 75

A film unit as defined in claim 66 wherein R'' is n-dodecyl.

Claim 76

A film unit as defined in claim 76 wherein R is hydrogen.

Claim 77

A film unit as defined in claim 70 wherein R'' is n-dodecyl.

Claim 78

A film unit as defined in claim 78 wherein R is acetyl.

Claim 79

A film unit as defined in claim 78 wherein R'' is n-dodecyl.

Claim 80

A film unit as defined in claim 80 wherein R is hydrogen.

Claim 81

A film unit as defined in claim 80 wherein R is acetyl.

Claim 82

A photographic processing composition comprising an aqueous alkaline solution of a viscosity imparting reagent, a light reflecting agent and an indicator dye selected from a 3,3-disubstituted phthalide and a 3,3-disubstituted naphthalide wherein said 3,3 substituents are p-hydroxycarbocyclic aryl radicals, at least one of said radicals possessing a -CH2-NRR'' group ortho to the p-hydroxy group wherein said R is hydrogen, alkyl, aryl or acyl and said R'' is alkyl, aryl or alkaryl, said carbocyclic aryl radicals being selected from two p-hydroxyphenyl radicals and two p-hydroxynaphthyl radicals and said -CH2-NRR'' group or groups being capable of rendering said dye substantially non-diffusible in aqueous solution.

Claim 83

A composition as defined in claim 83 which additionally contains a silver halide developing agent.

Claim 84

A composition as defined in claim 83 wherein said dye is a phthalide.

Claim 85

A composition as defined in claim 85 wherein said carbocyclic aryl radicals are p-hydroxyphenyl radicals.

Claim 86

A composition as defined in claim 86 wherein both of said radicals are substituted with -CH2-NRR'' groups, the same.

Claim 87

A composition as defined in claim 87 wherein R'' is alkyl.

Claim 88

A composition as defined in claim 88 wherein R is hydrogen.

Claim 89

A composition as defined in claim 85 wherein said carbocyclic aryl radicals are p-hydroxynaphthyl radicals.

Claim 90

A composition as defined in claim 90 wherein one of said radicals is substituted with a -CH2NRR'' group.

Claim 91

A composition as defined in claim 91 wherein R'' is alkyl.

Claim 92

A composition as defined in claim 92 wherein R is acyl.

Claim 93

A composition as defined in claim 90 wherein both of said radicals are substituted with -CH2-NRR'' groups, the same.

Claim 94

A composition as defined in claim 94 wherein R'' is alkyl.

Claim 95

A composition as defined in claim 95 wherein R is hydrogen.

Claim 96

A composition as defined in claim 95 wherein R is acyl.

Claim 97

A composition as defined in claim 88 wherein R'' is n-dodecyl.

Claim 98

A composition as defined in claim 98 wherein R is hydrogen.

Claim 99

A composition as defined in claim 92 wherein R'' is n-dodecyl.

Claim 100

A composition as defined in claim 100 wherein R is acetyl.

Claim 101

A composition as defined in cLaim 95 wherein R'' is n-dodecyl.

Claim 102

A composition as defined in claim 102 wherein R is hydrogen.

Claim 103

A composition as defined in claim 102 wherein R is acetyl.

Claim 104

A composition as defined in claim 83 wherein said aqueous alkaline solution has a pH above the pKa of said indicator dye.