Claims
- 1. A photographic color diffusion transfer element comprising one and only one dimensionally stable support, wherein said support comprises an opaque and light reflecting layer, and coated thereon in reactive association and in sequence (1) a mordant layer for binding diffusible dyes, (2) a stripping layer, (3) one or more layers comprising radiation sensitive silver halide, a solid particle dispersion of a diffusible-dye forming compound, or radiation sensitive silver halide and a solid particle dispersion of a diffusible-dye forming compound, and (4) a barrier layer comprising a polymer that (a) allows the passage of solutions for processing said element when said element is contacted with an external processing bath and (b) blocks the diffusion out of said element of the diffusible dye formed from said solid particle dispersion of a diffusible-dye forming compound when said element is contacted with an external processing bath, and wherein the size of dye forming compound particles in said solid particle dispersion of a diffusible-dye forming compound is on average less than 1 .mu.m in largest dimension and wherein the physical state of the dye forming compound in said particles is a microcrystalline physical state.
- 2. A photographic color diffusion transfer element comprising one and only one dimensionally stable support, wherein said support is optically transparent, and coated thereon in reactive association and in sequence (1) a mordant layer for binding diffusible dyes, (2) an opacifying light reflecting layer, (3) one or more layers comprising radiation sensitive silver halide, a solid particle dispersion of a diffusible-dye forming compound, or radiation sensitive silver halide and a solid particle dispersion of a diffusible-dye forming compound, and (4) a barrier layer comprising a polymer that (a) allows the passage of solutions for processing said element when said element: is contacted with an external processing bath and (b) blocks the diffusion out of said element of the diffusible dye formed from said solid particle dispersion of a diffusible-dye forming compound when said element is contacted with an external processing bath, and wherein the size of dye forming compound particles in said solid particle dispersion of a diffusible-dye forming compound is on average less than 1 .mu.m in largest dimension and wherein the physical state of the dye forming compound in said particles is a microcrystalline physical state.
- 3. A photographic color diffusion transfer element comprising one and only one dimensionally stable support, wherein said support is optically transparent, and coated thereon in reactive association and in sequence (1) one or more layers comprising radiation sensitive silver halide, a solid particle dispersion of a diffusible-dye forming compound, or radiation sensitive silver halide and a solid particle dispersion of a diffusible-dye forming compound, (2) an opacifying light reflecting layer, (3) a mordant layer for binding diffusible dyes, and (4) a barrier layer comprising a polymer that (a) allows the passage of solutions for processing said element when said element is contacted with an external processing bath and (b) blocks the diffusion out of said element of the diffusible dye formed from said solid particle dispersion of a diffusible-dye forming compound when said element is contacted with an external processing bath, and wherein the size of dye forming compound particles in said solid particle dispersion of a diffusible-dye forming compound is on average less than. 1 .mu.m in largest dimension and wherein the physical state of the dye forming compound in said particles is a microcrystalline physical state.
- 4. An element as in claims 1, 2, or 3, wherein said silver halide comprises greater than 95 mole percent silver chloride.
- 5. An element as in claims 1, 2, or 3, wherein one or more interlayers of any type are adjacent to any of said layers (1), (2), (3), and (4), and wherein said interlayers are permeable to aqueous alkaline processing solution.
- 6. An element as in claims 1, 2, or 3, wherein said diffusible-dye forming compound of said solid particle dispersion reacts with the oxidation product of a p-phenylenediamine or p-aminophenol color developing agent to form diffusible dye.
- 7. An element as in claims 1, 2, or 3, wherein said diffusible dye comprises at least one solubilizing group having pK.sub.a in the range of 4 to 10.
- 8. An element as in claims 1, 2, or 3, wherein said diffusible dye comprises at least one solubilizing group having pK.sub.a in the range of 4.5 to 6.5.
- 9. An element as in claims 1, 2, or 3, wherein said diffusible dye comprises at least one --COOH solubilizing group.
- 10. An element as described in claims 1, 2, or 3, wherein said external bath comprises a volume greater than 200 mL per square meter of element contacting said bath.
- 11. An element as described in claims 1, 2, or 3, wherein said mordant layer comprises polymer comprising vinyl repeat units having tertiary amino groups or quaternary ammonium groups and wherein said vinyl repeat units are selected from the group consisting of: ##STR9## wherein R.sub.1 is a hydrogen atom or a lower alkyl group having 1 to 6 carbon atoms; L represents a divalent linking group having 1 to 20 carbon atoms; E represents a hetero ring containing a carbon-nitrogen double bond; n is 0 or 1; R.sub.2, R.sub.3, and R.sub.4 are the same or different and each represents an alkyl group having 1 to 12 carbon atoms or an aralkyl group having 7 to 20 carbon atoms; G.sup.+ represents a hetero ring which is quaternized and contains a carbon-nitrogen double bond; X.sup.- represents a monovalent anion; and R.sub.2 and R.sub.3, R.sub.3 and R.sub.4, or R.sub.2 and R.sub.4 may form, together with the adjacent nitrogen atom, a cyclic structure.
- 12. An element as described in claims 1, 2, or 3, wherein the barrier layer comprises a polymer containing from about 1.times.10.sup.-5 to about 4.times.10.sup.-3 moles/gram of ion-forming functional groups.
- 13. An element as described in claim 12, wherein the polymer is comprised of repeating units derived from ethylenically unsaturated monomers.
- 14. An element as described in claim 13, wherein the polymer is comprised of repeating units derived from a hydrophobic acrylate, methacrylate, acrylamide or methacrylamide monomer.
- 15. An element as described in claim 14, wherein the polymer is further comprised of repeating units derived from a nonionic hydrophilic ethylenically unsaturated monomer.
- 16. An element as described in claim 14, wherein the polymer comprises repeating units of the formula
- --(A).sub.m --(B).sub.n --
- wherein
- the repeating unit A derives from a hydrophobic monomer having the structure ##STR10## where R is hydrogen or methyl;
- E is --OR.sub.2 or --NR.sub.3 R.sub.4
- R.sub.2 is a substituted or unsubstituted straight, branched, or cyclic alkyl or aryl group of about 1 to 10 carbon atoms;
- R.sub.3 and R.sub.4 are independently selected from hydrogen or any R.sub.2 group; and R.sub.3 and R.sub.4 together contain at least 3 carbon atoms;
- m is 0 to 99.5 mole percent;
- wherein
- the repeating unit B derives from an ionic hydrophilic monomer having the structure ##STR11## where R is hydrogen or methyl;
- W is --OR.sub.5 or --NR.sub.6 R.sub.7 ;
- R.sub.5 is a straight, branched, or cyclic alkylene or arylene group of 1 to about 10 carbon atoms;
- R.sub.6 is hydrogen or a straight, branched, or cyclic alkyl or aryl group from 1 to about 6 carbon atoms;
- R.sub.7 is a straight, branched or cyclic alkylene or arylene group of 1 to about 10 carbon atoms;
- n is 0.5 to 100 mole percent;
- Q is an ionic functional group independently selected from:
- (a) --NH.sub.2 or the acid addition salt --NH.sub.2 :HX, where X is an appropriate acid anion or
- (b) --CO.sub.2 M, --SO.sub.2 M, --OSO.sub.3 M, --OPO.sub.3 M and --OM where M is an appropriate cation;
- and wherein the polymer contains from about 1.times.10.sup.-5 to about 4.times.10.sup.-3 moles/gram of ion forming functional groups.
- 17. An element as described in claims 1, 2, or 3, wherein the barrier layer comprises a polymer coated at a level of 750 mg/m.sup.2 to 2 g/m.sup.2.
- 18. A diffusion transfer process for forming a color photographic image comprising the steps of:
- (a) providing an integral element comprising one and only one dimensionally stable layer comprising a coating support, and coated thereon in reactive association (1) a mordant layer for binding diffusible dyes, (2) one or more layers comprising radiation sensitive silver halide, a solid particle dispersion of a diffusible-dye forming compound, or radiation sensitive silver halide and a solid particle dispersion of a diffusible-dye forming compound, and (3) a barrier layer comprising a polymer that (i) allows the passage of solutions for processing said element when said element is contacted with an external processing bath and (ii) blocks the diffusion out of said element of the diffusible dye formed from said solid particle dispersion of a diffusible-dye forming compound when said element is contacted with an external processing bath;
- (b) exposing said element to actinic radiation
- (c) processing said element by contacting said element to an external processing bath containing compounds selected from the group consisting of color developer compounds of the primary amine type, compounds which activate the release of incorporated color developers, and compounds which activate development by incorporated dye developers; and
- (d) washing said element to remove compounds imbibed in step (c)i wherein the size of dye forming compound particles in said solid particle dispersion of a diffusible-dye forming compound is on an average less than 1.mu.m in largest dimension and wherein the physical state of the dye forming compound in said particles is a microcrystalline physical state.
- 19. A process as in claim 18, wherein said support comprises an opaque and light reflecting layer, wherein said layers (1), (2), and (3) are coated in sequence upon said support, and wherein a stripping layer is coated between layers (1) and (2),
- 20. A process as in claim 18, wherein said support comprises an optically transparent layer, wherein said layers (1), (2), and (3) are coated in sequence upon said support and wherein an opacifying light reflecting layer is coated between layers (1) and (2).
- 21. A process as in claim 18, wherein said support comprises an optically transparent layer, wherein said layers (2), (1), and (3) are coated in sequence upon said support, and wherein an opacifying light reflecting layer is coated between layers (2) and (1).
- 22. A process as in claims 19, 20, or 21, wherein said silver halide comprises greater than 95 mole percent silver chloride.
- 23. A process as described in claims 19, 20, or 21, wherein said external bath comprises a volume greater than 200 mL per square meter of element contacting said bath.
- 24. A process as described in claims 19, 20, or 21, wherein said mordant comprises polymer comprising vinyl repeat units having tertiary amino groups or quaternary ammonium groups and wherein said vinyl repeat units are selected from the group consisting of: ##STR12## wherein R.sub.1 is a hydrogen atom or a lower alkyl group having 1 to 6 carbon atoms; L represents a divalent linking group having 1 to 20 carbon atoms; E represents a hetero ring containing a carbon-nitrogen double bond; n is 0 or 1; R.sub.2, R.sub.3, and R.sub.4 are the same or different and each represents an alkyl group having 1 to 12 carbon atoms or an aralkyl group having 7 to 20 carbon atoms; G.sup.+ represents a hetero ring which is quaternized and contains a carbon-nitrogen double bond; X.sup.- represents a monovalent anion; and R.sub.2 and R.sub.3, R.sub.3 and R.sub.4, or R.sub.2 and R.sub.4 may form, together with the adjacent nitrogen atom, a cyclic structure.
- 25. A process as described in claims 19, 20, or 21, wherein the barrier layer comprises a polymer containing from about 1.times.10.sup.-5 to about 4.times.10.sup.-3 moles/gram of ion forming functional groups such that the barrier layer reflects diffusible dye and allows the passage of processing solutions for processing the silver halide emulsion layer.
- 26. A process as in claims 19, 20, or 21, wherein one or more interlayers of any type are adjacent to any of said layers (1), (2), and (3), and wherein said interlayers are permeable to aqueous alkaline processing solution.
- 27. An element as described in claims 1, 2, or 3, wherein the barrier layer comprises a polymer containing from about 5.times.10.sup.-5 to about 2.times.10.sup.-3 moles/gram of ion-forming functional groups.
- 28. A process as described in claims 19, 20, or 21, wherein the barrier layer comprises a polymer containing from about 5.times.10.sup.-5 to about 2.times.10.sup.-3 moles/gram of ion forming functional groups such that the barrier layer reflects diffusible dye and allows the passage of processing solutions for processing the silver halide emulsion layer.
RELATED APPLICATIONS
This application is related to copending and commonly assigned U.S. application Ser. No. 07/952,447 (Polymeric Barrier Layer for Diffusible-Dye Containment in Photographic Elements of Texter et al. filed Sep. 28, 1992), U.S. application Ser. No. 07/952,443 (Image Separation System for Large Volume Development of Texter et al. filed Sep. 28, 1992), U.S. application Ser. No. 07/952,556 (Integral Color Diffusion Transfer Element for Large Volume Development of Texter et al. filed Sep. 28, 1992), U.S. application Ser. No. 07/952,444 (Dye Releasing Couplers for Color Diffusion Transfer Element of Welter and Texter filed Sep. 28, 1992), and U.S. application Ser. No. 07/956,140 (Reactivity Control in Microcrystalline Coupler Dispersions of Texter filed Oct. 5, 1992).
US Referenced Citations (17)
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