Dye diffusion transfer film containing alkali-dissociable inorganic salts
阅读：536发布：2024-01-03
专利汇可以提供Dye diffusion transfer film containing alkali-dissociable inorganic salts专利检索，专利查询，专利分析的服务。并且Integral negative-positive film units adapted for forming multicolor transfer images, which film units include A NEGATIVE COMPONENT COMPRISING A BLUE-SENSITIVE, A GREENSENSITIVE AND A RED-SENSITIVE GELATINO SILVER HALIDE EMULSION HAVING ASSOCIATED THEREWITH IN A CONTIGUOUS LAYER, RESPECTIVELY, A YELLOW DYE DEVELOPER, A MAGENTA DYE DEVELOPER AND A CYAN DYE DEVELOPER, AT LEAST ONE SET OF SAID EMULSION LAYERS AND ASSOCIATED DYE DEVELOPER LAYERS BEING SEPARATED FROM ANOTHER SET OF EMULSION LAYERS AND ASSOCIATED DYE DEVELOPER LAYERS BY AN INTERLAYER COMPRISING A DYE IMPERMEABLE COALESCED ESSENCE OF AN AQUEOUS FILM-FORMING POLYMER DISPERSION AND A PROCESSING COMPOSITION PERMEABLE MATERIAL ASSOCIATED THEREWITH AND ADAPTED TO RENDER THE INTERLAYER PERMEABLE TO SOLUBILIZED DYE IMAGEFORMING MATERIAL SUBSEQUENT TO BEING CONTACTED WITH AN AQUEOUS ALKALINE PROCESSING COMPOSITION; A POSITIVE COMPONENT INCLUDING A LEAST A DYEABLE STRATUM AND PREFERABLY ALSO A PH-reducing layer; and MEANS FOR PROVIDING A REFLECTING LAYER BETWEEN THE POSITIVE AND NEGATIVE COMPONENTS SO THAT A MULTICOLOR TRANSFER IMAGE IMPARTED TO THE DYEABLE STRATUM MAY BE VIEWED AS A REFLECTION PRINT WITHOUT SEPARATION OF THE POSITIVE AND NEGATIVE COMPONENT, WHICH MEANS MAY COMPRISE A PREFORMED LAYER DISPOSED BETWEEN THE NEGATIVE AND POSITIVE COMPONENTS OR A REAGENT OR COMBINATION OF REAGENTS TO BE APPLIED TO THE EXPOSED FILM UNIT TO PROVIDE THE REFLECTING LAYER; WHEREIN AT LEAST THE COATING SOLUTION EMPLOYED TO PROVIDE A SILVER HALIDE EMULSION LAYER CONTIGUOUS WITH SAID INTERLAYER INCLUDES AN ALKALI-DISSOCIABLE INORGANIC SALT TO OBTAIN GREATER TRANSFER OF THE ASSOCIATED DYE TO THE POSITIVE COMPONENT IN TERMS OF THE EXPOSED AREAS OF THE ASSOCIATED SILVER HALIDE LAYER.，下面是Dye diffusion transfer film containing alkali-dissociable inorganic salts专利的具体信息内容。
2. An element as defined in claim 1, wherein said first silver halide layer comprises a red-sensitive gelatino silver halide emulsion and said associated dye image-providing material is a cyan dye.
3. An element as defined in claim 2 wherein said second silver halide layer comprises a green-sensitive gelatino silver halide emulsion having a magenta dye image-providing material associated therewith and said green-sensitive gelatino silver halide emulsion layer includes effective amounts of an anionic polymeric material and an alkali-dissociable inorganic salt chosen from the group consisting of calcium chloride, calcium nitrate or mixtures of these.
4. In a photosensitive element comprising, in order, a layer of a cyan dye developer; a red-sensitive silver halide layer; a first interlayer; a layer of a magenta dye developer; a green-sensitive silver halide layer; a second interlayer; a layer of yellow dye developer; and a blue-seNsitive silver halide layer, at least said first interlayer comprising a coalesced essence of an aqueous film-forming polymer dispersion which is impermeable to said cyan dye developer and an alkali permeable material associated therewith and adapted to render said interlayer permeable to said dye developer subsequent to being contacted with an aqueous alkaline processing composition during a predetermined development period to develop said photosensitive element and to impart a color image to a dyeable stratum by diffusion transfer; the improvement which comprises including in said red-sensitive silver halide layer an alkali-dissociable inorganic salt chosen from the group consisting of potassium nitrate, ammonium nitrate, calcium chloride, calcium nitrate or mixtures of these in an amount sufficient to increase materially the amount of said cyan dye developer transferred to said dyeable stratum during said development period.
5. An element as defined in claim 4 wherein said cyan dye developer is a phthalocyanine dye developer.
6. In a photosensitive element comprising, in order, a layer of a phthalocyanine cyan dye developer; a red-sensitive gelatino silver iodobromide emulsion layer; a first interlayer; a layer of a 1:1 chrome-complexed azo magenta dye developer; a green-sensitive gelatino silver iodobromide emulsion layer; a second interlayer; a layer of a 1:1 chrome-complexed azomethine yellow dye developer; and a blue-sensitive gelatino silver iodobromide emulsion layer, at least said first interlayer comprising a coalesced essence of an aqueous film-forming polymer dispersion which is impermeable to said cyan dye developer and an alkali permeable material associated therewith and adapted to render said interlayer permeable to said dye developer subsequent to being contacted with an aqueous alkaline processing composition during a predetermined development period to develop said photosensitive element and to impart a color image to a dyeable stratum by diffusion transfer; the improvement which comprises including in said red-sensitive silver halide layer alkali-dissociable inorganic salt chosen from the group consisting of potassium nitrate, ammonium nitrate, calcium chloride, calcium nitrate, or mixtures of these in an amount sufficient to increase materially the amount of said cyan dye developer transferred to said dyeable stratum during said development period.
7. An element as defined in claim 6 wherein said green-sensitive gelatino silver iodobromide emulsion layer includes an anionic polymeric material and an effective amount of an alkali-dissociable inorganic salt chosen from the group consiting of calcium chloride, calcium nitrate or a mixture of these.
8. An element as defined in claim 6 wherein said dyeable stratum is disposed in said film unit on the side of said blue-sensitive emulsion layer opposed from said layer of yellow dye developer.
9. A film unit adapted for forming multicolor transfer images comprising: a negative component comprising a blue-sensitive, a green-sensitive and a red-sensitive gelatino silver halide emulsion having associated therewith in a contiguous layer, respectively, a yellow dye developer, a magenta dye developer and a cyan dye developer, at least said green- and red-sensitive emulsion layers and associated dye developer layers being separated from each other by an interlayer comprising a dye impermeable coalesced essence of an aqueous film-forming polymer dispersion and a processing composition permeable material associated therewith and adapted to render the interlayer permeable to solubilized dye image-forming material subsequent to being contacted with an aqueous alkaline processing composition; a positive component including at least a dyeable stratum; and means for providing a reflecting layer between the positive and negative components so that a multicolor transfer image imparted to the dyeable stratum may be viewed as a reflection print without separation of the positive and negative component, which means may comprise a preformed layer disposed between the negative and positive components or a reagent or combination of reagents to be applied to the exposed film unit to provide the reflecting layer; wherein at least the coating solution employed to provide said red-sensitive silver halide emulsion layer includes an alkali-dissociable inorganic salt chosen from the group consisting of potassium nitrate, ammonium nitrate, calcium chloride, calcium nitrate or mixtures of these to obtain greater transfer of the associated dye to the positive component in terms of unexposed areas of the associated silver halide layer.
10. A film unit as defined in claim 9 wherein said green-sensitive silver halide emulsion layer includes an anionic polymeric material and an alkali-dissociable inorganic salt chosen from the group consisting of calcium chloride, calcium nitrate or mixtures of these.
11. A film unit as defined in claim 10 wherein said polymeric material is polyvinyl hydrogen phthalate.
12. In an integral negative-positive film unit including a negative component comprising at least one light-sensitive silver halide emulsion layer having a dye developer associated therewith; a positive component including at least a dyeable stratum; and means for applying a reflecting layer between said positive and negative components in an amount sufficient, upon development of said film unit, to mask effectively said negative component and to provide a background for viewing a color transfer image imparted to said dyeable stratum of said positive component by reflected light; the improvement which comprises employing as said negative component an element as defined in claim 1.
13. A film unit as defined in claim 12 including means for applying an aqueous alkaline processing composition to develop said film unit.
14. A film unit as defined in claim 13 wherein said processing composition includes a reflecting agent.
15. A film unit as defined in claim 12 wherein said negative and positive components are confined between a pair of support members, at least the support member associated with the positive component being transparent.
16. A photographic film unit which comprises, in combination: a photosensitive element including a composite structure containing, as essential layers, in sequence, a dimensionally stable alkaline solution impermeable opaque layer; a layer of a phthalocyanine dye developer; a red-sensitive gelatino silver iodobromide emulsion layer containing an effective amount of alkali-dissociable inorganic salt chosen from the group consisting of potassium nitrate, ammonium nitrate, calcium chloride, calcium nitrate or mixtures of these; a first spacer layer comprising a coalesced essence of an aqueous film-forming polymer dispersion which is impermeable to said cyan dye developer and an alkali permeable material associated therewith and adapted to render said spacer layer permeable to said dye developer subsequent to being contacted with an aqueous alkaline processing composition; a layer of a magenta dye developer; a green-sensitive gelatino silver iodobromide emulsion layer including an effective amount of polyvinyl hydrogen phthalate and an alkali-dissociable inorganic salt chosen from the group consisting of calcium chloride, calcium nitrate or a mixture of these; a second spacer layer; a layer of a yellow dye developer; a blue-sensitive gelatino silver iodobromide emulsion layer; a third spacer layer; a dyeable stratum; a polymeric acid layer containing sufficient acidifying groups to effect reduction of a processing solution having a first pH at which said dye developers are soluble and diffusible to a second pH at which said dye developers are substantially insoluble and non-diffusible; a dimensionally stable alkaline solution impermeable transparent layer; means securing at least the side edges of said opposed layers in fixed relationship; and a rupturable container retaining an aqueous alkaline Processing solution having said first pH and containing dispersed therein a white inorganic pigment in a quantity sufficient to mask effectively said silver halide layers and any dye developer associated therewith after development and to provide a background for viewing a diffusion transfer image formed by development of said film unit, by reflected light, through said transparent layer, said rupturable container being fixedly positioned and extending transverse a leading edge of said photosensitive element so as to be capable of effecting unidirectional discharge of the container''s contents between said dyeable stratum and said third spacer layer upon application of compressive force to said container.
17. A film unit as defined in claim 16 wherein said second spacer layer also comprises a dye impermeable coalesced essence of an aqueous film-forming polymer dispersion and a processing composition permeable material associated therewith and adapted to render said spacer layer permeable to solubilized dye developer subsequent to being contacted with an aqueous alkaline processing composition.
18. A film unit as defined in claim 17 wherein said magenta dye developer comprises a 1:1 chrome-complexed azo dye developer and said yellow dye developer comprises a 1:1 chrome-complexed azomethine dye developer.
19. A film unit a defined in claim 18 wherein said third spacer layer comprises gelatin and said film unit further includes a timing layer disposed between said dyeable stratum and said polymeric acid layer.
20. A photographic film unit which comprises, in combination: a photosensitive element including a composite structure containing, as essential layers, in sequence, a dimensionally stable alkaline solution impermeable opaque layer; a layer of a phthalocyanine dye developer; a red-sensitive gelatino silver iodobromide emulsion layer containing an effective amount of alkali-dissociable inorganic salt chosen from the group consisting of potassium nitrate, ammonium nitrate, calcium chloride or a mixture of these; a first spacer layer comprising a coalesced essence of an aqueous film-forming polymer dispersion which is impermeable to said cyan dye developer and an alkali permeable material associated therewith and adapted to render said spacer layer permeable to said dye developer subsequent to being contacted with an aqueous alkaline processing composition; a layer of a magenta dye developer comprising a 1:1 chrome complexed azo dye developer; a green-sensitive gelatino silver iodobromide emulsion layer including an effective amount of polyvinyl hydrogen phthalate and an alkali-dissociable inorganic salt chosen from the group consisting of calcium chloride, calcium nitrate or a mixture of these; a second spacer layer; a layer of a yellow dye developer comprising a 1:1 chrome complexed azomethine dye developer; a blue-sensitive gelatino silver iodobromide emulsion layer; a third spacer layer; a dyeable stratum; a polymeric acid layer containing sufficient acidifying groups to effect reduction of a processing solution having a first pH at which said dye developers are soluble and diffusible to a second pH at which said dye developers are substantially insoluble and non-diffusible; a dimensionally stable alkaline solution impermeable transparent layer; means securing at least the side edges of said opposed layers in fixed relationship; and a rupturable container retaining an aqueous alkaline processing solution having said first pH and containing dispersed therein a white inorganic pigment in a quantity sufficient to mask effectively said silver halide layers and any dye developer associated therewith after development and to provide a background for viewing a diffusion transfer image formed by development of said film unit, by reflected light, through said transparent layer, said rupturable container being fixedly positioned and extending transverse a leading edge of said photosensitive element so as to be capable of effecting uNidirectional discharge of the container''s contents between said dyeable stratum and said third spacer layer upon application of compressive force to said container.
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