GB746186A - Improvements in processes of photographic reproduction and in light-sensitive materials therefor - Google Patents

Improvements in processes of photographic reproduction and in light-sensitive materials therefor

Info

Publication number
GB746186A
GB746186A GB12183/53A GB1218353A GB746186A GB 746186 A GB746186 A GB 746186A GB 12183/53 A GB12183/53 A GB 12183/53A GB 1218353 A GB1218353 A GB 1218353A GB 746186 A GB746186 A GB 746186A
Authority
GB
United Kingdom
Prior art keywords
layer
silver halide
support
developer
sulphite
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB12183/53A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kodak Ltd
Original Assignee
Kodak Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US285855A external-priority patent/US2725298A/en
Application filed by Kodak Ltd filed Critical Kodak Ltd
Priority claimed from US430424A external-priority patent/US2831766A/en
Publication of GB746186A publication Critical patent/GB746186A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C8/00—Diffusion transfer processes or agents therefor; Photosensitive materials for such processes
    • G03C8/24—Photosensitive materials characterised by the image-receiving section
    • G03C8/26—Image-receiving layers
    • G03C8/28—Image-receiving layers containing development nuclei or compounds forming such nuclei
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/04—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with macromolecular additives; with layer-forming substances
    • G03C1/043—Polyalkylene oxides; Polyalkylene sulfides; Polyalkylene selenides; Polyalkylene tellurides

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Paints Or Removers (AREA)
  • Color Printing (AREA)

Abstract

746,186. Photographic light-sensitive material and reproduction transfer therewith. KODAK, Ltd. May 1, 1953 [May 3, 1952], No. 12183/53. Class 98 (2). A support bears a light-sensitive silver halide emulsion layer and an unsensitized unhardened layer of colloidal binder, such as gelatin or polyvinyl alcohol, having dispersed therein an agent for promoting image formation such as nuclei or a chemical precipitant for dissolved silver ions. The silver halide emulsion layer may contain a non-diffusing tanning developing agent, and between such layer and the support there may be present a layer containing a silver halide solvent or such in a form as of barium sulphite which liberates the solvent by action of an alkaline developer. Alternatively a layer of completely exposed silver halide emulsion containing a non-diffusing tanning developing agent, and if desired baryta, and a silver halide solvent, may lie between the silver halide emulsion layer arid the support. In use the material is exposed to an object or image, developed in the presence of silver halide solvent, in the developer or in the material itself, whereby a positive image is formed in the upper, unsensitized layer, and this is pressed onto an absorbent support as of paper to transfer a portion of the unsensitized layer containing the positive image thereto. Successive transfers may be made to obtain duplicate images. If desired the unsensitized colloidal binder layer which eventually contains the positive image may be applied after, instead of before, exposure. In example (1) a gelatino-silver chloride emulsion on paper stock is overcoated with a gelatin layer containing colloidal zinc sulphide, exposed, developed in a metal-quinol developer containing hypo and chlorobenzotriazole for approximately one minute and pressed onto typewriter paper to place a positive imagecontaining layer thereon. Urea is present in the developer to increase softness of the gelatin image. Example 2 uses, similarly, a hardened gelatino-silver chloride emulsion overcoated with a polyvinyl alcohol layer containing cadmium sulphide. In example (3) a paper support being a layer made with barium sulphite instead of the usual baryta or barium sulphate is provided with a gelatino-silver chloride emulsion containing 3: 4-dihydroxy diphenyl as non- diffusing developer and then a gelatin-zinc sulphide layer as of example (1) and is exposed and developed in an alkaline urea solution containing a high proportion of sodium carbonate to release sodium sulphite from the barium sulphite and form a positive image in the zinc sulphide layer, a stratum of which is transferred to a receiving support as in example (1). A fourth example also describes the paperbarium sulphite-emulsion-zinc sulphide layer assembly, with special features whereby successive fractions of the top, zinc sulphide, layer may be transferred to a receiving support with little tendency for all of the layers to transfer at once. Specifications 655,273, 655,275, 725,667, 745,445 and 746,174 are referred to.
GB12183/53A 1952-05-03 1953-05-01 Improvements in processes of photographic reproduction and in light-sensitive materials therefor Expired GB746186A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US285855A US2725298A (en) 1952-05-03 1952-05-03 Transfer process of photographic printing
US430424A US2831766A (en) 1954-05-17 1954-05-17 Gelatin coating compositions
US430074A US2843485A (en) 1952-05-03 1954-05-17 Transfer process of photographic printing

Publications (1)

Publication Number Publication Date
GB746186A true GB746186A (en) 1956-03-14

Family

ID=32329791

Family Applications (2)

Application Number Title Priority Date Filing Date
GB12183/53A Expired GB746186A (en) 1952-05-03 1953-05-01 Improvements in processes of photographic reproduction and in light-sensitive materials therefor
GB14211/55A Expired GB804283A (en) 1952-05-03 1955-05-17 Improved coating compositions comprising gelatin, particularly for photography

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB14211/55A Expired GB804283A (en) 1952-05-03 1955-05-17 Improved coating compositions comprising gelatin, particularly for photography

Country Status (4)

Country Link
US (1) US2843485A (en)
BE (1) BE538152A (en)
FR (1) FR1132420A (en)
GB (2) GB746186A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3511656A (en) * 1955-03-31 1970-05-12 Dick Co Ab Single sheet lithographic dtr master and method of use
US3248219A (en) * 1960-09-06 1966-04-26 Cons Electrodynamics Corp Photographic element for dry processing
NL263591A (en) * 1961-04-13
BE638911A (en) * 1962-10-16
US3364024A (en) * 1963-06-24 1968-01-16 Eastman Kodak Co Photographic process
GB1053568A (en) * 1964-08-20
US3464822A (en) * 1965-09-13 1969-09-02 Du Pont Process for making electrically conductive images
US3547641A (en) * 1966-06-20 1970-12-15 Du Pont Planographic offset printing masters
GB1241661A (en) * 1967-06-19 1971-08-04 Agfa Gevaert Method for the preparation of printing plates
DE1906296C3 (en) * 1969-02-08 1980-05-29 Agfa-Gevaert Ag, 5090 Leverkusen Silver salt diffusion process
GB1509175A (en) * 1974-04-11 1978-04-26 Agfa Gevaert Production of adhesive transfers using photographic diffusion transfer
US4407932A (en) * 1981-03-12 1983-10-04 Minnesota Mining & Manufacturing Co. Fade-resistant and abrasion resistant photographic reproduction, method of preparing, and photographic product therefor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE453237A (en) * 1939-11-02
US2543181A (en) * 1947-01-15 1951-02-27 Polaroid Corp Photographic product comprising a rupturable container carrying a photographic processing liquid
BE485609A (en) * 1947-11-04 1942-11-12
US2647056A (en) * 1948-02-12 1953-07-28 Polaroid Corp One step photographic transfer process

Also Published As

Publication number Publication date
FR1132420A (en) 1957-03-11
US2843485A (en) 1958-07-15
GB804283A (en) 1958-11-12
BE538152A (en)

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