GB1093177A - Improved silver complex diffusion transfer process - Google Patents

Improved silver complex diffusion transfer process

Info

Publication number
GB1093177A
GB1093177A GB51235/64A GB5123564A GB1093177A GB 1093177 A GB1093177 A GB 1093177A GB 51235/64 A GB51235/64 A GB 51235/64A GB 5123564 A GB5123564 A GB 5123564A GB 1093177 A GB1093177 A GB 1093177A
Authority
GB
United Kingdom
Prior art keywords
layer
silver halide
transfer process
diffusion transfer
dec
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
GB51235/64A
Inventor
Louis Maria De Haes
Jozef Frans Willems
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.)
Gevaert Photo Producten NV
Original Assignee
Gevaert Photo Producten NV
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 BE43243A external-priority patent/BE641298A/xx
Application filed by Gevaert Photo Producten NV filed Critical Gevaert Photo Producten NV
Publication of GB1093177A publication Critical patent/GB1093177A/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
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
    • G03C5/29—Development processes or agents therefor
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photosensitive Polymer And Photoresist Processing (AREA)

Abstract

1,093,177. Photographic process. GEVAERT PHOTO-PRODUCTEN N. V. Dec. 16, 1964 [Dec. 16, 1963], No. 51235/64. Heading G2C. Silver halide complex diffusion transfer process comprises bringing a material comprising an imagewise exposed silver halide layer into contact with an image receiving layer comprising development nuclei and/or substances capable of forming such nuclei in situ, in the presence of a silver halide complexing agent, developing with an aqueous alkali solution and separating the layers, at least one of said materials, or said materials inter se, containing, as developers a 3 - pyrazolldone and either gallic acid, pyrogallol, gentisic acid, glucose or furoin. The developing solution may contain an alkali hydroxide, phosphate or carbonate, a further developer, KBr, calcium sequestering agents or black toning agents. Image receiving sheet preferably comprises supported layer of water-permeable colloid or latex, (e. g. carboxymethyl cellulose or its chromium salt) development nuclei pigments, colloidal silica, preserving agent (e. g. a bisulphite, metabisulphite or aldehyde bisulphite), Na 2 SO 3 , silver halide complexing agent (e. g. hypo), or black toning agents. In an embodiment the light-sensitive layer may be overcoated with a layer of waterpermeable colloid, or the light-sensitive and receiving layers may be in one multi-layer material.
GB51235/64A 1963-12-16 1964-12-16 Improved silver complex diffusion transfer process Expired GB1093177A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE43243A BE641298A (en) 1963-12-16 1963-12-16

Publications (1)

Publication Number Publication Date
GB1093177A true GB1093177A (en) 1967-11-29

Family

ID=3840397

Family Applications (1)

Application Number Title Priority Date Filing Date
GB51235/64A Expired GB1093177A (en) 1963-12-16 1964-12-16 Improved silver complex diffusion transfer process

Country Status (1)

Country Link
GB (1) GB1093177A (en)

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