GB1477376A - Photographic silver halide colour process - Google Patents

Photographic silver halide colour process

Info

Publication number
GB1477376A
GB1477376A GB5266474A GB5266474A GB1477376A GB 1477376 A GB1477376 A GB 1477376A GB 5266474 A GB5266474 A GB 5266474A GB 5266474 A GB5266474 A GB 5266474A GB 1477376 A GB1477376 A GB 1477376A
Authority
GB
United Kingdom
Prior art keywords
dye
silver halide
silver
redox
image
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
GB5266474A
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.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
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
Application filed by Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of GB1477376A publication Critical patent/GB1477376A/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
    • G03C8/02—Photosensitive materials characterised by the image-forming section
    • G03C8/08—Photosensitive materials characterised by the image-forming section the substances transferred by diffusion consisting of organic compounds
    • 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
    • G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
    • G03C7/28—Silver dye bleach processes; Materials therefor; Preparing or processing such materials
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
    • Y10S430/156—Precursor compound
    • Y10S430/159—Development dye releaser, DDR

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)

Abstract

1477376 Photographic silver halide colour process EASTMAN KODAK CO 5 Dec 1974 [6 Dec 1973] 52664/74 Heading G2C A photo-sensitive material comprising a support bearing at least one silver halide emulsion layer and a non-diffusible redox dye releaser, i.e. compounds which will redox with oxidized developing agent and then release a diffusible dye, for example by alkaline hydrolysis, in the emulsion layer or a layer adjacent thereto is imagewise exposed, treated with an alkaline processing composition in the presence of a silver halide developing agent to form a silver image and an imagewise distribution of diffusible dye which diffuses out of the material, treated with a silver-dye-bleach bath to decolourize any imagewise released dye which has not diffused out of the material and then treated to remove the silver image and silver halide and leave a dye image which is negative in relation to the silver image. The redox dye releaser may have the Formula:- where Z is a bleachable dye moiety having a predominant spectral absorption within the region of the visible spectrum to which the associated silver halide emulsion is sensitive or a precursor of such a dye; Ballast is an organic ballasting group; G is OR or NHR'; R is H or a hydrolyzable moiety; R' is H, 1-22C cycloalkyl or optionally substituted alkyl; n is 0 or 1 and is I when G is OR or when R' is H or alkyl having less than 8C; and Y is H or completes a fused aromatic ring. Other redox dye releasers are described and claimed in Specifications 1458471; 1465183 and 1465184. The above process can also be used to form colour transfer images. In Example III a combined silver-dyebleach and bleach-fix bath is used.
GB5266474A 1973-12-06 1974-12-05 Photographic silver halide colour process Expired GB1477376A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US422390A US3923510A (en) 1973-12-06 1973-12-06 Process for producing color images by bleaching redox diffusible dye releasers

Publications (1)

Publication Number Publication Date
GB1477376A true GB1477376A (en) 1977-06-22

Family

ID=23674681

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5266474A Expired GB1477376A (en) 1973-12-06 1974-12-05 Photographic silver halide colour process

Country Status (7)

Country Link
US (1) US3923510A (en)
JP (1) JPS5092133A (en)
BE (1) BE823080A (en)
CA (1) CA1052613A (en)
DE (1) DE2457307A1 (en)
FR (1) FR2254046B1 (en)
GB (1) GB1477376A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2368064A1 (en) * 1976-10-15 1978-05-12 Kodak Pathe PROCESS FOR FORMING IMAGES IN
DE2733112A1 (en) * 1977-07-22 1979-02-08 Agfa Gevaert Ag PHOTOGRAPHIC COLOR DIFFUSION TRANSFER PROCESS
DE2848455A1 (en) * 1977-11-10 1979-05-17 Eastman Kodak Co PHOTOGRAPHIC RECORDING MATERIAL
FR2414745A1 (en) * 1978-01-11 1979-08-10 Kodak Pathe Diffusion transfer photographic process - using ballasted coupler which forms diffusible gp. by reaction with primary aromatic amine developer
US4256826A (en) * 1978-08-14 1981-03-17 Eastman Kodak Company Bleach-fix sheets
JPS59177553A (en) * 1983-03-28 1984-10-08 Fuji Photo Film Co Ltd Silver halide color photosensitive material

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US351673A (en) * 1886-10-26 Device for hanging picture-frames
US2728290A (en) * 1953-03-31 1955-12-27 Eastman Kodak Co Photographic reproduction process, including transfer of azo dyes
US3498787A (en) * 1965-08-20 1970-03-03 Eastman Kodak Co Rapid dye-bleach photographic process and element comprising dye-developers
US3503741A (en) * 1966-11-04 1970-03-31 Eastman Kodak Co Silver-dye-bleach process utilizing formazan dyes
US3751406A (en) * 1967-07-24 1973-08-07 Polaroid Corp Azo compounds useful in photographic processes
US3698897A (en) * 1971-07-06 1972-10-17 Eastman Kodak Co Diffusion transfer processes and film units comprising compounds which are cleavable upon oxidation in alkali media to produce diffusible dyes or dye precursors
US3725062A (en) * 1971-07-06 1973-04-03 Eastman Kodak Co Color diffusion processes utilizing hydroquinones which provide dye image materials upon oxidation in alkaline conditions
BE789689A (en) * 1971-10-04 1973-04-04 Eastman Kodak Co PHOTOSENSITIVE ELEMENT AND ITS APPLICATION TO COLOR PHOTOGRAPHY BY DIFFUSION-TRANSFER

Also Published As

Publication number Publication date
JPS5092133A (en) 1975-07-23
US3923510A (en) 1975-12-02
FR2254046A1 (en) 1975-07-04
BE823080A (en) 1975-06-06
FR2254046B1 (en) 1976-10-22
CA1052613A (en) 1979-04-17
DE2457307A1 (en) 1975-06-19

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee