GB1243539A - Photographic dye developer diffusion transfer process and materials therefor - Google Patents

Photographic dye developer diffusion transfer process and materials therefor

Info

Publication number
GB1243539A
GB1243539A GB4951268A GB4951268A GB1243539A GB 1243539 A GB1243539 A GB 1243539A GB 4951268 A GB4951268 A GB 4951268A GB 4951268 A GB4951268 A GB 4951268A GB 1243539 A GB1243539 A GB 1243539A
Authority
GB
United Kingdom
Prior art keywords
catechol
diffusion transfer
dye developer
transfer process
materials therefor
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
GB4951268A
Inventor
Paul Harold Stewart
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 GB1243539A publication Critical patent/GB1243539A/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
    • G03C8/10—Photosensitive materials characterised by the image-forming section the substances transferred by diffusion consisting of organic compounds of dyes or their precursors
    • G03C8/12—Photosensitive materials characterised by the image-forming section the substances transferred by diffusion consisting of organic compounds of dyes or their precursors characterised by the releasing mechanism
    • G03C8/14—Oxidation of the chromogenic substances
    • G03C8/16—Oxidation of the chromogenic substances initially diffusible in alkaline environment

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1,243,539. Colour photography. EASTMAN KODAK CO. Oct. 18, 1968 [Oct. 19, 1967], No. 49512/68. Heading G2C. Dye developer diffusion transfer processes are carried out in the presence of at least 0.3 millimoles per sq. ft. of catechol or a colourless, nuclear-substituted catechol which is a developing agent and is soluble in the aqueous alkaline processing liquid. The optionally substituted catechol may be in the photographic material, the processing liquid or the receiving sheet or layer. Preferably the process and materials used are similar to those described in Specification 1, 003, 675 but using the catechol in place of the hydroquinone described in this Specification.
GB4951268A 1967-10-19 1968-10-18 Photographic dye developer diffusion transfer process and materials therefor Expired GB1243539A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US67660367A 1967-10-19 1967-10-19

Publications (1)

Publication Number Publication Date
GB1243539A true GB1243539A (en) 1971-08-18

Family

ID=24715179

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4951268A Expired GB1243539A (en) 1967-10-19 1968-10-18 Photographic dye developer diffusion transfer process and materials therefor

Country Status (3)

Country Link
BE (1) BE722298A (en)
FR (1) FR1599790A (en)
GB (1) GB1243539A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3549946A4 (en) * 2016-11-29 2020-10-21 Spiber Inc. Protein composition, method for producing same and method for improving heat stability

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3549946A4 (en) * 2016-11-29 2020-10-21 Spiber Inc. Protein composition, method for producing same and method for improving heat stability
US11142553B2 (en) 2016-11-29 2021-10-12 Spiber Inc. Protein composition, method for producing same and method for improving heat stability

Also Published As

Publication number Publication date
BE722298A (en)
FR1599790A (en) 1970-07-20

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