GB503077A - Improvements in colour photography - Google Patents

Improvements in colour photography

Info

Publication number
GB503077A
GB503077A GB23689/37A GB2368937A GB503077A GB 503077 A GB503077 A GB 503077A GB 23689/37 A GB23689/37 A GB 23689/37A GB 2368937 A GB2368937 A GB 2368937A GB 503077 A GB503077 A GB 503077A
Authority
GB
United Kingdom
Prior art keywords
colour
dyestuff
aug
specifications
produced
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
GB23689/37A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Publication of GB503077A publication Critical patent/GB503077A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03CPHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C7/00Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
    • G03C7/30Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)

Abstract

503,077. Colour photography I. G. FARBENINDUSTRIE AKT.-GES. Aug. 30, 1937, No. 23689. Convention date, Aug. 29, 1936: [Class 98 (ii)] In a process for producing photographic multi-colour pictures, there is used for exposure a material which carries silver halide emulsions sensitive to different spectral regions all or a part of which emulsions contain dyestuff formers fast to diffusion which can be converted into dyestuffs by colour development, the exposed material is subjected to colour development, and the originals thus produced are further copied on dyestuff bleaching-out layers. Dyestuff formers for use in the exposure material are described in Specifications 458,400, 465,823, and 479,838. Suitable dyestuff bleaching-out layers are produced by the processes described in Specifications 341,371, 343,212, 348,102, 348,232, 352,196, 388,670, and 426,346.
GB23689/37A 1936-08-29 1937-08-30 Improvements in colour photography Expired GB503077A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE503077X 1936-08-29

Publications (1)

Publication Number Publication Date
GB503077A true GB503077A (en) 1939-03-30

Family

ID=6546003

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23689/37A Expired GB503077A (en) 1936-08-29 1937-08-30 Improvements in colour photography

Country Status (2)

Country Link
FR (1) FR826044A (en)
GB (1) GB503077A (en)

Also Published As

Publication number Publication date
FR826044A (en) 1938-03-21

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