GB403257A - Improvements in colour photography - Google Patents

Improvements in colour photography

Info

Publication number
GB403257A
GB403257A GB886333A GB886333A GB403257A GB 403257 A GB403257 A GB 403257A GB 886333 A GB886333 A GB 886333A GB 886333 A GB886333 A GB 886333A GB 403257 A GB403257 A GB 403257A
Authority
GB
United Kingdom
Prior art keywords
panchromatic
film
developing
street
colour
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
GB886333A
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.)
REGINALD ARTHUR RODGERS
Original Assignee
REGINALD ARTHUR RODGERS
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 REGINALD ARTHUR RODGERS filed Critical REGINALD ARTHUR RODGERS
Priority to GB886333A priority Critical patent/GB403257A/en
Publication of GB403257A publication Critical patent/GB403257A/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
    • G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
    • G03C7/26—Silver halide emulsions for subtractive colour processes

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)

Abstract

403,257. Colour photography; developing. FINNIGAN, W., 1, Little Essex Street, Strand, London, and RODGERS, R. A., 24B, Prince Albert Street, Brighton. March 23, 1933, No. 8863. [Class 98 (ii).] In the production of a bipack for making component colour-record negatives, comprising an ordinary blue-sensitive plate or film which may be dyed a reddish tint, superimposed on a panchromatic plate or film, the rear element is rendered panchromatic by treatment with a solution, in alcohol and water, containing dicyanine, homocol, pinaverdol, pinacyanol and ammonia. After exposure, the plates or films are developed, either in the dark or after desensitising, preferably with a pyrocatechin developer containing also an alkaline sulphite and a phosphate. Formulae for the panchromatising and developing baths are given in the Specification.
GB886333A 1933-03-23 1933-03-23 Improvements in colour photography Expired GB403257A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB886333A GB403257A (en) 1933-03-23 1933-03-23 Improvements in colour photography

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB886333A GB403257A (en) 1933-03-23 1933-03-23 Improvements in colour photography

Publications (1)

Publication Number Publication Date
GB403257A true GB403257A (en) 1933-12-21

Family

ID=9860702

Family Applications (1)

Application Number Title Priority Date Filing Date
GB886333A Expired GB403257A (en) 1933-03-23 1933-03-23 Improvements in colour photography

Country Status (1)

Country Link
GB (1) GB403257A (en)

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