GB975939A - Process for the manufacture of photographic colour images and colour correction - Google Patents

Process for the manufacture of photographic colour images and colour correction

Info

Publication number
GB975939A
GB975939A GB3970760A GB3970760A GB975939A GB 975939 A GB975939 A GB 975939A GB 3970760 A GB3970760 A GB 3970760A GB 3970760 A GB3970760 A GB 3970760A GB 975939 A GB975939 A GB 975939A
Authority
GB
United Kingdom
Prior art keywords
colour
manufacture
photographic
images
correction
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
GB3970760A
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
Application filed by Gevaert Photo Producten NV filed Critical Gevaert Photo Producten NV
Publication of GB975939A publication Critical patent/GB975939A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D231/00—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings
    • C07D231/02—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings
    • C07D231/10—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
    • C07D231/14—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D231/44—Oxygen and nitrogen or sulfur and nitrogen atoms
    • C07D231/46—Oxygen atom in position 3 or 5 and nitrogen atom in position 4
    • C07D231/48—Oxygen atom in position 3 or 5 and nitrogen atom in position 4 with hydrocarbon radicals attached to said nitrogen atom
    • 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
    • G03C7/18—Processes for the correction of the colour image in subtractive colour photography
    • 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
    • G03C7/30—Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials
    • G03C7/32—Colour coupling substances
    • G03C7/34—Couplers containing phenols
    • G03C7/344—Naphtholic couplers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)

Abstract

N - (31 - Carboxy - 41 - cetylsulphonylphenyl) -1-hydroxy-2-naphthamide is prepared by reacting 2-chloro-5-nitrobenzoic acid with cetyl mercaptan in the presence of potassium hydroxide, dissolving the 2-cetylmercapto-compound formed in acetic acid and oxidizing it with hydrogen peroxide to give 2-cetylsulphonyl - 5 - nitrobenzoic acid, reducing this to the corresponding amine with catalytic hydrogen, and condensing the amine with phenyl 1-hydroxy-2-naphthoate and distilling off the phenol formed. Specifications 831,731, 880,862, 906,908, 939,030 and 975,930 are referred to.
GB3970760A 1959-11-20 1960-11-18 Process for the manufacture of photographic colour images and colour correction Expired GB975939A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE584846A BE584846A (en) 1959-11-20 1959-11-20 Process for the production of photographic color images.

Publications (1)

Publication Number Publication Date
GB975939A true GB975939A (en) 1964-11-25

Family

ID=3845132

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3970760A Expired GB975939A (en) 1959-11-20 1960-11-18 Process for the manufacture of photographic colour images and colour correction

Country Status (4)

Country Link
BE (1) BE584846A (en)
DE (1) DE1109522B (en)
GB (1) GB975939A (en)
NL (1) NL258152A (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE930795C (en) * 1940-07-16 1955-07-25 Agfa Ag Fuer Photofabrikation Process for the production of color photographic images
NL104735C (en) * 1956-06-22

Also Published As

Publication number Publication date
NL258152A (en)
DE1109522B (en) 1961-06-22
BE584846A (en) 1960-05-20

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