CH197199A - Process for the production of an acidic wool dye. - Google Patents

Process for the production of an acidic wool dye.

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Publication number
CH197199A
CH197199A CH197199DA CH197199A CH 197199 A CH197199 A CH 197199A CH 197199D A CH197199D A CH 197199DA CH 197199 A CH197199 A CH 197199A
Authority
CH
Switzerland
Prior art keywords
production
dye
acidic
wool dye
acidic wool
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellsc Farbenindustrie
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 CH197199A publication Critical patent/CH197199A/en

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Description

  

  Verfahren zur Herstellung eines sauren     Wollfarbstoffes.       Vorliegendes Patent     bezieht    .sich auf     ein     Verfahren zur     Herstellung    eines sauren     Woll-          farbstoffes,        dadurch        gekennzeichnet,        dass     man     1-Chlor-2-nitrobenzal-4-äthylsulfon    mit       3-Aminocarbazol-6-sulfonsäure        kondensiert.     



  Der so     erhaltene    Farbstoff färbt Wolle  aus saurem Bade in orangegelben Tönen von  sehr     guter    Egalität und hervorragender Licht  echtheit.  



       Beispiel:     28,4 Teile     3-aminocarbazol-6-sulfonsaures     Natrium werden in der zehnfachen Menge  Wasser gelöst. Hierauf     fügt-        nian    25 Teile       1-Chlor-2-nitrobenzol-4-äthylsulfon    in     etwa     160     Teilen    Alkohol und 10 Teile     Natrium-          acetat    zu     und    erhitzt die Mischung mehrere  Stunden     unter        Rückfluss    zum Sieden.

       Dann            wird    der Alkohol     abdestilliert    und der ge  bildete Farbstoff aus der wässerigen Lösung  durch Eindampfen oder     Aussalzen    abgeschie  den.



  Process for the production of an acidic wool dye. The present patent relates to a process for the production of an acidic wool dye, characterized in that 1-chloro-2-nitrobenzal-4-ethylsulfone is condensed with 3-aminocarbazole-6-sulfonic acid.



  The dye obtained in this way dyes wool from an acid bath in orange-yellow shades of very good levelness and excellent lightfastness.



       Example: 28.4 parts of 3-aminocarbazole-6-sulfonic acid sodium are dissolved in ten times the amount of water. Then 25 parts of 1-chloro-2-nitrobenzene-4-ethylsulfone in about 160 parts of alcohol and 10 parts of sodium acetate are added and the mixture is refluxed for several hours.

       The alcohol is then distilled off and the dye formed is deposited from the aqueous solution by evaporation or salting out.

Claims (1)

PATENTANSPRUCH Verfahren zur Herstellung eines. sauren Wollfarbstoffes, dadurch gekennzeichnet, dass man 1-Chlor-2-nitrobenzol-4-äthylsulfon mit 3-Aminocarbazol-6-sulfonsäure kondensiert. Der so erhaltene Farbstoff färbt Wolle aus saurem. Bade in orangegelben Tönen von. sehr guter Egalität und hervorragender Licht echtheit: PATENT CLAIM Method for producing a. acidic wool dye, characterized in that 1-chloro-2-nitrobenzene-4-ethylsulfone is condensed with 3-aminocarbazole-6-sulfonic acid. The dye thus obtained dyes wool from acid. Bathe in orange-yellow tones of. very good levelness and excellent light fastness:
CH197199D 1935-09-17 1936-08-31 Process for the production of an acidic wool dye. CH197199A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE197199X 1935-09-17
CH193627T 1937-12-13

Publications (1)

Publication Number Publication Date
CH197199A true CH197199A (en) 1938-04-15

Family

ID=25722560

Family Applications (1)

Application Number Title Priority Date Filing Date
CH197199D CH197199A (en) 1935-09-17 1936-08-31 Process for the production of an acidic wool dye.

Country Status (1)

Country Link
CH (1) CH197199A (en)

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