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CH197200A - 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
CH197200A
CH197200A CH197200DA CH197200A CH 197200 A CH197200 A CH 197200A CH 197200D A CH197200D A CH 197200DA CH 197200 A CH197200 A CH 197200A
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 CH197200A publication Critical patent/CH197200A/en

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Description

  

  Verfahren zur Herstellung eines sauren     Wollfarbstoffes.       Vorliegendes     Patent    bezieht     s%ch    auf ein  Verfahren zur     Herstellung    eines sauren Woll  farbstoffes, dadurch     gekennzeichnet,        dass     man     1-Chlor-2-nitrobenzol-4-propylsulfon    mit       3-Aminocarbazo1-6'=sulfonsäure    kondensiert.  



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



  <I>Beispiel:</I>  28,4 Teile     3-aminocarbazol-6-sulfonsaures     Natrium werden in der zehnfachen Menge  Wasser .gelöst. Hierauf     fügt    man 26,3     Teile          1.-Chlor-2-nitrobenzol-4-propylsulfon    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-nitrobenzene-4-propylsulfone is condensed with 3-aminocarbazo1-6 '= sulfonic acid.



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



  <I> Example: </I> 28.4 parts of 3-aminocarbazole-6-sulfonic acid sodium are dissolved in ten times the amount of water. 26.3 parts of 1-chloro-2-nitrobenzene-4-propylsulphone in about 160 parts of alcohol and 10 parts of sodium acetate are then 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-propylsulfon mit a-Aminocarbazol-6-sulfonsäure kondensiert. Der so erhaltene Farbstoff färbt Wolle aus saurem Bade in orangegelben Tönen von sehr guter Egalität und hervorragender Licht echtheit. Claim: A process for the production of an acidic wool dye, characterized in that 1-chloro-2-nitrobenzene-4-propylsulfone is condensed with α-aminocarbazole-6-sulfonic acid. The dye obtained in this way dyes wool from an acid bath in orange-yellow shades of very good Equality and excellent light fastness.
CH197200D 1935-09-17 1936-08-31 Process for the production of an acidic wool dye. CH197200A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE197200X 1935-09-17
CH193627T 1937-12-13

Publications (1)

Publication Number Publication Date
CH197200A true CH197200A (en) 1938-04-15

Family

ID=25722561

Family Applications (1)

Application Number Title Priority Date Filing Date
CH197200D CH197200A (en) 1935-09-17 1936-08-31 Process for the production of an acidic wool dye.

Country Status (1)

Country Link
CH (1) CH197200A (en)

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