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CH197203A - Process for the production of an acidic wool dye. - Google Patents

Process for the production of an acidic wool dye.

Info

Publication number
CH197203A
CH197203A CH197203DA CH197203A CH 197203 A CH197203 A CH 197203A CH 197203D A CH197203D A CH 197203DA CH 197203 A CH197203 A CH 197203A
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 CH197203A publication Critical patent/CH197203A/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-nitrobenzol-4-propylsulfon    mit       3-Amino-N-äthylcarbazol-6-sulfonsäure    kon  densiert.  



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



  <I>Beispiel:</I>  31,2     Teile        3-amino-N-äthylcarbazol-6-sul-          fonsaures    Natrium werden in der zehnfachen  Menge Wasser gelöst. Hierauf fügt man  26,3 Teile     1-Chlor-2-nitrobenzol-4-propylsul-          fon    in etwa 160     Teilen    Alkohol und 10     Teile          Natriumacetat    zu und erhitzt die Mischung  mehrere     Stunden        unter        Rückfluss    zum Sie-    den.

   Dann wird der Alkohol     abdestilliert     und der     gebildete    Farbstoff     aus    der wässe  rigen Lösung durch Eindampfen oder Gus  salzen abgeschieden.



  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-amino-N-ethylcarbazole-6-sulfonic acid.



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



  <I> Example: </I> 31.2 parts of 3-amino-N-ethylcarbazole-6-sulphonic 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 dyestuff formed is deposited from the aqueous solution by evaporation or casting salts.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines sauren Wollfarbstoffes, dadurch .gekennzeichnet, dass man l.-Clhlor-2-nitrobenzol-4-propylsulfon mit 3-Amino-N-äthylcarbazol-6-sulfonsäure kon densiert. Der so erhaltene Farbstoff färbt Wolle aus saurem Bade in orangegelben Tönen von guter Egalität und hervorragender Licht echtheit. PATENT CLAIM: Process for the production of an acidic wool dye, characterized in that l-chloro-2-nitrobenzene-4-propylsulfone is condensed with 3-amino-N-ethylcarbazole-6-sulfonic acid. The dye obtained in this way dyes wool from an acid bath in orange-yellow shades of good levelness and excellent light fastness.
CH197203D 1935-09-17 1936-08-31 Process for the production of an acidic wool dye. CH197203A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE197203X 1935-09-17
CH193627T 1937-12-13

Publications (1)

Publication Number Publication Date
CH197203A true CH197203A (en) 1938-04-15

Family

ID=25722564

Family Applications (1)

Application Number Title Priority Date Filing Date
CH197203D CH197203A (en) 1935-09-17 1936-08-31 Process for the production of an acidic wool dye.

Country Status (1)

Country Link
CH (1) CH197203A (en)

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