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CH197202A - 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
CH197202A
CH197202A CH197202DA CH197202A CH 197202 A CH197202 A CH 197202A CH 197202D A CH197202D A CH 197202DA CH 197202 A CH197202 A CH 197202A
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 CH197202A publication Critical patent/CH197202A/en

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Description

  

  Verfahren zur Herstellung eines sauren     Wollfarbstoffes.       Vorliegendes Patent bezieht sich auf ein  Verfahren zur     Herstellung    eines sauren  Wollfarbstoffes, dadurch gekennzeichnet,     dass     man     1-Chlor-2-nitrobenzoi-4-äthylsulfon    mit       3-Amino-N-äthyl.carbazol-6-sulfonsäure    kon  densiert.  



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



  <I>Beispiel:</I>  31,2 Teile     3-amino-N-äthylcarbazol-6-sul-          fonsa.ures    Natrium werden in der     zehnfachen     Menge     Wasser    gelöst. Hierauf fügt man  25 Teile     1-Chlor-2-nitröbenzol-4-äthylsulfon     in etwa 160 Teilen Alkohol     und    10 'Teile       Na.triuma.cetat    zu und erhitzt die     Mischung     mehrere Stunden unter     Rückfluss    zum Sie-    den.

   Dann wird der Alkohol     abdestilliert    und  der gebildete Farbstoff aus der     wässerigen     Lösung durch Eindampfen oder     Aussalzen     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-nitrobenzoi-4-ethylsulfone is condensed with 3-amino-N-äthyl.carbazole-6-sulfonic acid.



  The dye obtained in this way dyes wool from acidic baths in orange-yellow shades of good levelness and excellent power fastness.



  <I> Example: </I> 31.2 parts of 3-amino-N-ethylcarbazole-6-sulphonsa.ures sodium are dissolved in ten times the amount of water. 25 parts of 1-chloro-2-nitrobenzene-4-ethylsulfone in about 160 parts of alcohol and 10 parts of sodium trium acetate are then added, and the mixture is refluxed for several hours.

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

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines sauren Wollfarbstoffes, dadurch gekennzeichnet, dass man l-Chlor-2-nitrobenzol-4-äthylsulfon 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. Claim: Process for the preparation of an acidic wool dye, characterized in that 1-chloro-2-nitrobenzene-4-ethylsulfone 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.
CH197202D 1935-09-17 1936-08-31 Process for the production of an acidic wool dye. CH197202A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE197202X 1935-09-17
CH193627T 1937-12-13

Publications (1)

Publication Number Publication Date
CH197202A true CH197202A (en) 1938-04-15

Family

ID=25722563

Family Applications (1)

Application Number Title Priority Date Filing Date
CH197202D CH197202A (en) 1935-09-17 1936-08-31 Process for the production of an acidic wool dye.

Country Status (1)

Country Link
CH (1) CH197202A (en)

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