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CH197201A - 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
CH197201A
CH197201A CH197201DA CH197201A CH 197201 A CH197201 A CH 197201A CH 197201D A CH197201D A CH 197201DA CH 197201 A CH197201 A CH 197201A
Authority
CH
Switzerland
Prior art keywords
production
acidic
dye
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 CH197201A publication Critical patent/CH197201A/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-nitrobenzol-4-methylsulfon    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-          sulfonsaures        Natrium    werden in oder zehn  fachen Menge Wasser     gelöst.    Hierauf fügt  man 23,5 Teile     1-Chlor-2-nitrobenzol-4-me-          thyIsulfon    in etwa 160     Teilen    Alkohol und  10 Teile     Natriumacetat    zu und erhitzt die       Mischung    mehrere Stunden     unter        Rückfluss       zum Sieden.

   Dann wird -der Alkohol ab  destilliert 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-nitrobenzene-4-methylsulfone 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-sulfonic acid sodium are dissolved in or ten times the amount of water. Then 23.5 parts of 1-chloro-2-nitrobenzene-4-methyisulphone in about 160 parts of alcohol and 10 parts of sodium acetate are added and the mixture is refluxed for several hours.

   Then the alcohol is 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-methylsulfon mit 3-Amino-N-äthylcarbazol-6-sulfonsäuxe kon- flensiert. Der .so erhaltene Farbstoff färbt Wolle aus saurem Bade in orangegelben Tönen von guter Egalität und hervorragender Licht echtheit. PATENT CLAIM: A process for the production of an acidic wool dye, characterized in that 1-chloro-2-nitrobenzene-4-methylsulfone is conflated with 3-amino-N-ethylcarbazole-6-sulfonic acid. The dye obtained in this way dyes wool from acidic Bath in orange-yellow tones of good levelness and excellent lightfastness.
CH197201D 1935-09-17 1936-08-31 Process for the production of an acidic wool dye. CH197201A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE197201X 1935-09-17
CH193627T 1937-12-13

Publications (1)

Publication Number Publication Date
CH197201A true CH197201A (en) 1938-04-15

Family

ID=25722562

Family Applications (1)

Application Number Title Priority Date Filing Date
CH197201D CH197201A (en) 1935-09-17 1936-08-31 Process for the production of an acidic wool dye.

Country Status (1)

Country Link
CH (1) CH197201A (en)

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