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CH197196A - 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
CH197196A
CH197196A CH197196DA CH197196A CH 197196 A CH197196 A CH 197196A CH 197196D A CH197196D A CH 197196DA CH 197196 A CH197196 A CH 197196A
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 CH197196A publication Critical patent/CH197196A/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-äthylsulfon    mit 4'  Methoxy-4-     amino-diphenylamin-2-sulfonsäure     kondensiert.  



  Der so erhaltene Farbstoff färbt Wolle aus  saurem Bade in braunen Tönen von sehr  guter Egalität und hervorragender Lichtecht  heit.    <I>Beispiel:</I>    31,6 Teile     4'-methoxy-4-amino-dipheuyl-          amin-2-sulfonsaures    Natrium werden in der  zehnfachen Menge Wasser gelöst. Dann fügt  man 25 Teile     1-Chlor-2-nitrobenzol-4-äthyl-          sulfon    in etwa 160 Teilen Alkohol und 10    Teile     Natriumacetat    zu und erhitzt das Ganze  mehrere Stunden unter     Rückfluss    zum Sieden.

    Hierauf 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-nitrobenzene-4-ethyl sulfone is condensed with 4 'methoxy-4-aminodiphenylamine-2-sulfonic acid.



  The dye obtained in this way dyes wool from an acid bath in brown shades of very good levelness and excellent lightfastness. <I> Example: </I> 31.6 parts of 4'-methoxy-4-amino-dipheuyl-amine-2-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 whole 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 4'-Methoxy-4- amino - diphenylamin - 2- sulfon- säure kondensiert. Der so erhaltene Farbstoff färbt Wolle aus saurem Bade in braunen Tönen von sehr guter Egalität und hervorragender Lichtecht heit. Claim: Process for the production of an acidic wool dye, characterized in that 1-chloro-2-nitrobenzene-4-ethylsulfone is condensed with 4'-methoxy-4-amino-diphenylamine-2-sulfonic acid. The dye obtained in this way dyes wool from an acid bath in brown shades of very good levelness and excellent lightfastness.
CH197196D 1935-08-13 1936-08-10 Process for the production of an acidic wool dye. CH197196A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE197196X 1935-08-13
DE193627X 1935-08-13

Publications (1)

Publication Number Publication Date
CH197196A true CH197196A (en) 1938-04-15

Family

ID=25757660

Family Applications (1)

Application Number Title Priority Date Filing Date
CH197196D CH197196A (en) 1935-08-13 1936-08-10 Process for the production of an acidic wool dye.

Country Status (1)

Country Link
CH (1) CH197196A (en)

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