CH197193A - 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
CH197193A
CH197193A CH197193DA CH197193A CH 197193 A CH197193 A CH 197193A CH 197193D A CH197193D A CH 197193DA CH 197193 A CH197193 A CH 197193A
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 CH197193A publication Critical patent/CH197193A/en

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  • Coloring (AREA)

Description

  

      Verfahren        zur        Herstellung        eines        sauren       Vorliegendes Patent bezieht sich auf ein  Verfahren zur Herstellung eines sauren     Woll-          farbstoffes,    dadurch gekennzeichnet, dass man       1-Chlor-2-rritrobenzol-4-äthylsulforr    mit     4'-          Acetylamino-4-        amino-diphenylamin-2-sulfon-          säure    kondensiert.  



  Der so erhaltene Farbstoff färbt Wolle  aus saurem Bade in gelbbraunen Tönen von  sehr guter Egalität und hervorragender Licht  echtheit.    <I>Beispiel:</I>  34,3 Teile     4'-acetylamino-4-amino-diphe-          nylamin-2-sulforisaures    Natrium werden in  der zehnfachen Menge Wasser gelöst. Dann  fügt man 25 Teile     1-Chlor-2-nitrobenzol-4-          äthylsulfon    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 wässe  rigen Lösung durch Eindampfen oder     Gus-          salzen    abgeschieden.



      Process for the production of an acidic present patent relates to a process for the production of an acidic wool dye, characterized in that 1-chloro-2-ritrobenzene-4-ethylsulforr is mixed with 4'-acetylamino-4-amino-diphenylamine-2- sulfonic acid condensed.



  The dye obtained in this way dyes wool from an acid bath in yellow-brown shades of very good levelness and excellent light fastness. <I> Example: </I> 34.3 parts of 4'-acetylamino-4-amino-diphenylamine-2-sulphate 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 acetate are then added, and the whole is refluxed for several hours.

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

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines sauren Wollfarbstoffes, dadurch gekennzeichnet, dass man 1-Chlor-2-nitrobenzol-4-äthylsulfon mit 4'-Acetylamino -4-amino-diphenylamin-2-sul- fonsäure kondensiert. Der so erhaltene Farbstoff färbt Wolle aus saurem Bade in gelbbraunen Tönen von sehr guter Egalität und hervorragender Licht echtheit. Claim: Process for the production of an acidic wool dye, characterized in that 1-chloro-2-nitrobenzene-4-ethyl sulfone is condensed with 4'-acetylamino -4-aminodiphenylamine-2-sulfonic acid. The dye obtained in this way dyes wool from an acid bath in yellow-brown shades of very good levelness and excellent light fastness.
CH197193D 1935-08-13 1936-08-10 Process for the production of an acidic wool dye. CH197193A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE193627X 1935-08-13
DE197193X 1935-08-13

Publications (1)

Publication Number Publication Date
CH197193A true CH197193A (en) 1938-04-15

Family

ID=25757657

Family Applications (1)

Application Number Title Priority Date Filing Date
CH197193D CH197193A (en) 1935-08-13 1936-08-10 Process for the production of an acidic wool dye.

Country Status (1)

Country Link
CH (1) CH197193A (en)

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