CH197191A - 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
CH197191A
CH197191A CH197191DA CH197191A CH 197191 A CH197191 A CH 197191A CH 197191D A CH197191D A CH 197191DA CH 197191 A CH197191 A CH 197191A
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 CH197191A publication Critical patent/CH197191A/en

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  Verfahren zur Herstellung eines sauren     Wollfarbstoffes.       Vorliegendes Patent bezieht sich auf ein  Verfahren zur Herstellung eines sauren     Woll-          farbstoffes,    dadurch     gekennzeichnet,    dass mau       1-Chlor-2-nitrobenzol-4-methylsulfon    mit     4-          Amirio-diphenylamiri-2-sulfonsäure    konden  siert.  



  Der so erhaltene Farbstoff färbt Wolle aus  saurem Bade in gelbbraunen Tönen von sehr  guter Egalität und hervorragender Lichtecht  heit.    <I>Beispiel:</I>    28,6 Teile     4-amirio-diphenylamin-2-sulfon-          saures    Natrium werden in der zehnfachen  Menge Wasser gelöst. Dann fügt man 23,5  Teile     1-Chlor-2-niti,obenzol-4-methylsulfon    in  etwa 160 Teilen Alkohol und 10 Teile Na-         triumacetat    zu und erhitzt das Ganze mehrere  Stunden unter Rückfuss zum Sieden. Hierauf  wird der Alkohol     abdestilliert    und der gebil  dete Farbstoff aus der wässerigen Lösung       durchEindampfen        oderAussalzenabgeschieden.  



  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 condenses with 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 lightfastness. <I> Example: </I> 28.6 parts of 4-amirio-diphenylamine-2-sulfonic acid sodium are dissolved in ten times the amount of water. Then 23.5 parts of 1-chloro-2-niti, benzene-4-methylsulfone 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 separated off 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 4-Amirio-diphenylamin-2-sulfonsäure konden siert. Der so erhaltene Farbstoff färbt Wolle aus saurem Bade in gelbbraunen Tönen von sehr 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 condensed with 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.
CH197191D 1935-08-13 1936-08-10 Process for the production of an acidic wool dye. CH197191A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE197191X 1935-08-13
DE193627X 1935-08-13

Publications (1)

Publication Number Publication Date
CH197191A true CH197191A (en) 1938-04-15

Family

ID=25757655

Family Applications (1)

Application Number Title Priority Date Filing Date
CH197191D CH197191A (en) 1935-08-13 1936-08-10 Process for the production of an acidic wool dye.

Country Status (1)

Country Link
CH (1) CH197191A (en)

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