CH197190A - 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
CH197190A
CH197190A CH197190DA CH197190A CH 197190 A CH197190 A CH 197190A CH 197190D A CH197190D A CH 197190DA CH 197190 A CH197190 A CH 197190A
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 CH197190A publication Critical patent/CH197190A/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 man       1-Chlor--2-nitrobenzol-4-pr-opylsulfon    mit     4-          Amino-diphenylamirr-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-amino-diphenylamin-2-sulfon-          saures    Natrium werden in der zehnfachen  Menge Wasser gelöst. Dann fügt man 26,3  Teile     1-Chlor-2-nitrobenzol-4-propylsulfon    und    10 Teile     Natriumacetat    zu und erhitzt das       (ranze    mehrere     Stunden    unter     Rückfluss    zum  Sieden.

   Hierauf wird 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 preparation of an acidic wool dye, characterized in that 1-chloro-2-nitrobenzene-4-pr-opylsulfone is condensed with 4-aminodiphenylamir-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-aminodiphenylamine-2-sulfonic acid sodium are dissolved in ten times the amount of water. 26.3 parts of 1-chloro-2-nitrobenzene-4-propylsulfone and 10 parts of sodium acetate are then added and the mixture is heated to boiling under reflux for several hours.

   The dye formed is then 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-nitrobenzot-4-propylsulfon mit 4-Amino-diphenylamirr-2-sulfonsäure konden siert. Der so erhaltene Farbstoff färbt Wolle aus saurem Bade in gelbbraunen Tönen von sehr guter Egalität und hervorragender Lichtecbt- heit. PATENT CLAIM: Process for the production of an acidic wool dye, characterized in that 1-chloro-2-nitrobenzot-4-propylsulfone is condensed with 4-amino-diphenylamir-2-sulfonic acid. The dye thus obtained dyes wool from an acid bath in yellow-brown shades of very good levelness and excellent lightness.
CH197190D 1935-08-13 1936-08-10 Process for the production of an acidic wool dye. CH197190A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE197190X 1935-08-13
DE193627X 1935-08-13

Publications (1)

Publication Number Publication Date
CH197190A true CH197190A (en) 1938-04-15

Family

ID=25757654

Family Applications (1)

Application Number Title Priority Date Filing Date
CH197190D CH197190A (en) 1935-08-13 1936-08-10 Process for the production of an acidic wool dye.

Country Status (1)

Country Link
CH (1) CH197190A (en)

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