CH193627A - 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
CH193627A
CH193627A CH193627DA CH193627A CH 193627 A CH193627 A CH 193627A CH 193627D A CH193627D A CH 193627DA CH 193627 A CH193627 A CH 193627A
Authority
CH
Switzerland
Prior art keywords
production
dye
acidic
acidic wool
wool dye
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 CH193627A publication Critical patent/CH193627A/en

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Description

  

  Verfahren zur Herstellung eines sauren     Wollfarbstoffes.       Es wurde gefunden, dass man zu wert  vollen sauren Wollfarbstoffen gelangt, wenn       inan        Nitroverbindungen    der allgemeinen For  meln  
EMI0001.0004     
    (worin Y Halogen oder eine     Alkogygruppe,     X einen     Alkyl-,        Aryl-    oder     Cycloalkylrest     und Z die Gruppen C0,     S02,        CO-aryl-CO     oder     S02-aryl-S02    bedeuten) mit     Amino-          sulfonsäuren    der     Diarylamin-,

          Cycloalkyl-          ary        lamin-    oder     Carbazolreihe    kondensiert.    Die Kondensation erfolgt in Gegenwart  säurebindender Mittel, wie     Natriumacetat,     Kalk, Kreide und ähnlicher Stoffe in Wasser  oder in geeigneten organischen Lösungsmit  teln oder     in    Gemischen beider durch Erwär  men sowohl unter     Rückfluss,    als auch     unter     Druck.  



  Die so erhaltenen sauren Wollfarbstoffe  sind durch .sehr     gutes        Egalisiervermögen,    so  wie     gute    Echtheitseigenschaften der damit  erzielten Färbungen ausgezeichnet; zum  Teil besitzen sie hervorragende Lichtechtheit,  zum Teil besondere Wasch-,     Schweiss-,    See  wasser- und Bügelechtheit.  



  Vorliegendes Patent bezieht sich nun auf  ein Verfahren zur Herstellung eines sauren  Wollfarbstoffes, dadurch gekennzeichnet, dass  man     1-Chlor-2-nitrobenzol-4-äthylsulfon    mit       4-Amino-diphenylamin-2-sulfonsäure    konden  siert.  



  Der so erhaltene Farbstoff färbt Wolle  aus saurem Bade in gelbbraunen Tönen von      sehr guter Egalität und     hervorragender     Lichtechtheit.  



       Beispiel:     28;6 Teile     4-amino-diphenylamin-2-sulfon-          saures    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 Na  triumacetat .zu und erhitzt das Ganze mehrere  Stunden unter     Rückfluss    zum     Sieden.    Hier  auf     wird    der Alkohol     abdestilliert    und der  gebildete     Farbstoff    aus der wässerigen Lö  sung durch Eindampfen oder     Aussalzen    ab  geschieden.



  Process for the production of an acidic wool dye. It has been found that valuable acidic wool dyes can be obtained if nitro compounds of the general formulas are used
EMI0001.0004
    (in which Y is halogen or an alkogy group, X is an alkyl, aryl or cycloalkyl radical and Z is the groups C0, S02, CO-aryl-CO or S02-aryl-S02) with amino sulfonic acids of diarylamine,

          Cycloalkyl- ary lamin- or carbazole series condensed. The condensation takes place in the presence of acid-binding agents such as sodium acetate, lime, chalk and similar substances in water or in suitable organic solvents or in mixtures of the two by heating both under reflux and under pressure.



  The acidic wool dyes obtained in this way are distinguished by their very good leveling power and good fastness properties for the dyeings obtained therewith; Some of them have excellent lightfastness, others are particularly washfast, perspiration, sea water and ironing fastness.



  The present patent now relates to a process for the production of an acidic wool dye, characterized in that 1-chloro-2-nitrobenzene-4-ethylsulfone is condensed with 4-amino-diphenylamine-2-sulfonic acid.



  The dye thus obtained dyes wool from an acid bath in yellow-brown shades of very good levelness and excellent lightfastness.



       Example: 28; 6 parts of 4-aminodiphenylamine-2-sulfonic acid 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. Here, the alcohol is distilled off and the dye formed is separated 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-Amino--diphenylamin-2-sulfonsäure kon densiert. Der so erhaltene Farbstoff färbt Wolle aus saurem Bade in gelbbraunen Tönen von sehr guter Egalität und hervorragender Lichtechtheit. Claim: Process for the production of an acidic wool dye, characterized in that 1-chloro-2-nitrobenzene-4-ethyl sulfone is condensed with 4-amino - diphenylamine-2-sulfonic acid. The dye thus obtained dyes wool from an acid bath in yellow-brown shades of very good levelness and excellent lightfastness.
CH193627D 1935-08-13 1936-08-10 Process for the production of an acidic wool dye. CH193627A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
CH193627A true CH193627A (en) 1937-10-31

Family

ID=5740032

Family Applications (1)

Application Number Title Priority Date Filing Date
CH193627D CH193627A (en) 1935-08-13 1936-08-10 Process for the production of an acidic wool dye.

Country Status (1)

Country Link
CH (1) CH193627A (en)

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