CH163545A - Process for the preparation of an azo dye. - Google Patents

Process for the preparation of an azo dye.

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Publication number
CH163545A
CH163545A CH163545DA CH163545A CH 163545 A CH163545 A CH 163545A CH 163545D A CH163545D A CH 163545DA CH 163545 A CH163545 A CH 163545A
Authority
CH
Switzerland
Prior art keywords
azo dye
preparation
aminobenzene
diazotized
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 CH163545A publication Critical patent/CH163545A/en

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Description

  

  Verfahren zur Herstellung eines     Azofarbstoffes.       Es wurde gefunden,     dass    man einen wert  vollen     Azofarbstoff    dadurch erhält,     dass    man       diazotiertes   <B>1 -</B>     Aminobenzol   <B>- 3 -</B>     sulfonsäure-          oxäthylamid    mit     1-Chlor-acetylamino-S-oxy-          naphtbalin-4.6-disulfonsäure    kuppelt.  



  <I>Beispiel:</I>  <B>21,7</B> Gewichtsteile     1-Aminobenzol-3-sul-          fonsäureoxä,tliylamid    (erhalten durch Konden  sation von     1-Nitrobenzol-3-sulfongätirechlorid     mit     Aminoäthylalkohol    und. nachfolgendes  Reduzieren) werden     diazotiert.    Die     Diazo-          lösung        lässt    man zu einer     sodaalkalischen     Lösung von 43 Gewichtsteilen     1-Chlor-acetyl-          amino-8-oxynaphthalin-4.6-disulfonsäure    zu  fliessen und salzt nach beendeter Kupplung  den Farbstoff aus.

   Er färbt Wolle in klaren    roten Tönen von ausgezeichneter     Walkecht-          heit,    gutem     Egalisiervermögen    und besitzt  eine sehr gute Löslichkeit.



  Process for the preparation of an azo dye. It has been found that a valuable azo dye is obtained by diazotized 1 - aminobenzene - 3 - sulfonic acid oxethylamide with 1-chloro-acetylamino-S-oxy- naphtbalin-4,6-disulfonic acid couples.



  <I> Example: </I> <B> 21.7 </B> parts by weight of 1-aminobenzene-3-sulfonsäureoxä, tliylamid (obtained by condensation of 1-nitrobenzene-3-sulfone chloride with aminoethyl alcohol and subsequent reduction ) are diazotized. The diazo solution is allowed to flow into a soda-alkaline solution of 43 parts by weight of 1-chloro-acetylamino-8-oxynaphthalene-4,6-disulfonic acid and, after the coupling is complete, the dye is salted out.

   It dyes wool in clear red shades with excellent flexing fastness, good leveling properties and very good solubility.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines wertvollen Azofarbstoffes, dadurch gekennzeichnet, dass man diazotiertes 1-Aminobenzol-S-sulfonsäui,e- oxäthylamid mit 1-Chloracetylamino-8-oxy- naphthalin-4.6-disulfoiisäure kuppelt. Der neue Farbstoff färbt Wolle in klaren roten Tönen von ausgezeichnet Walkechtheit, gutem Egalisiervermögen Lind besitzt eine sehr gute Löslichkeit. PATENT CLAIM: A process for the production of a valuable azo dye, characterized in that diazotized 1-aminobenzene-S-sulfonic acid, e-oxethylamide is coupled with 1-chloroacetylamino-8-oxynaphthalene-4,6-disulfoiic acid. The new dye dyes wool in clear red shades of excellent millfastness, good leveling properties and very good solubility.
CH163545D 1931-11-11 1932-10-27 Process for the preparation of an azo dye. CH163545A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE163545X 1931-11-11

Publications (1)

Publication Number Publication Date
CH163545A true CH163545A (en) 1933-08-31

Family

ID=5683689

Family Applications (1)

Application Number Title Priority Date Filing Date
CH163545D CH163545A (en) 1931-11-11 1932-10-27 Process for the preparation of an azo dye.

Country Status (1)

Country Link
CH (1) CH163545A (en)

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