CH179675A - Process for the preparation of a monoazo dye. - Google Patents

Process for the preparation of a monoazo dye.

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Publication number
CH179675A
CH179675A CH179675DA CH179675A CH 179675 A CH179675 A CH 179675A CH 179675D A CH179675D A CH 179675DA CH 179675 A CH179675 A CH 179675A
Authority
CH
Switzerland
Prior art keywords
preparation
dye
sulfonic acid
monoazo dye
red
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 CH179675A publication Critical patent/CH179675A/en

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Description

  

  Verfahren zur Herstellung eines     3lonoazofarbstoffes.       Vorliegendes Patent bezieht sich auf ein  Verfahren zur     Herstellung    eines     lslonoazo-          farbstoffes,    dadurch gekennzeichnet, dass man  die     Diazoverbindung    der     1-Benzoylamino-3-          aminoberizol-4-sulfosäure    mit der     1-Acetyl-          amirio-5-naplithol-7-sulfosäure    kuppelt.  



  Der neue Farbstoff bildet nach dem Trock  nern ein gelbrotes wasserlösliches Pulver und  färbt Wolle in sehr egalen leuchtend orange  roten Tönen von hervorragender Lichtecht  heit.  



  <I>Beispiel:</I>  29,2 kg     1-Benzoylamino-3-aminobenzol-4-          sulfosäure    werden in üblicher Weise     diazotiert.     Die erhaltene     Diazolösung    lässt man unter       Eiskühlung    in eine mit überschüssigem Na  triumacetat versetzte Lösung von 29 kg 1-         Acetylamino-5-napbthol-7-sulfosäui@e    laufen.  Nach beendeter Kupplung wird der Farbstoff  in üblicher Weise isoliert.



  Process for the preparation of a 3lonoazo dye. The present patent relates to a process for the production of an islonoazo dye, characterized in that the diazo compound of 1-benzoylamino-3-aminoberizole-4-sulfonic acid is coupled with 1-acetylamino-5-naplithol-7-sulfonic acid.



  After drying, the new dye forms a yellow-red, water-soluble powder and dyes wool in very even, bright orange-red shades of excellent lightfastness.



  <I> Example: </I> 29.2 kg of 1-benzoylamino-3-aminobenzene-4-sulfonic acid are diazotized in the usual way. The diazo solution obtained is allowed to run into a solution of 29 kg of 1-acetylamino-5-napthol-7-sulfosäui @ e mixed with excess sodium acetate while cooling with ice. After the coupling has ended, the dye is isolated in the customary manner.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines DIonoazo- farbstoffes, dadurch gekennzeichnet, dass man die Diazoverbindung der 1-Benzoylamino-3- aniinoberizol-4-sulfosäure mit der 1-Acetyl- amino-5-naphthol-7-sulfosäure kuppelt. Der neue Farbstoff bildet nach dem Trock nen ein gelbrotes wasserlösliches Pulver und färbt Wolle in sehr egalen leuchtend orange roten Tönen von hervorragender Lichtecht heit. PATENT CLAIM: Process for the production of a dionoazo dye, characterized in that the diazo compound of 1-benzoylamino-3-aniinoberizole-4-sulfonic acid is coupled with 1-acetylamino-5-naphthol-7-sulfonic acid. After drying, the new dye forms a yellow-red, water-soluble powder and dyes wool in very even, bright orange-red shades of excellent lightfastness.
CH179675D 1933-08-22 1934-07-27 Process for the preparation of a monoazo dye. CH179675A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE179675X 1933-08-22
CH176032T 1935-01-26

Publications (1)

Publication Number Publication Date
CH179675A true CH179675A (en) 1935-09-15

Family

ID=25719790

Family Applications (1)

Application Number Title Priority Date Filing Date
CH179675D CH179675A (en) 1933-08-22 1934-07-27 Process for the preparation of a monoazo dye.

Country Status (1)

Country Link
CH (1) CH179675A (en)

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