CH179670A - Process for the preparation of a monoazo dye. - Google Patents

Process for the preparation of a monoazo dye.

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Publication number
CH179670A
CH179670A CH179670DA CH179670A CH 179670 A CH179670 A CH 179670A CH 179670D A CH179670D A CH 179670DA CH 179670 A CH179670 A CH 179670A
Authority
CH
Switzerland
Prior art keywords
preparation
monoazo dye
sulfonic acid
dye
yellow
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 CH179670A publication Critical patent/CH179670A/en

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

Description

  

  Verfahren zur Herstellung eines     Nonoazofarbstofes.       Vorliegendes Patent bezieht sich auf ein  Verfahren     zur    Herstellung eines     lYIonoazo-          farbstoffes,    dadurch gekennzeichnet, dass man  die     Diazoverbindung    der     1-Aminobenzol-2-          sulfosäure    mit     2-Acetylamirro-8-naphthol-6-          sulfosäure    kuppelt.  



  Der neue     Farbstoff    stellt ein gelbrotes  wasserlösliches Pulver dar und färbt Wolle  in sehr egalen hervorragend lichtechten gelb  stichig roten Tönen.    <I>Beispiel:</I>    17,3 kg     Airilin-o-sulfosäure    werden in der  üblichen Weise     diazotiert.    Die erhaltene       Diazolösung    lässt man in eine mit überschüssi  gem     Natriumbicarbonat    versetzte Lösung von  29 kg     2-Acetylamiiro-8-naphthol-6-sulfosäure       einlaufen. Der entstandene Farbstoff wird in  üblicher Weise isoliert.



  Process for the preparation of a nonoazo dye. The present patent relates to a process for the production of a lYionoazo dye, characterized in that the diazo compound of 1-aminobenzene-2-sulfonic acid is coupled with 2-acetylamirro-8-naphthol-6-sulfonic acid.



  The new dye is a yellow-red, water-soluble powder and dyes wool in very even, extremely lightfast yellow, pungent red tones. <I> Example: </I> 17.3 kg airilin-o-sulfonic acid are diazotized in the usual way. The diazo solution obtained is allowed to run into a solution of 29 kg of 2-acetylamiiro-8-naphthol-6-sulfonic acid mixed with excess sodium bicarbonate. The resulting dye is isolated in the usual way.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Monoazo- farbstoffes, dadurch gekennzeichnet, dass man die Diazoverbindung der 1-Aminobenzol-2- sulfosäure mit 2-Acetylamino-8-naphthol-6- sulfosäure kuppelt. Der neue Farbstoff stellt ein gelbrotes wasserlösliches Pulver dar und färbt Wolle in sehr egalen hervorragend lichtecbten gelb stichig roten Tönen. PATENT CLAIM: Process for the production of a monoazo dye, characterized in that the diazo compound of 1-aminobenzene-2-sulfonic acid is coupled with 2-acetylamino-8-naphthol-6-sulfonic acid. The new dye is a yellow-red, water-soluble powder and dyes wool in very even, brilliantly light-colored yellow, pungent red tones.
CH179670D 1933-08-22 1934-07-27 Process for the preparation of a monoazo dye. CH179670A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE179670X 1933-08-22
CH176032T 1935-01-26

Publications (1)

Publication Number Publication Date
CH179670A true CH179670A (en) 1935-09-15

Family

ID=25719785

Family Applications (1)

Application Number Title Priority Date Filing Date
CH179670D CH179670A (en) 1933-08-22 1934-07-27 Process for the preparation of a monoazo dye.

Country Status (1)

Country Link
CH (1) CH179670A (en)

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