CH179676A - Process for the preparation of a monoazo dye. - Google Patents

Process for the preparation of a monoazo dye.

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Publication number
CH179676A
CH179676A CH179676DA CH179676A CH 179676 A CH179676 A CH 179676A CH 179676D A CH179676D A CH 179676DA CH 179676 A CH179676 A CH 179676A
Authority
CH
Switzerland
Prior art keywords
preparation
monoazo dye
sulfonic acid
dye
monoazo
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 CH179676A publication Critical patent/CH179676A/en

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Description

  

  Verfahren zur Herstellung eines     blonoazofarbstof%s.       Vorliegendes Patent bezieht sich auf ein  Verfahren zur Herstellung eines     Monoazo-          farbstoffes,    dadurch gekennzeichnet, dass man  die     Diazoverbindung    der     1-Aminobenzol-2-          sulfosäure    mit der     2-Acety        larnino-5-rraphthol-          7-sirlfosäure    kuppelt.  



  Der neue     Farbstoff    bildet nach dem Trock  nen ein gelbrotes wasserlösliches Pulver und       fiirbt    Wolle in lebhaft orangen Tönen von  hervorragender Lichtechtheit.    <I>Beispiel:</I>    17,3 kg     Anilir)-o-sulfosäure    werden in der  üblichen Weise dianotiert. Die erhaltene     Diazo-          lösung    lässt man in eine mit überschüssigem       Natriumbicarbonatversetzte    Lösung von 29 kg       2-Acetylamino-5-naphthol-7-srrlfosäure    einlau-         fen.    Der entstandene Farbstoff wird in üb  licher Weise isoliert.



  Process for the preparation of a blonoazo dye% s. The present patent relates to a process for the production of a monoazo dye, characterized in that the diazo compound of 1-aminobenzene-2-sulfonic acid is coupled with 2-acetylinino-5-raphthol-7-sulfonic acid.



  After drying, the new dye forms a yellow-red, water-soluble powder and colors wool in vivid orange tones of excellent lightfastness. <I> Example: </I> 17.3 kg anilir) -o-sulfonic acid are dianotized in the usual way. The diazo solution obtained is allowed to run into a solution of 29 kg of 2-acetylamino-5-naphthol-7-sulfoic acid to which excess sodium bicarbonate has been added. The resulting dye is isolated in a customary manner.

Claims (1)

<B>PATENTANSPRUCH:</B> Verfahren zur Herstellung eines Monoazo- farbstoffes, dadurch gekennzeichnet, dass man die Diazoverbindung der 1-Aminober)zol.-2- sulfosäure mit der 2-Acetylamino-5-naphthol- 7-sulfosäure kuppelt. Der neue Farbstoff bildet nach dem Trock nen ein gelbrotes wasserlösliches Pulver und färbt Wolle in lebhaft orangen Tönen von hervorragender Lichtechtheit. Claim: A process for the production of a monoazo dye, characterized in that the diazo compound of 1-aminober) zol-2-sulfonic acid is coupled with 2-acetylamino-5-naphthol-7-sulfonic acid. After drying, the new dye forms a yellow-red, water-soluble powder and dyes wool in vivid orange tones with excellent lightfastness.
CH179676D 1933-08-22 1934-07-27 Process for the preparation of a monoazo dye. CH179676A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE179676X 1933-08-22
CH176032T 1935-01-26

Publications (1)

Publication Number Publication Date
CH179676A true CH179676A (en) 1935-09-15

Family

ID=25719791

Family Applications (1)

Application Number Title Priority Date Filing Date
CH179676D CH179676A (en) 1933-08-22 1934-07-27 Process for the preparation of a monoazo dye.

Country Status (1)

Country Link
CH (1) CH179676A (en)

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