CH177461A - Process for the preparation of a new monoazo dye. - Google Patents

Process for the preparation of a new monoazo dye.

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Publication number
CH177461A
CH177461A CH177461DA CH177461A CH 177461 A CH177461 A CH 177461A CH 177461D A CH177461D A CH 177461DA CH 177461 A CH177461 A CH 177461A
Authority
CH
Switzerland
Prior art keywords
preparation
monoazo dye
new monoazo
dye
sulfonic acid
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 CH177461A publication Critical patent/CH177461A/en

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Description

  

  Verfahren zur Her     stellun    ; eines neuen     lllonoazofar        bstoffes.       Vorliegendes Patent bezieht sich auf ein  Verfahren zur Herstellung eines neuen     Mono-          azofarbstoffes,    dadurch gekennzeichnet, dass  man die     Diazoverbindung    der     1-ill:ethoxy-          acetylamino-3-amirrobenzol-4-sulfosäure    mit  der     2-Amino-8-naphthol-6-sulfosäure    in mine  ralsaurem Medium kuppelt.  



  Der so erhaltene Farbstoff stellt ein dun  kelrotes wasserlösliches Pulver dar und färbt  die animalische Faser aus saurem Bade in  egalen, lebhaft roten Tönen von hervorragen  der Lichtechtheit.  



  <I>Beispiel</I>  26 kg     1-Methoxyacetylarnino-3-aminoben-          zol-4-sulfosäure    werden in üblicher Weise       diazotiert    und die so erhaltene     Diazolösung     wird mit 24 kg der     2-Arnino-8-naphthol-6-          sulfosäure    in sehwach kongosaurem Medium    gekuppelt. Der erhaltene Farbstoff wird in  üblicher Weise isoliert und getrocknet.



  Process for the manufacture; of a new lllonoazo dye. The present patent relates to a process for the preparation of a new monoazo dye, characterized in that the diazo compound of the 1-ill: ethoxy-acetylamino-3-amirrobenzene-4-sulfonic acid with the 2-amino-8-naphthol-6- sulfonic acid in a mineral acid medium.



  The dye thus obtained is a dark red water-soluble powder and dyes the animal fiber from acid bath in level, vivid red shades of excellent lightfastness.



  <I> Example </I> 26 kg of 1-methoxyacetylamino-3-aminobenzene-4-sulfonic acid are diazotized in the usual way and the diazo solution thus obtained is mixed with 24 kg of 2-amino-8-naphthol-6-sulfonic acid in weakly coupled to Congo acid medium. The dye obtained is isolated and dried in the customary manner.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Monoazofarbstoffes, dadurch gekennzeichnet, dass man die Diazoverbindung der 1-Methoxy- acetylamino-3-anrinobenzol-4-sulfosäure mit der 2-Amino-8-naphtbol-6-sulfosäure in mine ralsaurem Medium kuppelt. Der erhaltene Farbstoff stellt ein dunkel rotes wasserlösliches Pulver dar und färbt die animalische Faser aus saurem Bade in egalen, lebhaft roten Tönen von hervorragen der Lichtechtheit. PATENT CLAIM: Process for the production of a new monoazo dye, characterized in that the diazo compound of 1-methoxyacetylamino-3-anrinobenzene-4-sulfonic acid is coupled with 2-amino-8-naphthobol-6-sulfonic acid in a mineral acid medium. The dye obtained is a dark red, water-soluble powder and dyes the animal fibers from acid bath in level, vivid red shades of excellent lightfastness.
CH177461D 1933-01-24 1934-01-09 Process for the preparation of a new monoazo dye. CH177461A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE177461X 1933-01-24
CH172366T 1934-01-09

Publications (1)

Publication Number Publication Date
CH177461A true CH177461A (en) 1935-05-31

Family

ID=25719185

Family Applications (1)

Application Number Title Priority Date Filing Date
CH177461D CH177461A (en) 1933-01-24 1934-01-09 Process for the preparation of a new monoazo dye.

Country Status (1)

Country Link
CH (1) CH177461A (en)

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