CH134848A - Process for the preparation of a water-insoluble azo dye. - Google Patents

Process for the preparation of a water-insoluble azo dye.

Info

Publication number
CH134848A
CH134848A CH134848DA CH134848A CH 134848 A CH134848 A CH 134848A CH 134848D A CH134848D A CH 134848DA CH 134848 A CH134848 A CH 134848A
Authority
CH
Switzerland
Prior art keywords
water
preparation
azo dye
insoluble azo
mol
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 CH134848A publication Critical patent/CH134848A/en

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Description

  

  Verfahren zur Darstellung eines wasserunlöslichen     Azofarbstoffes.       Gegenstand des vorliegenden Patentes ist  ein Verfahren zur Darstellung eines wasser  unlöslichen     Azofarbstoffes,    dadurch gekenn  zeichnet, dass man 1     Mol        2.3-Oxynaphtoe-          säure-5-chlor-2-toluidid        (CHa    =     1,NH    = 2)  mit 1     Mol    der     Diazoverbindung    von     Methyl-          benzoylamino-as-m-gylindi    n  
EMI0001.0012     
    kuppelt.

    <I>Beispiel:</I>  2,97 Gewichtsteile     2.3-Oxynaphtoesäure          5-chlor-2-toluidid    werden mit Natronlauge in  300 Gewichtsteilen Wasser gelöst und<B>100</B>  Teile Substrat, zum Beispiel Aluminium  hydrat-Bariumsulfat zugegeben. Hierauf wird  in bekannter Weise mit der     Diazoverbindung     aus 2,54     Grewichtsteilen        Methylbenzoylamino-          as-m-gylidin     
EMI0001.0019     
    gekuppelt. Nach Beendigung der Kupplung  wird gewaschen, filtriert und getrocknet. Man  erhält einen     blaustichigroten    Lack. Der       Farbstoff    lässt sich in bekannter Weise auch  auf der Faser kuppeln.



  Process for the preparation of a water-insoluble azo dye. The present patent is a process for the preparation of a water-insoluble azo dye, characterized in that 1 mol of 2,3-oxynaphthoic acid 5-chloro-2-toluidide (CHa = 1, NH = 2) with 1 mol of the diazo compound of Methyl benzoylamino-as-m-gylindi n
EMI0001.0012
    clutch.

    <I> Example: </I> 2.97 parts by weight of 2,3-oxynaphthoic acid 5-chloro-2-toluidide are dissolved in 300 parts by weight of water with sodium hydroxide solution and <B> 100 </B> parts of substrate, for example aluminum hydrate barium sulfate, are added . Then in a known manner with the diazo compound from 2.54 parts by weight of methylbenzoylamino-as-m-gylidine
EMI0001.0019
    coupled. After the coupling has ended, it is washed, filtered and dried. A bluish-tinged red paint is obtained. The dye can also be coupled to the fiber in a known manner.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines wasser unlöslichen Azofarbstoffes, dadurch gekenn zeichnet, dass man 1 Mol 2.3-Oxynaphtoe- säure-5-chlor-2-toluidid (CHs = 1,NH = 2) mit 1Mol der Diazoverbindung von Methyl- benzoylamino-as-m-gylidin EMI0001.0032 kuppelt. Der erhaltene Farbstoff stellt trocken ein rotes Pulver dar und ergibt auf Baumwolle erzeugt oder als Lack ein blaustichiges Rot. PATENT CLAIM: Process for the preparation of a water-insoluble azo dye, characterized in that 1 mol of 2,3-oxynaphthoic acid-5-chloro-2-toluidide (CHs = 1, NH = 2) with 1 mol of the diazo compound of methylbenzoylamino-as -m-gylidine EMI0001.0032 clutch. The dye obtained is a red powder when dry and produces a bluish red when applied to cotton or as a paint.
CH134848D 1927-01-25 1928-01-17 Process for the preparation of a water-insoluble azo dye. CH134848A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE134848X 1927-01-25
CH134100T 1928-01-17

Publications (1)

Publication Number Publication Date
CH134848A true CH134848A (en) 1929-08-15

Family

ID=25712235

Family Applications (1)

Application Number Title Priority Date Filing Date
CH134848D CH134848A (en) 1927-01-25 1928-01-17 Process for the preparation of a water-insoluble azo dye.

Country Status (1)

Country Link
CH (1) CH134848A (en)

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