CH159317A - Process for the preparation of a water-insoluble azo dye. - Google Patents

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

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Publication number
CH159317A
CH159317A CH159317DA CH159317A CH 159317 A CH159317 A CH 159317A CH 159317D A CH159317D A CH 159317DA CH 159317 A CH159317 A CH 159317A
Authority
CH
Switzerland
Prior art keywords
preparation
water
azo dye
insoluble azo
dye
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 CH159317A publication Critical patent/CH159317A/en

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  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Description

  

      Verfahren    zur Darstellung eines     wasserunlöslichen        Azofarl)stoü'es.       Gegenstand des vorliegenden Zusatzpa  tentes ist ein Verfahren zur Darstellung eines  wasserunlöslichen     Azofarbstoffes,    welches da  durch gekennzeichnet ist, dass man die     Di-          azoverbindung    von     1-Amino-2-eblor-5-trifluor-          methylbenzol    mit     2'.3'-Oxynaphtoyl-l-amino-          2-äthoxybenzol    kuppelt. Die Einwirkung der  beiden Komponenten aufeinander kann auch  in Gegenwart eines Substrates erfolgen.  



  Der in Substanz hergestellte Farbstoff bildet  ein orangefarbenes Pulver und liefert, wenn  auf der Faser erzeugt, ein lebhaftes Orange  von sehr guter Licht- und Waschechtheit.  



  <I>Beispiel:</I>  Zu einer in der üblichen Weise aus 19,6  Gewichtsteilen     1-Amino-2-chlor-;')-trifluorme-          thylbenzol    bereiteten     Diazolösung    fliesst lang  sam unter gutem Rühren eine     natronalka-          lische    Lösung von 30,7 Gewichtsteilen     2'.3'-          Oxyrraphtoyl-l-amino-2-äthoxyberrzol,    welche  mit der zur Bindung der überschüssigen Mi  neralsäure nötigen Menge     Natriumacetat    ver-    setzt ist.

   Nach Beendigung der Farbstoff  bildung wird     abfiltriert,    gut mit Wasser  gewaschen und     getrocknet.    Die     Darstellung     des     Farbstoffes    kann auch in Gegenwart  eines Substrates erfolgen. Wird der     Farbstoff     auf der Faser erzeugt, so erhält man ein  lebhaftes Orange von sehr guter Licht- und  Waschechtheit.



      Process for the preparation of a water-insoluble Azofarl stool. The subject of the present Zusatzpa tentes is a process for the preparation of a water-insoluble azo dye, which is characterized by the fact that the di-azo compound of 1-amino-2-eblor-5-trifluoromethylbenzene with 2'.3'-oxynaphtoyl-l -amino- 2-ethoxybenzene couples. The two components can also act on one another in the presence of a substrate.



  The dye, which is produced in substance, forms an orange-colored powder and, when produced on the fiber, provides a vivid orange with very good lightfastness and washfastness.



  <I> Example: </I> To a diazo solution prepared in the usual way from 19.6 parts by weight of 1-amino-2-chloro -; ') - trifluoromethylbenzene, a sodium-alkaline solution of 30 slowly flows with thorough stirring , 7 parts by weight of 2'.3'-oxyrraphtoyl-1-amino-2-ethoxyberrzol, which is offset with the amount of sodium acetate necessary to bind the excess mineral acid.

   When the dye has formed, it is filtered off, washed well with water and dried. The preparation of the dye can also take place in the presence of a substrate. If the dye is produced on the fiber, a vivid orange of very good lightfastness and washfastness is obtained.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines wasser unlöslichen Azofarbstoffes, dadurch gekenn zeichnet, dass man die Diazoverbindung von 1-Amino-2-chlor-5-trifluorrnethylbeuzol mit 2'.3'- Oxyrraphtoyl-l-amirro-2- äthoxyberrzol kuppelt. Der in Substanz hergestellte Farbstoff bildet ein orangefarbenes Pulver und liefert, wenn auf der Faser erzeugt, ein lebhaftes Orange von sehr guter Licht- und Wasch echtheit. Claim: Process for the preparation of a water-insoluble azo dye, characterized in that the diazo compound of 1-amino-2-chloro-5-trifluoromethylbeuzol is coupled with 2'.3'-oxyrraphtoyl-1-amirro-2-ethoxyberrzene. The dye, which is produced in substance, forms an orange-colored powder and, when produced on the fiber, provides a vivid orange with very good light and wash fastness.
CH159317D 1930-10-10 1931-10-08 Process for the preparation of a water-insoluble azo dye. CH159317A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE159317X 1930-10-10
CH155781T 1931-10-08

Publications (1)

Publication Number Publication Date
CH159317A true CH159317A (en) 1932-12-31

Family

ID=25716645

Family Applications (1)

Application Number Title Priority Date Filing Date
CH159317D CH159317A (en) 1930-10-10 1931-10-08 Process for the preparation of a water-insoluble azo dye.

Country Status (1)

Country Link
CH (1) CH159317A (en)

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