CH177830A - Process for the preparation of an o-oxyazo dye. - Google Patents

Process for the preparation of an o-oxyazo dye.

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Publication number
CH177830A
CH177830A CH177830DA CH177830A CH 177830 A CH177830 A CH 177830A CH 177830D A CH177830D A CH 177830DA CH 177830 A CH177830 A CH 177830A
Authority
CH
Switzerland
Prior art keywords
dye
oxyazo
preparation
diazotized
amino
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 CH177830A publication Critical patent/CH177830A/en

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Description

  

  Verfahren zur Herstellung eines     o-Oxyazofarbstoffes.       Nach dem im Hauptpatent beschriebenen  Verfahren erhält man einen Wolle in Ge  genwart einer Chrombeize in blaugrünen  Tönen anfärbenden     o-Oxyazofarbstoff,    wenn  man     2-Amino-l-oxybenzol        diazotiert    und die       Diazoverbindung    mit     1-Phenylamino-8-oxy-          riaphtalin-4-sulfosäure    kuppelt.  



  Wie nun weiter gefunden wurde, erhält  man einen ähnlichen Farbstoff, wenn man       6-Nitr-o-4-chlor-2-arnino-l-oxybenzol        diazotiert     und die     Diazoverbindung    mit     1-(2'-Tolyl)-          amino-8-oxynaphtalin-4-sulfosäure    kuppelt.

    <I>Beispiel:</I>  188,5 Teile     6-Nitro-4-chlor-2-amino-l-          oxybenzol    werden     diazotiert    und in soda-    alkalischer Lösung mit 345 Teilen     1-(2'-          Tolyl-amino-8-oxynaphthalirr-4-sulfosäure    ge  kuppelt.     lilan    erhält einen Farbstoff, der nach  dem     Metachromverfahren    gefärbt, ein Grün  ergibt.



  Process for the preparation of an o-oxyazo dye. According to the process described in the main patent, wool is obtained in the presence of a chrome stain in blue-green shades of o-oxyazo dye, if 2-amino-1-oxybenzene is diazotized and the diazo compound with 1-phenylamino-8-oxy-riaphthalene-4-sulfonic acid clutch.



  As has now been found, a similar dye is obtained if 6-nitr-o-4-chloro-2-arnino-1-oxybenzene is diazotized and the diazo compound is diazotized with 1- (2'-tolyl) -amino-8-oxynaphthalene -4-sulfonic acid couples.

    <I> Example: </I> 188.5 parts of 6-nitro-4-chloro-2-amino-l-oxybenzene are diazotized and mixed with 345 parts of 1- (2'-tolyl-amino-8 -oxynaphthalir-4-sulfonic acid coupled.lilane contains a dye which, when colored using the metachrome process, turns green.

Claims (1)

PATENTANSPUÜ <B>CH</B> Verfahren zur Herstellung eines o-Oxyazo- farbstoffes, dadurch gekennzeichnet, dass man 6-Nitro-4-chlor-2-amino-l-oxyberizol diazotiert und die Diazoverbindung mit 1-(2'-Tolyl)- amirro-8-oxyrraphthalirr-4-sulfosäurekuppelt. Der Farbstoff ergibt, nach dem 1VIetachrom- verfahren gefärbt, auf Wolle ein Grün. PATENT ANSPUÜ <B> CH </B> Process for the preparation of an o-oxyazo dye, characterized in that 6-nitro-4-chloro-2-amino-l-oxyberizole is diazotized and the diazo compound is treated with 1- (2'- Tolyl) - amirro-8-oxyrraphthalir-4-sulfonic acid coupled. The dye, when dyed by the 1VIetachrom method, turns green on wool.
CH177830D 1933-05-10 1934-03-02 Process for the preparation of an o-oxyazo dye. CH177830A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE177830X 1933-05-10
CH174650T 1935-01-31

Publications (1)

Publication Number Publication Date
CH177830A true CH177830A (en) 1935-06-15

Family

ID=25719542

Family Applications (1)

Application Number Title Priority Date Filing Date
CH177830D CH177830A (en) 1933-05-10 1934-03-02 Process for the preparation of an o-oxyazo dye.

Country Status (1)

Country Link
CH (1) CH177830A (en)

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