CH177829A - 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
CH177829A
CH177829A CH177829DA CH177829A CH 177829 A CH177829 A CH 177829A CH 177829D A CH177829D A CH 177829DA CH 177829 A CH177829 A CH 177829A
Authority
CH
Switzerland
Prior art keywords
dye
oxyazo
preparation
amino
oxybenzene
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 CH177829A publication Critical patent/CH177829A/en

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Description

  

  Verfahren zur Herstellung eines     o@Ogyazofarbstoffes.       Nach dem im Hauptpatent beschriebenen  Verfahren erhält man einen Wolle in Gegen  wart einer Chrombeize in blaugrünen Tönen  anfärbenden     o-Oxyazofarbstoff,    wenn man       2-Amino-l-oxybenzol        diazotiert    und die     Diazo-          verbindung    mit     1-Phenylamino-8-oxynaphtha-          lin-4-sulfosäure    kuppelt.  



  Wie nun weiter gefunden wurde, erhält  man einen ähnlichen Farbstoff, wenn man       3#4#6-Trichlor-2-amino-l-oxybenzol        diazo-          tiert    und die     Diazoverbindung    mit     1-Phenyl-          amino-S-oxynaphthalin-4-sulfosäure    kuppelt.

    <I>Beispiel:</I>  212,5 Teile 3     #    4     #        6-Trichlor-2-amino-l-          oxybenzol    werden mit 500 Teilen Salzsäure       12 B6    und 69 Teilen     Natriumnitrit        diazotiert.     Die     Diazoverbindung    läuft dann zu einer  Lösung von 330 Teilen 1-Phenyl-amino-8-         oxynaphthalin-4-sulfosäure    und 240 Teilen  Soda. Nach beendeter Kupplung wird in üb  licher Weise aufgearbeitet. Mit     Metachrom-          beize    wird auf Wolle ein grünes Blau von  guten     Echtheiten    erhalten.



  Process for the production of an o @ ogyazo dye. According to the process described in the main patent, a 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-oxynaphthalin-4 -sulfonic acid couples.



  As has now also been found, a similar dye is obtained when 3 # 4 # 6-trichloro-2-amino-1-oxybenzene is diazo- tated and the diazo compound is coupled with 1-phenylamino-S-oxynaphthalene-4-sulfonic acid .

    <I> Example: </I> 212.5 parts of 3 # 4 # 6-trichloro-2-amino-l-oxybenzene are diazotized with 500 parts of hydrochloric acid 12 B6 and 69 parts of sodium nitrite. The diazo compound then runs into a solution of 330 parts of 1-phenyl-amino-8-oxynaphthalene-4-sulfonic acid and 240 parts of soda. After the coupling has ended, it is worked up in a customary manner. With metachromic stain a green blue with good fastness properties is obtained on wool.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines o-Oxy- azofarbstoffes, dadurch gekennzeichnet, dass man 3 # 4 # 6-Trichlor-2-amino-l-oxybenzol dia- zotiert und die Diazoverbindung mit 1-Phenyl- amino-8-oxynaphthalin-4-sulfosäure kuppelt. Der so erhaltene Farbstoff ergibt, nach dem Metachromverfahren gefärbt, auf Wolle ein grünes Blau. Claim: Process for the production of an o-oxy azo dye, characterized in that 3 # 4 # 6-trichloro-2-amino-1-oxybenzene is diazotized and the diazo compound with 1-phenylamino-8-oxynaphthalene-4 -sulfonic acid couples. The dye thus obtained, when dyed by the metachrome process, gives a green blue on wool.
CH177829D 1933-05-10 1934-03-02 Process for the preparation of an o-oxyazo dye. CH177829A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE177829X 1933-05-10
CH174650T 1935-01-31

Publications (1)

Publication Number Publication Date
CH177829A true CH177829A (en) 1935-06-15

Family

ID=25719541

Family Applications (1)

Application Number Title Priority Date Filing Date
CH177829D CH177829A (en) 1933-05-10 1934-03-02 Process for the preparation of an o-oxyazo dye.

Country Status (1)

Country Link
CH (1) CH177829A (en)

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