CH199097A - 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
CH199097A
CH199097A CH199097DA CH199097A CH 199097 A CH199097 A CH 199097A CH 199097D A CH199097D A CH 199097DA CH 199097 A CH199097 A CH 199097A
Authority
CH
Switzerland
Prior art keywords
dye
oxyazo
carboxylic acid
preparation
anilide
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 CH199097A publication Critical patent/CH199097A/en

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Description

  

  Verfahren zur Herstellung eines     o-Ogyazofarbstoffes.       Nach dem im     Hauptpatent        beschriebenen     Verfahren erhält man einen Wolle nach dem       Einbad-Chromverfahren    in     violettbraunen     Tönen färbenden     Farbstoff,    indem man 4  Nitro-6-chlor-2-amino-l-oxybenzol     diazotiert     und die     Diazoverbindung    mit     2-Oxynaphtha-          lin-6-sulfonsäureanilid-2'-carbonsäure    kup  pelt.  



  Wie nun     -weiter    gefunden wurde, erhält  man einen Farbstoff von     ähnlichen    Echt  heitseigenschaften, wenn man     2-Aminobenzol-          1--carbonsäure    diazotiert und die     Diazoverbin-          dung    mit     2-Oxynaphthalin-6-sulfonsäureani-          lid-2'-carbonsäure    kuppelt. Der Farbstoff  färbt auf Wolle nach dem Chromverfahren  gedeckte     rote    Töne von     guten    Echtheitseigen  schaften.  



  <I>Beispiel:</I>  13,7 Teile     2-Aminobenzol-l-carbonsäure     werden auf übliche Art     diazotiert.    Die     Di-          azoverbin,dung    läuft zu einer mit Eis versetz  ten Auflösung von 35 Teilen     2-Oxynaphtha-          lin-6-sulfonsäureanilid-2'-carbonsäure    und    30 Teilen Soda in     etwa    1000     Teilen    Wasser.  Die Aufarbeitung des Farbstoffes erfolgt in  üblicher     Weise.    Er bildet nach dem Trock  nen ein     rotes    Pulver von guter Löslichkeit.

    Wolle     wird    nach dem Chromverfahren     in    ge  deckten roten Tönen von     guter        Wasch-,     Walk- und Lichtechtheit angefärbt.



  Process for the preparation of an o-ogyazo dye. According to the process described in the main patent, a dye is obtained which dyes wool by the single-bath chromium process in violet-brown shades by diazotizing 4 nitro-6-chloro-2-amino-1-oxybenzene and treating the diazo compound with 2-oxynaphthalin-6- sulfonic anilide-2'-carboxylic acid kup pelt.



  As has now been found, a dye of similar authenticity properties is obtained if 2-aminobenzene-1-carboxylic acid is diazotized and the diazo compound is coupled with 2-oxynaphthalene-6-sulfonic acid anilide-2'-carboxylic acid. The dye dyes muted red shades with good fastness properties on wool using the chrome process.



  <I> Example: </I> 13.7 parts of 2-aminobenzene-1-carboxylic acid are diazotized in the usual way. The diazo compound leads to a dissolution of 35 parts of 2-oxynaphthaline-6-sulfonic acid anilide-2'-carboxylic acid and 30 parts of soda in about 1000 parts of water. The dye is worked up in the customary manner. After drying it forms a red powder with good solubility.

    Using the chrome process, wool is dyed in opaque red tones that are wash, milled and lightfast.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines o-Oxy- azofarbstoffes, dadurch gekennzeichnet, daB man 2-Aminobenzol-l-carbons.äure @diazotiert und die Diazoverbindung mit 2-Oxynaph- thalin-6-sulfonsäureanilid-2'-carbonsäure kup pelt. Claim: Process for the production of an o-oxyazo dye, characterized in that 2-aminobenzene-1-carboxylic acid is diazotized and the diazo compound is coupled with 2-oxynaphthalene-6-sulfonic anilide-2'-carboxylic acid. Der Farbstoff bildet nach dem Trock nen ein rotes Pulver von guter Löslichkeit, welches nach dem Chromverfahren Wolle in gedeckten roten Tönen von guter Wasch-, Walk- und Lichtechtheit anfärbt. After drying, the dye forms a red powder of good solubility which, using the chrome process, dyes wool in muted red shades of good wash, milled and lightfastness.
CH199097D 1936-01-17 1936-11-04 Process for the preparation of an o-oxyazo dye. CH199097A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE199097X 1936-01-17
DE30636X 1936-06-03
CH197281T 1936-11-04

Publications (1)

Publication Number Publication Date
CH199097A true CH199097A (en) 1938-07-31

Family

ID=27177840

Family Applications (1)

Application Number Title Priority Date Filing Date
CH199097D CH199097A (en) 1936-01-17 1936-11-04 Process for the preparation of an o-oxyazo dye.

Country Status (1)

Country Link
CH (1) CH199097A (en)

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