CH215828A - Process for the preparation of an azo dye. - Google Patents

Process for the preparation of an azo dye.

Info

Publication number
CH215828A
CH215828A CH215828DA CH215828A CH 215828 A CH215828 A CH 215828A CH 215828D A CH215828D A CH 215828DA CH 215828 A CH215828 A CH 215828A
Authority
CH
Switzerland
Prior art keywords
dye
color
chromed
violet
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 CH215828A publication Critical patent/CH215828A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B45/00—Complex metal compounds of azo dyes
    • C09B45/02—Preparation from dyes containing in o-position a hydroxy group and in o'-position hydroxy, alkoxy, carboxyl, amino or keto groups
    • C09B45/14—Monoazo compounds
    • C09B45/16—Monoazo compounds containing chromium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  Verfahren zur Herstellung eines     Azofarbstoffes.       Vorliegendes Patent bezieht sich auf ein  Verfahren zur Herstellung eines     Azofarb-          stoffes,    dadurch gekennzeichnet, dass man die       Diazoverbindung    von 4,6 -     Dichlor-    2 -     amino-          phenol    mit     1-(Carbocyklohexyloxy)-amino-7-          oxynaphtha.lin-3-sulfonsäure    vereinigt.  



  Der so erhaltene Farbstoff ist getrocknet  ein dunkles Pulver, das sich in Wasser und       Natriumcarbonatlösung    mit     violettblauer,    in  konzentrierter Schwefelsäure mit blaustichig  roter Farbe löst, und färbt Wolle aus saurem  Bade in violetten Tönen, die beim     Nach-          chromieren    in ein lebhaftes Blaugrau von sehr  guter Licht-, Walk-,     Potting-    und     Carbonisier-          echtheit    übergehen. Die     chromierten    Färbun  gen besitzen eine gute Abendfarbe. Der Farb  stoff kann auch nach dem     Metachromverfahren     gefärbt werden.  



  <I>Beispiel:</I>  18 Teile     4,6-Dichlor-2-aminophenol    werden  in der üblichen Weise     diazotiert.    Die     Diazo-          verbindung    trägt man in eine überschüssiges  N     atriumcarbonat    enthaltende Lösung von 36,5  Teilen     1-(Carbocyklohexyloxy)-amino    -7-     oxy-          naphthalin-3-sulfonsäure    ein und rührt bei    gewöhnlicher Temperatur bis zum Verschwin  den der     Diazoverbindung.    Der     Farbstoff        wird          abfiltriert    und getrocknet.



  Process for the preparation of an azo dye. The present patent relates to a process for the production of an azo dye, characterized in that the diazo compound of 4,6-dichloro-2-aminophenol with 1- (carbocyclohexyloxy) -amino-7-oxynaphtha.lin-3- sulfonic acid combined.



  The dye obtained in this way is dried, a dark powder that dissolves in water and sodium carbonate solution with a violet-blue color, in concentrated sulfuric acid with a bluish red color, and dyes wool from an acid bath in violet tones, which when chromed turns into a vivid blue-gray of very good Skip light, fulled, potting and carbonizing fastness. The chromed colors have a good evening color. The dye can also be colored using the metachrome process.



  <I> Example: </I> 18 parts of 4,6-dichloro-2-aminophenol are diazotized in the usual way. The diazo compound is introduced into a solution of 36.5 parts of 1- (carbocyclohexyloxy) -amino-7-oxynaphthalene-3-sulfonic acid containing excess sodium carbonate, and the mixture is stirred at ordinary temperature until the diazo compound has disappeared. The dye is filtered off and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Azofarb- stoffes, dadurch gekennzeichnet, dass man die Diazoverbindung von 4,6 - Dichlor - 2 - amino- phenol mit 1-(Carbocyklohexyloxy)-amino-7- oxynaphthalin-3-sulfonsäure vereinigt. PATENT CLAIM: Process for the production of an azo dye, characterized in that the diazo compound of 4,6 - dichloro - 2 - aminophenol is combined with 1- (carbocyclohexyloxy) -amino-7-oxynaphthalene-3-sulfonic acid. Der so erhaltene Farbstoff ist getrocknet ein dunkles Pulver, das sich in Wasser und Natriumcarbonatlösung mit violettblauer, in konzentrierter Schwefelsäure mit blaustichig roter Farbe löst, und färbt Wolle aus saurem Bade in violetten Tönen, die beim Nach- chromieren in ein lebhaftes Blaugrau von sehr guter Licht-, Walk-, Potting- und Carbonisier- echtheit übergehen. Die chromierten Färbun gen besitzen eine gute Abendfarbe. The dye obtained in this way is dried, a dark powder that dissolves in water and sodium carbonate solution with a violet-blue color, in concentrated sulfuric acid with a bluish red color, and dyes wool from an acid bath in violet tones, which when chromed turns into a vivid blue-gray of very good Skip light, fulled, potting and carbonizing fastness. The chromed colors have a good evening color. Der Farb stoff kann auch nachdem Metachromverfahren gefärbt werden. The dye can also be colored using the metachrome process.
CH215828D 1939-02-13 1939-03-23 Process for the preparation of an azo dye. CH215828A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE215828X 1939-02-13
CH211927T 1939-03-23

Publications (1)

Publication Number Publication Date
CH215828A true CH215828A (en) 1941-07-15

Family

ID=25725118

Family Applications (1)

Application Number Title Priority Date Filing Date
CH215828D CH215828A (en) 1939-02-13 1939-03-23 Process for the preparation of an azo dye.

Country Status (1)

Country Link
CH (1) CH215828A (en)

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