CH215827A - Process for the preparation of an azo dye. - Google Patents

Process for the preparation of an azo dye.

Info

Publication number
CH215827A
CH215827A CH215827DA CH215827A CH 215827 A CH215827 A CH 215827A CH 215827D A CH215827D A CH 215827DA CH 215827 A CH215827 A CH 215827A
Authority
CH
Switzerland
Prior art keywords
azo dye
preparation
properties
good
carbethoxyamino
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 CH215827A publication Critical patent/CH215827A/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)
  • Coloring (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     Azofarbstoffes,     dadurch gekennzeichnet, dass man die     Diazo-          verbindung    von     6-Clilor-2-aminophenol    mit     1-          Carbäthoxyamino    -7-     oxynaphthalüi    - 3 -     sulfon-          säure    vereinigt.  



  Der so erhaltene     Farbstoff    ist getrocknet  ein dunkles Pulver, das sich in Wasser mit  violetter, in konzentrierter Schwefelsäure mit  roter Farbe löst, und färbt Wolle aus saurem  Bade in     Bordotönen,    die beim     Chromieren    in  ein     rotstichiges    Grau übergehen, das neben  sehr guten sonstigen Eigenschaften eine aus  gezeichnete Lichtechtheit und gutes     Egalisier-          vermögen    besitzt.  



  <I>Beispiel:</I>  14,4 Teile     6-Chlor-2-aminophenol    werden       diazotiert    und die     Diazolösung    mit einer über  schüssiges     Natriumcarbonat    enthaltenden Lö  sung von 32 Teilen     1-Carbäthoxyamino-7-          oxynaphthaliri-3-sulfonsäure    vereinigt. Nach    beendeter Kupplung wird der Farbstoff ab  geschieden und getrocknet.



  Process for the preparation of an azo dye. The present patent relates to a process for the preparation of an azo dye, characterized in that the diazo compound of 6-chloro-2-aminophenol is combined with 1-carbethoxyamino-7-oxynaphthalene-3-sulfonic acid.



  The dye obtained in this way is dried, a dark powder that dissolves in water with a violet color, in concentrated sulfuric acid with a red color, and dyes wool from an acid bath in bordeaux tones, which turn into a reddish gray when chroming, which in addition to very good other properties has excellent light fastness and good leveling properties.



  <I> Example: </I> 14.4 parts of 6-chloro-2-aminophenol are diazotized and the diazo solution is combined with a solution of 32 parts of 1-carbethoxyamino-7-oxynaphthalen-3-sulfonic acid containing excess sodium carbonate. After the coupling has ended, the dye is separated off and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Azofarb- Stoffes, dadurch gekennzeichnet, dass man die Diazoverbindung von 6-Clilor-2-aminophenol mit 1- Carbäthoxyamino -7- oxynaphthalin - 3 - sulfonsäure vereinigt. Claim: Process for the production of an azo dye substance, characterized in that the diazo compound of 6-chloro-2-aminophenol is combined with 1-carbethoxyamino-7-oxynaphthalene-3-sulfonic acid. Der so erhaltene Farbstoff ist getrocknet ein dunkles Pulver, das sich in Wasser mit violetter, in konzentrierter Schwefelsäure mit roter Farbe löst, und färbt Wolle aus saurem Bade in Bordotönen, die beim Chromiereri in ein rotstichiges Grau übergehen, das neben sehr guten sonstigen Eigenschaften eine aus gezeichnete Lichtechtheit und gutes Egalisier- vermögen besitzt. The dye obtained in this way is dried, a dark powder that dissolves in water with a violet color, in concentrated sulfuric acid with a red color, and dyes wool from an acidic bath in bordeaux tones, which turn into a reddish gray when chromieri, which in addition to very good other properties is a has excellent light fastness and good leveling properties.
CH215827D 1939-02-13 1939-03-23 Process for the preparation of an azo dye. CH215827A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE215827X 1939-02-13
CH211927T 1939-03-23

Publications (1)

Publication Number Publication Date
CH215827A true CH215827A (en) 1941-07-15

Family

ID=25725117

Family Applications (1)

Application Number Title Priority Date Filing Date
CH215827D CH215827A (en) 1939-02-13 1939-03-23 Process for the preparation of an azo dye.

Country Status (1)

Country Link
CH (1) CH215827A (en)

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