CH216114A - Process for the preparation of an azo dye. - Google Patents

Process for the preparation of an azo dye.

Info

Publication number
CH216114A
CH216114A CH216114DA CH216114A CH 216114 A CH216114 A CH 216114A CH 216114D A CH216114D A CH 216114DA CH 216114 A CH216114 A CH 216114A
Authority
CH
Switzerland
Prior art keywords
azo dye
greenish
gray
preparation
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 CH216114A publication Critical patent/CH216114A/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
    • C09B29/00—Monoazo dyes prepared by diazotising and coupling
    • C09B29/24—Monoazo dyes prepared by diazotising and coupling from coupling components containing both hydroxyl and amino directing groups
    • C09B29/28—Amino naphthols
    • C09B29/30—Amino naphtholsulfonic acid
    • 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       diazotiertes        4,6-Dichlor-2-amino-l-oxybenzol     in alkalischem Medium mit     1-Phenylamino-          7-.oxynaphthalin-3-sulfonsäure    vereinigt.  



  Der so erhaltene Farbstoff ist ein grün  lich schwarzes Pulver, das sich in Natrium  carbonatlösung mit blauer, in verdünnten  Mineralsäuren mit olivgrüner und in     kon-          zentrierter    Schwefelsäure mit     violetter    Farbe  löst, und färbt Wolle aus saurem Bade in  grüngrauen Tönen, die beim     Nachchromieren     in ein     Olivgrau    von ausgezeichneten Echt  heitseigenschaften, insbesondere gegen Walke,       Dekatur,        Potting    und Licht, und von guter  Abendfarbe, übergehen.  



       Beispiel:     17,8 Teile     4,6-Diehlor-2-amino-l-oxyben-          zol    werden in der üblichen Weise     diazotiert.     Die erhaltene     Diazoverbindung    trägt man in  eine mit überschüssigem     Natriumcarbonat     versetzte Lösung von 31,5 Teilen 1-Phenyl-         amino-7-oxynaphthalin-3-sulfonsäure    ein und  rührt,     'bis    die     Kuppelung    beendet     ist.    Dann       wird.    der Farbstoff abgeschieden und ge  trocknet.



  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 diazotized 4,6-dichloro-2-amino-1-oxybenzene is combined with 1-phenylamino-7-oxynaphthalene-3-sulfonic acid in an alkaline medium .



  The dye obtained in this way is a greenish black powder that dissolves in sodium carbonate solution with blue, in dilute mineral acids with olive green and in concentrated sulfuric acid with violet color, and dyes wool from an acid bath in greenish-gray tones, which turn into a chromium-plating process Olive gray with excellent fastness properties, especially against fulling, decatur, potting and light, and with a good evening color.



       Example: 17.8 parts of 4,6-diehlor-2-amino-1-oxybenzene are diazotized in the usual way. The diazo compound obtained is introduced into a solution of 31.5 parts of 1-phenylamino-7-oxynaphthalene-3-sulfonic acid, to which excess sodium carbonate has been added, and the mixture is stirred until the coupling is complete. Then it will be. the dye deposited and dried ge.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Azofarb- stoffes., dadurch gekennzeichnet, dass mau diazotiertes, 4,6-Diehlor-2-amino-l-oxybenzal in alkalischem Medium mit 1-Phenylamino- 7-oxynaphthalin-3-sulfonsäure vereinigt. PATENT CLAIM: Process for the production of an azo dye., Characterized in that mau combines diazotized, 4,6-diehlor-2-amino-1-oxybenzal in an alkaline medium with 1-phenylamino-7-oxynaphthalene-3-sulfonic acid. Der so erhaltene Farbstoff ist ein grün lich schwarzes Pulver, das sich in Natrium- carbonatlösung mit blauer, in verdünnten Mineralsäuren mit olivgrüner und in kon zentrierter Schwefelsäure mit violetter Farbe löst, und färbt Wolle aus saurem Bade in grüngrauen Tönen, die beim Nachchromieren in ein Glivgrau von ausgezeichneten Echt heitseigenschaften, insbesondere gegen Walke, Dekatur, Potting und Licht, und von guter Abendfarbe, übergehen. The dye obtained in this way is a greenish black powder that dissolves in sodium carbonate solution with blue, in dilute mineral acids with olive green and in concentrated sulfuric acid with violet color. It dyes wool from an acid bath in greenish-gray tones, which turn into a Glive gray with excellent fastness properties, in particular against fulling, decatur, potting and light, and with a good evening color.
CH216114D 1938-06-09 1939-06-07 Process for the preparation of an azo dye. CH216114A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE216114X 1938-06-09
CH212419T 1942-12-21

Publications (1)

Publication Number Publication Date
CH216114A true CH216114A (en) 1941-07-31

Family

ID=25725238

Family Applications (1)

Application Number Title Priority Date Filing Date
CH216114D CH216114A (en) 1938-06-09 1939-06-07 Process for the preparation of an azo dye.

Country Status (1)

Country Link
CH (1) CH216114A (en)

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