CH216119A - Process for the preparation of an azo dye. - Google Patents

Process for the preparation of an azo dye.

Info

Publication number
CH216119A
CH216119A CH216119DA CH216119A CH 216119 A CH216119 A CH 216119A CH 216119D A CH216119D A CH 216119DA CH 216119 A CH216119 A CH 216119A
Authority
CH
Switzerland
Prior art keywords
green
blue
azo dye
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 CH216119A publication Critical patent/CH216119A/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)
  • Coloring (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  Verfahren zur Herstellung eines     Azofarbstof%s.       Vorliegendes Patent bezieht sich auf ein  Verfahren zur Herstellung eines     Azofarb-          stoffes,    dadurch gekennzeichnet, dass man       diazotiertes        4-Methyl-6-nitro-2-amino-l-oxy-          benzol    in alkalischem Medium mit     1-Phenyl-          amino-    7     ,>oxynaphthalin-    3     -sulfonsäure    ver  einigt.  



  Der so erhaltene Farbstoff ist ein dunkles  Pulver, das sich in     Natriumcarbonatlösung     mit blauer, in verdünnten Mineralsäuren mit  olivgrüner und in konzentrierter Schwefel  säure mit violetter Farbe löst, und färbt       Wolle    in     blaugrünen    Tönen, die beim     Nach-          chromieren    in ein Grüngrau von hervorragen  den Echtheitseigenschaften, insbesondere ge  gen Licht, Walke und     Potting,    übergehen.

           Beispiel:       16,8 Teile     4-Methyl-6-nitro-2-amino-l-oxy-          benzol        werden        diazotiert.    Die erhaltene     Diazo-          suspension    trägt man in     eine    mit überschüssi  gem     Natriumcarbonat    versetzte Lösung von  <B>31,5</B> Teilen 1-Phenylamino-7-oxynaphthalin-         3-sulfonsäure    ein.     Nach    beendeter     Kuppelung     wird der     gebildete    Farbstoff abgeschieden  und getrocknet.



  Process for the preparation of an azo dye% s. The present patent relates to a process for the production of an azo dye, characterized in that diazotized 4-methyl-6-nitro-2-amino-1-oxybenzene in an alkaline medium with 1-phenylamino-7,> oxynaphthalene-3-sulfonic acid united ver.



  The dye obtained in this way is a dark 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 in blue-green tones which, when chromium-plated, turn green-gray with excellent fastness properties especially against light, fulling and potting.

           Example: 16.8 parts of 4-methyl-6-nitro-2-amino-1-oxybenzene are diazotized. The diazo suspension 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. After the coupling has ended, the dye formed is deposited and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Azofarb- stoffes, dadurch gekennzeichnet, dass man idiazotiertes 4-Methyl-6-nitro-2-@amino-l-oxy- benzol in alkalischem Medium mit 1-Phenyl- amino- 7 -oxynaphthalin- 3 -sulfonsäure ver einigt. PATENT CLAIM: Process for the production of an azo dye, characterized in that idiazotized 4-methyl-6-nitro-2- @ amino-1-oxybenzene in an alkaline medium with 1-phenylamino- 7 -oxynaphthalene- 3 - sulfonic acid united. Der so erhaltene Farbstoff ist ein dunkles Pulver, das sich in Natriumcarbonatlösung mit blauer, in verdünnten Mineralsäuren mit olivgrüner und in konzentrierter Schwefel säure mit violetter Farbe löst, und färbt Wolle in blaugrünen Tönen, die beim Nach- chromieren in ein Grüngrau von hervorragen den Echtheitseigenschaften, insbesondere ge gen Licht, Walke und Potting, übergehen. The dye obtained in this way is a dark 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 in blue-green tones which, when chromium-plated, turn green-gray with excellent fastness properties especially against light, fulling and potting.
CH216119D 1938-06-09 1939-06-07 Process for the preparation of an azo dye. CH216119A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE216119X 1938-06-09
CH212419T 1942-12-21

Publications (1)

Publication Number Publication Date
CH216119A true CH216119A (en) 1941-07-31

Family

ID=25725243

Family Applications (1)

Application Number Title Priority Date Filing Date
CH216119D CH216119A (en) 1938-06-09 1939-06-07 Process for the preparation of an azo dye.

Country Status (1)

Country Link
CH (1) CH216119A (en)

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