CH230188A - Process for the preparation of an azo dye. - Google Patents

Process for the preparation of an azo dye.

Info

Publication number
CH230188A
CH230188A CH230188DA CH230188A CH 230188 A CH230188 A CH 230188A CH 230188D A CH230188D A CH 230188DA CH 230188 A CH230188 A CH 230188A
Authority
CH
Switzerland
Prior art keywords
azo dye
sulfonic acid
preparation
gray
color
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 CH230188A publication Critical patent/CH230188A/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)

Description

  

  Verfahren zur Herstellung eines     Azofarbstoffes.       Vorliegendes Patent bezieht sich auf     ein     Verfahren zur Herstellung eines     Azofarbstof-          fes,    dadurch     gekennzeichnet,    dass man     diazo-          tiertes        1-.Amino"-inaphthal'in-7        -sulfonsäure-          phenylamid,

          hergestellt    durch Umsetzung von       1-Acetylamino-naphthalin-7-sulfochlorid        mit          Anihn    und     Abspalten    der     Acetylgruppe,    in       alkalischem    Medium mit     1-Phenylamino-7-          oxynaphtha1in-3-sulfonsäure    vereinigt.  



  Der so erhaltene     Azofarbstoff        ist        ein          dunkles    Pulver, das sich in     Wasser    mit grauer,  in     konzentrierter        Schwefelsäure    mit     violetter     Farbe löst, und färbt     Wohle    aus saurem     oller          neutralem    Bade in grauen     Farbtönen    von gu  ter     Walk-,    Schweiss- und,     Ieichtechtheit.     



  <I>Beispiel:</I>  Eine aus 29 Teilen     1-Amino-naphthaIin-7-          sulfonsäure-phenylamid,    das durch     Umsetzen     von     1-Acetylamino-naphthalin-7-sulfochlorid     mit Anilin und     Abspalten    der     Aoetylgruppe     z.

   B. durch Kochen     mit        verdünnter        Salzsäure          heTgesteldt    wurde,     berewtete        Diazolösung        lä-sst     man in eine mit. überschüssigem Natriumkar-         bonat        versetzte    Lösung von 31,5     Teilen        1-          Phenylamino    - 7     -:oxynaphthaltn-        3-siüf        onsäure     laufen.

   Der erhaltene     Farbstoff        wird    abge  schieden 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 diazo-tated 1-amino "-inaphthalen-7-sulfonic acid phenylamide,

          produced by reacting 1-acetylamino-naphthalene-7-sulfochloride with anihn and splitting off the acetyl group, combined with 1-phenylamino-7-oxynaphthalene-3-sulfonic acid in an alkaline medium.



  The azo dye thus obtained is a dark powder which dissolves in water with a gray color, in concentrated sulfuric acid with a violet color, and colors well-being from acid or neutral bath in gray shades of good fullness, perspiration and lightfastness.



  <I> Example: </I> A from 29 parts of 1-amino-naphthaIin-7-sulfonic acid-phenylamide, which is obtained by reacting 1-acetylamino-naphthalene-7-sulfochloride with aniline and splitting off the aoetyl group e.g.

   B. HeTgesteldt by boiling with dilute hydrochloric acid, rewtete diazo solution is left in a with. A solution of 31.5 parts of 1-phenylamino-7-: oxynaphthalene-3-sulfonic acid mixed with excess sodium carbonate.

   The dye obtained is deposited and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Azofarb- stoffes, dadurch gekennzeichnet, dass man dfia- zotiertes 1-Amino-nephthallin-7-sulfonsäurie- phenylamid, hergestellt durch Umsetzen von 1-Acetylamino-naphthalin-7-.sulfochlorid mit Anilin und Abspalten der Acetylgruppe, PATENT CLAIM: A process for the production of an azo dye, characterized in that dfiacotized 1-amino-nephthalline-7-sulfonic acid phenylamide, produced by reacting 1-acetylamino-naphthalene-7-sulfochloride with aniline and splitting off the acetyl group , in alkaMschem Medium mit 1-Phenylamino-7- oxynaphthialin-3-sulfon säure vereinigt. Der so erhaltene Azofarbstoff ist ein dunkles Pulver"düs sich in Wasser mit grauer, in konzentrierter Schwefelsäure mit violetter Farbe löst, und färbt Wolle aus, saurem oder neutralem Bade in grauen Farbtönen von guter Walk-, Schweiss- und Lichtechtheit. combined in alkaline medium with 1-phenylamino-7-oxynaphthialin-3-sulfonic acid. The azo dye thus obtained is a dark powder that dissolves in water with a gray color and in concentrated sulfuric acid with a violet color, and dyes wool from acidic or neutral baths in gray shades of good fullness, perspiration and lightfastness.
CH230188D 1941-09-23 1942-09-01 Process for the preparation of an azo dye. CH230188A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE230188X 1941-09-23
CH212419T 1942-12-21

Publications (1)

Publication Number Publication Date
CH230188A true CH230188A (en) 1943-12-15

Family

ID=25725246

Family Applications (1)

Application Number Title Priority Date Filing Date
CH230188D CH230188A (en) 1941-09-23 1942-09-01 Process for the preparation of an azo dye.

Country Status (1)

Country Link
CH (1) CH230188A (en)

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