CH221199A - Process for the preparation of an azo dye. - Google Patents

Process for the preparation of an azo dye.

Info

Publication number
CH221199A
CH221199A CH221199DA CH221199A CH 221199 A CH221199 A CH 221199A CH 221199D A CH221199D A CH 221199DA CH 221199 A CH221199 A CH 221199A
Authority
CH
Switzerland
Prior art keywords
combined
dye
sulfonic acid
acidic
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 CH221199A publication Critical patent/CH221199A/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
    • C09B33/00—Disazo and polyazo dyes of the types A->K<-B, A->B->K<-C, or the like, prepared by diazotising and coupling
    • C09B33/02—Disazo dyes
    • C09B33/08—Disazo dyes in which the coupling component is a hydroxy-amino compound
    • C09B33/10—Disazo dyes in which the coupling component is a hydroxy-amino compound in which the coupling component is an amino naphthol

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)

Description

  

  <B>Zusatzpatent</B> zum Hauptpatent Nr. 217238.         -Verfahren    zur     Herstellung        eines        Azofarbstoffes.       Vorliegendes Patent bezieht sich auf ein  Verfahren zur Herstellung eines     Azofarb-          stoffes,    dadurch     gekennzeichnet,

      dass man     1-          Diazobenzol-3-sulfonsäureamid    in saurem Me  dium mit     1-Phenyiamino-7-oxynaphthalin-          3-sulfonsäure    vereinigt     und    mit dem so er  haltenen     Monoazofarbstoff    die     Diazoverbin-          dung    von     4'-Aminobenzoyl-N-äthyl-l-naph-          thylamin    in alkalischem Medium vereinigt.  



  Der so. erhaltene Farbstoff ist ein dunkles  Pulver, das sich in Wasser mit havanna  brauner, in konzentrierter Schwefelsäure mit       violettroter    Farbe löst, und färbt Wolle aus  saurem oder neutralem Bade in     olivbraunen     Tönen von     guter    Echtheit, insbesondere gegen  Walke, Schweiss, Seewasser, Bügeln und  Licht.  



  <I>Beispiel:</I>  17,2 Teile     1-Aminobenzol-3-sulfonsäure-          amid    werden     diazotiert.    Die saure     Diazo-          lösun,g        vereinigt    man mit     einer    neutralen Lö-         sung    von 33,

  8 Teilen des     Natriumsalzes    der       1-Phenylamino    - 7 -     oxynaphthalin        -.    3 -     sulfon-          säure.    Nach     beendeter        Kupplung    wird der       Monoazofarbstoff    abgeschieden und in Was  ser mit überschüssigem Natriumkarbonat  wieder gelöst. In diese Lösung lässt man eine  aus 29 Teilen     4'-Aminobenzoyl-N-äthyl-l-          naphthylamin    hergestellte     Diazolösung    ein  laufen.

   Nach     beendeter    Bildung wird der       Disazofarbstoff    abgeschieden, filtriert, aus  gewaschen und getrocknet.



  <B> Additional patent </B> to main patent no. 217238. -Process for producing an azo dye. The present patent relates to a process for the production of an azo dye, characterized in that

      that 1-diazobenzene-3-sulfonic acid amide is combined in acidic medium with 1-phenyiamino-7-oxynaphthalene-3-sulfonic acid and the monoazo dye thus obtained is the diazo compound of 4'-aminobenzoyl-N-ethyl-l-naphtha - combined ethylamine in an alkaline medium.



  The so. The dye obtained is a dark powder that dissolves in water with havanna brown, in concentrated sulfuric acid with a purple-red color, and dyes wool from acidic or neutral baths in olive-brown shades of good fastness, especially to fulling, sweat, seawater, ironing and light.



  <I> Example: </I> 17.2 parts of 1-aminobenzene-3-sulfonic acid amide are diazotized. The acidic diazo solution is combined with a neutral solution of 33,

  8 parts of the sodium salt of 1-phenylamino - 7 - oxynaphthalene -. 3 - sulfonic acid. After the coupling has ended, the monoazo dye is deposited and redissolved in what water with excess sodium carbonate. A diazo solution prepared from 29 parts of 4'-aminobenzoyl-N-ethyl-l-naphthylamine is run into this solution.

   When the formation is complete, the disazo dye is deposited, filtered, washed off and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Azofarb- stoffes, dadurch gekennzeichnet, dass man 1- Diazobenzol-3-sulfonsäureamid in saurem Me dium mit 1-Phenylamino-7-oxynaphthalin-3- sulfonsäure vereinigt und mit dem so erhal tenen Monoazofarbstoff die Diazoverbindung von 4'-Aminobenzoyl-N-äthyl-l-naphthyl- amin in alkalischem Medium vereinigt. PATENT CLAIM: Process for the production of an azo dye, characterized in that 1-diazobenzene-3-sulfonic acid amide is combined with 1-phenylamino-7-oxynaphthalene-3-sulfonic acid in acidic medium and the diazo compound of 4 is combined with the monoazo dye thus obtained '-Aminobenzoyl-N-ethyl-l-naphthylamine combined in an alkaline medium. Der so erhaltene Farbstoff ist ein dunkles Pulver, das sich in Wasser mit havanna brauner, in konzentrierter Schwefelsäure mit violetter Farbe löst, und färbt Wolle aus sau rem oder neutralen Bade in olivbraunen Tö nen von guter Echtheit, insbesondere gegen Walke, Schweiss, Seewasser, Bügeln und Licht. The dye obtained in this way is a dark powder that dissolves in water with havana brown, in concentrated sulfuric acid with a violet color, and dyes wool from acidic or neutral baths in olive-brown shades of good fastness, especially against fulling, sweat, seawater, Ironing and light.
CH221199D 1939-06-03 1940-04-27 Process for the preparation of an azo dye. CH221199A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE221199X 1939-06-03
CH217238T 1942-08-28

Publications (1)

Publication Number Publication Date
CH221199A true CH221199A (en) 1942-05-15

Family

ID=25725982

Family Applications (1)

Application Number Title Priority Date Filing Date
CH221199D CH221199A (en) 1939-06-03 1940-04-27 Process for the preparation of an azo dye.

Country Status (1)

Country Link
CH (1) CH221199A (en)

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