CH221200A - Process for the preparation of an azo dye. - Google Patents

Process for the preparation of an azo dye.

Info

Publication number
CH221200A
CH221200A CH221200DA CH221200A CH 221200 A CH221200 A CH 221200A CH 221200D A CH221200D A CH 221200DA CH 221200 A CH221200 A CH 221200A
Authority
CH
Switzerland
Prior art keywords
dye
acidic
combined
azo dye
diazo
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 CH221200A publication Critical patent/CH221200A/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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

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

       dass    man     1-Di-          azobenzol-3-sulionsäureamid    in saurem Me  dium mit     1-Phenylamino-7-oxynaphthalin-3-          sulfonsäure    vereinigt und mit dem so erhal  tenen     Monoazofarbstoff        1-Diazo-2-phenoxy-          benzol    in alkalischem Medium vereinigt.  



  Der so erhaltene Farbstoff ist ein. dunkles  Pulver, das sich in Wasser mit gelbbrauner  Farbe, in konzentrierter Schwefelsäure mit       rotvioleiter    Farbe löst, und färbt Wolle aus  saurem oder neutralem Bade in vollen brau  nen Tönen von guter Wasch-,     Walk-,     Schweiss-, Seewasser-, Bügel- und Lichtecht  heit.  



  <I>Beispiel:</I>  Der aus der     Diazoverbindung    von<B>17,2</B>  Teilen     1-Aminobenzol-3-sulfonsäureamid    und  <B>33,8</B> Teilen des     Natriumsalzes    der     1-Phenyl-          amino-7-oxynaphthalin-3-sulfonsä,ur-o    in sau  rer Lösung hergestellte     Monoazofarbstoff     wird in Wasser mit überschüssigem Natrium  karbonat gelöst. Zu dieser Lösung     lässt    man    unter Kühlung eine aus<B>18,5</B> Teilen     1-Amino-          2-plienoxybeiizol    hergestellte     D.Iazolösung     laufen.

   Der     Disazofarbstoff    wird in üblicher  Weise abgeschieden, ausgewaschen und ge  trocknet.



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

       that 1-diazo-benzene-3-sulionic acid amide is combined with 1-phenylamino-7-oxynaphthalene-3-sulphonic acid in acidic medium and combined with the monoazo dye thus obtained 1-diazo-2-phenoxybenzene in an alkaline medium.



  The dye thus obtained is a. Dark powder, which dissolves in water with a yellow-brown color, in concentrated sulfuric acid with a red-violet color, and dyes wool from acidic or neutral baths in full brown tones that are wash, milled, sweat, seawater, ironing and lightfast Ness.



  <I> Example: </I> The one from the diazo compound of <B> 17.2 </B> parts of 1-aminobenzene-3-sulfonic acid amide and <B> 33.8 </B> parts of the sodium salt of 1-phenyl - amino-7-oxynaphthalene-3-sulfonic acid, ur-o monoazo dye produced in acidic solution is dissolved in water with excess sodium carbonate. A diazo solution prepared from 18.5 parts of 1-amino-2-plienoxybeiizole is run into this solution with cooling.

   The disazo dye is deposited, washed and dried in the usual way.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Azofarb- stoffes, dadurch gekennzeichnet, dass man 1- Diazobenzol-3-sulfonsäureamid in sauremMe ,vlamino-7-oxynaphthalin-3- dium mit 1-Phen- sulionsäure vereinigt und mit dem so erhal tenen Monoazofarbstoff 1-Diazo-2--phenoxy- benzol in alkalischem Medium vereinigt. PATENT CLAIM: A process for the production of an azo dye, characterized in that 1- diazobenzene-3-sulfonic acid amide in acidic Me, vlamino-7-oxynaphthalene-3-dium is combined with 1-phensulionic acid and the monoazo dye thus obtained 1- Diazo-2-phenoxybenzene combined in an alkaline medium. Der so erhaltene Farbstoff ist ein dunkles Pulver, das sich in Wasser mit gelbbrauner Farbe, in konzentrierter Schwefelsäure mit rotvioletter Farbe löst, lind färbt Wolle aus saurem oder neutralem Bade in vollen brau nen Tönen von guter Wasch-, Walk-, Schweiss-, Seewasser, Bügel- und Lichtecht heit. The dye obtained in this way is a dark powder that dissolves in water with a yellow-brown color, in concentrated sulfuric acid with a red-violet color, gently dyes wool from acidic or neutral baths in full brown tones of good washing, fulling, sweat, seawater , Iron and lightfastness.
CH221200D 1939-06-03 1940-04-27 Process for the preparation of an azo dye. CH221200A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE221200X 1939-06-03
CH217238T 1942-08-28

Publications (1)

Publication Number Publication Date
CH221200A true CH221200A (en) 1942-05-15

Family

ID=25725983

Family Applications (1)

Application Number Title Priority Date Filing Date
CH221200D CH221200A (en) 1939-06-03 1940-04-27 Process for the preparation of an azo dye.

Country Status (1)

Country Link
CH (1) CH221200A (en)

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