CH192043A - Process for the production of a new azo dye. - Google Patents

Process for the production of a new azo dye.

Info

Publication number
CH192043A
CH192043A CH192043DA CH192043A CH 192043 A CH192043 A CH 192043A CH 192043D A CH192043D A CH 192043DA CH 192043 A CH192043 A CH 192043A
Authority
CH
Switzerland
Prior art keywords
azo dye
new azo
production
diazo compound
dye
Prior art date
Application number
Other languages
German (de)
Inventor
Gesellschaft Fuer Chemis Basel
Original Assignee
Chem Ind Basel
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 Chem Ind Basel filed Critical Chem Ind Basel
Publication of CH192043A publication Critical patent/CH192043A/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. 190424.    Verfahren zur Herstellung eines neuen     Azofarbstoffes.       Es wurde gefunden, dass man einen neuen       Azofarbstoff    erhält, wenn man die     Diazover-          bindung    des     1-Aminobenzol-4-acetylamino-2-          benzylsulfons    in saurem Medium mit     1-Amino-          8-ogynaphthalirr-3,6-disulfonsäui-e    vereinigt  und diesen so erhältlichen Farbstoff in al  kalischem Medium mit der     Diazoverbindung     von     4-Chlor-2-aminodiphenyläther    umsetzt.

    Der neue     Azofarbstoff    bildet ein dunkles  Pulver, das sich in Wasser mit blauer Farbe  löst und Wolle aus saurem Bade in blau  schwarzen Tönen von     guten    Echtheitseigen  schaften färbt.  



  <I>Beispiel;</I>  30,4 Teile     1-Aminobenzol-4-acetylamirio-          2-benzylsulfon    werden fein pulverisiert, mit  30 Teilen Salzsäure und 30 Teilen Wasser  gut angeschwemmt und bei<B>500</B> in Lösung  gebracht. Beim Abkühlen fällt das Chlor  hydrat der Base irr feiner Form aus. Man  gibt 100 Teile Eis zu     irnd    innerhalb etwa  10 Minuten lässt man die berechnete Menge       Natriumnitrit        zutropfen.    Nach etwa 20 Mi-    nuten ist die     Diazotierung    fertig.

   Diese     Diazo-          lösung    giesst man nun unter Rühren zu 31,9  Teilen fein gefällter     1-Amino-8-ogynaphthalin-          3,6-disulfonsäure    und rührt etwa 3 Stunden  bei gewöhnlicher Temperatur. Dann trägt  man 35 Teile     Natriumcarbonat    ein und ver  einigt     sodaalkalisch    mit einer     Diazolösung     aus 22,1 Teilen     4-Chlor-2-aminodiphenyläther,     die auf bekannte Weise hergestellt wird.  Der Farbstoff fällt sofort aus und wird ab  filtriert. Durch     Umlösen    und     Aussalzen    wird  er gereinigt.

   Nach dem Trocknen erhält man  ein dunkles Pulver, das sich in Wasser mit  blauer Farbe löst und Wolle aus saurem  Bade blauschwarz färbt.



  <B> Additional patent </B> to main patent no. 190424. Process for the production of a new azo dye. It has been found that a new azo dye is obtained if the diazo compound of 1-aminobenzene-4-acetylamino-2-benzylsulfone is combined with 1-amino-8-ogynaphthalir-3,6-disulfonic acid in an acid medium and this thus obtainable dye is reacted in alkaline medium with the diazo compound of 4-chloro-2-aminodiphenyl ether.

    The new azo dye forms a dark powder that dissolves in water with a blue color and dyes wool from an acid bath in blue-black shades with good fastness properties.



  <I> Example; </I> 30.4 parts of 1-aminobenzene-4-acetylamirio-2-benzylsulfone are finely powdered, washed with 30 parts of hydrochloric acid and 30 parts of water and in solution at <B> 500 </B> brought. On cooling, the chlorine hydrate of the base precipitates out in fine form. 100 parts of ice are added and the calculated amount of sodium nitrite is added dropwise within about 10 minutes. The diazotization is finished after about 20 minutes.

   This diazo solution is then poured into 31.9 parts of finely precipitated 1-amino-8-ogynaphthalene-3,6-disulphonic acid with stirring and stirred for about 3 hours at ordinary temperature. Then one carries 35 parts of sodium carbonate and united ver soda-alkaline with a diazo solution of 22.1 parts of 4-chloro-2-aminodiphenyl ether, which is prepared in a known manner. The dye precipitates immediately and is filtered off. It is cleaned by dissolving and salting out.

   After drying, a dark powder is obtained which dissolves in water with a blue color and dyes wool from an acid bath blue-black.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Azofarbstuffes, dadurch gekennzeichnet, dass man die Diazoverbindung des 1-Aminoben- zol-4-acetylamiiro-2-benzylsulfons in saurem Medium mit 1-Amino-8-ogynaphthalin-3,6- disulfonsäure vereinigt und diesen so erhält- liehen Farbstoff in alkalischem Medium mit der Diazoverbindung von 4-Chlor-2-amino- diphenyläther umsetzt. PATENT CLAIM: Process for the production of a new azo dye, characterized in that the diazo compound of 1-aminobenzene-4-acetylamiiro-2-benzylsulfone is combined in an acidic medium with 1-amino-8-ogynaphthalene-3,6-disulfonic acid and these the dye obtained in this way is reacted in an alkaline medium with the diazo compound of 4-chloro-2-aminodiphenyl ether. Der neue Azofarbstoff bildet ein dunkles Pulver, das sich in Wasser mit blauer Farbe löst und Wolle aus saurem Bade in :)lau- schwarzen Tönen von guten Echtheitseigen schaften färbt. The new azo dye forms a dark powder which dissolves in water with a blue color and dyes wool from an acid bath in:) lukewarm shades with good fastness properties.
CH192043D 1936-01-30 1936-01-30 Process for the production of a new azo dye. CH192043A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH190424T 1936-01-30
CH192043T 1936-01-30

Publications (1)

Publication Number Publication Date
CH192043A true CH192043A (en) 1937-07-15

Family

ID=25721983

Family Applications (1)

Application Number Title Priority Date Filing Date
CH192043D CH192043A (en) 1936-01-30 1936-01-30 Process for the production of a new azo dye.

Country Status (1)

Country Link
CH (1) CH192043A (en)

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