CH202741A - Process for the preparation of an azo dye. - Google Patents

Process for the preparation of an azo dye.

Info

Publication number
CH202741A
CH202741A CH202741DA CH202741A CH 202741 A CH202741 A CH 202741A CH 202741D A CH202741D A CH 202741DA CH 202741 A CH202741 A CH 202741A
Authority
CH
Switzerland
Prior art keywords
azo dye
preparation
dye
acid
amino
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 CH202741A publication Critical patent/CH202741A/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
    • C09B29/06—Monoazo dyes prepared by diazotising and coupling from coupling components containing amino as the only directing group
    • C09B29/08—Amino benzenes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Coloring (AREA)

Description

  

  Verfahren zur     flerstellung    eines     Azofarbstoffes.       Es wurde gefunden,     dass    man einen     Azo-          farbstoff    erhält, wenn man die     Diazoverbin-          clung    des     1-Amino-4-nitrobenzol-2-metliylsul-          fons    mit     (2-Äthoxy-5-methyl-2'-sulfonsäure-          4'-acetylamino)-diplienylamin    der Formel  
EMI0001.0012     
    vereinigt.

   Der neue Farbstoff bildet ein  dunkles Pulver, das sich in Wasser mit -violet  ter Farbe löst und das Wolle und Seide aus  saurem Bade in     violettblauen    Tönen färbt.  



  <I>Beispiel:</I>  <B>216</B> Teile     1-Amino-4-nitrobenzol-2-methyl-          sulion    werden     diazotiert    und in die mineral  saure Lösung dieser     Diazoverbindung    die Lö  sung des     Natriumsalzes    aus 364 Teilen     (2-          Äthoxy   <B>- 5 -</B>     methyl   <B>-</B>     2'-        sulionsäure   <B>-</B>     4'-        acetyl        -          amino)-d-iphenylamin    eingetragen.

   Nachdem  die     Farbstoffbilduno-    beendet ist, wird     abfil-          triert,    der Farbstoff in Wasser suspendiert    und durch Verrühren mit einem Alkali neu  tral gestellt. Der Farbstoff wird eventuell  durch Zusatz eines Salzes ausgeschieden,     ab-          filtriert    und getrocknet.



  Process for the production of an azo dye. It has been found that an azo dye is obtained when the diazo compound of 1-amino-4-nitrobenzene-2-methylsulfone is used with (2-ethoxy-5-methyl-2'-sulfonic acid-4'- acetylamino) -diplienylamine of the formula
EMI0001.0012
    united.

   The new dye forms a dark powder that dissolves in water with a violet color and dyes the wool and silk from acid baths in violet-blue tones.



  <I> Example: </I> <B> 216 </B> parts of 1-amino-4-nitrobenzene-2-methylsulion are diazotized and the solution of the sodium salt of 364 parts in the mineral acid solution of this diazo compound ( 2- Ethoxy <B> - 5 - </B> methyl <B> - </B> 2'-sulionic acid <B> - </B> 4'-acetyl-amino) -d-iphenylamine.

   After the dye formation has ended, it is filtered off, the dye is suspended in water and neutralized by stirring with an alkali. The dye is possibly precipitated by adding a salt, filtered off and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Azofarb- stoffes, dadurch gekennzeichnet, dass man die Diazoverbindung des 1-Amino-4-nitrobenzol- 2-methylsulfons mit (2-Ätlioxy-5-metliyl-2'- sulionsäure-4'-acetylamino)-diplienylamin der Formel EMI0001.0042 vereinigt. Der neue Farbstoff bildet ein dunkles Pulver, das sich in Wasser mit violetter Farbe löst und das Wolle und Seide aus sau rem Bade in violettblauen Tönen färbt. PATENT CLAIM: Process for the production of an azo dye, characterized in that the diazo compound of 1-amino-4-nitrobenzene-2-methylsulphone is mixed with (2-Ätlioxy-5-methyl-2'-sulionic acid-4'-acetylamino) - diplienylamine of the formula EMI0001.0042 united. The new dye forms a dark powder that dissolves in water with a purple color and colors the wool and silk from acid baths in purple-blue tones.
CH202741D 1937-03-15 1937-03-15 Process for the preparation of an azo dye. CH202741A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH202741T 1937-03-15
CH200063T 1938-11-09

Publications (1)

Publication Number Publication Date
CH202741A true CH202741A (en) 1939-01-31

Family

ID=25723414

Family Applications (1)

Application Number Title Priority Date Filing Date
CH202741D CH202741A (en) 1937-03-15 1937-03-15 Process for the preparation of an azo dye.

Country Status (1)

Country Link
CH (1) CH202741A (en)

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