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CH202750A - Process for the preparation of an azo dye. - Google Patents

Process for the preparation of an azo dye.

Info

Publication number
CH202750A
CH202750A CH202750DA CH202750A CH 202750 A CH202750 A CH 202750A CH 202750D A CH202750D A CH 202750DA CH 202750 A CH202750 A CH 202750A
Authority
CH
Switzerland
Prior art keywords
preparation
azo dye
dye
azo
nitrobenzene
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 CH202750A publication Critical patent/CH202750A/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)
  • Coloring (AREA)

Description

  

  Verfahren zur     Rerstellung    eines     Azofarbstoffes.       Es wurde gefunden,     dass    man einen     Azo-          farbstoff    erhält, wenn man die     Diazoverbin-          duug    des     1-Amino-4-nitrobenzol-2-m6thylsul-          fons    mit     (2-Ätlioxy-5-metllyl-29'-sulionsäuxe-          6'-        chlor   <B>-</B>     4'-        chloracatylamino)   <B>-</B>     diplionylamin     der Formel  
EMI0001.0016     
    vereinigt.

   Der neue Farbstoff bildet ein  dunkles Pulver, das sich in Wasser mit roter  Farbe löst und das Wolle und Seide aus sau  rem Bade in -violetten Tönen färbt  <I>Beispiel:</I>  <B>216</B> Teile     1:-        A-mino-4-nitrobenzol-2-methyl-          sulfon    werden     diazotiert    und in die mineral  saure Lösung dieser     Diazoverbindung    die  Lösung des     NatriumsaIzes    aus 433 Teilen       (2-Ätlic>xy-        5-methyl-2'-sulfonsäure-6'-        chlor-          V-        chloracotylamiuo,)   <B>-</B>     diplienylamin    eingetra  gen.

   Nachdem die     Farbstoffbildung    beendet  ist, wird     abfiltriert,    der Farbstoff in Wasser    suspendiert und durch Verrühren mit einem  Alkali neutral gestellt. Der Farbstoff wird  eventuell durch Zusatz -eines Salzes ausge  schieden,     abfiltriert    und getrocknet.



  Process for the preparation of an azo dye. It has been found that an azo dye is obtained if the diazo compound of 1-amino-4-nitrobenzene-2-methylsulfone is used with (2-Ätlioxy-5-metllyl-29'-sulionsäuxe- 6'- chlorine <B> - </B> 4'- chloracatylamino) <B> - </B> diplionylamine of the formula
EMI0001.0016
    united.

   The new dye forms a dark powder that dissolves in water with a red color and colors the wool and silk from acid baths in violet tones <I> Example: </I> <B> 216 </B> Part 1: - A-mino-4-nitrobenzene-2-methyl-sulfone are diazotized and in the mineral acid solution of this diazo compound the solution of the sodium salt of 433 parts (2-Ätlic> xy- 5-methyl-2'-sulfonic acid-6'- chlor- V- chloracotylamiuo,) <B> - </B> diplienylamine entered.

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

Claims (1)

<B>PATENTANSPRUCH:</B> Verfahren zur Herstellung eines Azofaxb- stoffes, dadurch gekennzeichnet, dass man die Dia,zoverbindung des 1-A-mine-4-nitrobenzol- 2-metliylsulions mit (2<B>-</B> Äthoxy- <B>5</B> -methyl-2- sulfonsäure- <B>6-</B> chlor -4- chloracetylamino) -di- phenylamin der Formel EMI0001.0044 vereinigt. <B> PATENT CLAIM: </B> Process for the production of an azo fiber, characterized in that the diazo compound of the 1-A-mine-4-nitrobenzene-2-methylsulion is mixed with (2 <B> - </ B > Ethoxy- <B> 5 </B> -methyl-2-sulfonic acid- <B> 6- </B> chloro -4- chloroacetylamino) -diphenylamine of the formula EMI0001.0044 united. Der neue Farbstoff 'bildet ein dunkles Pulver, das sich in Wasser mit roter Farbe löst und das Wolle und Seide aus saurem Bade in violetten Tönen färbt. The new dye forms a dark powder that dissolves in water with a red color and dyes the wool and silk from acid baths in purple tones.
CH202750D 1937-03-15 1937-03-15 Process for the preparation of an azo dye. CH202750A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH202750T 1937-03-15
CH200063T 1938-11-09

Publications (1)

Publication Number Publication Date
CH202750A true CH202750A (en) 1939-01-31

Family

ID=25723423

Family Applications (1)

Application Number Title Priority Date Filing Date
CH202750D CH202750A (en) 1937-03-15 1937-03-15 Process for the preparation of an azo dye.

Country Status (1)

Country Link
CH (1) CH202750A (en)

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