CH162150A - Process for the production of a new azo dye. - Google Patents

Process for the production of a new azo dye.

Info

Publication number
CH162150A
CH162150A CH162150DA CH162150A CH 162150 A CH162150 A CH 162150A CH 162150D A CH162150D A CH 162150DA CH 162150 A CH162150 A CH 162150A
Authority
CH
Switzerland
Prior art keywords
production
azo dye
new azo
dye
azo
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 CH162150A publication Critical patent/CH162150A/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
    • C09B33/04—Disazo dyes in which the coupling component is a dihydroxy or polyhydroxy compound
    • C09B33/048—Disazo dyes in which the coupling component is a dihydroxy or polyhydroxy compound the coupling component being a bis-naphthol

Description

  

  Verfahren zur Herstellung eines neuen     Azofarbstoffes.       Es wurde gefunden,     dass    man einen neuen     Azofarbstoff    der Formel -  
EMI0001.0004     
    erhält, wenn man das     1-Diazo-2.5-diäthoxy-          4-ber)zoylaininobenzol    mit dem     Di-(2.        8-oxy-          naphthoyl)-bei)zidiiiid    kuppelt. Der so erhal  tene Farbstoff bildet ein     violettschwarzes     Pulver. Auf geeigneten Substraten, wie zum  Beispiel Baumwolle, Wolle, Kunstseide her  gestellt, färbt er diese in reinen, echten,  violetten Tönen.

      <I>Beispiel:</I>    <B>60</B> Teile     1-Amino-2        .5-diäthoxy-4-benzoyl-          aminobenzol    werden wie üblich     diazotiert    und  in eine Lösung von 52,4 Teilen des     Di-(2,8-          oxynaphthoyl)-benzidinid,        100        Teilen        30        %iger          Natriumhydroxydlösung,   <B>30</B> Teilen Soda und  2000 Teilen Wasser eingetragen. Der ge  bildete Farbstoff fällt sofort aus. Er wird  filtriert, gewaschen und. getrocknet.



  Process for the production of a new azo dye. It has been found that a new azo dye of the formula -
EMI0001.0004
    obtained when the 1-diazo-2,5-diethoxy-4-ber) zoylaininobenzene is coupled with the di- (2,8-oxynaphthoyl) -bei) zidiiiid. The dye obtained in this way forms a purple-black powder. Placed on suitable substrates such as cotton, wool, rayon, he dyes them in pure, genuine, purple tones.

      <I> Example: </I> <B> 60 </B> parts of 1-amino-2 .5-diethoxy-4-benzoyl-aminobenzene are diazotized as usual and dissolved in a solution of 52.4 parts of the di- ( 2,8-oxynaphthoyl) benzidinide, 100 parts of 30% strength sodium hydroxide solution, 30 parts of soda and 2000 parts of water are added. The dye formed precipitates out immediately. It is filtered, washed and. dried.

Claims (1)

<B>PATENTANSPRUCH:</B> Verfahren zur Herstellung eines Azofarb- stoffes der Formel- EMI0002.0003 dadurch gekennzeichnet, dass man das 1-Di- azo-2. 1#-diäthoxy-4-berizoylaminobenzol mit dem Di-(2 .8-oxynaphthoyl)-betizidinid kup pelt. Der so erhaltene Farbstoff bildet ein violettschwarzes Pulver. Auf geeigneten Sub- strateni wie zum Beispiel Baumwolle, Wolle, Kunstseide hergestellt, färbt er diese in reinen, echten, violetten Tönen- <B> PATENT CLAIM: </B> Process for the production of an azo dye of the formula EMI0002.0003 characterized in that the 1-di-azo-2. 1 # -diethoxy-4-berizoylaminobenzene couples with the di- (2 .8-oxynaphthoyl) betizidinide. The dye thus obtained forms a violet-black powder. Produced on suitable substrates such as cotton, wool, artificial silk, he dyes them in pure, genuine, purple tones.
CH162150D 1932-08-05 1932-08-05 Process for the production of a new azo dye. CH162150A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH162150T 1932-08-05

Publications (1)

Publication Number Publication Date
CH162150A true CH162150A (en) 1933-06-15

Family

ID=4415368

Family Applications (1)

Application Number Title Priority Date Filing Date
CH162150D CH162150A (en) 1932-08-05 1932-08-05 Process for the production of a new azo dye.

Country Status (1)

Country Link
CH (1) CH162150A (en)

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