CH233082A - Process for the preparation of an azo dye. - Google Patents

Process for the preparation of an azo dye.

Info

Publication number
CH233082A
CH233082A CH233082DA CH233082A CH 233082 A CH233082 A CH 233082A CH 233082D A CH233082D A CH 233082DA CH 233082 A CH233082 A CH 233082A
Authority
CH
Switzerland
Prior art keywords
dye
acid
combined
azo dye
acidic
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 CH233082A publication Critical patent/CH233082A/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

  

  Zusatzpatent zum Hauptpatent     Nr.   <B>217238.</B>    Verfahren zur Herstellung eines     Azofarbstoffes.       Vorliegendes Patent bezieht sieh auf ein  Verfahren zur Herstellung eines     Azofarb-          stoffQs,    dadurch gekennzeichnet,     dass    man     1-          Diazobenzol-3-sulionsäureamid    in saurem Me  dium mit     1-Phenylamino-7-oxynaphthalin-3-          sulionsä-Lire    vereinigt und mit dem so erhal  tenen     Monoazofarbstoff        1-Diazonaphtlialin-5-          sulions.#iure-phenylamid    in alkalischem Me  dium vereinigt.

    



  Der so erhaltene Farbstoff ist ein dunk  les, wasserlösliches Pulver, das sich in 'kon  zentrierter Schwefelsäure mit     bordoroter     Farbe löst, und färbt tierische Fasern aus  saurem oder neutralem Bade in     Olivetönen     von sehr guter     Walk-    und Schweissechtheit  und guter Lichtechtheit.  



  <I>Beispiel:</I>  Eine aus<B>17,2</B> Teilen     1-Aminobenzol-3-          sulfamid    hergestellte     Diazolösung        lässt    man  zu einer schwach sauren Lösung von<B>31,5</B> Tei  len     1-Plienylamino-7-oxynaphthalin-3-sulion-          säure    laufen. Der Farbstoff wird     ausgewa-          sehen,        abfiltriert    und mit überschüssiger Soda  weiter in Lösung gebracht.

   Zu dieser Lösung         lässt    man unter Kühlung eine aus<B>29</B> Tei  len     1-Aminonaphthalin-5-sulionsäure-phenyl-          amid    hergestellte     Diazolösung    laufen. Der so  erhaltene     Disazofarbstoff    wird abgeschieden  und getrocknet.



  Additional patent to 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 Qs, characterized in that 1-diazobenzene-3-sulionic acid amide is combined in acidic medium with 1-phenylamino-7-oxynaphthalene-3-sulionic acid and thus obtained ten monoazo dye 1-Diazonaphthlialin-5-sulions. # iure-phenylamide combined in an alkaline medium.

    



  The dye obtained in this way is a dark, water-soluble powder which dissolves in concentrated sulfuric acid with a boron red color, and dyes animal fibers from acidic or neutral baths in olive shades of very good fastness to milling and perspiration and good fastness to light.



  <I> Example: </I> A diazo solution prepared from <B> 17.2 </B> parts of 1-aminobenzene-3-sulfamide is allowed to form a weakly acidic solution of <B> 31.5 </B> parts len 1-plienylamino-7-oxynaphthalene-3-sulionic acid run. The dye is washed out, filtered off and further dissolved with excess soda.

   A diazo solution prepared from 29 parts of 1-aminonaphthalene-5-sulionic acid phenylamide is allowed to run into this solution with cooling. The disazo dye thus obtained is deposited and dried.

Claims (1)

<B>PATENTANSPRUCH:</B> Verfahren zur Herstellung eines Azo- farbstoffes, dadurch gekennzeichnet, dass man 1-Diazobenzol-3-sulionsä-uxeamid in saurem Medium mit 1-Phenylamino-7-oxyuaphthalin- 3-su-Ifonsäure vereinigt und mit dem so er haltenen Monoazofarbstoff 1-Diazonaphtha- lin-ä-sulfonsä,ure-phenylamid in alkalischem Medium vereinigt. <B> PATENT CLAIM: </B> Process for the production of an azo dye, characterized in that 1-diazobenzene-3-sulionsä-uxeamide is combined with 1-phenylamino-7-oxyuaphthalene-3-su-ifonic acid in an acidic medium and combined with the monoazo dye obtained in this way, 1-diazonaphthalin-a-sulfonic acid, ure-phenylamide in an alkaline medium. Der so erhaltene Farbstoff ist ein dunk les, wasserlösliches Pulver, das sieli in kon zentrierter Sel-iweielsäure mit bordoroter Farbe löst, und färbt tierische Fasern aus saurem oder neutralem Bade in Olivetönen von sehr guter Walk- und Schweissechtheit und guter Lielitechtheit. The dye thus obtained is a dark, water-soluble powder that dissolves in concentrated sel-iweielic acid with a Bordeaux color, and dyes animal fibers from acidic or neutral bath in olive shades of very good mill and perspiration fastness and good Lielite fastness.
CH233082D 1942-08-28 1942-08-28 Process for the preparation of an azo dye. CH233082A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH217238T 1942-08-28
CH233082T 1942-08-28

Publications (1)

Publication Number Publication Date
CH233082A true CH233082A (en) 1944-06-30

Family

ID=25725980

Family Applications (1)

Application Number Title Priority Date Filing Date
CH233082D CH233082A (en) 1942-08-28 1942-08-28 Process for the preparation of an azo dye.

Country Status (1)

Country Link
CH (1) CH233082A (en)

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