CH220424A - Process for the preparation of a tetrakisazo dye. - Google Patents

Process for the preparation of a tetrakisazo dye.

Info

Publication number
CH220424A
CH220424A CH220424DA CH220424A CH 220424 A CH220424 A CH 220424A CH 220424D A CH220424D A CH 220424DA CH 220424 A CH220424 A CH 220424A
Authority
CH
Switzerland
Prior art keywords
dye
preparation
tetrakisazo dye
sulfonic acid
tetrakisazo
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 CH220424A publication Critical patent/CH220424A/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
    • C09B35/00—Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)
  • Detergent Compositions (AREA)

Description

  

  <B>Zusatzpatent</B> zum Hauptpatent     Nr.217243.       Verfahren zur Herstellung eines     Tetrakisazofarbstoffes.            Gegenstand    des     vorliegenden    Zusatzpaten  tes ist ein Verfahren zur     Herstellung    eines       Tetrakisazofarbstoffes,    dadurch     ,gekennzeich-          net,        da.ss    man die     Tetrazoverbindun;g    aus       4.4'-Diaminos,tilben-2.2'-disulfo#nsäure    mit       4-Acetoacetylamino-1.        1'-azobenzol-4'-sulfon-          säure    kuppelt.

   Der erhaltene Farbstoff färbt  Baumwolle in orangen Tönen von sehr ;guter       Wasser-        und        Waschechtheit.     



  <I>Beispiel:</I>  37-0 Gewichtsteile     4.4'-Diaminostilben-          2        .2'-disulfonsäure    werden wie üblich     tetrazo-          tiert    und mit 76,6     Gewiehtsteilen    des Na  triumsalzes der     4-Acetoa%cetylamino-1    .     1'-azo-          benzol-4'-sulfonsäure    in     so,daalkalie@cher    Lö-         sung    gekuppelt.

   Der erhaltene Farbstoff  färbt     Baumwolle        in    orangen Tönen von sehr       guter        Waeser-    und Waschechtheit.



  <B> Additional patent </B> to main patent No. 217243. Process for the preparation of a tetrakisazo dye. The subject of the present additional patent is a process for the production of a tetrakisazo dye, characterized in that the tetrazo compound is obtained from 4.4'-diamino, tilbene-2.2'-disulfonic acid with 4-acetoacetylamino-1. 1'-azobenzene-4'-sulfonic acid couples.

   The dye obtained dyes cotton in orange shades of very good water and wash fastness.



  <I> Example: </I> 37-0 parts by weight of 4,4'-diaminostilbene-2 .2'-disulphonic acid are tetrazo- tated as usual and cetylamino-1 with 76.6 parts by weight of the sodium salt of 4-acetoa%. 1'-azobenzene-4'-sulfonic acid coupled in such an alkaline solution.

   The dye obtained dyes cotton in orange shades of very good fastness to water and washing.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Tetra- kisazofarbstoffes, dadurch ;gekennzeichnet, dass man ,die Tetrazoverbindung aus 4. 4'-Di- aminostüben-2. 2'-dis@wlfonsäure mit 4-Aceto- acetylamino -1 .<B>l'-</B> azobenzol - 4'- sulfonsäure kuppelt. PATENT CLAIM: Process for the production of a tetrakisazo dye, characterized in that the tetrazo compound is obtained from 4, 4'-diamino beet-2. 2'-dis @ sulfonic acid with 4-acetoacetylamino -1. <B> l'- </B> azobenzene - 4'-sulfonic acid couples. Der erhaltene Farbstoff färbt Baumwolle in orangen Tönen von sehr .guter Wasser- und Waschechtheit. The dye obtained dyes cotton in orange shades of very good water and wash fastness.
CH220424D 1939-12-09 1940-10-07 Process for the preparation of a tetrakisazo dye. CH220424A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE220424X 1939-12-09
CH217243T 1940-10-07

Publications (1)

Publication Number Publication Date
CH220424A true CH220424A (en) 1942-03-31

Family

ID=25726000

Family Applications (1)

Application Number Title Priority Date Filing Date
CH220424D CH220424A (en) 1939-12-09 1940-10-07 Process for the preparation of a tetrakisazo dye.

Country Status (1)

Country Link
CH (1) CH220424A (en)

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