CH220426A - Process for the preparation of a tetrakisazo dye. - Google Patents

Process for the preparation of a tetrakisazo dye.

Info

Publication number
CH220426A
CH220426A CH220426DA CH220426A CH 220426 A CH220426 A CH 220426A CH 220426D A CH220426D A CH 220426DA CH 220426 A CH220426 A CH 220426A
Authority
CH
Switzerland
Prior art keywords
preparation
dye
tetrakisazo dye
acid
aoetoacetylamino
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 CH220426A publication Critical patent/CH220426A/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)

Description

  

  <B>Zusatzpatent</B> zum Hauptpatent Nr. 217243.    Verfahren zur Herstellung eines     Tetrakisazofarbstoffes.       Gegenstand des vorliegenden Zusatzpaten  tes     ist    ein Verfahren zur Herstellung eines       Tetrakisazofarbs.toffes,    dadurch gekennzeich  net, dass man die     Tetrazoverbindung    aus       4.4'-Diaminostilben-2.        2'-:disulfonsäure    mit       4-Aoetoacetylamino-2'.        3--dimethyl-1.        1'-azo-          benzol-4'-sulfons,äure    kuppelt.

   Der erhaltene  Farbstoff färbt Baumwolle und Fasern aus       regenerierter        Cellulose    in orangen Tönen von  sehr     guter    Wasser- und Waschechtheit     ,sowie     sehr guter Lichtechtheit.  



  <I>Beispiel:</I>  370 Gewichtsteile     4.4'-Diaminostilben-          2    .     2'=disulfonsäure    werden wie üblich     tetrazo-          tiert    und mit 790 Gewichtsteilen des Na  triumsalzes der     4-Aoetoacetylamino-2'.        3-,di-          methyl-1    .     1'-azobenzol-4'-sulfonsäure    in     soda-          alkalisoher    Lösung gekuppelt.

   Der erhaltene    Farbstoff färbt Baumwolle und Fasern aus       regenerierter        Cellulose    in orangen Tönen von  sehr .guter Wasser- und Waschechtheit sowie  guter     Lichtechtheit.  



  <B> Additional patent </B> to main patent no. 217243. Process for the production of a tetrakisazo dye. The subject of the present additional patent is a process for the production of a Tetrakisazofarbs.toffes, characterized in that the tetrazo compound from 4,4'-diaminostilbene-2. 2 '-: disulfonic acid with 4-aoetoacetylamino-2'. 3 - dimethyl-1. 1'-azo-benzene-4'-sulfone, acid couples.

   The dye obtained dyes cotton and fibers from regenerated cellulose in orange shades of very good water and wash fastness, as well as very good light fastness.



  <I> Example: </I> 370 parts by weight of 4.4'-diaminostilbene-2. 2 '= disulfonic acid are tetrazo- tated as usual and with 790 parts by weight of the sodium salt of 4-aoetoacetylamino-2'. 3-, dimethyl-1. 1'-azobenzene-4'-sulfonic acid coupled in a soda-alkali solution.

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

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Tetra- kisazofarbatoffes, dadurch gekennzeichnet, dass man die Tetrazoverbindung aus 4. 4'-Di- aminostilben-2. 2'-disulfonsäure mit 4-Aoeto- acetylamino-2'. 3-@dimethyl-1 . 1'-azobenzol- 4'-Gulfonsäure kuppelt. PATENT CLAIM: Process for the production of a tetra- kisazofarbatoffes, characterized in that the tetrazo compound is obtained from 4. 4'-diaminostilbene-2. 2'-disulfonic acid with 4-aoetoacetylamino-2 '. 3- @ dimethyl-1. 1'-azobenzene-4'-gulfonic acid couples. Der erhaltene Farb stoff färbt Baumwolle und Fasern aus rege nerierter Cellulose in orangen Tönen von sehr guter Wasser- und Waschechtheit sowie sehr guter Lichtechtheit. The dye obtained dyes cotton and fibers from regenerated cellulose in orange shades of very good water and wash fastness and very good light fastness.
CH220426D 1939-12-09 1940-10-07 Process for the preparation of a tetrakisazo dye. CH220426A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE220426X 1939-12-09
CH217243T 1940-10-07

Publications (1)

Publication Number Publication Date
CH220426A true CH220426A (en) 1942-03-31

Family

ID=25726002

Family Applications (1)

Application Number Title Priority Date Filing Date
CH220426D CH220426A (en) 1939-12-09 1940-10-07 Process for the preparation of a tetrakisazo dye.

Country Status (1)

Country Link
CH (1) CH220426A (en)

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