CH249552A - Process for the preparation of a polyazo dye. - Google Patents

Process for the preparation of a polyazo dye.

Info

Publication number
CH249552A
CH249552A CH249552DA CH249552A CH 249552 A CH249552 A CH 249552A CH 249552D A CH249552D A CH 249552DA CH 249552 A CH249552 A CH 249552A
Authority
CH
Switzerland
Prior art keywords
amino
mol
dye
sulfonic acid
preparation
Prior art date
Application number
Other languages
German (de)
Inventor
Ag J R Geigy
Original Assignee
Ag J R Geigy
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 Ag J R Geigy filed Critical Ag J R Geigy
Publication of CH249552A publication Critical patent/CH249552A/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
    • C09B35/38—Trisazo dyes ot the type
    • C09B35/40—Trisazo dyes ot the type the component K being a dihydroxy or polyhydroxy compound

Landscapes

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

Description

  

      Zusatzpatent    zum Hauptpatent     Nr.    244602.    Verfahren zur Herstellung     eines        Polyazofarbatoffes.       Gegenstand vorliegenden Patentes ist ein  Verfahren zur     Herstellung    eines     Polyazo-          farbstoffes.    Das Verfahren ist dadurch ge  kennzeichnet, dass man 1     Mol        tetrazotierte     1-     (4'-Amino-benzoyllamino)

  -4-amino-benzol-          3-sulfonsäure    einerseits mit 1     Mol    des     Mono-          azofarbstoffes    aus     diazotiertem        2-Amino-l-          oxy-benzol-4-sulfonsäureamid    und     Resorcin     und anderseits mit 1     Mol        3-Methyl-5-pyr-          a,zolon    kuppelt.

   Der entstandene neue     Tris-          a,zofarbstoff    stellt ein dunkles Pulver dar,  löst sich in Wasser und in konzentrierter  Schwefelsäure mit brauner Farbe und färbt  Fasern aus natürlicher oder     regenerierter          Cellulose    in gelbbraunen Tönen, welche nach  Behandlung mit Kupfersulfat sehr gute       Echtheiten    aufweisen.

      <I>Beispiel:</I>    Eine Suspension der     Tetrazoverbindung     aus 30,7 Teilen     1-(4'-Amino-benzoylamino)-          4-amino-benzol-3-sulfonsäure    wird in der  Kälte mit 20 Teilen     Natriumacetat        und    einer       .schwach    alkalischen Lösung von 30,9 Teilen  des     Monoazofarbstoffes    2 -     Amino    -1-     oxy-          benzol-4-sulfonsäureamid        ->        Resorcin    ver-    setzt. Nach mehreren Stunden ist die Zwi  schenverbindung gebildet.

   Man versetzt mit  einer neutralen Lösung von 9,8 Teilen       3-Methyl-5-pyrazolon    und tropft langsam 10  Teile     Natriumbiearbonat    in 200 Teilen  Wasser zu. Am andern Tag ist die Kupp  lung beendet. Man scheidet den neuen     Tris-          azofarbstoff    mit Kochsalz vollständig aus,  filtriert und trocknet ihn.



      Additional patent to main patent No. 244602. Process for the production of a polyazo-carbate. The present patent relates to a process for the production of a polyazo dye. The process is characterized in that 1 mol of tetrazotized 1- (4'-amino-benzoyllamino)

  -4-amino-benzene-3-sulfonic acid on the one hand with 1 mol of the monoazo dye from diazotized 2-amino-l-oxy-benzene-4-sulfonic acid amide and resorcinol and on the other hand with 1 mol of 3-methyl-5-pyr-a, zolon couples.

   The resulting new tris a, zo dye is a dark powder, dissolves in water and in concentrated sulfuric acid with a brown color and dyes fibers made of natural or regenerated cellulose in yellow-brown shades, which show very good fastness properties after treatment with copper sulfate.

      <I> Example: </I> A suspension of the tetrazo compound from 30.7 parts of 1- (4'-amino-benzoylamino) -4-aminobenzene-3-sulfonic acid becomes weak in the cold with 20 parts of sodium acetate and one alkaline solution of 30.9 parts of the monoazo dye 2 - amino -1-oxybenzene-4-sulfonic acid amide -> resorcinol. After several hours, the interconnection is formed.

   A neutral solution of 9.8 parts of 3-methyl-5-pyrazolone is added, and 10 parts of sodium carbonate in 200 parts of water are slowly added dropwise. The next day the coupling is over. The new trisazo dye is separated out completely with common salt, filtered and dried.

Claims (1)

PATENTANSPRTICH Verfahren zur Herstellung eines Poly- azofarbstoffes, dadurch gekennzeichnet, dass man 1 Mol tetrazotierte 1-(4'-Amino-benzoyl- amino)-4-amino-benzol-3-sulfonsäure einer seits mit 1 Mol des Monoazofarbstoffes aus, PATENT CLAIM Process for the production of a poly azo dye, characterized in that 1 mol of tetrazotized 1- (4'-amino-benzoyl-amino) -4-aminobenzene-3-sulfonic acid is mixed with 1 mol of the monoazo dye, diazotiertem 2-Amino-l-oxy-benzol-4-sulfon- säureamid und Resorcin und anderseits mit 1 Mol 3-Methyl-5-pyrazolon kuppelt. Der entstandene neue Trisazofarbstoff stellt ein dunkles Pulver dar, löst sich in Wasser und in konzentrierter Schwefelsäure mit brauner Farbe und färbt Fasern aus natürlicher oder regenerierter Cellulose in gelbbraunen Tönen, welche nach Behandlung mit Kupfersulfat sehr gute Echtheiten aufweisen. diazotized 2-amino-1-oxy-benzene-4-sulfonic acid amide and resorcinol and on the other hand with 1 mol of 3-methyl-5-pyrazolone. The resulting new trisazo dye is a dark powder, dissolves in water and in concentrated sulfuric acid with a brown color and dyes fibers made of natural or regenerated cellulose in yellow-brown shades, which have very good fastness properties after treatment with copper sulfate.
CH249552D 1945-05-16 1945-05-16 Process for the preparation of a polyazo dye. CH249552A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH244602T 1945-05-16
CH249552T 1945-05-16

Publications (1)

Publication Number Publication Date
CH249552A true CH249552A (en) 1947-06-30

Family

ID=25728958

Family Applications (1)

Application Number Title Priority Date Filing Date
CH249552D CH249552A (en) 1945-05-16 1945-05-16 Process for the preparation of a polyazo dye.

Country Status (1)

Country Link
CH (1) CH249552A (en)

Similar Documents

Publication Publication Date Title
CH242507A (en) Process for the preparation of a copper-compatible polyazo dye.
CH249552A (en) Process for the preparation of a polyazo dye.
DE728886C (en) Process for the preparation of copper complex compounds of substantive azo dyes
DE695403C (en) Process for the preparation of polyazo dyes
CH251797A (en) Process for the preparation of a polyazo dye.
CH249555A (en) Process for the preparation of a polyazo dye.
CH249550A (en) Process for the preparation of a polyazo dye.
CH249553A (en) Process for the preparation of a polyazo dye.
CH144489A (en) Process for the preparation of a disazo dye.
CH148005A (en) Process for the preparation of a disazo dye.
CH265724A (en) Process for the preparation of a copper-compatible polyazo dye.
CH248695A (en) Process for the production of a metallizable polyazo dye.
CH265728A (en) Process for the preparation of a copper-compatible polyazo dye.
CH265722A (en) Process for the preparation of a copper-compatible polyazo dye.
CH265727A (en) Process for the preparation of a copper-compatible polyazo dye.
CH146766A (en) Process for the production of a new azo dye.
CH262169A (en) Process for the preparation of a brown polyazo dye.
CH144487A (en) Process for the preparation of a disazo dye.
CH252291A (en) Process for the preparation of a polyazo dye.
CH265729A (en) Process for the preparation of a copper-compatible polyazo dye.
CH252289A (en) Process for the preparation of a polyazo dye.
CH248696A (en) Process for the production of a metallizable polyazo dye.
CH144483A (en) Process for the preparation of a disazo dye.
CH252287A (en) Process for the preparation of a polyazo dye.
CH248693A (en) Process for the production of a metallizable polyazo dye.