CH214803A - Process for the preparation of a polyazo dye. - Google Patents

Process for the preparation of a polyazo dye.

Info

Publication number
CH214803A
CH214803A CH214803DA CH214803A CH 214803 A CH214803 A CH 214803A CH 214803D A CH214803D A CH 214803DA CH 214803 A CH214803 A CH 214803A
Authority
CH
Switzerland
Prior art keywords
dye
preparation
acid
oxy
diazotized
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 CH214803A publication Critical patent/CH214803A/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B35/00Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
    • C09B35/36Trisazo dyes of the type
    • C09B35/374D contains two aryl nuclei linked by at least one of the groups —CON<, —SO2N<, —SO2—, or —SO2—O—

Landscapes

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

Description

  

      Zusatzpatent    zum Hauptpatent Nr. 211661.         Verfahren    zur Herstellung eines     Polyazofarbstoffes.       Gegenstand des vorliegenden Patentes ist  ein Verfahren zur Herstellung eines     Polyazo-          farbstoffes.    Das Verfahren ist dadurch ge  kennzeichnet, dass man den     Aminodisazofarb-          stoff,    der durch Kuppeln von     diazotierter        4-          Aminob        enzoylamin    o - 4'-     oxy-1,

  1'    -     azobenzol-3'-          carbonsäure    mit     4-1Vlethyl-2-amino-phenoxy-          essigsäure    erhältlich ist,     diazotiert    und mit       2-Phenylamino-5-oxynaphthalin-7-        sulfonsäure     kuppelt.  



  Der neue Farbstoff stellt ein dunkles Pul  ver dar, das sich in Wasser mit     dunkel    blau  grauer Farbe löst und Baumwolle rotstickig  grau färbt; die mit     Kupfersalzen    nachbehan  delte Färbung ist dunkelgrau und besitzt gute  Nass- und Lichtechtheit.  



  <I>Beispiel:</I>  Die     Anschlämmung    der     Diazoverbindung     des     Aminodisazofarbstoffes,    der durch Kup  peln von     diazotierter        4-Amino-benzoylamino-          4'-oxy-1,1'-azobenzol-3'-carbonsäure    mit 4-         1VIethyl-2-amino-phenoxyessigsäure        erhältlich     ist, zu deren Herstellung 6,9 Gewichtsteile       Natriumnitrit    erforderlich sind,

       wird    bei 5  unter Rühren mit der Lösung aus 32 Ge  wichtsteilen     2-Phenylamino-5-oxynaphthalin-          7-sulfonsäure        und    85 Gewichtsteilen wasser  freiem     Natriumcarbonat    in 900 Teilen Wasser  vereinigt und das Ganze während der Kupp  lung     sodaalkalisch    gehalten.  



  Der     in    üblicher Weise     isolierte        Farbstoff     stellt ein     dunkles    Pulver dar, das sich in  Wasser     mit    dunkel blaugrauer Farbe löst.  Er färbt Baumwolle rotstickig grau; die  mit     Kupfersalzen    nachbehandelte Färbung  ist dunkelgrau und besitzt gute Nass- und  Lichtechtheit.



      Additional patent to main patent No. 211661. Process for the production of a polyazo dye. The present patent relates to a process for the production of a polyazo dye. The process is characterized in that the aminodisazo dye, which is obtained by coupling diazotized 4-aminobenzoylamine o - 4'-oxy-1,

  1'-azobenzene-3'-carboxylic acid with 4-1Vlethyl-2-aminophenoxyacetic acid is available, diazotized and coupled with 2-phenylamino-5-oxynaphthalene-7-sulfonic acid.



  The new dye is a dark powder that dissolves in water with a dark blue-gray color and turns cotton into a red-embroidered gray; the dye, which has been aftertreated with copper salts, is dark gray and has good wet and light fastness.



  <I> Example: </I> The suspension of the diazo compound of the aminodisazo dye, which is produced by coupling diazotized 4-amino-benzoylamino-4'-oxy-1,1'-azobenzene-3'-carboxylic acid with 4- 1VIethyl-2 -amino-phenoxyacetic acid is available, for the production of which 6.9 parts by weight of sodium nitrite are required,

       is combined at 5 with the solution of 32 parts by weight of 2-phenylamino-5-oxynaphthalene-7-sulfonic acid and 85 parts by weight of anhydrous sodium carbonate in 900 parts of water and the whole thing is kept soda-alkaline during the coupling.



  The dye, isolated in the usual way, is a dark powder which dissolves in water with a dark blue-gray color. He dyes cotton with a red embroidery gray; the dye, after-treated with copper salts, is dark gray and has good wet and light fastness.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Polyazo- farbstoffes, dadurch gekennzeichnet, dass man den Aminodisazofarbstoff, der durch Kuppeln von diazotierter 4-Aminobenzoylamino-4'-oxy- 1,1'-azoberizol-3'-carbozisäure mit 4-1Tethyl-2- amino-phenoxyessigsäure erhältlich ist, diazo- tiert und mit 2-Phenylamino-5-oxy naplithalin- 7-sulfonsäure kuppelt. PATENT CLAIM: Process for the preparation of a polyazo dye, characterized in that the amino disazo dye obtained by coupling diazotized 4-aminobenzoylamino-4'-oxy-1,1'-azoberizole-3'-carbocic acid with 4-1-ethyl-2- Amino-phenoxyacetic acid is available, diazotized and coupled with 2-phenylamino-5-oxy naplithalin-7-sulfonic acid. Der neue Farbstoff stellt ein dunkles Pulver dar, das sich in Wasser mit dunkel blaugrauer F:irbe löst und Baumwolle rot stichig grau färbt; die mit Kupfersalzen nach behandelte Färbung ist duukelgi#au und be sitzt gute Nass- und Lichtechtheit. The new dye is a dark powder that dissolves in water with a dark blue-gray color and gives cotton a red, gray color; the dyeing treated with copper salts is duukelgi # au and has good wet and light fastness.
CH214803D 1938-03-11 1939-02-25 Process for the preparation of a polyazo dye. CH214803A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE214803X 1938-03-11
CH211661T 1939-02-25

Publications (1)

Publication Number Publication Date
CH214803A true CH214803A (en) 1941-05-15

Family

ID=25725085

Family Applications (1)

Application Number Title Priority Date Filing Date
CH214803D CH214803A (en) 1938-03-11 1939-02-25 Process for the preparation of a polyazo dye.

Country Status (1)

Country Link
CH (1) CH214803A (en)

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