CH214804A - Process for the preparation of a polyazo dye. - Google Patents

Process for the preparation of a polyazo dye.

Info

Publication number
CH214804A
CH214804A CH214804DA CH214804A CH 214804 A CH214804 A CH 214804A CH 214804D A CH214804D A CH 214804DA CH 214804 A CH214804 A CH 214804A
Authority
CH
Switzerland
Prior art keywords
dye
amino
dark
gray
acid
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 CH214804A publication Critical patent/CH214804A/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
    • C09B35/36—Trisazo dyes of the type
    • C09B35/374—D 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

  

  <B>Zusatzpatent</B> 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 dianotierter     4-          Aminobenzoylamino    -4'-     oxy-1,

  1'-        azobenzol-        3'-          earbonsäure    mit     4-1VIethyl-2-amino-phenoxy-          essigsäure    erhältlich ist, dianotiert und mit     2-          Amino-5-oxynaphthalin-7-sulfonsäure    kuppelt.  



  Der neue     Farbstoff    stellt ein dunkles  Pulver dar, das sich in Wasser mit dunkel  blaugrauer Farbe löst und Baumwolle rot  stichig     grau    färbt; die mit     Kupfersalzen    nach  behandelte Färbung ist dunkel grauschwarz  und besitzt gute Nass- und Lichtechtheit.  



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

   wird bei 5    unter Rühren mit der Lösung aus 24 Ge  wichtsteilen     2-Amino-5-oxynaphthaEn-7-sul-          fonsäure    und 85 Gewichtsteilen     wasserfreiem          Natriumcarbonat    in 900 Teilen Wasser ver  einigt und das Ganze während der Kupplung       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     rotstichig    grau; die mit  Kupfersalzen nachbehandelte Färbung ist dun  kel grauschwarz und besitzt gute Nass- und  Lichtechtheit.



  <B> Additional patent </B> 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 dianotated 4-aminobenzoylamino -4'-oxy-1,

  1'-azobenzene-3'-carboxylic acid with 4-1VIethyl-2-aminophenoxy-acetic acid is available, dianotized and coupled with 2-amino-5-oxynaphthalene-7-sulfonic acid.



  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 dye after treated with copper salts is dark gray-black 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 of dia, doped 4-aminobenzoylamino-4'-oxy-1,1'-azobenzene-3'-carboxylic acid with 4-ethyl-2- Amino-phenoxyacetic acid is available, for the production of which 6.9 parts by weight of sodium nitrite are required,

   is combined with the solution of 24 parts by weight of 2-amino-5-oxynaphthaEn-7-sulphonic acid and 85 parts by weight of anhydrous sodium carbonate in 900 parts of water at 5 while stirring and the whole 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. It dyes cotton a reddish gray; the dye, after-treated with copper salts, is dark gray-black 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 dianotierter 4-Aminobenzoylamino-4'-oxy- 1,1'-azobenzol-3'-carbonsäure mit 4-11Iethyl-2- amino-phenoayessigsäure erhältlich ist, diazo- tiert und mit 2-Amino-5-oxynaphthalin-7-sul- fonsäure kuppelt. PATENT CLAIM: Process for the production of a polyazo dye, characterized in that the amino disazo dye, which is obtained by coupling dianotated 4-aminobenzoylamino-4'-oxy-1,1'-azobenzene-3'-carboxylic acid with 4-11-ethyl-2- Amino-phenoayacetic acid is available, diazotized and coupled with 2-amino-5-oxynaphthalene-7-sulphonic acid. Der neue Farbstoff stellt ein dunkles s Pulver dar, das sich in Wasser mit dunkel blaugrauer Farbe löst und Baumwolle rot- stichig grau färbt; die mit Kupfersalzen nach behandelte Färbung ist dunkel grauschwarz und besitzt gute Nass- und Lichtechtheit. The new dye is a dark powder that dissolves in water with a dark blue-gray color and dyes cotton with a reddish-gray cast; the dye after treated with copper salts is dark gray-black and has good wet and light fastness.
CH214804D 1938-03-11 1939-02-25 Process for the preparation of a polyazo dye. CH214804A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE214804X 1938-03-11
CH211661T 1939-02-25

Publications (1)

Publication Number Publication Date
CH214804A true CH214804A (en) 1941-05-15

Family

ID=25725086

Family Applications (1)

Application Number Title Priority Date Filing Date
CH214804D CH214804A (en) 1938-03-11 1939-02-25 Process for the preparation of a polyazo dye.

Country Status (1)

Country Link
CH (1) CH214804A (en)

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