CH217961A - Process for the preparation of a polyazo dye. - Google Patents

Process for the preparation of a polyazo dye.

Info

Publication number
CH217961A
CH217961A CH217961DA CH217961A CH 217961 A CH217961 A CH 217961A CH 217961D A CH217961D A CH 217961DA CH 217961 A CH217961 A CH 217961A
Authority
CH
Switzerland
Prior art keywords
preparation
dye
polyazo dye
sodium
amino
Prior art date
Application number
Other languages
German (de)
Inventor
Gesellschaft Fuer Chemis Basel
Original Assignee
Chem Ind Basel
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 Chem Ind Basel filed Critical Chem Ind Basel
Publication of CH217961A publication Critical patent/CH217961A/en

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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
    • C09B43/00—Preparation of azo dyes from other azo compounds
    • C09B43/12—Preparation of azo dyes from other azo compounds by acylation of amino groups
    • C09B43/136—Preparation of azo dyes from other azo compounds by acylation of amino groups with polyfunctional acylating agents
    • C09B43/16—Preparation of azo dyes from other azo compounds by acylation of amino groups with polyfunctional acylating agents linking amino-azo or cyanuric acid residues

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

Description

  

  <B>Zusatzpatent</B>     zum    Hauptpatent Nr. 215147.    Verfahren zur Herstellung eines     Polyazofarbstoffes.       Es wurde gefunden, dass man einen       neuen        Polyazofarbstoff    erhalten kann, wenn  man auf 1     M        o1        Cyanurchlorid    1 Mal des       Monoazofarbstoffes,    der erhalten wird durch  Vereinigen mit     1-Methyl-3-aminobenzol    des  reduzierten und hierauf     diazotierten    Konden  sationsproduktes,

   das selbst erhalten     wird     durch Einwirkenlassen von     4-Nitrobenzoyl-          chlorid    auf     Dehydrothiotoluidindisulfonsäure     und 2     Mol        4-Amino-4'-oxyazobenzol-3'-carbon-          säure,    einwirken     lässt.    Der neue     Polyazofarb-          stoff    färbt Baumwolle in schwach alkali  schem Bade     bei    Gegenwart von Kupfersulfat  und weinsaurem Natrium in waschechten,  grünstichig gelben Tönen an.  



       Beispiel:     63,7 Gewichtsteile des     Monoazofarbstoffes,     hergestellt aus dem reduzierten Kondensa  tionsprodukt von     Dehydrothiotoluldindisul-          fonsäure    und     p-Nitrobenzoylchlori.d    durch       Diazotieren    und Kuppeln mit     1-Methyl-3-          aminobenzol,    werden in neutraler, wässeriger    Lösung zu einer     Anschlämmung    von 18,4 Ge  wichtsteilen     Cyanurchlorid    in     kaltem    Wasser       gegeben.    Die dabei entstehende Salzsäure  wird     dureb,

      die     entsprechende    Menge     Natrium-          carbonat        neutralisiert.        Hernach    werden 27,8  Gewichtsteile     4-amino-4'-ogyazobenzol-3'-          carbonsaures    Natrium, das in Wasser gelöst  wurde, zugefügt und die Temperatur auf 40    erhöht. Nach 2 Stunden gibt man weitere  24 Teile     4-amino-4'-oxyazobenzol-3'-carbon-          saures    Natrium zu und hält die Temperatur  während der gleichen Zeit auf 80  . Das ter  tiäre Kondensationsprodukt ist nach dieser  Zeit gebildet. Es wird mittels     Natriumchlorid     abgeschieden und getrocknet.



  <B> Additional patent </B> to main patent No. 215147. Process for the production of a polyazo dye. It has been found that a new polyazo dye can be obtained if the monoazo dye obtained by combining with 1-methyl-3-aminobenzene the reduced and then diazotized condensation product is added to 1 M o1 of cyanuric chloride,

   which itself is obtained by allowing 4-nitrobenzoyl chloride to act on dehydrothiotoluidinedisulfonic acid and 2 mol of 4-amino-4'-oxyazobenzene-3'-carboxylic acid. The new polyazo dye dyes cotton in a weakly alkaline bath in the presence of copper sulfate and tartrate of sodium in washable, greenish yellow tones.



       Example: 63.7 parts by weight of the monoazo dye, produced from the reduced condensation product of dehydrothiotoluldindisulphonsäure and p-nitrobenzoylchlori.d by diazotization and coupling with 1-methyl-3-aminobenzene, are in a neutral, aqueous solution to a suspension of 18, 4 parts by weight of cyanuric chloride in cold water. The resulting hydrochloric acid is dureb,

      the corresponding amount of sodium carbonate is neutralized. Thereafter, 27.8 parts by weight of 4-amino-4'-ogyazobenzene-3'-carboxylic acid sodium, which has been dissolved in water, are added and the temperature is increased to 40%. After 2 hours, a further 24 parts of 4-amino-4'-oxyazobenzene-3'-carboxylic acid sodium are added and the temperature is maintained at 80 for the same time. The tertiary condensation product is formed after this time. It is precipitated using sodium chloride and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Polyazofarbstoffes, dadurch gekennzeichnet, dass man auf 1 Mol Cyanurchlorid 1 Mol des Monoazofarbstoffes, der erhalten wird durch Vereinigen mit 1-Methyl-3-,aminobenzol des reduzierten und hierauf diazotierten Konden- : PATENT CLAIM: Process for the preparation of a new polyazo dye, characterized in that 1 mol of the monoazo dye, which is obtained by combining with 1-methyl-3-, aminobenzene, of the reduced and then diazotized condensate is added to 1 mole of cyanuric chloride: #ationsprodüktes, das selbst erhalten wird durch Einwirkenlassen von 4-Nitrobenzoyl- chlorid auf Dehvdrothiotoluidindisulfonsäure und 211Iol 4-Amino-4'-oxyazobenzol-3'-carbon- i säure, einwirken lässt. Der neue Polyazofarb- stoff färbt Baumwolle in schwach alkali- schem Bade bei Gegenwart von Kupfersulfat und weinsaurem Natrium in waschechten, grünstichig gelben Tönen an. # ationsprodüktes, which is obtained by letting the action of 4-nitrobenzoyl chloride on Dehvdrothiotoluidindisulfonsäure and 211Iol 4-amino-4'-oxyazobenzene-3'-carboxylic acid, can act. The new polyazo dye dyes cotton in a weakly alkaline bath in the presence of copper sulphate and tartrate of sodium in washfast, greenish yellow tones.
CH217961D 1939-07-12 1939-07-12 Process for the preparation of a polyazo dye. CH217961A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH217961T 1939-07-12
CH215147T 1939-07-12

Publications (1)

Publication Number Publication Date
CH217961A true CH217961A (en) 1941-11-15

Family

ID=25725684

Family Applications (1)

Application Number Title Priority Date Filing Date
CH217961D CH217961A (en) 1939-07-12 1939-07-12 Process for the preparation of a polyazo dye.

Country Status (1)

Country Link
CH (1) CH217961A (en)

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