CH228373A - Process for the preparation of a substantive copper-containing disazo dye. - Google Patents

Process for the preparation of a substantive copper-containing disazo dye.

Info

Publication number
CH228373A
CH228373A CH228373DA CH228373A CH 228373 A CH228373 A CH 228373A CH 228373D A CH228373D A CH 228373DA CH 228373 A CH228373 A CH 228373A
Authority
CH
Switzerland
Prior art keywords
copper
dye
preparation
disazo dye
substantive
Prior art date
Application number
Other languages
German (de)
Inventor
J R Geigy A G
Original Assignee
Geigy Ag J R
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 Geigy Ag J R filed Critical Geigy Ag J R
Publication of CH228373A publication Critical patent/CH228373A/en

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

Description

  

  Verfahren zur Darstellung eines     substantiven    kupferhaltigen     Disazofarbstoifes.            Gegenstand    des vorliegenden Zusatz  patentes ist ein Verfahren zur Darstellung  eines Substantiven kupferhaltigen     Disazofarb-          stoffes,    dadurch gekennzeichnet, dass man je  1     Mol        diazotierter        2-Aminobenzoesäure    und  0- Chlor. 2 -     amno-1-.oxybenzol    -4-     sulf        o:

  nsäure     mit einem     Mol        eines        Kondensationsproduktes     aus 2     Mol        2-Amino-5-oxynaphthalin-7-sulfon-          säure,    1     Mal        Anilin    und 1 Mal     Cyanur-          chlorid    kuppelt und den erhaltenen     Disazo-          farbstoff    mit kupferabgebenden Mitteln be  handelt.  



  <I>Beispiel:</I>  137 Teile     2-Aminobenzoesäure    werden in       üblicher    Weise     diazotiert    und zu einer Lö  sung von 646     Teilern    des, tertiären     Kondensa-          tionspro,duktes    aus 2     Mol        2-Amino-5-ogy-          naphthalin-7-sulfonsäure,    1 Mal Anilin und  1     Mol        Cyanurchl.orid    in 7000 Teilen     Wasser     und 200 Teilen Soda gegeben.

   Nach been  digter Kupplung wird der Farbstoff mit  Kochsalz ausgefällt, filtriert und mit 10 000  Teilen Wasser und 200 Teilen Soda wieder         angesehlämmt.    Es werden nun bei 5   223,5     Teile,diazotierte        6-Chlo,r-2-amino-l-.oxy-          benzol-4-sulfonsäure    zufliessen gelassen und  nach beendigter Kupplung der     Disazofarb-          stoff    mit Kochsalz ausgefällt und filtriert.  



  Der     feuchte    Filterkuchen wird in 20 000  Teilen Wasser bei 80  gelöst und mit     einer-          Lösung    von 500 Teilen     krist.    Kupfersulfat in  2000 Teilen Wasser und 1000 Teilen  25     %igem    Ammoniak versetzt. Es wird 3-4  Stunden bei 80-90  gerührt, mit Kochsalz  ausgefällt     und        filtriert.     



  Der Farbstoff stellt ein schwärzlich       violettes    Pulver dar, das sich     in        Wasser    mit  roter Farbe löst und     Zellul.osefasern    in sehr  lichtechten     blaustichigen    Rottönen färbt.  



  Die     Kupferung    kann auch nach dem im  Hauptpatent     erwähnten    Verfahren vorgenom  men werden, ebenso ist eine     Isolierung    des  Mono- und des     Disazofarbstoffes    nicht unbe  dingt erforderlich, hat aber den     Vorteil,    dass  dadurch etwas reinere Produkte erhalten  werden.



  Method for the production of a substantive copper-containing disazo dye. The subject of the present additional patent is a method for the representation of a noun copper-containing disazo dye, characterized in that one mole of diazotized 2-aminobenzoic acid and 0-chlorine. 2 - amno-1-.oxybenzene -4- sulfo:

  acid is coupled with one mole of a condensation product of 2 moles of 2-amino-5-oxynaphthalene-7-sulfonic acid, once aniline and once cyanuric chloride and the disazo dye obtained is treated with copper-donating agents.



  <I> Example: </I> 137 parts of 2-aminobenzoic acid are diazotized in the usual way and converted into a solution of 646 parts of the tertiary condensation product from 2 moles of 2-amino-5-ogynaphthalene-7- sulfonic acid, 1 time aniline and 1 mol cyanuric chloride in 7000 parts of water and 200 parts of soda.

   After coupling is complete, the dye is precipitated with sodium chloride, filtered and washed up again with 10,000 parts of water and 200 parts of soda. Diazotized 6-chloro, r-2-amino-1-oxybenzene-4-sulfonic acid are now allowed to flow in at 5,223.5 parts and, after the coupling is complete, the disazo dye is precipitated with sodium chloride and filtered.



  The moist filter cake is dissolved in 20,000 parts of water at 80 and a solution of 500 parts of crystalline. Copper sulfate in 2000 parts of water and 1000 parts of 25% ammonia are added. It is stirred for 3-4 hours at 80-90, precipitated with common salt and filtered.



  The dye is a blackish violet powder that dissolves in water with a red color and dyes cellulose fibers in very lightfast bluish red tones.



  The copper plating can also be carried out according to the process mentioned in the main patent, and isolation of the mono and disazo dyes is not absolutely necessary, but has the advantage that somewhat purer products are obtained.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines substan- tiven kupferhaltigen Diaazofarbstoffes, da durch gekennzeichnet, dass man je 1 Mol dia- zotierter 2-Aminobenzoesäure und 6-Chlor- 2.-amino-l-oxybenzol-4-sulfonsäure mit einem Afol eines aus 2 Mol 2-Amino-5-oxynaphthalin-7-sulfonsäure, PATENT CLAIM: Process for the preparation of a substantial copper-containing diaazo dye, characterized in that 1 mol of diazotized 2-aminobenzoic acid and 6-chloro-2.-amino-1-oxybenzene-4-sulfonic acid with an Afol one of 2 Moles of 2-amino-5-oxynaphthalene-7-sulfonic acid, 1 Mol Anilin und 1 Hol Cyanurchlorid kuppelt und den erhaltenen Disazofarbstoff mit kupferabgebenden Mitteln behandelt. Der ge trocknete Farbstoff stellt ein schwärzlich violettes Pulver dar, er löst sich in 'Wasser mit roter Farbe und färbt Zellulosefasern in sehr lichtechten blaustichigen Rottönen. 1 mol of aniline and 1 pint of cyanuric chloride are coupled and the disazo dye obtained is treated with copper-donating agents. The dried dye is a blackish violet powder, it dissolves in water with a red color and dyes cellulose fibers in very lightfast, bluish red tones.
CH228373D 1941-09-19 1941-09-19 Process for the preparation of a substantive copper-containing disazo dye. CH228373A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH228373T 1941-09-19
CH223777T 1941-09-19

Publications (1)

Publication Number Publication Date
CH228373A true CH228373A (en) 1943-08-15

Family

ID=25726747

Family Applications (1)

Application Number Title Priority Date Filing Date
CH228373D CH228373A (en) 1941-09-19 1941-09-19 Process for the preparation of a substantive copper-containing disazo dye.

Country Status (1)

Country Link
CH (1) CH228373A (en)

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