CH228371A - 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
CH228371A
CH228371A CH228371DA CH228371A CH 228371 A CH228371 A CH 228371A CH 228371D A CH228371D A CH 228371DA CH 228371 A CH228371 A CH 228371A
Authority
CH
Switzerland
Prior art keywords
copper
disazo dye
preparation
amino
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 CH228371A publication Critical patent/CH228371A/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
    • 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

Description

  

  <B>Zusatzpatent</B> zum     Hauptpatent    Nr. 223777.    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     6 - Chlor- 2     -amino-1-o@xybenzol-4-tsulfonsäure     mit einem     Mo:l    eines Kondensationsproduktes  aus 2     Mol        2-Amino-5-oxynaphthalin-7-sulfo:

  n-          s:äure    und 1     Mol        Cyanurchlurid    kuppelt und  den erhaltenen     Disazofarbstoff    mit kupfer  abgebenden Mitteln     bichandelt.     



       Beispiel:     137 Teile 2-     Aminobenzoesäure    werden     in     üblicher Weise     diazotiert    und zu einer Lö  sung von 589,5 Teilen des sekundären Kon  densationsproduktes aus 2     Mol        2-Amino-5-          oxynaphthaIin-7-sulfonsäure    und 1     Mol          Cyanurchlorid    in 7000 Teilen Wasser und  200 Teilen Soda gegeben. Nach     beendigter          Kupplung        wird    der Farbstoff mit Kochsalz  ausgefällt, filtriert und mit 10 000 Teilen  Wasser und 200 Teilen Soda wieder ange:-    schlämmt.

   Es werden nun bei 5  223,5 Teile       diazotierte        6-Chlor-2-amino-l-oxyben7,ol-4-          sulfo:nsäure    zufliessen gelassen und nach be  endigter Kupplung :der     Disazofarbstoff    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/"ö        igem    Ammoniak versetzt. Es     wird    3-4  Stunden bei 80-90  gerührt, mit Kochsalz  ausgefällt und     filtriert.     



  Der Farbstoff stellt ein     schwärzli@ch-          violettes    Pulver dar, das sich in     Wasser    mit       roter    Färbe löst     und        Zellulo:sefasern    in :sehr  lichtechten blaustichigen Rottönen färbt.  



  Die     Kupferung    kann auch nach dem im       Hauptpatent    erwähnten Verfahren     vo:rg.e-          nommen    werden, ebenso     ist    eine     Isolierung     des Mono- und des     Disazofarbstoffes    nicht       unbedingt    erforderlich, hat aber :den     Vorteil,     dass dadurch etwas reinere Produkte erhalten  werden.



  <B> Additional patent </B> to the main patent no. 223777. The subject of the present additional patent is a process for the preparation of a substantive copper-containing disazo dye, characterized in that 1 mol of diazotized 2-aminobenzoic acid and 6-chloro-2 -amino-1-o @ xybenzene-4-tsulfonic acid with a Mo: l of a condensation product of 2 moles of 2-amino-5-oxynaphthalene-7-sulfo:

  n-s: acid and 1 mole of cyanuric acid coupling and the disazo dye obtained with copper-releasing agents.



       Example: 137 parts of 2-aminobenzoic acid are diazotized in the usual way and to a solution of 589.5 parts of the secondary condensation product of 2 moles of 2-amino-5-oxynaphthaIin-7-sulfonic acid and 1 mole of cyanuric chloride in 7000 parts of water and 200 Share soda given. After the coupling is complete, the dye is precipitated with sodium chloride, filtered and slurried again with 10,000 parts of water and 200 parts of soda.

   There are now at 5223.5 parts of diazotized 6-chloro-2-amino-1-oxyben7, ol-4-sulfonic acid allowed to flow in and, after 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 with a solution of 500 parts of crystalline. Copper sulfate in 2000 parts of water and 1000 parts of 25% ammonia are added. The mixture is stirred for 3-4 hours at 80-90, precipitated with sodium chloride and filtered.



  The dye is a blackish-violet powder that dissolves in water with a red color and colors cellulose fibers in very lightfast blue-tinged 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 Disazofarbstoffes, da durch gekenuzeiehnef; PATENT CLAIM: Process for the preparation of a substantial copper-containing disazo dye, since by gekenuzeiehnef; daB man je 1 Mol di anotierter 2-Aminobenzoesäure und 6-Chlor- 2-amino-l-oxybenzol-4-sulfonsäure mit einem Mol eines Kondensationsproduktes aus 2 Mol 2-Amino-5-oxynaphthalin-7-sulfonsäure und 1 Hol Cyanurchlorid kuppelt und den erhal tenen Disazofarb toff mit kupferabgebenden Mitteln behandelt. that 1 mole of di-anotated 2-aminobenzoic acid and 6-chloro-2-amino-1-oxybenzene-4-sulfonic acid are coupled with one mole of a condensation product of 2 moles of 2-amino-5-oxynaphthalene-7-sulfonic acid and 1 part of cyanuric chloride and treated the disazo dye obtained with copper-releasing agents. Der getrocknete Farbstoff stellt ein schwä,rzliehviolettes Pulver dar; .er löst sieh in Wasser mit roter Farbe und färbt Zellulosefasern in sehr lichteehten blaustiehi- gen Rottönen. The dried dye is a blackish-violet powder; It dissolves in water with a red color and dyes cellulose fibers in very light blue-tinged red tones.
CH228371D 1941-09-19 1941-09-19 Process for the preparation of a substantive copper-containing disazo dye. CH228371A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH223777T 1941-09-19
CH228371T 1941-09-19

Publications (1)

Publication Number Publication Date
CH228371A true CH228371A (en) 1943-08-15

Family

ID=25726745

Family Applications (1)

Application Number Title Priority Date Filing Date
CH228371D CH228371A (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) CH228371A (en)

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