CH170320A - Process for the preparation of a chromium-containing azo dye. - Google Patents

Process for the preparation of a chromium-containing azo dye.

Info

Publication number
CH170320A
CH170320A CH170320DA CH170320A CH 170320 A CH170320 A CH 170320A CH 170320D A CH170320D A CH 170320DA CH 170320 A CH170320 A CH 170320A
Authority
CH
Switzerland
Prior art keywords
azo dye
chromium
oxynaphthalene
diazotized
containing azo
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 CH170320A publication Critical patent/CH170320A/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
    • C09B45/00—Complex metal compounds of azo dyes
    • C09B45/02—Preparation from dyes containing in o-position a hydroxy group and in o'-position hydroxy, alkoxy, carboxyl, amino or keto groups
    • C09B45/14—Monoazo compounds
    • C09B45/16—Monoazo compounds containing chromium

Landscapes

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

Description

  

  <B>Zusatzpatent</B> zum Hauptpatent Nr. 166497.    Verfahren zur Herstellung eines chromhaltigen     Azofarbstoffes.       Es wurde gefunden, dass man einen     chrom-          haltigen        Azofarbstoff    durch Einwirkung der       chromhaltigen        Azofarbstoffe,

      die durch     Chro-          mieren    des     Azofarbstoffes    aus     diazotierter          1-Amino-2-oxyrraphthalin-4-sulforrsäure    und     1-          Oxynaphthalin    einerseits sowie des     Azofarb-          stoffes    aus     diazotierter        1-Amino-2-oxyrraphtha-          lin-4-sulfonsäure    und     2-Oxynaphthalin    ander  seits     entstehen,

      auf den     Monoazofarbstoff    aus       diazotierten        4-Chlor-2-amirro-l-oxybenzol    und       1.8-Dioxynaphthalin-3.6-disulforrsäure    erhal  ten kann, wenn diese Einwirkung in alkali  schem Medium erfolgt.  



  Der erhaltene chromhaltige     Azofarbstoff     stellt ein schwarzviolettes .Pulver dar. Es  färbt Wolle aus     organischsaurem    schwefel  saurem - Bade in marineblauen Tönen von  vorzüglichen     Echtheiten.     



       Beispiel:     Je 35 Teile der in alkalischem Medium  hergestellten Chromverbindung der     Azofarb-          stoffe    aus     diazotierter    1-Amino-2-oxynaphtha-         lin-4-sulfonsäure    und     1-Oxynaphtlralin    einer  seits sowie     2-Oxynaphthalin    anderseits, wer  den unter Zusatz von 100 Teilen 30     0%iger     Natronlauge in 600 Teilen Wasser gelöst.

    Dazu fügt man 26 Teile des     Azofarbstoffes     aus     diazotiertem        4-Chlor-2-amino-l-oxybenzol     und     1.8-Dioxynaphthalirr-3.6-disulfonsäure     und kocht     rückfliessend    4-5 Stunden. Dann  wird von geringen Mengen Verunreinigungen       abfiltriert,    das Filtrat mit stark verdünnter  Mineralsäure neutralisiert und die schwärzlich  blaue Lösung im Vakuum zur Trockne ver  dampft.  



  Zu demselben chromhaltigen     Azofarbstoff     gelangt man, wenn statt Natronlauge andere  Alkalien wie z. B. Kalilauge, Soda, Pottasche,  Borax,     Magnesiumoxyd,        Calciumhydroxyd,     Ammoniak oder     Trialkaliphosphat    verwendet  werden.



  <B> Additional patent </B> to main patent no. 166497. Process for the production of a chromium-containing azo dye. It has been found that a chromium-containing azo dye can be produced by the action of the chromium-containing azo dyes,

      that by chroming the azo dye from diazotized 1-amino-2-oxyrraphthalene-4-sulforric acid and 1-oxynaphthalene on the one hand and the azo dye from diazotized 1-amino-2-oxyrraphthalin-4-sulfonic acid and 2-oxynaphthalene on the other arise on the side,

      on the monoazo dye from diazotized 4-chloro-2-amirro-1-oxybenzene and 1.8-dioxynaphthalene-3.6-disulforrsäure can get th if this action takes place in an alkaline medium.



  The chromium-containing azo dye obtained is a black-violet powder. It dyes wool from organic-acid sulfur-acid bath in navy blue tones with excellent fastness properties.



       Example: 35 parts each of the chromium compound of the azo dyes produced in an alkaline medium from diazotized 1-amino-2-oxynaphthalene-4-sulfonic acid and 1-oxynaphthalene on the one hand and 2-oxynaphthalene on the other hand, with the addition of 100 parts 30 0% sodium hydroxide solution dissolved in 600 parts of water.

    26 parts of the azo dye from diazotized 4-chloro-2-amino-1-oxybenzene and 1,8-dioxynaphthalene-3,6-disulfonic acid are added and the mixture is refluxed for 4-5 hours. Small amounts of impurities are then filtered off, the filtrate is neutralized with highly dilute mineral acid and the blackish blue solution is evaporated to dryness in a vacuum.



  The same chromium-containing azo dye is obtained if, instead of sodium hydroxide, other alkalis such as. B. potassium hydroxide, soda, potash, borax, magnesium oxide, calcium hydroxide, ammonia or trialkali phosphate can be used.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines chrom- haltigen Azofarbstoffes durch Einwirkung der chromhaltigen Azofarbstoffe, die durch Chromieren des Azofarbstoffes aus diazotier- ter 1-Amino-2-oxynaphthalin-4-sulfonsäure und 1-Oxynaphthalin einerseits sowie des Azofarbstoffes aus diazotierter 1-Amino-2- oxynaphthalin-4-sulfonsäure und PATENT CLAIM: Process for the production of a chromium-containing azo dye by the action of the chromium-containing azo dyes, which are produced by chromating the azo dye from diazotized 1-amino-2-oxynaphthalene-4-sulfonic acid and 1-oxynaphthalene on the one hand and the azo dye from diazotized 1-amino 2-oxynaphthalene-4-sulfonic acid and 2-Oxynaph- thalin anderseits entstehen, auf den Azofarb- stoff aus diazotiertem 4-Chlor-2-amino-l-oxy- benzol und 1.8-Dioxynaphthaliii-3.6-disul- fonsäure, dadurch gekennzeichnet, dass diese Einwirkung in alkalischem Medium erfolgt. Der erhaltene chromhaltige Azofarbstoff stellt ein schwarzviolettes Pulver dar. Es färbt Wolle aus organischsaurem schwefel saurem Bade in marineblauen Tönen von vor züglichen Echtheiten. On the other hand, 2-oxynaphthalene is formed on the azo dye from diazotized 4-chloro-2-amino-1-oxybenzene and 1,8-dioxynaphthalene-3,6-disulfonic acid, characterized in that this action takes place in an alkaline medium. The chromium-containing azo dye obtained is a black-violet powder. It dyes wool from an organically acidic sulfuric acid bath in navy blue shades with excellent fastness properties.
CH170320D 1932-11-07 1932-11-07 Process for the preparation of a chromium-containing azo dye. CH170320A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH170320T 1932-11-07
CH166497T 1934-01-15

Publications (1)

Publication Number Publication Date
CH170320A true CH170320A (en) 1934-06-30

Family

ID=25718302

Family Applications (1)

Application Number Title Priority Date Filing Date
CH170320D CH170320A (en) 1932-11-07 1932-11-07 Process for the preparation of a chromium-containing azo dye.

Country Status (1)

Country Link
CH (1) CH170320A (en)

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