CH104916A - Process for the production of a chromium-containing dye. - Google Patents

Process for the production of a chromium-containing dye.

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Publication number
CH104916A
CH104916A CH104916DA CH104916A CH 104916 A CH104916 A CH 104916A CH 104916D A CH104916D A CH 104916DA CH 104916 A CH104916 A CH 104916A
Authority
CH
Switzerland
Prior art keywords
chromium
containing dye
production
dye
acid
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 CH104916A publication Critical patent/CH104916A/en

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Description

  

  Verfahren zur Herstellung eines     ehromhaltigen    Farbstoffes.    Es wurde gefunden, dass ein neuer     chrom-          haltiger    Farbstoff erhalten wird, wenn man  den     Azofarbstoff,    welcher durch Kuppeln  der     Diazoverbindung    der     1-Amino-2-oxy-          naphta-Iin-4-sulfosäure    mit     1-Oxynaphta.Iin-8-          sulfamid    hergestellt werden kann, mit Chrom  acetat in der Wärme behandelt.  



  Der so erhaltene     ehromhaltige    Farbstoff  bildet ein bronzierendes Pulver, das sich in  Wasser und in konzentrierter Schwefelsäure  mit blauer Farbe löst. Er färbt -Wolle aus  saurem Bade in sehr egalen blauen Tönen  von hervorragenden Echtheitseigenschaften.

         Beispiel:     24,0 Teile des Farbstoffes, erhalten durch  Kuppeln der     Diazoverbindung    der     1-Amino-          2-oxynaphi;alin-4-sulfosäure    mit     1-Oxynaph-          talin-8-sulfainid,    werden in 500 Teilen Was  ser kochend gelöst, mit einer Chromacetat  lösung entsprechend 9,5 Teilen     Cr203    ver-    setzt und 24     Stunden    am     Rückflusskühler     gekocht. Hierauf wird teilweise     eingedampft;     beim Erkalten scheidet sich die neue Chrom  verbindung in Form glänzender Kristalle aus.



  Process for the preparation of a dye containing Ehrom. It has been found that a new chromium-containing dye is obtained if the azo dye, which is obtained by coupling the diazo compound of 1-amino-2-oxynaphtha-1in-4-sulfonic acid with 1-oxynaphtha-1in-8-sulfamide can be made with chromium acetate treated in heat.



  The thus obtained Ehrom-containing dye forms a bronzing powder which dissolves in water and in concentrated sulfuric acid with a blue color. It dyes wool from an acid bath in very even blue tones with excellent fastness properties.

         Example: 24.0 parts of the dye, obtained by coupling the diazo compound of 1-amino-2-oxynaphi; aline-4-sulfonic acid with 1-oxynaphthalene-8-sulfainide, are dissolved in 500 parts of boiling water with a Chromium acetate solution was added corresponding to 9.5 parts of Cr203 and boiled for 24 hours on the reflux condenser. It is then partially evaporated; When it cools down, the new chromium compound separates out in the form of shiny crystals.

Claims (1)

<B>PATE,</B> NTANSPRÜCH Verfahren zur Herstellung eines chrom- haltigen Farbstoffes, dadurch gekennzeichnet, dass der Azofarbstoff, welcher durch Kup peln .der Diazoverbindung .der 1-Amino-2- Oxynaphtalin-4-sulfosäure mit 1-Oxynaphta- lin-8-sulfamid hergestellt werden kann, mit Chromacetat in der Wärme behandelt wird. Der so erhaltene chromhaltige Farbstoff bildet ein bronzierendes Pulver, das sich in Wasser und in konzentrierter Schwefelsäure mit blauer Farbe löst. <B> PATE, </B> NTANSPRÜCH Process for the production of a chromium-containing dye, characterized in that the azo dye which is obtained by coupling the diazo compound of the 1-amino-2-oxynaphthalene-4-sulfonic acid with 1-oxynaphta - lin-8-sulfamide can be produced by being treated with chromium acetate in the heat. The chromium-containing dye obtained in this way forms a bronzing powder that dissolves in water and in concentrated sulfuric acid with a blue color. Er färbt Wolle aus saurem Bade in sehr egalen blauen Tönen von hervorragenden Echtheitseigenschaften. It dyes wool from an acid bath in very even blue tones with excellent fastness properties.
CH104916D 1922-11-18 1922-11-18 Process for the production of a chromium-containing dye. CH104916A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH104916T 1922-11-18
CH101615T 1922-11-18

Publications (1)

Publication Number Publication Date
CH104916A true CH104916A (en) 1924-05-16

Family

ID=25706026

Family Applications (1)

Application Number Title Priority Date Filing Date
CH104916D CH104916A (en) 1922-11-18 1922-11-18 Process for the production of a chromium-containing dye.

Country Status (1)

Country Link
CH (1) CH104916A (en)

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