CH104919A - 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
CH104919A
CH104919A CH104919DA CH104919A CH 104919 A CH104919 A CH 104919A CH 104919D A CH104919D A CH 104919DA CH 104919 A CH104919 A CH 104919A
Authority
CH
Switzerland
Prior art keywords
chromium
containing dye
oxynaphthalene
production
blue
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 CH104919A publication Critical patent/CH104919A/en

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  • Coloring (AREA)

Description

  

  Verfahren zur Herstellung eines chromhaltigen     Farbstoffes.       Es wurde gefunden, dass ein neuer     chrom-          haltiger    Farbstoff erhalten wird, wenn man  den     Azofarbstoff,    welcher durch Kuppeln der       chlorierten        Diazoverbindung    der     1-Amino-2-          oxynaphtalin-4-sulfosäure    mit     1-Oxynaphta-          lin-8-sulfamid    hergestellt werden kann, mit       Chromformiat    in der Wärme behandelt.  



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



  <I>Beispiel:</I>  25,3 Teile des Farbstoffes, erhalten durch  Kuppeln der chlorierten     Diazoverbindung    der       1-Amino-2-oxynaphtalin-4-sulfosäure    mit     1-          Oxynaphtalin-8-sulfamid,    werden in 500 Tei  len Wasser kochend gelöst, mit einer     Chroau-          formiatlösung    entsprechend 9,5 Teilen     Crz03       versetzt 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 production of a chromium-containing dye. It has been found that a new chromium-containing dye is obtained when the azo dye, which can be prepared by coupling the chlorinated diazo compound of 1-amino-2-oxynaphthalene-4-sulfonic acid with 1-oxynaphthalene-8-sulfamide , treated with chromium formate in the heat.



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



  <I> Example: </I> 25.3 parts of the dye, obtained by coupling the chlorinated diazo compound of 1-amino-2-oxynaphthalene-4-sulfonic acid with 1-oxynaphthalene-8-sulfamide, are boiling in 500 parts of water dissolved, mixed with a chromium formate solution corresponding to 9.5 parts of Crz03 and refluxed for 24 hours. It is then partially evaporated; When it cools down, the new chromium compound separates out in the form of shiny crystals.

Claims (1)

PATENTANSPRUC1-1: Verfahren zur Herstellung eines chrom- haltigen Farbstoffes, dadurch gekennzeichnet, dass der Azofarbstoff, welcher durch Kuppeln der chlorierten Dia.zoverbindung der 1-Amino- 2-oxynaphtalin-4-sulfosäure mit 1-Oxynaph- talin-8-sulfamid hergestellt werden kann, mit Chromformiat in der Wärme behandelt wird. PATENT CLAIM1-1: Process for the production of a chromium-containing dye, characterized in that the azo dye, which is obtained by coupling the chlorinated dia.zo compound of 1-amino-2-oxynaphthalene-4-sulfonic acid with 1-oxynaphthalene-8-sulfamide can be produced, is treated with chromium formate in the heat. Der so erhaltene chromhaltige Farbstoff bildet ein bronzierendes Pulver, das sich in Wasser mit blauer und in konzentrierter Schwefelsäure mit blaugrüner Farbe löst. Er färbt Wolle aus saurem Bade in sehr egalen grünstilchig blauen Tönen von hervorragen den Echtheitseigenschaften. The chromium-containing dye obtained in this way forms a bronzing powder which dissolves in water with a blue color and in concentrated sulfuric acid with a blue-green color. It dyes wool from an acid bath in very even, green-milky blue tones with excellent fastness properties.
CH104919D 1922-11-18 1922-11-18 Process for the production of a chromium-containing dye. CH104919A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH104919T 1922-11-18
CH101615T 1922-11-18

Publications (1)

Publication Number Publication Date
CH104919A true CH104919A (en) 1924-05-16

Family

ID=25706029

Family Applications (1)

Application Number Title Priority Date Filing Date
CH104919D CH104919A (en) 1922-11-18 1922-11-18 Process for the production of a chromium-containing dye.

Country Status (1)

Country Link
CH (1) CH104919A (en)

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