CH104917A - 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
CH104917A
CH104917A CH104917DA CH104917A CH 104917 A CH104917 A CH 104917A CH 104917D A CH104917D A CH 104917DA CH 104917 A CH104917 A CH 104917A
Authority
CH
Switzerland
Prior art keywords
chromium
containing dye
production
oxynaphthalene
dye
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 CH104917A publication Critical patent/CH104917A/en

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (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       Diazoverbindung    der     1-Amino-2-oxynaphta-          lin-4-sulfosäure    mit     1-Oxynaphtalin-8-sulf-          a.mid    hergestellt werden kann, mit Fluor  chrom in der Wärme behandelt.  



  Der so erhaltene chromhaltige 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-oxynaplitalin-4-sulfosäure    mit     1-Oxynaph-          talin-8-sulfamid,    werden in 500 Teilen Was  ser kochend gelöst, mit einer     Fluorchrom-          lösung    entsprechend 9,5 Teilen     Cr2O3    ver-    setzt und 24 Stunden im     Rückflusskühler    ge  kocht. Hierauf wird teilweise eingedampft;  beim Erkalten scheidet sieh 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 if the azo dye, which is prepared by coupling the diazo compound of 1-amino-2-oxynaphthalene-4-sulfonic acid with 1-oxynaphthalene-8-sulf-a.mid can be treated with fluorine chromium 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. 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-oxynaplitalin-4-sulfonic acid with 1-oxynaphthalene-8-sulfamide, are dissolved in 500 parts of boiling water with a fluorochrome solution accordingly 9.5 parts of Cr2O3 were added and the mixture was boiled in the reflux condenser for 24 hours. It is then partially evaporated; when it cools down, see the new one. Chromium compound in the form of shiny crystals.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines chrom- haltigen Farbstoffes, dadurch gekennzeichnet, dass der Azofarbstoff, welcher .durch Kuppeln der Diazoverbindung der 1-Amino-2-oxynaph- talin-4-sulfosäure mit 1-Oxynaphtalin-8-sulf- amid hergestellt werden kann, mit Fluor chrom in der Wärme behandelt wird. Claim: Process for the production of a chromium-containing dye, characterized in that the azo dye which is produced by coupling the diazo compound of 1-amino-2-oxynaphthalene-4-sulfonic acid with 1-oxynaphthalene-8-sulfamide can, is treated with fluorine chromium in the heat. Der so erhaltene chromhaltige Farbstoff bildet ein bronzierendes Pulver, .das sich in ZVasser und in konzentrierter Schwefelsäure mit blauer Farbe löst. Er färbt Wolle aus saurem Bade in sehr egalen blauen Tönen von hervorragenden Echtheitseigenschaften. The chromium-containing dye thus obtained forms a bronzing powder, which dissolves in water and concentrated sulfuric acid with a blue color. It dyes wool from an acid bath in very even blue tones with excellent fastness properties.
CH104917D 1922-11-18 1922-11-18 Process for the production of a chromium-containing dye. CH104917A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH101615T 1922-11-18
CH104917T 1922-11-18

Publications (1)

Publication Number Publication Date
CH104917A true CH104917A (en) 1924-05-16

Family

ID=25706027

Family Applications (1)

Application Number Title Priority Date Filing Date
CH104917D CH104917A (en) 1922-11-18 1922-11-18 Process for the production of a chromium-containing dye.

Country Status (1)

Country Link
CH (1) CH104917A (en)

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