CH115469A - Process for the production of a chromium-containing dye. - Google Patents

Process for the production of a chromium-containing dye.

Info

Publication number
CH115469A
CH115469A CH115469DA CH115469A CH 115469 A CH115469 A CH 115469A CH 115469D A CH115469D A CH 115469DA CH 115469 A CH115469 A CH 115469A
Authority
CH
Switzerland
Prior art keywords
dye
chromium
production
oxynaphthalene
containing 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 CH115469A publication Critical patent/CH115469A/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. 101615.         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-oxynapli-          tltalin-4-sulfosäure    mit 1-     Oxynaphthalin-    5     -          sulfamid    hergestellt werden kann, mit     Alkali-          chromit    behandelt.

   Der so erhaltene Farb  stoff bildet ein dunkles Pulver, das sich in  Nasser mit     dunkelbauer    Farbe löst. Er färbt  Wolle aus saurem Bade in sehr egalen blauen  Tönen von hervorragenden Echtheitseigen  schaften.    <I>Beispiel</I>    In 54 Teile einer<B>16,2</B> %     Crd03    enthal  tenden     Chramoxydhydratpaste    werden nach  und nach 60 Teile festes     Ätzkali    eingetragen,  bis sämtliches     Crz03    in Lösung gegangen ist.

    Hierauf fügt man 45,7 Teile des Farbstoffes  aus dianotierter 1-     Amino-2-oxynaphthalin-          4-sulfosäure    und     1-Oxynaphthalin-5-sulfamid     hinzu und erhitzt die Masse so     lange        auf       <B>80',</B> bis sämtliches Chrom vom Farbstoff  aufgenommen ist. Dann verdünnt man das  Reaktionsgemisch mit Wasser, stellt mit Mi  neralsäure neutral und salzt den erhaltenen  Farbstoff mit     Kochsalz    aus.



  <B> Additional patent </B> to main patent no. 101615. 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 can be prepared by coupling the diazo compound of 1-amino-2-oxynapli-tltalin-4-sulfonic acid with 1-oxynaphthalene-5-sulfamide, treated with alkali chromite.

   The dye obtained in this way forms a dark powder that dissolves in water with a dark, pale color. It dyes wool from an acid bath in very even blue tones with excellent fastness properties. <I> Example </I> In 54 parts of a chromium oxide hydrate paste containing <B> 16.2 </B>% Crd03, 60 parts of solid caustic potash are gradually added until all the Crz03 has dissolved.

    45.7 parts of the dye from dianotated 1-amino-2-oxynaphthalene-4-sulfonic acid and 1-oxynaphthalene-5-sulfamide are then added and the mixture is heated to 80 'until it is all Chromium is absorbed by the dye. The reaction mixture is then diluted with water, neutralized with mineral acid and the dye obtained is salted out with sodium chloride.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen chromhaltigen Farbstoffes, dadurch gekenn zeichnet, dass man den Azofarbstoff, welcher durch Kuppeln der Diazoverbindung der 1- Amino-2-oxynaphthalin-4-sulfosäure mit 1- Oxynaphthalin-5-sulfamid hergestellt werden kann, mit Alkalichromit behandelt. Der so er haltene Farbstoff bildet ein dunkles Pulver, das sich in Wasser mit dunkelblauer Farbe löst. Er färbt Wolle aus saurem Bade in sehr egalen blauen Tönen von hervorragenden Echtheitseigenschaften. PATENT CLAIM: Process for the production of a new chromium-containing dye, characterized in that the azo dye, which can be produced by coupling the diazo compound of 1- amino-2-oxynaphthalene-4-sulfonic acid with 1-oxynaphthalene-5-sulfamide, with alkali chromite treated. The dye obtained in this way forms a dark powder that dissolves in water with a dark blue color. It dyes wool from an acid bath in very even blue tones with excellent fastness properties.
CH115469D 1922-11-18 1924-04-20 Process for the production of a chromium-containing dye. CH115469A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH101615T 1922-11-18
CH115469T 1924-04-20

Publications (1)

Publication Number Publication Date
CH115469A true CH115469A (en) 1926-06-16

Family

ID=25706031

Family Applications (1)

Application Number Title Priority Date Filing Date
CH115469D CH115469A (en) 1922-11-18 1924-04-20 Process for the production of a chromium-containing dye.

Country Status (1)

Country Link
CH (1) CH115469A (en)

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