CH115477A - Process for the production of a chromium-containing dye. - Google Patents

Process for the production of a chromium-containing dye.

Info

Publication number
CH115477A
CH115477A CH115477DA CH115477A CH 115477 A CH115477 A CH 115477A CH 115477D A CH115477D A CH 115477DA CH 115477 A CH115477 A CH 115477A
Authority
CH
Switzerland
Prior art keywords
chromium
dye
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 CH115477A publication Critical patent/CH115477A/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     fferatellun-    eines     ehromhaltiäen    Farbstoffes.    Es wurde gefunden, dass ein neuer  chromhaltiger Farbstoff erhalten     wird,     wenn man den     Azofarbstoff,    welcher  durch Kuppeln der     Diazoverbindung    der     1-          Oxynaphthalin-2-amino    - 8 -     sulf        amid    - 4 =     sulf    o     -          säure    mit     1-Oxynaphthalin-4,8-disulfamid     hergestellt werden kann,

   mit     Chromformiat     behandelt. Der so erhaltene Farbstoff bil  det ein dunkles Pulver, das sich in Wasser  mit blauer Farbe löst. Er färbt Wolle aus  saurem Bade in sehr egalen und reinen  blauen Tönen von hervorragenden Echt  heitseigenschaften.  



  <I>Beispiel:</I>  55,7 Teile des Farbstoffes,     erhalten     durch Vereinigen von     diazotierter        1-Oxy-          naphthalin-2-amino    - 8 -     sulf        amid    - 4 -     sulf        osäure     mit     1-Oxynaphthalin-4,        8-disulf        amid,    werden  in 800 Teilen Wasser kochend gelöst. Hier  auf     wird    mit einer     Chromformiatlösung       entsprechend 16 Teilen     Cr20"    versetzt und  Längere Zeit rückfliessend gekocht.

   Durch  Eindampfen und     Aussalzen    wird die neue  Chromverbindung gewonnen.



  <B> Additional patent </B> to main patent no. 101615. Process for the fferatellun of an honest dye. 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-oxynaphthalene-2-amino-8-sulf amide-4 = sulfo-acid with 1-oxynaphthalene-4,8 -disulfamide can be produced,

   treated with chromium formate. The dye thus obtained forms a dark powder which dissolves in water with a blue color. It dyes wool from an acid bath in very even and pure blue tones with excellent fastness properties.



  <I> Example: </I> 55.7 parts of the dye, obtained by combining diazotized 1-oxynaphthalene-2-amino-8-sulfamide-4-sulfonic acid with 1-oxynaphthalene-4, 8-disulf amide, are dissolved in 800 parts of boiling water. A chromium formate solution corresponding to 16 parts of Cr20 "is added here and the mixture is refluxed for a long time.

   The new chromium compound is obtained by evaporation and salting out.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen chromhaltigen Farbstoffes, dadurch gekenn zeichnet, dass man den Azofarbstoff, wel cher durch Kuppeln der Diazoverbindung der 1-Oxynaphthalin-2-amino-8-sulfamid-4- sulfosäure mit 1-Oxynaphthalin-4,8-disulf- amidhergestellt werden kann, mit Chrom- formiat behandelt. Der so erhaltene Farb stoff bildet ein dunkles Pulver, das sich in Wasser mit blauer Farbe löst. Er färbt Wolle aus saurem Bade in sehr egalen und reinen blauen Tönen von hervorragenden Echtheitseigenschaften. PATENT CLAIM: Process for the production of a new chromium-containing dye, characterized in that the azo dye, wel cher by coupling the diazo compound of 1-oxynaphthalene-2-amino-8-sulfamide-4-sulfonic acid with 1-oxynaphthalene-4,8 disulfamide can be produced, treated with chromium formate. The dye thus obtained forms a dark powder that dissolves in water with a blue color. It dyes wool from an acid bath in very even and pure blue tones with excellent fastness properties.
CH115477D 1922-11-18 1924-04-20 Process for the production of a chromium-containing dye. CH115477A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH101615T 1922-11-18
CH115477T 1924-04-20

Publications (1)

Publication Number Publication Date
CH115477A true CH115477A (en) 1926-07-01

Family

ID=25706039

Family Applications (1)

Application Number Title Priority Date Filing Date
CH115477D CH115477A (en) 1922-11-18 1924-04-20 Process for the production of a chromium-containing dye.

Country Status (1)

Country Link
CH (1) CH115477A (en)

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