CH119124A - Process for the production of a new dye. - Google Patents

Process for the production of a new dye.

Info

Publication number
CH119124A
CH119124A CH119124DA CH119124A CH 119124 A CH119124 A CH 119124A CH 119124D A CH119124D A CH 119124DA CH 119124 A CH119124 A CH 119124A
Authority
CH
Switzerland
Prior art keywords
dye
new dye
production
mol
new
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 CH119124A publication Critical patent/CH119124A/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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Coloring (AREA)

Description

       

  Verfahren zur Herstellung eines neuen     Farbstoffes.       Es wurde gefunden, dass man einen  neuen, wertvollen Farbstoff erhält,     wenn     man den     Azofarbstoff,    den man durch Kup  peln von 1     Mol.        diazotiertem        5-Nitro-2-amino-          1-phenol    mit 1     Mol.        1-Naphthylamin-3,6-di-          sulfosäure    erhalten kann, mit     Chromfluorid     behandelt. Der neue Farbstoff stellt ein  schwärzliches Pulver dar und färbt Wolle  aus schwefelsaurem Bade in grünen Tönen  mit vorzüglichen Echtheitseigenschaften.

      <I>Beispiel:</I>  50 Teile des     Natriumsalzes    des aus     di-          a.zotiertem        5-Nitro-2-amino-l-phenol    und     1-          Naphthylamin-3,6-disulfosäure    erhältlichen  Farbstoffes werden in 900 Teilen Wasser  kochend gelöst, mit 15,2 Teilen Chromoxyd  in Form von     Chromfluorid    versetzt und in  Gegenwart von Glaspulver längere Zeit    rückfliessend gekocht. Durch Eindampfen  und     Aussalzen    wird der neue chromhaltige  Farbstoff gewonnen.



  Process for the production of a new dye. It has been found that a new, valuable dye is obtained if the azo dye, which is obtained by coupling 1 mol of diazotized 5-nitro-2-amino-1-phenol with 1 mol. 1-naphthylamine-3,6 -Disulfonic acid, treated with chromium fluoride. The new dye is a blackish powder and dyes wool from sulfuric acid bath in green shades with excellent fastness properties.

      <I> Example: </I> 50 parts of the sodium salt of the dye obtainable from di-a.zotierter 5-nitro-2-amino-1-phenol and 1-naphthylamine-3,6-disulfonic acid are dissolved in 900 parts of boiling water , mixed with 15.2 parts of chromium oxide in the form of chromium fluoride and refluxed for a long time in the presence of glass powder. The new chromium-containing dye is obtained by evaporation and salting out.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Farbstoffes, dadurch gekennzeichnet, dass man den Azofarbstoff, den man durch Kup peln .von 1 Mol. diazotiertem 5-Nitro-2- amino-l-phenol mit 1 Mol. 1-Naphthylamin- 3,6-disulfosäure erhalten kann, mit Chrom- fluorid behandelt. PATENT CLAIM: Process for the preparation of a new dye, characterized in that the azo dye, which is obtained by coupling .von 1 mol. Of diazotized 5-nitro-2-amino-1-phenol with 1 mol. 1-naphthylamine-3,6 -disulfonic acid, treated with chromium fluoride. Der neue Farbstoff stellt ein schwärzliches Pulver dar und färbt Wolle aus schwefelsaurem Bade in grünen Tönen mit vorzüglichen Echtheitseigen- schaf ten. The new dye is a blackish powder and dyes wool from sulfuric acid bath in green shades with excellent fastness properties.
CH119124D 1925-02-14 1925-02-14 Process for the production of a new dye. CH119124A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH119124T 1925-02-14
CH115111T 1926-06-01

Publications (1)

Publication Number Publication Date
CH119124A true CH119124A (en) 1927-02-16

Family

ID=25708453

Family Applications (1)

Application Number Title Priority Date Filing Date
CH119124D CH119124A (en) 1925-02-14 1925-02-14 Process for the production of a new dye.

Country Status (1)

Country Link
CH (1) CH119124A (en)

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