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CH119121A - Process for the production of a new dye. - Google Patents

Process for the production of a new dye.

Info

Publication number
CH119121A
CH119121A CH119121DA CH119121A CH 119121 A CH119121 A CH 119121A CH 119121D A CH119121D A CH 119121DA CH 119121 A CH119121 A CH 119121A
Authority
CH
Switzerland
Prior art keywords
dye
new dye
production
new
mole
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 CH119121A publication Critical patent/CH119121A/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)

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        4-Nitro-2-          amino-l-phenol    mit 1     Mol.        1-Naphthylamin-          4-sulfosäure    erhalten kann, mit     Chromfluo-          rid    behandelt.

   Der neue Farbstoff stellt ein  schwärzliches Pulver dar und färbt Wolle  aus schwefelsaurem Bade in     olivegrünen    Tö  nen mit vorzüglichen Echtheitseigenschaften.    <I>Beispiel:</I>    50 Teile des     Natriumsalzes    des aus     di-          azotiertem        4-Nitro-2-amino-l-phenol    und     1-          Naphthylamin-4-sulfosäure    erhältlichen Farb  stoffes werden in 900 Teilen Wasser kochend  gelöst, mit 15,2 Teilen Chromoxyd in Form  von     Chromfluorid    versetzt und in Gegen-    wart von Glaspulver längere Zeit rückflie  ssend gekocht.

       Durch    Eindampfen und Aus  salzen 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 4-nitro-2-amino-1-phenol with 1 mol. 1-naphthylamine-4-sulfonic acid can be obtained, treated with chromium fluoride.

   The new dye is a blackish powder and dyes wool from a sulfuric acid bath in olive green tones with excellent fastness properties. <I> Example: </I> 50 parts of the sodium salt of the dye obtainable from di-azotized 4-nitro-2-amino-1-phenol and 1-naphthylamine-4-sulfonic acid are dissolved in 900 parts of boiling water with 15 , 2 parts of chromium oxide added in the form of chromium fluoride and boiled back 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 Farbstoff, den man durch Kuppeln von 1 Mol. diazotiertem 4-Nitro-2-amino-l- phenol mit 1 Mol. 1-Naphthylamin-4-sulfo- säure erhalten kann, mit Chromfluorid be handelt. Der neue Farbstoff stellt ein schwärzliches Pulver dar und färbt Wolle aus schwefelsaurem Bade in olivegrünen Tö nen mit vorzüglichen Echtheitseigenschaften. GESELLSCHAFT FÜR CHEMISCHE INDUSTRIE IN BASEL. Claim: Process for the preparation of a new dye, characterized in that the dye obtained by coupling 1 mole of diazotized 4-nitro-2-amino-1-phenol with 1 mole of 1-naphthylamine-4-sulfo acid can be obtained with chromium fluoride. The new dye is a blackish powder and dyes wool from a sulfuric acid bath in olive green tones with excellent fastness properties. SOCIETY FOR CHEMICAL INDUSTRY IN BASEL.
CH119121D 1925-02-14 1925-02-14 Process for the production of a new dye. CH119121A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH119121T 1925-02-14
CH115111T 1926-06-01

Publications (1)

Publication Number Publication Date
CH119121A true CH119121A (en) 1927-02-16

Family

ID=25708450

Family Applications (1)

Application Number Title Priority Date Filing Date
CH119121D CH119121A (en) 1925-02-14 1925-02-14 Process for the production of a new dye.

Country Status (1)

Country Link
CH (1) CH119121A (en)

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