CH117271A - Process for the production of a new dye. - Google Patents

Process for the production of a new dye.

Info

Publication number
CH117271A
CH117271A CH117271DA CH117271A CH 117271 A CH117271 A CH 117271A CH 117271D A CH117271D A CH 117271DA CH 117271 A CH117271 A CH 117271A
Authority
CH
Switzerland
Prior art keywords
dye
green
new dye
acid
production
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 CH117271A publication Critical patent/CH117271A/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

  

  Verfahren     zur    Herstellung eines neuen     Farbstoffes.       Es wurde gefunden, dass man einen neuen  Farbstoff erhält, wenn man dianotierte     4-Nitro-          2-amino-l-phenol-6-sulfosäure    mit     3-Amino-          naphthalin-1,8-dikarbonsäure    vereinigt und den  so erhaltenen     Azofarbstoff    mit chromabgeben  den Mitteln behandelt. Der neue Farbstoff  stellt ein schwärzliches Pulver dar und löst  sich in Wasser mit grüner, in konzentrierter  Schwefelsäure mit gelbbrauner Farbe.

   Er  färbt Wolle aus saurem Bade in grünen  Tönen von vorzüglichen Echtheitseigenschaften  und gibt im Baumwolldruck, vorzugsweise in  Gegenwart von Chrombeizen, echte, grüne  Färbungen.  



       Beispiel:     10,7 Teile     3-Aminonaphthalin-1,8-dikar-          bonsäureanhydrid    werden mit Hilfe von  10 Teilen 30     o%iger    Natronlauge in 150 Teilen  Wasser heiss gelöst, mit 10 Teilen Soda ver  setzt, abgekühlt und mit der aus 11,7 Teilen       4-Nitro-2-amino-l-phenol-6-sulfosäure    herge  stellten     Diazoverbindung    versetzt. Nach er  folgter Kupplung wird der Farbstoff     ausge-          salzen,    filtriert und getrocknet.  



  47,6 Teile des so erhaltenen     Azofarb-          stoffes    werden in 950 Teilen Wasser lochend    gelöst, mit einer     Ohromfluoridlösung    entspre  chend 22,6 Teilen     Or20s    versetzt und längere  Zeit in Gegenwart von Glaspulver am     R,ück-          flusskühler    gekocht. Die gebildete Chromver  bindung wird     abfiltriert,    mit Wasser ge  waschen, in lauwarmer, verdünnter, wässeriger  Natronlauge gelöst und nach     Neutralstellen     der Lösung mit Essigsäure in üblicher Weise  abgeschieden.



  Process for the production of a new dye. It has been found that a new dye is obtained if dianotated 4-nitro-2-amino-1-phenol-6-sulfonic acid is combined with 3-amino-naphthalene-1,8-dicarboxylic acid and the azo dye thus obtained is given off with chromium Means treated. The new dye is a blackish powder and dissolves in water with green, in concentrated sulfuric acid with yellow-brown color.

   It dyes wool from an acid bath in green shades with excellent fastness properties and gives real, green dyeings in cotton printing, preferably in the presence of chrome stains.



       Example: 10.7 parts of 3-aminonaphthalene-1,8-dicarboxylic acid anhydride are dissolved in 150 parts of hot water with the aid of 10 parts of 30% strength sodium hydroxide solution, 10 parts of soda are added, the mixture is cooled and the solution from 11.7 Parts of 4-nitro-2-amino-1-phenol-6-sulfonic acid herge provided diazo compound added. After coupling has taken place, the dye is salted out, filtered and dried.



  47.6 parts of the azo dye thus obtained are dissolved with holes in 950 parts of water, an ohmic fluoride solution corresponding to 22.6 parts of Or20s is added and the mixture is boiled for a long time in the presence of glass powder on a reflux condenser. The chromium compound formed is filtered off, washed with water, dissolved in lukewarm, dilute, aqueous sodium hydroxide solution and, after the solution has been rendered neutral with acetic acid, deposited in the usual way.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Farbstoffes, dadurch gekennzeichnet, dass man dianotierte 4-Nitro-2-amino-l-phenol-6-sulfo- säure mit 3-Aminonaphthalin-1,8-dikarbon- säure vereinigt und den so erhaltenen Azo- farbstoff mit chromabgebenden Mitteln be handelt. Der neue Farbstoff stellt ein schwärz liches Pulver dar und löst sich in Wasser mit grüner, in konzentrierter Schwefelsäure mit gelbbrauner Farbe. PATENT CLAIM: Process for the production of a new dye, characterized in that dianotated 4-nitro-2-amino-1-phenol-6-sulfonic acid is combined with 3-aminonaphthalene-1,8-dicarboxylic acid and the azo thus obtained - Dye treated with chromium-releasing agents. The new dye is a blackish powder and dissolves in water with green, in concentrated sulfuric acid with yellow-brown color. Er färbt Wolle aus saurem Bade in grünen Tönen von vorzüg lichen Echtheitseigenschaften und gibt im Baumwolldruck, vorzugsweise in Gegenwart von Chrombeizen, echte, grüne Färbungen. It dyes wool from acid baths in green shades with excellent fastness properties and gives real green dyeings in cotton printing, preferably in the presence of chrome stains.
CH117271D 1923-12-28 1925-07-31 Process for the production of a new dye. CH117271A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH110287T 1923-12-28
CH117271T 1925-07-31

Publications (1)

Publication Number Publication Date
CH117271A true CH117271A (en) 1926-10-16

Family

ID=25707696

Family Applications (1)

Application Number Title Priority Date Filing Date
CH117271D CH117271A (en) 1923-12-28 1925-07-31 Process for the production of a new dye.

Country Status (1)

Country Link
CH (1) CH117271A (en)

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