CH157525A - Process for the production of a new azo dye. - Google Patents

Process for the production of a new azo dye.

Info

Publication number
CH157525A
CH157525A CH157525DA CH157525A CH 157525 A CH157525 A CH 157525A CH 157525D A CH157525D A CH 157525DA CH 157525 A CH157525 A CH 157525A
Authority
CH
Switzerland
Prior art keywords
dye
violet
azo dye
new azo
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 CH157525A publication Critical patent/CH157525A/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. 153486.         Terfahren    zur Herstellung eines neuen     Azofarbstoffes.       Es wurde gefunden, dass man einen neuen       Azofarbstoff    erhält, wenn man     diazotierte          2-Amino-l-oxynaphthalin-4,8-disulfosäure    mit       2,4-Dioxychinolin    kuppelt und den erhaltenen       Farbstoff    mit einem chromabgebenden Mittel  behandelt.  



  Der erhaltene Farbstoff ist ein dunkel  violettbraun     gefärbtes    Pulver, das sich in  Wasser mit violetter, in 10     o/oiger        Natron-          lauge,        sowie        in        10        %iger        Sodalösung        mit          violettroter    und in konzentrierter Schwefel  säure mit roter Farbe löst. Der Farbstoff  färbt Wolle aus schwefelsaurem Bade sehr  egal in violetten Tönen von guten Echtheits  eigenschaften an.  



       Beispiel:     161 Teile     2,4-Dioxychinolin    werden unter  Rühren in 1300 Teilen Wasser suspendiert  und hierauf 120 Teile     Ätznatron    eingetragen.  Zu dieser Suspension gibt man 330 Teile       diazotierte        2-Amino-l-oxynaphthalin-4,8-disul-          fosäure    und lässt ca. 40 Stunden bei 30-35 0  rühren. Nach dieser Zeit wird der gebildete       Farbstoff        abfiltriert        und        mit        10        %iger        Koch-          salzlösung    gewaschen.

   Die erhaltene Farb-         stoffpaste    wird mit 5000 Teilen Wasser an  gerührt und mit einer     Fluorchromlösung    ver  setzt, die aus 70 Teilen Chromoxyd, 56  Teilen     Flusssäure    und 600     Teiien    Wasser  hergestellt wurde. Das Gemisch wird 20  Stunden unter     Rückfluss    zum Sieden erhitzt  und hierauf die Chromverbindung des Farb  stoffes mit Kochsalz     abgeschieden.  



  <B> Additional patent </B> to the main patent No. 153486. The process for the production of a new azo dye. It has been found that a new azo dye is obtained if diazotized 2-amino-1-oxynaphthalene-4,8-disulfonic acid is coupled with 2,4-dioxyquinoline and the dye obtained is treated with a chromium donating agent.



  The dye obtained is a dark violet-brown colored powder which dissolves in water with violet, in 10% sodium hydroxide solution, and in 10% sodium carbonate solution with violet-red and concentrated sulfuric acid with red color. The dye stains wool from sulfuric acid baths in purple tones with good fastness properties.



       Example: 161 parts of 2,4-dioxyquinoline are suspended in 1300 parts of water with stirring, and 120 parts of caustic soda are added. 330 parts of diazotized 2-amino-1-oxynaphthalene-4,8-disulfonic acid are added to this suspension and the mixture is stirred at 30-35 ° for about 40 hours. After this time, the dye formed is filtered off and washed with 10% sodium chloride solution.

   The dye paste obtained is stirred with 5000 parts of water and treated with a fluorochrome solution prepared from 70 parts of chromium oxide, 56 parts of hydrofluoric acid and 600 parts of water. The mixture is heated to boiling under reflux for 20 hours and the chromium compound of the dye is then deposited with sodium chloride.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Azofarbstoffes, dadurch gekennzeichnet, dass man diazotierte 2-Amino- 1-oxynaphthalin- 4,8-disulfosäure mit 2,4-Dioxychinolin kuppelt und den erhaltenen Farbstoff mit einem chrom abgebenden Mittel behandelt. PATENT CLAIM: Process for the preparation of a new azo dye, characterized in that diazotized 2-amino-1-oxynaphthalene-4,8-disulfonic acid is coupled with 2,4-dioxyquinoline and the dye obtained is treated with a chromium-releasing agent. Der erhaltene Farbstoff ist ein dunkel violettbraun gefärbtes Pulver, das sich in Wasser mit violetter, in 10 %iger Natron- lauge, sowie in 10 % iger Sodalösung mit violettroter und in konzentrierter Schwefel säure mit roter Farbe löst. The dye obtained is a dark violet-brown colored powder which dissolves in water with violet, in 10% sodium hydroxide solution, and in 10% sodium carbonate solution with violet-red and in concentrated sulfuric acid with red color. Der Farbstoff färbt Wolle aus schwefelsaurem Bade sehr egal in violetten Tönen von guten Echtheits eigenschaften an. The dye stains wool from sulfuric acid baths in purple tones with good fastness properties.
CH157525D 1930-12-16 1930-12-16 Process for the production of a new azo dye. CH157525A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH157525T 1930-12-16
CH153486T 1930-12-16

Publications (1)

Publication Number Publication Date
CH157525A true CH157525A (en) 1932-09-30

Family

ID=25716204

Family Applications (1)

Application Number Title Priority Date Filing Date
CH157525D CH157525A (en) 1930-12-16 1930-12-16 Process for the production of a new azo dye.

Country Status (1)

Country Link
CH (1) CH157525A (en)

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