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CH157522A - Process for the production of a new azo dye. - Google Patents

Process for the production of a new azo dye.

Info

Publication number
CH157522A
CH157522A CH157522DA CH157522A CH 157522 A CH157522 A CH 157522A CH 157522D A CH157522D A CH 157522DA CH 157522 A CH157522 A CH 157522A
Authority
CH
Switzerland
Prior art keywords
dye
production
red
sulfuric acid
azo 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 CH157522A publication Critical patent/CH157522A/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.         Yerfabren        zur        Herstellung    eines neuen     Azofarbstoffes.       Es wurde gefunden, dass man einen neuen       Azofarbstoff    erhält, wenn man dianotierte       2-Amino-l-phenol-4,6-disulfosäure    mit 7,8  Benzo-2,4-diogychinolin kuppelt und den er  haltenen Farbstoff mit einem chromabgeben  den Mittel behandelt.  



  Der erhaltene Farbstoff stellt ein braun  rotes Pulver dar, das sich sehr leicht in  Wasser, in 10     o/oiger    Natronlauge und in  10     o/oiger        Sodalösung    mit roter und in kon  zentrierter Schwefelsäure mit orangegelber  Farbe löst. Der Farbstoff färbt Wolle aus  schwefelsaurem Bade bei sehr gutem Zieh  vermögen sehr gleichmässig     blaustichigrot.     Die Färbungen besitzen eine gute Walk  und Lichtechtheit.    <I>Beispiel:</I>    269 Teile     2-Amino-l-phenol-4,6-disulfo-          säure    werden in üblicher Weise dianotiert.

    Die     Diazolösung    lässt man unter Rühren zu  einem mit Eis auf 10 o abgekühlten Gemisch  von 220 Teilen     7,8-Beiizo-2,4-dioxychinölin,       1000 Teilen Wasser, 45 Teilen     Ätznatron     und 120 Teilen Soda zufliessen. Der Farb  stoff ist nach beendeter Kupplung vollständig       abgeschieden.    Der     abfiltrierte    Farbstoff wird  mit 8000 Teilen Wasser angerührt und mit  einer aus 88 Teilen Chromoxyd, 170 Teilen  konzentrierter Schwefelsäure und 600 Teilen  Wasser hergestellten     Chromsulfatlösung    ver  setzt.

   Das Gemisch wird 18-20 Stunden  unter     Rückfluss    zum Sieden erhitzt und hier  auf die Chromverbindung des Farbstoffes mit  Kochsalz abgeschieden,     abfiltriert    und ge  trocknet.



  <B> Additional patent </B> to the main patent No. 153486. Yerfabren for the production of a new azo dye. It has been found that a new azo dye is obtained if dianotated 2-amino-1-phenol-4,6-disulfonic acid is coupled with 7,8 benzo-2,4-diogyquinoline and the dye obtained is treated with a chromium-releasing agent .



  The dye obtained is a brown-red powder which dissolves very easily in water, in 10% sodium hydroxide solution and in 10% soda solution with red and concentrated sulfuric acid with an orange-yellow color. The dye dyes wool from a sulfuric acid bath with very good drawing ability, very evenly blue-tinged red. The dyeings have good fulling and lightfastness. <I> Example: </I> 269 parts of 2-amino-1-phenol-4,6-disulfonic acid are dianotized in the customary manner.

    The diazo solution is allowed to flow into a mixture, cooled with ice to 10 o, of 220 parts of 7,8-beiizo-2,4-dioxyquinoline, 1000 parts of water, 45 parts of caustic soda and 120 parts of soda, while stirring. The dye is completely deposited after the coupling is complete. The filtered dye is mixed with 8000 parts of water and ver with a chromium sulfate solution prepared from 88 parts of chromium oxide, 170 parts of concentrated sulfuric acid and 600 parts of water.

   The mixture is heated to boiling under reflux for 18-20 hours and here deposited on the chromium compound of the dye with common salt, filtered off and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Azofarbstoffes, dadurch gekennzeichnet, dass man dianotierte 2-Amino-l-phenol-4,6-disulfo- säure mit 7,8-Benzo-2,4-dioxychinolin kuppelt und den erhaltenen Farbstoff mit einem chromabgebenden Mittel behandelt. Der erhaltene Farbstoff stellt ein braun rotes Pulver dar, das sich sehr leicht in Wasser, in 10 %iger Natronlauge und in 10 %iger Sodalösung mit roter und in kon zentrierter Schwefelsäure mit orangegelber Farbe löst. PATENT CLAIM: A process for the production of a new azo dye, characterized in that dianotated 2-amino-1-phenol-4,6-disulfonic acid is coupled with 7,8-benzo-2,4-dioxyquinoline and the dye obtained is coupled with a chromium donating agent Means treated. The dye obtained is a brown-red powder which dissolves very easily in water, in 10% strength sodium hydroxide solution and in 10% strength soda solution with red and concentrated sulfuric acid with an orange-yellow color. Der Farbstoff färbt Wolle aus schwefelsaurem Bade bei sehr gutem Zieh- vermögen sehr gleichmässig blaustichigrot. Die Färbungen besitzen eine gute Walk- und Lichtechtheit. The dye dyes wool from a sulfuric acid bath very evenly with a very even bluish-tinted red color with very good drawability. The dyeings have good fulling and lightfastness.
CH157522D 1930-12-16 1930-12-16 Process for the production of a new azo dye. CH157522A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH157522T 1930-12-16
CH153486T 1930-12-16

Publications (1)

Publication Number Publication Date
CH157522A true CH157522A (en) 1932-09-30

Family

ID=25716201

Family Applications (1)

Application Number Title Priority Date Filing Date
CH157522D CH157522A (en) 1930-12-16 1930-12-16 Process for the production of a new azo dye.

Country Status (1)

Country Link
CH (1) CH157522A (en)

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