CH246191A - Process for the preparation of a new acidic anthraquinone dye. - Google Patents

Process for the preparation of a new acidic anthraquinone dye.

Info

Publication number
CH246191A
CH246191A CH246191DA CH246191A CH 246191 A CH246191 A CH 246191A CH 246191D A CH246191D A CH 246191DA CH 246191 A CH246191 A CH 246191A
Authority
CH
Switzerland
Prior art keywords
dye
preparation
anthraquinone dye
new
new acidic
Prior art date
Application number
Other languages
German (de)
Inventor
Ag Sandoz
Original Assignee
Ag Sandoz
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 Ag Sandoz filed Critical Ag Sandoz
Publication of CH246191A publication Critical patent/CH246191A/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
    • C09B1/00—Dyes with anthracene nucleus not condensed with any other ring
    • C09B1/16—Amino-anthraquinones
    • C09B1/20—Preparation from starting materials already containing the anthracene nucleus
    • C09B1/26—Dyes with amino groups substituted by hydrocarbon radicals
    • C09B1/32—Dyes with amino groups substituted by hydrocarbon radicals substituted by aryl groups
    • C09B1/34—Dyes with amino groups substituted by hydrocarbon radicals substituted by aryl groups sulfonated
    • C09B1/343—Dyes with amino groups substituted by hydrocarbon radicals substituted by aryl groups sulfonated only sulfonated in the anthracene nucleus

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Coloring (AREA)

Description

  

      Zusatzpatent    zum Hauptpatent Nr. 242846.    Verfahren zur Herstellung eines neuen sauren     Anthrachinonfarbatoffes.       Das vorliegende Patent betrifft ein Ver  fahren zur Herstellung eines sauren     Anthra-          chinonfarbstoffes        und    ist dadurch gekenn  zeichnet, dass man auf     1-Amino-4-(2'6'-dime-          thylphenylamino)-anthraehin.on-2-sulfonsäure     Brom einwirken lässt.

      <I>Beispiel:</I>  14,6     Teilel-Amino-4-(2'6'-dimethylphenyl-          amino)-anthrachinon-2-sulfonsäure    werden in  130 Teilen Schwefelsäure von 95-100% bei  10-20  gelöst und unter gutem Rühren lang  sam mit 6 Teilen Brom versetzt. Es     wird    so  lange gerührt, bis die Reaktion     beendet    ist,  wobei zum Schluss die Temperatur auf 40  bis 60      gesteigert        werden    kann.

   Der gebildete  Farbstoff wird in üblicher Weise durch Ein  giessen in Eis und Wasser abgetrennt und       abfiltriert.    Nach dem Aufarbeiten und  Trocknen erhält man ein dunkelblaues Pul  ver, das Wolle, Seide und andere Textilien  in sehr lebhaften     rötlichblauen    Tönen von  ausgezeichneten     Echtheiten    färbt. Der Farb  stoff löst sich in Schwefelsäure     conc.    mit  blauer Farbe und besitzt die Formel  
EMI0001.0018     




      Additional patent to main patent no. 242846. Process for the production of a new acidic anthraquinone dye. The present patent relates to a method for the production of an acidic anthraquinone dye and is characterized in that bromine is allowed to act on 1-amino-4- (2'6'-dimethylphenylamino) -anthraehin.on-2-sulfonic acid .

      <I> Example: </I> 14.6 parts of amino-4- (2'6'-dimethylphenyl-amino) -anthraquinone-2-sulfonic acid are dissolved in 130 parts of sulfuric acid of 95-100% at 10-20 and 6 parts of bromine were slowly added with thorough stirring. The mixture is stirred until the reaction has ended, and the temperature can be increased to 40 to 60 at the end.

   The dye formed is separated off in the usual way by pouring into ice and water and filtered off. After working up and drying, a dark blue powder is obtained which dyes wool, silk and other textiles in very vivid reddish-blue shades with excellent fastness properties. The dye dissolves in sulfuric acid conc. with blue color and has the formula
EMI0001.0018

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen sauren Anthrachinonfarbstoffes, dadurch ge kennzeichnet, dass man auf 1-Amino-4-(2'6'- dimethylphenylamino) - anthrachinon - 2 - sul- fonsäure Brom einwirken lässt. Der neue Farbstoff stellt ein dunkel blaues Pulver dar, das Wolle, Seide und andere Textilien in sehr lebhaften rötlich blauen Tönen von ausgezeichneten Echt- heiten färbt. PATENT CLAIM: Process for producing a new acidic anthraquinone dye, characterized in that 1-amino-4- (2'6'-dimethylphenylamino) - anthraquinone - 2 - sulphonic acid bromine is allowed to act. The new dye is a dark blue powder that dyes wool, silk and other textiles in very vivid reddish blue tones with excellent fastness properties. Der Farbstoff löst sich in Schwefelsäure conc. mit blauer Farbe und besitzt die Formel EMI0001.0032 The dye dissolves in sulfuric acid conc. with blue color and has the formula EMI0001.0032
CH246191D 1945-02-12 1945-02-12 Process for the preparation of a new acidic anthraquinone dye. CH246191A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH246191T 1945-02-12
CH242846T 1945-02-12

Publications (1)

Publication Number Publication Date
CH246191A true CH246191A (en) 1946-12-15

Family

ID=25728767

Family Applications (1)

Application Number Title Priority Date Filing Date
CH246191D CH246191A (en) 1945-02-12 1945-02-12 Process for the preparation of a new acidic anthraquinone dye.

Country Status (1)

Country Link
CH (1) CH246191A (en)

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