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CH287563A - Process for the production of an acid milled dye of the anthraquinone series. - Google Patents

Process for the production of an acid milled dye of the anthraquinone series.

Info

Publication number
CH287563A
CH287563A CH287563DA CH287563A CH 287563 A CH287563 A CH 287563A CH 287563D A CH287563D A CH 287563DA CH 287563 A CH287563 A CH 287563A
Authority
CH
Switzerland
Prior art keywords
production
anthraquinone series
brominating agent
milled
acid
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 CH287563A publication Critical patent/CH287563A/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

  

  <B>Verfahren</B> zur Herstellung eines     sauren        Walkfarbstoffes    der     Anthrachinonreihe            Gegenstand    des vorliegenden Patentes ist  ein Verfahren zur Herstellung eines sauren       Walkfarbstoffes    .der     Anthrachinonreihe,    wel  ches darin besteht, dass man     1-Aznino-4-(5',6',          7',8'-        tetrahydronaphthyl,,    2') -     aminoanthrachi-          non-2-sulfonsäure    durch Behandeln mit einem       bromierenden    Mittel in den     dibromierten    Ab  kömmling überführt.

    



       Beispiel:     44,8 Teile     1-Amino-4-(5',6',7',8'-tetrahydro.          naphthyl-2')        -aminoanthrachinon-2-sulfonsäure     werden in 1000 Teilen 87     o/oiger    Schwefelsäure  gelöst. Darauf werden der Lösung innert drei  Stunden 30 Teile Brom     zugetropft.    Die Masse       wird    während 72 Stunden bei Raumtempera  tur     gerührt    und hierauf aufgearbeitet. Man  erhält einen Farbstoff, der sich in Wasser mit       rotstichig    blauer Farbe löst.

   In     konzentrierter     Schwefelsäure ist seine Lösungsfarbe klar       blau;    sie schlägt beim Zusatz von     Paraform-          aldehyd    nach     grünblau    um.  



  Der neue Farbstoff färbt Wolle und an  dere tierische Fasern sowie Nylon in klaren,       rotstichig    blauen Tönen von hervorragender  Schweiss- und     Walkechtheit    und besitzt ferner  ein ausgezeichnetes     Neutralziehvermögen.  



  <B> Process </B> for the production of an acid milled dyestuff of the anthraquinone series The subject of the present patent is a process for the production of an acid milled dyestuff of the anthraquinone series, which consists of 1-aznino-4- (5 ', 6' , 7 ', 8'-tetrahydronaphthyl ,, 2') - aminoanthraquinone-2-sulfonic acid converted into the dibrominated derivative by treatment with a brominating agent.

    



       Example: 44.8 parts of 1-amino-4- (5 ', 6', 7 ', 8'-tetrahydro. Naphthyl-2') -aminoanthraquinone-2-sulfonic acid are dissolved in 1000 parts of 87% sulfuric acid. Then 30 parts of bromine are added dropwise to the solution within three hours. The mass is stirred for 72 hours at room temperature and then worked up. A dye is obtained which dissolves in water with a reddish blue color.

   In concentrated sulfuric acid, its solution color is clear blue; it changes to green-blue when paraformaldehyde is added.



  The new dye dyes wool and other animal fibers and nylon in clear, reddish-tinged blue shades of excellent sweat and milled fastness and also has excellent neutral drawability.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines, sauren. Walkfarbstoffes der Anthrachinonreihe, da durch gekennzeichnet, dass man 1-Amino-4 (5',6',7',8'-tetrahydronaphthyl-2')-aminoanthra- chinon-2-sulfonsäure durch Behandeln mit einem bromierenden Mittel in den dibromier- ten Abkömmling überführt. PATENT CLAIM: Process for the production of an acidic. Milled dyestuff of the anthraquinone series, characterized in that 1-amino-4 (5 ', 6', 7 ', 8'-tetrahydronaphthyl-2') -aminoanthraquinone-2-sulfonic acid is dibrominated by treating with a brominating agent - th descendant transferred. Der neue Farbstoff färbt Wolle und an dere tierische Fasern sowie Nylon in klaren, rotstichig blauen Tönen von hervorragender Schweiss- und Walkechtheit und besitzt ferner ein ausgezeichnetes Neutralziehvermögen. UNTERANSPRV CHE 1. Verfahren nach Patentanspruch da durch gekennzeichnet, dass man als bromieren- des Mittel elementares Brom wählt. 2. Verfahren nach Patentanspruch, da durch gekennzeichnet, dass man die Behand lung mit dem bromierenden Mittel in Schwe felsäure ausführt. 3. The new dye dyes wool and other animal fibers and nylon in clear, reddish-tinged blue shades of excellent sweat and milled fastness and also has excellent neutral drawability. SUBSTANTIARY 1. The method according to claim is characterized in that elemental bromine is selected as the brominating agent. 2. The method according to claim, characterized in that the treatment is carried out with the brominating agent in sulfuric acid. 3. Verfahren nach Patentanspruch und Unteransprüchen 1 und 2, dadurch gekenn zeichnet, dass man die Bromierung bei Raum temperatur ausführt. Process according to patent claim and dependent claims 1 and 2, characterized in that the bromination is carried out at room temperature.
CH287563D 1950-09-27 1950-09-27 Process for the production of an acid milled dye of the anthraquinone series. CH287563A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH287563T 1950-09-27

Publications (1)

Publication Number Publication Date
CH287563A true CH287563A (en) 1952-12-15

Family

ID=4485843

Family Applications (1)

Application Number Title Priority Date Filing Date
CH287563D CH287563A (en) 1950-09-27 1950-09-27 Process for the production of an acid milled dye of the anthraquinone series.

Country Status (1)

Country Link
CH (1) CH287563A (en)

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