CH175251A - Process for the preparation of an acidic wool dye of the anthraquinone series. - Google Patents

Process for the preparation of an acidic wool dye of the anthraquinone series.

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Publication number
CH175251A
CH175251A CH175251DA CH175251A CH 175251 A CH175251 A CH 175251A CH 175251D A CH175251D A CH 175251DA CH 175251 A CH175251 A CH 175251A
Authority
CH
Switzerland
Prior art keywords
preparation
anthraquinone series
amino
acidic
wool dye
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellsc Farbenindustrie
Original Assignee
Ig Farbenindustrie Ag
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 Ig Farbenindustrie Ag filed Critical Ig Farbenindustrie Ag
Publication of CH175251A publication Critical patent/CH175251A/en

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Description

  

  Verfahren zur Darstellung eines sauren     Wollfarbstoffes    der     Anthrachinonreihe.       Gegenstand vorliegenden Zusatzpatentes  ist ein Verfahren zur Darstellung eines  sauren Wollfarbstoffes der     Anthrachinon-          reihe,    das<B>-</B>darin besteht, dass man 1     Mol          l.-Amino-2    .     4-dibromanthrachinon    mit 1     Mol          2-Amino-1    . 2<B>.3.</B>     4-tetrahydronaphthalin    zur  Umsetzung bringt und den so erhaltenen  Stoff     sulfiert.     



       Beispiel:     12 Gewichtsteile 1 -     Amino    - 2 . 4 -     @dibrom-          anthrachinon    werden mit 5 Gewichtsteilen       Kaliumacetat    in 60 Gewichtsteilen     2-Amino-          1    . ? . 3 . 4 -     tetrahydronaphthalin    mehrere  Stunden auf 180 bis 190   erhitzt. Durch  Verdünnen der Schmelze mit Methanol schei  den sich blaue Nadeln ab.

   Schmelzpunkt  <B>203'.</B> Der Farbstoff wird durch Monohydrat       sulfiert.    Die so erhaltene     Monosulfosäure     färbt Wolle aus saurem Bade in     rotstichig     blauen Tönen, die sich durch sehr gute  Wasch-, Walk- und     Seewasserechtheit    aus  zeichnen.



  Process for the preparation of an acidic wool dye of the anthraquinone series. The subject of the present additional patent is a process for the preparation of an acidic wool dye of the anthraquinone series, which consists of 1 mol of 1-amino-2. 4-dibromoanthraquinone with 1 mole of 2-amino-1. 2 <B> .3. </B> 4-tetrahydronaphthalene reacts and sulfates the substance thus obtained.



       Example: 12 parts by weight of 1 - amino - 2. 4 - @ dibromo-anthraquinone with 5 parts by weight of potassium acetate in 60 parts by weight of 2-amino-1. ? . 3. 4 - tetrahydronaphthalene heated to 180 to 190 for several hours. By diluting the melt with methanol, blue needles are separated off.

   Melting point <B> 203 '. </B> The dye is sulfated by monohydrate. The monosulfonic acid obtained in this way dyes wool from an acid bath in reddish-tinged blue tones, which are characterized by very good fastness to washing, fulling and seawater.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines sauren Wollfarbstoffes der Anthrachinonreihe, da durch gekennzeichnet, dass man 1 Mol 1 Amino-2.4-dibromanthrachinon mit 1 Hol 2-Amino-1 . 2. 3. 4-tetrahydronaphthalin zur Umsetzung bringt und den so erhaltenen Stoff sulfiert. Die so erhältliche Monosulfosäure färbt Wolle aus saurem Bade in rotstichig blauen Tönen, ,die sich durch sehr gute Wasch-, Walk- und Seewasserechtheit auszeichnen. UNTERANSPRÜCHE 1. PATENT CLAIM: Process for the preparation of an acidic wool dye of the anthraquinone series, characterized in that 1 mol of 1 amino-2,4-dibromoanthraquinone is mixed with 1 hol of 2-amino-1. 2. 3. Bringing 4-tetrahydronaphthalene to reaction and sulfating the substance thus obtained. The monosulfonic acid that can be obtained in this way dyes wool from an acid bath in reddish-tinged blue shades, which are characterized by very good fastness to washing, fulling and seawater. SUBCLAIMS 1. Verfahren nach Patentanspruch, .dadurch gekennzeichnet, dass man die Reaktions komponenten in Gegenwart von Kalium acetat mehrere Stunden bei 180 bis<B>190'</B> erhitzt. . Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man die Sulfierung mit,Schwefelsäuremonohydrat bewirkt. Process according to claim, characterized in that the reaction components are heated for several hours at 180 to 190 'in the presence of potassium acetate. . Process according to claim, characterized in that the sulphonation is effected with sulfuric acid monohydrate.
CH175251D 1932-09-19 1934-02-28 Process for the preparation of an acidic wool dye of the anthraquinone series. CH175251A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH163898T 1932-09-19
DE175251X 1933-11-15

Publications (1)

Publication Number Publication Date
CH175251A true CH175251A (en) 1935-02-15

Family

ID=25717900

Family Applications (1)

Application Number Title Priority Date Filing Date
CH175251D CH175251A (en) 1932-09-19 1934-02-28 Process for the preparation of an acidic wool dye of the anthraquinone series.

Country Status (1)

Country Link
CH (1) CH175251A (en)

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