CH191750A - Process for the preparation of an acidic chromating dye of the anthraquinone series. - Google Patents

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

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Publication number
CH191750A
CH191750A CH191750DA CH191750A CH 191750 A CH191750 A CH 191750A CH 191750D A CH191750D A CH 191750DA CH 191750 A CH191750 A CH 191750A
Authority
CH
Switzerland
Prior art keywords
dye
preparation
acidic
anthraquinone series
amino
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 CH191750A publication Critical patent/CH191750A/en

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  • Chemical Treatment Of Metals (AREA)

Description

  

  Verfahren zur Darstellung eines sauren     Cliromierangsfarbstoffes    der     Anthrachinonreihe.            Gegenstand    dieses     Zusatzpatentes    ist ein  Verfahren zur Darstellung eines sauren       Chromierungsfarbstoffes    der     Anthrachinon-          reihe,    welches dadurch gekennzeichnet     ist,     dass man     1-amino-4-bromanthrachinon-2!-sul-          fosaures    Natrium     mit        3-Amino-2,

  4-dimethyl-          benzyl-4'-oxy-3'-carboxyphenylsulfon        kon-          densiert.     



  <I>Beispiel:</I>  20     Gewichtsteile        1=amino-4-bromanthra-          chinon-2-sulfosaures    Natrium, 18     Gewichts-          teile        3-Amino-2;4-dimethylbenzyl-4'-oxy-:

  3'-          carboxyphenylsulfon,    12     Gewichtsteile        So@da          cale.,    15     Gewichtsteile        Natriumbicarbonat     und 1,5     Gewichtsteile        gupferchlorür    werden  in 400 Teilen     Wasser    bis zur Beendigung der       Farbstoffbildung        unter    Rühren auf 65 bis  <B>70'</B> erwärmt.

   Nach dem Erkalten     wird    das       Reaktionsgemisch    abgesaugt, der Filterrück  stand mit     etwas        Wasser    gewaschen und die       vereinigten        Filtrate        mit        verdünnter        Salz-          säure        ausgefällt.        111au    saugt den Niederschlag    ab und     reinigt        ihn    durch Lösen in verdünn  tem     wäss.rigem    Ammoniak     und        erneutes    

  Fäl  len     mit        ;Salzsäure.        Es    wird so ein dunkel  blaues, in     Wasser    mit blauer Farbe lösliches  Produkt erhalten,     welches    auf Wolle aus  saurer     Flotte    ein sehr     rotstichiges    Blau färbt,  dessen Echtheitseigenschaften durch     Nach-          chromieren,der        Färbung    erheblich     verbessert     werden.



  Process for the preparation of an acidic cliromierang dye of the anthraquinone series. The subject of this additional patent is a process for the preparation of an acidic chromating dye of the anthraquinone series, which is characterized in that 1-amino-4-bromoanthraquinone-2! -Sulfosauresodium with 3-amino-2,

  4-dimethylbenzyl-4'-oxy-3'-carboxyphenylsulfone condensed.



  <I> Example: </I> 20 parts by weight of 1 = amino-4-bromoanthraquinone-2-sulfonic acid sodium, 18 parts by weight of 3-amino-2; 4-dimethylbenzyl-4'-oxy-:

  3'-carboxyphenyl sulfone, 12 parts by weight of So @ da cale., 15 parts by weight of sodium bicarbonate and 1.5 parts by weight of gupferchlorur are heated in 400 parts of water to 65 to 70 'with stirring until dye formation has ended.

   After cooling, the reaction mixture is filtered off with suction, the filter residue is washed with a little water and the combined filtrates are precipitated with dilute hydrochloric acid. 111au sucks off the precipitate and cleans it by dissolving it in dilute aqueous ammonia and again

  Fall with; hydrochloric acid. This gives a dark blue product which is soluble in water with a blue color and which dyes a very reddish-tinged blue on wool from acidic liquor, the fastness properties of which are considerably improved by post-chroming the dyeing.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines sauren Chramierungsfarbstoffes der Anthrachinon- reihe, dadurch gekennzeichnet, ,dass man 1- amino-4-bromanthrachinon 2-sulfosaures Na trium mit 3-Amino-2,4-dim:ethylbenzyl-4'- oxy-: PATENT CLAIM: A process for the preparation of an acidic chromating dye of the anthraquinone series, characterized in that 1-amino-4-bromoanthraquinone-2-sulfonic acid sodium is mixed with 3-amino-2,4-dim: ethylbenzyl-4'-oxy-: 3'-crboxyphenylsulfon kondensiert. Der so erhaltene Farbstoff bildet -ein dun kelblaues, wasserlösliches Produkt, welches Wolle aus saurer Flotte in rotstichig blauen Tönen färbt, deren Echtheitseigenschaften durch Nachchromieren v-erb?#ssert werden. 3'-crboxyphenyl sulfone condensed. The dye thus obtained forms a dark blue, water-soluble product which dyes wool from acidic liquor in reddish-tinged blue tones, the fastness properties of which are improved by subsequent chrome plating. UNTERANSPRUCH: Verfahren nach Patentanspruch, dadurch gekennzeichnet, @dass man die Kondensation der Reaktionskomponenten durch Erhitzen in Wasser in Gegenwart von Natriumcarbonat, Natriumbiearbonat und Kupferchlorür be wirkt. SUBSTANTIAL CLAIM: Process according to patent claim, characterized in that the condensation of the reaction components is effected by heating in water in the presence of sodium carbonate, sodium carbonate and copper chloride.
CH191750D 1934-12-22 1935-12-19 Process for the preparation of an acidic chromating dye of the anthraquinone series. CH191750A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE191750X 1934-12-22
DE231035X 1935-10-23
CH188888T 1935-12-19

Publications (1)

Publication Number Publication Date
CH191750A true CH191750A (en) 1937-06-30

Family

ID=27177766

Family Applications (1)

Application Number Title Priority Date Filing Date
CH191750D CH191750A (en) 1934-12-22 1935-12-19 Process for the preparation of an acidic chromating dye of the anthraquinone series.

Country Status (1)

Country Link
CH (1) CH191750A (en)

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