CH185589A - Process for the preparation of an acidic dye of the anthraquinone series. - Google Patents

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

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Publication number
CH185589A
CH185589A CH185589DA CH185589A CH 185589 A CH185589 A CH 185589A CH 185589D A CH185589D A CH 185589DA CH 185589 A CH185589 A CH 185589A
Authority
CH
Switzerland
Prior art keywords
preparation
dye
anthraquinone series
acidic dye
sulfonic acid
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 CH185589A publication Critical patent/CH185589A/en

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Description

  

  Verfahren zur Darstellung eines sauren     Farbstoffes    der     Anthr        achinonr        eihe.       Gegenstand dieses Zusatzpatentes ist ein  Verfahren zur Darstellung eines sauren Farb  stoffes der     Anthrachinonreihe,    welches da  durch gekennzeichnet ist,     dass,    man     1-amino-          4-bromanthrachinorr-2-sulfosaur,es    Natrium  mit     2-Aminotoluol-4-sulfonsäuremethylätha-          nolamid    kondensiert.

      <I>Beispiel:</I>    40 Gewichtsteile     1-amino-4-brornarrthra-          chinon-2-sulfosaures    Natrium, 26 Gewichts  teile     2-Amirrotoluol-4-sulfonsäuremethyl-ätha-          nolamid,    20     C        ewichtsteile        Natriumbicarbonat,     3 Gewichtsteile     gupferchlorür    werden in  600 Gewichtsteilen Wasser bei<B>60-70'</B> C  24 Stunden gerührt. Nach Isolierung und  Reinigung in der üblichen Weise wird ein  Farbstoff erhalten, welcher auf Wolle und  Seide ein klares Blau von sehr guter Egalität  liefert.



  Process for the preparation of an acidic dye of the anthracinone series. The subject of this additional patent is a process for the preparation of an acidic dye of the anthraquinone series, which is characterized in that 1-amino-4-bromoanthraquinor-2-sulfonic acid is condensed with sodium with 2-aminotoluene-4-sulfonic acid methylethanolamide.

      <I> Example: </I> 40 parts by weight of 1-amino-4-brornarrthra- quinone-2-sulfonic acid sodium, 26 parts by weight of 2-amirrotoluene-4-sulfonic acid methyl-ethanolamide, 20 parts by weight of sodium bicarbonate, 3 parts by weight of gupferchlorur stirred in 600 parts by weight of water at 60-70 ° C. for 24 hours. After isolation and cleaning in the usual way, a dye is obtained which gives a clear blue of very good levelness on wool and silk.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines sauren Farbstoffes der Anthrachinonreihe, dadurch gekennzeichnet, dass man 1-amino-4-brom- arrtbrachinon-2-sulfosaures Natrium mit 2- Aminotoluol-4-sulfonsäuremethyläthanolamid kondensiert. Der so erhaltene Farbstoff liefert auf Wolle und Seide ein klares Blau von sehr guter Egalität. Claim: Process for the preparation of an acidic dye of the anthraquinone series, characterized in that 1-amino-4-bromo-arrtbrachinon-2-sulfonic acid sodium is condensed with 2-aminotoluene-4-sulfonic acid methylethanolamide. The dye thus obtained gives a clear blue of very good levelness on wool and silk. UNTERANSPRUCH: Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man die Reaktionskom ponenten in Gegenwart von Wasser, Natrium- bicarbonat und gupferchlorür unter Rühren bei<B>60-700</B> C erwärmt, bis die Farbstoff bildung beendet ist. SUBSTANTIAL CLAIM: Process according to patent claim, characterized in that the reaction components are heated in the presence of water, sodium bicarbonate and copper chloride with stirring at <B> 60-700 </B> C until the formation of the dye has ended.
CH185589D 1934-04-11 1935-04-10 Process for the preparation of an acidic dye of the anthraquinone series. CH185589A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE185589X 1934-04-11
CH182721T 1935-04-10

Publications (1)

Publication Number Publication Date
CH185589A true CH185589A (en) 1936-07-31

Family

ID=25720783

Family Applications (1)

Application Number Title Priority Date Filing Date
CH185589D CH185589A (en) 1934-04-11 1935-04-10 Process for the preparation of an acidic dye of the anthraquinone series.

Country Status (1)

Country Link
CH (1) CH185589A (en)

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