CH162647A - 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.

Info

Publication number
CH162647A
CH162647A CH162647DA CH162647A CH 162647 A CH162647 A CH 162647A CH 162647D A CH162647D A CH 162647DA CH 162647 A CH162647 A CH 162647A
Authority
CH
Switzerland
Prior art keywords
preparation
anthraquinone
acidic dye
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 CH162647A publication Critical patent/CH162647A/en

Links

Description

  

  Verfahren zur Darstellung eines     sauren        Farbstoffes    der     Anthraehinonreihe.       Gegenstand des vorliegenden Zusatzpa  tentes ist ein Verfahren zur Darstellung eines  sauren     Farbstoffes    der     Anthrachinonreihe,     welches dadurch gekennzeichnet ist, dass man       1-amino-4-halogenanthrachinon-2-sulfonsaures     Natrium mit     m-Aminobenzoesäure-äthanolamid     zur Umsetzung bringt.  



       Beispiel:     10 Gewichtsteile     1-amino-4-bromanthra-          chinon-2-sulfosaures    Natrium werden mit 7  Gewichtsteilen     m-Aminobenzoesäure-äthanol-          amid    in Gegenwart von 2 Gewichtsteilen  Natriumkarbonat, 0,5 Gewichtsteilen Kupfer  chlorür und 60 Gewichtsteilen Wasser unter  Rühren 5 Stunden auf<B>60-700</B> erhitzt. Der  gebildete blaue Farbstoff wird durch Aus  salzen abgeschieden und durch     Umlösen    aus  Wasser und erneutes     Aussalzen    gereinigt.  



  Der so erhaltene Farbstoff stellt nach  dem Trocknen ein blaues Pulver dar; er färbt  Wolle aus saurem Bade in blauen Tönen von  guten     Echtheitseigenschaften.  



  Process for the preparation of an acidic dye of the anthraquinone series. The subject of the present Zusatzpa tentes is a process for the preparation of an acidic dye of the anthraquinone series, which is characterized in that 1-amino-4-halogenanthraquinone-2-sulfonic acid sodium is reacted with m-aminobenzoic acid ethanolamide.



       Example: 10 parts by weight of 1-amino-4-bromoanthraquinone-2-sulfonic acid sodium are mixed with 7 parts by weight of m-aminobenzoic acid-ethanol amide in the presence of 2 parts by weight of sodium carbonate, 0.5 parts by weight of copper chloride and 60 parts by weight of water with stirring for 5 hours heated to <B> 60-700 </B>. The blue dye formed is deposited by salting out and purified by dissolving from water and salting out again.



  The dyestuff thus obtained is a blue powder after drying; it dyes wool from an acid bath in blue shades with good fastness properties.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines sauren Farbstoffes der Anthrachinonreihe, dadurch gekennzeichnet, dass man 1-amino-4-halogen- anthrachinon-2-sulfosaures Natrium mit m Aminobenzoesäure-äthaiiolamid zur Umsetzung bringt. Der so erhaltene Farbstoff stellt nach dem Trocknen ein blaues Pulver dar; er färbt Wolle aus saurem Bade in blauen Tönen von guten Echtheitseigenschaften. UNTERANSPR üCHE 1. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man 1-amino-4-brom- anthrachinon-2-sulfosaures Natrium ver wendet. 2. PATENT CLAIM: Process for the preparation of an acidic dye of the anthraquinone series, characterized in that 1-amino-4-halo-anthraquinone-2-sulfonic acid sodium is reacted with m aminobenzoic acid ethaiiolamide. The dyestuff thus obtained is a blue powder after drying; it dyes wool from an acid bath in blue shades with good fastness properties. SUB-CLAIMS 1. The method according to claim, characterized in that 1-amino-4-bromo-anthraquinone-2-sulfonic acid sodium is used. 2. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man die Umsetzung durch Erhitzen in Gegenwart von Wasser, Natriumkarbonat und einer kleinen Menge von Kupferchlorür ausführt. Process according to claim, characterized in that the reaction is carried out by heating in the presence of water, sodium carbonate and a small amount of copper chloride.
CH162647D 1931-04-16 1932-03-19 Process for the preparation of an acidic dye of the anthraquinone series. CH162647A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE162647X 1931-04-16
CH158543T 1932-03-19

Publications (1)

Publication Number Publication Date
CH162647A true CH162647A (en) 1933-06-30

Family

ID=25717120

Family Applications (1)

Application Number Title Priority Date Filing Date
CH162647D CH162647A (en) 1931-04-16 1932-03-19 Process for the preparation of an acidic dye of the anthraquinone series.

Country Status (1)

Country Link
CH (1) CH162647A (en)

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