CH191760A - 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
CH191760A
CH191760A CH191760DA CH191760A CH 191760 A CH191760 A CH 191760A CH 191760D A CH191760D A CH 191760DA CH 191760 A CH191760 A CH 191760A
Authority
CH
Switzerland
Prior art keywords
dye
preparation
anthraquinone series
chromating
acidic
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 CH191760A publication Critical patent/CH191760A/en

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  Verfahren zur Darstellung eines sauren     Chromierungsfarbstoffes    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-          sulfos.äure    mit     2,4-Diaminodiphenyläther-3'-          oxy-4'-earbonsäurechlorhydrat    kondensiert.

    <I>Beispiel:</I>       33        Gewichtsteile        .2,4-Diaminodiphenyl-          äther=3'-oxy-4'-carbonsäurechlorhydrat,    34       Gewichtsteile        '1-Amino-4-bromanthrachinon-          2-sulfosäure,    22 Gewichtsteile Soda     calc.,          36        Gewichtsteile        Natriumbicarbonat,    2. Ge  wichtsteile     gupferchlorür    werden in 400 Ge  wichtsteilen Wasser     go    lange bei 6,0 bis 70   C  gerührt, bis die Bildung des Farbstoffes be  endet ist.

   Das Kondensationsprodukt wird  durch Einrühren des     Reaktionsgemisches    in  3     %        ige    Salzsäure isoliert und zur     weiteren          Reinigung    in     verdünntem    Ammoniak gelöst  und durch Ansäuern gefällt. Man erhält den       Farbstoff    nach dem Trocknen als     dunkles     Pulver, welches sich in Wasser mit blauer  Farbe löst und auf Wolle blaue Färbungen    liefert, deren Nuance beim     Nachchromieren     in ein Grau von ausgezeichneten     Echtheiten     übergeht.



  Process for the preparation of an acidic chromating 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-sulfonic acid is mixed with 2,4-diaminodiphenyl ether-3'-oxy-4 ' carbonic acid chlorohydrate condensed.

    <I> Example: </I> 33 parts by weight of .2,4-diaminodiphenyl ether = 3'-oxy-4'-carboxylic acid chlorohydrate, 34 parts by weight of 1-amino-4-bromoanthraquinone-2-sulfonic acid, 22 parts by weight of soda calc. , 36 parts by weight of sodium bicarbonate, 2. Ge parts by weight of gupferchlorür are stirred in 400 parts by weight of water at 6.0 to 70 C until the formation of the dye has ended.

   The condensation product is isolated by stirring the reaction mixture into 3% hydrochloric acid and, for further purification, dissolved in dilute ammonia and precipitated by acidification. After drying, the dyestuff is obtained as a dark powder which dissolves in water with a blue color and gives blue dyeings on wool, the shade of which changes to a gray with excellent fastness properties on post-chrome plating.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines sauren Chromierungsfarbstoffes der Antliraehinon- reihe, dadurch gekennzeichnet, dass man 1- Amino-4-bromanthrachinon-2-sulfosäure mit 2,4-Diaminodiphenyläther-3'-oxy-4'-carbon- säurechlorhydrat kondensiert. PATENT CLAIM: Process for the preparation of an acidic chromating dye of the anti-liraequinone series, characterized in that 1-amino-4-bromoanthraquinone-2-sulfonic acid is condensed with 2,4-diaminodiphenyl ether-3'-oxy-4'-carboxylic acid chlorohydrate. Der so erhältliche Farbstoff bildet ein wasserlösliches dunkles Pulver und färbt Wolle in blauen Tönen, die beim NaehcUro- mieren in ein Grau von ausgezeichneten Echtheitseigenschaften übergehen. UNTERANSPRUCH: The dyestuff obtainable in this way forms a water-soluble dark powder and dyes wool in blue tones which, when treated, turn into a gray with excellent fastness properties. SUBClaim: Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass die Kondensation der Reaktionskomponenten durch Erhitzen in Wasser in Gegenwart von Natriumcarbonat, Natriumbicarbonat und gupferchlorür be wirkt wird. Process according to claim, characterized in that the condensation of the reaction components is effected by heating in water in the presence of sodium carbonate, sodium bicarbonate and copper chloride.
CH191760D 1934-12-22 1935-12-19 Process for the preparation of an acidic chromating dye of the anthraquinone series. CH191760A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE191760X 1934-12-22
DE231035X 1935-10-23
CH188888T 1935-12-19

Publications (1)

Publication Number Publication Date
CH191760A true CH191760A (en) 1937-06-30

Family

ID=27177776

Family Applications (1)

Application Number Title Priority Date Filing Date
CH191760D CH191760A (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) CH191760A (en)

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