CH157247A - Process for the preparation of a vat dye. - Google Patents

Process for the preparation of a vat dye.

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Publication number
CH157247A
CH157247A CH157247DA CH157247A CH 157247 A CH157247 A CH 157247A CH 157247D A CH157247D A CH 157247DA CH 157247 A CH157247 A CH 157247A
Authority
CH
Switzerland
Prior art keywords
weight
parts
preparation
vat dye
product obtained
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 CH157247A publication Critical patent/CH157247A/en

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Description

  

      Verfahren        zur        Darstellung        eines        Küpenfarbstofes.       Gegenstand der vorliegenden Erfindung  ist ein Verfahren zur Darstellung eines       güpenfarbstoffes,    dadurch gekennzeichnet,  dass man ein Hol 4.     8-Diaminoanthraehinon-          1        .2-akridon    mit 2 Hol     1-Chloranthrachinon     umsetzt und das erhaltene Produkt mit einem       carbazolierenden    Mittel behandelt.  



  <I>Beispiel:</I>  50 Gewichtsteile     4.8-Diaminoanthrachi-          non-1.        2-akridon    (erhältlich aus     1-Chlor-4.        8-          diaminoanthrachinon    und     Anthranilsäure)     werden mit 70 Gewichtsteilen     1-Chlorantbra-          chinon,    50 Gewichtsteilen     Natriumacetat,    10  Gewichtsteilen     Magnesiumogyd,    2 Gewichts  teilen Kupferpulver und 2 Gewichtsteilen  Kupferchlorid in<B>1000</B> Gewichtsteilen Naph  thalin einige Stunden zum Sieden erhitzt.

    Nach beendigter Reaktion wird mit     Toluol     verdünnt und abgesaugt und das Reaktions  produkt mit verdünnter Salzsäure ausgekocht.    5 Gewichtsteile des so erhaltenen Kon  densationsproduktes werden mit 20 Gewichts  teilen Aluminiumchlorid in 50 Gewichtsteilen       Pyridin    kurze Zeit auf l20-130   erhitzt,  bis sich eine aufgearbeitete Probe in kon  zentrierter Schwefelsäure violett löst. Die  Schmelze wird nun in eine Lösung von 50  Gewichtsteilen     Ätznatron    in 400 Gewichts  teilen Wasser eingerührt. 100     cm3    Chlorlauge  werden zugefügt und dann das     Pyridin    mit  Wasserdampf abgetrieben. Das erhaltene Pro  dukt stellt ein oliv gefärbtes Pulver dar, das  sich in Schwefelsäure violett löst.

   Baumwolle  wird aus gelbbrauner     Küpe    sehr kräftig in       gelbatichig    oliven Tönen von vorzüglicher  Echtheit angefärbt.



      Process for the preparation of a vat dye. The present invention relates to a process for the preparation of a liquid dye, characterized in that a Hol 4. 8-Diaminoanthraehinon-1,2-akridon is reacted with 2 Hol 1-chloroanthraquinone and the product obtained is treated with a carbazolating agent.



  <I> Example: </I> 50 parts by weight of 4.8-diaminoanthraquinone-1. 2-akridon (obtainable from 1-chloro-4. 8-diaminoanthraquinone and anthranilic acid) are mixed with 70 parts by weight of 1-chloranthabraquinone, 50 parts by weight of sodium acetate, 10 parts by weight of magnesium oxide, 2 parts by weight of copper powder and 2 parts by weight of copper chloride in <B> 1000 < / B> parts by weight of naphthalene heated to boiling for a few hours.

    After the reaction has ended, it is diluted with toluene and filtered off with suction and the reaction product is boiled with dilute hydrochloric acid. 5 parts by weight of the condensation product thus obtained are briefly heated to 120-130 with 20 parts by weight of aluminum chloride in 50 parts by weight of pyridine until a worked-up sample dissolves violet in concentrated sulfuric acid. The melt is then stirred into a solution of 50 parts by weight of caustic soda in 400 parts by weight of water. 100 cm3 of sodium chloride solution are added and then the pyridine is driven off with steam. The product obtained is an olive-colored powder that dissolves violet in sulfuric acid.

   Cotton is dyed from a yellow-brown vat very vigorously in yellowish olive tones of excellent fastness.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines Küpen- farbstoffes, dadurch gekennzeichnet, dass man 1 Hol 4.8-Diaminoanthrachinon-1.2-akridon mit 2 lylol 1-Chloranthrachinon umsetzt und das erhaltene Produkt mit einem karbazolie- renden Mittel behandelt. Das erhaltene Produkt stellt ein oliv ge färbtes Pulver dar, das sich in Schwefelsäure violett löst. Baumwolle wird aus gelbbrauner güpe sehr kräftig in gelbstickig oliven Tönen von vorzüglicher Echtheit angefärbt. Claim: Process for the preparation of a vat dye, characterized in that 1 hol of 4,8-diaminoanthraquinone-1,2-acridone is reacted with 2-lylene 1-chloroanthraquinone and the product obtained is treated with a carbazolizing agent. The product obtained is an olive-colored powder which dissolves violet in sulfuric acid. Cotton is dyed from yellow-brown güpe very vigorously in yellowish olive tones of excellent fastness.
CH157247D 1930-02-28 1931-02-25 Process for the preparation of a vat dye. CH157247A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE157247X 1930-02-28
CH153831T 1931-02-25

Publications (1)

Publication Number Publication Date
CH157247A true CH157247A (en) 1932-09-15

Family

ID=25716324

Family Applications (1)

Application Number Title Priority Date Filing Date
CH157247D CH157247A (en) 1930-02-28 1931-02-25 Process for the preparation of a vat dye.

Country Status (1)

Country Link
CH (1) CH157247A (en)

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