CH157239A - Process for the preparation of an acidic dye. - Google Patents

Process for the preparation of an acidic dye.

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Publication number
CH157239A
CH157239A CH157239DA CH157239A CH 157239 A CH157239 A CH 157239A CH 157239D A CH157239D A CH 157239DA CH 157239 A CH157239 A CH 157239A
Authority
CH
Switzerland
Prior art keywords
preparation
acidic dye
sodium
wool
dye
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 CH157239A publication Critical patent/CH157239A/en

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Description

  

  Verfahren zur Darstellung eines sauren     Farbstoffes.       Gegenstand dieses Zusatzpatentes ist ein  Verfahren zur Darstellung eines sauren Farb  stoffes, dadurch gekennzeichnet, dass man  3' -     Aminobenzophenon    - 4' . 2 -     dicarbonsaures     Natrium mit     1-Amino-4-bromanthrachinon-2-          srrlfosaurem    Natrium kondensiert.  



  <I>Beispiel:</I>  Eine Lösung von 30 Gewichtsteilen     3'-          Aminobenzophenon-4'.        2-dicarbonsäure    in 24  Gewichtsteilen Soda und 380 Gewichtsteilen  Wasser wird mit 30 Gewichtsteilen     1-Amino-          4-bromantbrachinorr-2-sulfosaurem    Natrium  und 1 Gewichtsteil     Kupferchlorür    versetzt.  Nach 24stündigem Rühren bei 95-100  C ist  die     Farbstoffbildung    beendet. Die Isolierung  des     Farbstoffes    erfolgt in der üblichen Weise.  Die Färbung auf Wolle sind rein blau und  besitzen gute Licht-, Wasch- und     Walkechtheit.  



  Process for the preparation of an acidic dye. The subject of this additional patent is a process for the preparation of an acidic dye, characterized in that 3 '- aminobenzophenone - 4'. 2 - sodium dicarboxylic acid condensed with sodium 1-amino-4-bromoanthraquinone-2-srrlfosaurem.



  <I> Example: </I> A solution of 30 parts by weight of 3'-aminobenzophenone-4 '. 2-dicarboxylic acid in 24 parts by weight of soda and 380 parts by weight of water is mixed with 30 parts by weight of sodium 1-amino-4-bromantbrachinorr-2-sulfonic acid and 1 part by weight of copper chloride. After stirring at 95-100 ° C. for 24 hours, the formation of the dye has ended. The dye is isolated in the usual way. The dyeing on wool is pure blue and has good fastness to light, washing and boiling.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines sauren Farbstoffes, dadurch gekennzeichnet, dass man 3'-Aminobenzophenon-4'.2-dicarbocisaures Na trium mit 1-Amino-4-bromanthrachinon-2-sul- fosaurem Natrium kondensiert. Der erhaltene Farbstoff gibt auf Wolle rein blaue Färbungen, die gute Licht-, Wasch- und Walkechtheit besitzen. UNTERANSPRUCH: Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man die Kondensation in wässeriger Lösung in Gegenwart von Natriumcarbonat und einer geringen Menge Kupferchlorür in der Hitze bewirkt. PATENT CLAIM: Process for the preparation of an acidic dye, characterized in that 3'-aminobenzophenone-4'.2-dicarbocic acid sodium is condensed with 1-amino-4-bromoanthraquinone-2-sulphate sodium. The dye obtained gives pure blue dyeings on wool, which are fast to light, washing and milled wool. SUBSTANTIAL CLAIM: Process according to patent claim, characterized in that the condensation is brought about in an aqueous solution in the presence of sodium carbonate and a small amount of copper chloride in the heat.
CH157239D 1930-03-13 1931-03-10 Process for the preparation of an acidic dye. CH157239A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE157239X 1930-03-13
CH153201T 1931-03-10

Publications (1)

Publication Number Publication Date
CH157239A true CH157239A (en) 1932-09-15

Family

ID=25716155

Family Applications (1)

Application Number Title Priority Date Filing Date
CH157239D CH157239A (en) 1930-03-13 1931-03-10 Process for the preparation of an acidic dye.

Country Status (1)

Country Link
CH (1) CH157239A (en)

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