CH191749A - 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
CH191749A
CH191749A CH191749DA CH191749A CH 191749 A CH191749 A CH 191749A CH 191749D A CH191749D A CH 191749DA CH 191749 A CH191749 A CH 191749A
Authority
CH
Switzerland
Prior art keywords
dye
preparation
chromating
condensed
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 CH191749A publication Critical patent/CH191749A/en

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Description

  

  Verfahren zur Darstellung eines sauren     Chromiernngsfarbstoffes    der       Anthrachinonreihe.       Gegenstand dieses Zusatzpatentes ist ein  Verfahren zur Darstellung eines sauren     Chro-          mierungsfarbstoffes    der     Authrachinonreihe,     welches dadurch gekennzeichnet ist, dass  man     1-amino-4-bromanthrachinon-2-sulfo-          saures    Natrium mit     3-Amirrobenzyl-4'-oxy-3'          carboxyphenylsulforr    kondensiert.  



  <I>Beispiel:</I>  40 Gewichtsteile 1-     amino-4-bromanthra-          chinon-2-sulfosaures    Natrium, 33 Gewichts  teile     3-Amirrobenzyl-4'-oxy-3'-carboxypherryl-          sulfon,        35    Gewichtsteile Soda     calciniert,    20       GewiclrtsteileNatriumbikarbonat,    2 Gewichts  teile     Kupferchlorür    werden in 400 Teilen  Wasser bis zur Beendigung der Kondensation  bei 80-90o gerührt. Nach Erkalten des Ge  misches giesst man dasselbe in zirka 2000       Volumteile    10     o/oige    Kochsalzlösung ein, saugt  ab und wäscht den Filterrückstand mit  Kochsalzlösung aus.

   Die Reinigung des Farb-         stoffes    erfolgt durch Lösen in verdünntem       wässrigem    Ammoniak und darauffolgendes       Aussalzen    mit Kochsalz oder Ansäuern mit  verdünnter Salzsäure. Der reine Farbstoff,  ein dunkelblaues Pulver, löst sich mit blauer  Farbe in Wasser und zieht aus saurem Bade  in     rotstichig    blauen Tönen auf. Durch     Nach-          chromieren    erhält man echte     rotstichig    blaue  Farbtöne.



  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 authraquinone series, which is characterized in that 1-amino-4-bromoanthraquinone-2-sulfo-acid sodium with 3-amirrobenzyl-4'-oxy-3 'carboxyphenylsulfur condensed.



  <I> Example: </I> 40 parts by weight of 1- amino-4-bromoanthraquinone-2-sulphonic acid sodium, 33 parts by weight of 3-amirrobenzyl-4'-oxy-3'-carboxypherryl sulphone, 35 parts by weight of calcined soda, 20 parts by weight of sodium bicarbonate and 2 parts by weight of copper chloride are stirred in 400 parts of water at 80-90 ° until condensation has ended. After the mixture has cooled down, it is poured into about 2000 parts by volume of 10% saline solution, suctioned off and the filter residue is washed out with saline solution.

   The dye is cleaned by dissolving it in dilute aqueous ammonia and then salting it out with common salt or acidifying it with dilute hydrochloric acid. The pure dye, a dark blue powder, dissolves in water with a blue color and absorbs reddish blue tones from an acid bath. After chroming you get real reddish blue shades.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines sauren Chromierungsfarbstoffes der Antbrachinon- reihe, dadurch gekennzeichnet, dass man 1 amino-4-bromantbrachinon-2-sulfosaures Na trium mit 3-Aminobenzyl-4'-oxy-3'-carboxy- phenyIsulfon kondensiert. Der so erhaltene Farbstoff bildet ein dunkelblaues wasserlösliches Pulver und färbt Wolle aus saurem Bade in rotstichig blauen Tönen, die durch Nachchromieren in ihren Echtheitseigenschaften verbessert werden. Claim: Process for the preparation of an acidic chromating dye of the antbrachinone series, characterized in that 1 amino-4-bromantbrachinone-2-sulfonic acid sodium is condensed with 3-aminobenzyl-4'-oxy-3'-carboxy-phenyl sulfone. The dye obtained in this way forms a dark blue water-soluble powder and dyes wool from an acid bath in reddish-tinged blue tones, the fastness properties of which are improved by subsequent chrome plating. UNTERANSPRUCH: Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man die Kondensation der Reaktionskomponenten durch Erhitzen in Wasser in Gegenwart von Natriumkar bonat, Natriumbikarbonat und gupferchlorür bewirkt. SUBCLAIM: Process according to claim, characterized in that the reaction components are condensed by heating in water in the presence of sodium carbonate, sodium bicarbonate and copper chloride.
CH191749D 1934-12-22 1935-12-19 Process for the preparation of an acidic chromating dye of the anthraquinone series. CH191749A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE191749X 1934-12-22
DE231035X 1935-10-23
CH188888T 1935-12-19

Publications (1)

Publication Number Publication Date
CH191749A true CH191749A (en) 1937-06-30

Family

ID=27177765

Family Applications (1)

Application Number Title Priority Date Filing Date
CH191749D CH191749A (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) CH191749A (en)

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