CH191748A - 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
CH191748A
CH191748A CH191748DA CH191748A CH 191748 A CH191748 A CH 191748A CH 191748D A CH191748D A CH 191748DA CH 191748 A CH191748 A CH 191748A
Authority
CH
Switzerland
Prior art keywords
dye
preparation
chromating
acidic
water
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 CH191748A publication Critical patent/CH191748A/en

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Description

  

  Verfahren zur Darstellung eines sauren     Chromierungsfarbstoifes    der       Antliraehinonreihe.       Gegenstand dieses Zusatzpatentes ist ein  Verfahren zur Darstellung eines sauren     Chro-          mierungsfarbstoffes    der     Anthrachinonreihe,     welches dadurch gekennzeichnet ist, dass  man     1-amino-4-bromanthrachinon-2-sulfo-          saures    Natrium mit     4-Chlor#3-aminobenzyl-          4'-oxy-3'-car-boxyphenylsulfon    kondensiert.  



  <I>Beispiel:</I>  20 Gewichtsteile     1-amino-4-bromanthra-          chirion-2-sulfosaures    Natrium, 23 Gewichts  teile     4-Chlor-3-auiinobenzyl-4'-oxy-3'-carboxy-          pheriylsulfon,    17     (xewichtsteile    Soda     ealciniert     und 1 Gewichtsteil     Kiipfercblorür    werden in  250 Teilen Wasser so lange unter Rühren  auf 80-90 0 C erwärmt, bis die Farbstoff  bildung beendet ist.

   Die erhaltene blaue Lö  sung wird nach dem     Filtrieren    mit der     15-          fachen    Gewichtsmenge Wasser verdünnt und  durch Zusatz von verdünnter Salzsäure der  Farbstoff abgeschieden und filtriert.

   Der Fil-         terkuchen        wird        mit    3     %        iger        Salzsäure        gut     ausgewaschen und das so behandelte Produkt  durch Lösen in verdünntem Ammoniak und  Ansäuern mit verdünnter Salzsäure weiter  gereinigt.     Män    erhält ein dunkles kristalli  nisches Pulver, welches sich in Wasser mit  blauer Farbe löst und aus saurer Flotte auf  Wolle schöne blaue Farbtöne liefert. Durch       Nachchromieren    werden     grünstichig    blaue  Töne von ausgezeichneten     Echtheiten    erhalten.



  Process for the preparation of an acidic chromating dye of the anti-liraequinone 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-sulfo-acid sodium with 4-chloro # 3-aminobenzyl-4'-oxy -3'-car-boxyphenyl sulfone condensed.



  <I> Example: </I> 20 parts by weight of 1-amino-4-bromoanthra-chirion-2-sulphonic acid sodium, 23 parts by weight of 4-chloro-3-auiinobenzyl-4'-oxy-3'-carboxypheriylsulphone, 17 (x parts by weight of soda and 1 part by weight of Kiipfercblorür are heated in 250 parts of water with stirring to 80-90 ° C. until the formation of the dye has ended.

   After filtering, the blue solution obtained is diluted with 15 times the amount by weight of water and the dye is separated off by adding dilute hydrochloric acid and filtered.

   The filter cake is washed thoroughly with 3% hydrochloric acid and the product treated in this way is further purified by dissolving it in dilute ammonia and acidifying it with dilute hydrochloric acid. Man receives a dark crystalline powder which dissolves in water with a blue color and, from acidic liquor, produces beautiful blue tones on wool. After chroming, greenish blue shades of excellent fastness properties are obtained.

Claims (1)

PATENTANSPRÜCH: Verfahren zur Darstellung eines sauren Chromierungsfarbstoffes der Antbracbinon- reihe, dadurch gekennzeichnet, dass man 1 amino-4-bromanthrachinon-2-sulfosaures Na trium mit 4-Chloi--3-aminobenzyl-4'-oxy-3'- carboxyphenylsulfon kondensiert. Der so erhaltene Farbstoff bildet ein dunkles kristallines wasserlösliches Pulver, das Wolle aus saurer Flotte in schönen blauen Tönen färbt, die durch Nachchro- mieren in grünstichig blaue Töne von aus gezeichneten Echtheitseigenschaften über gehen. PATENT CLAIM: Process for the preparation of an acidic chromating dye of the antbracbinone series, characterized in that 1 amino-4-bromoanthraquinone-2-sulfonic acid sodium is condensed with 4-chloro - 3-aminobenzyl-4'-oxy-3'-carboxyphenyl sulfone . The dye obtained in this way forms a dark, crystalline, water-soluble powder which dyes wool from acidic liquor in beautiful blue tones which, after chromating, change into greenish blue tones with excellent fastness properties. UNTERANSPRUCH: Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man die Kondensation der Reaktionskomponenten durch Erhitzen in Wasser in Gegenwart von Natriumkar bonat und Kupferchlorür bewirkt. SUBSTANTIAL CLAIM: Process according to patent claim, characterized in that the reaction components are condensed by heating in water in the presence of sodium carbonate and copper chloride.
CH191748D 1934-12-22 1935-12-19 Process for the preparation of an acidic chromating dye of the anthraquinone series. CH191748A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE191748X 1934-12-22
DE231035X 1935-10-23
CH188888T 1935-12-19

Publications (1)

Publication Number Publication Date
CH191748A true CH191748A (en) 1937-06-30

Family

ID=27177764

Family Applications (1)

Application Number Title Priority Date Filing Date
CH191748D CH191748A (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) CH191748A (en)

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