CH191757A - 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
CH191757A
CH191757A CH191757DA CH191757A CH 191757 A CH191757 A CH 191757A CH 191757D A CH191757D A CH 191757DA CH 191757 A CH191757 A CH 191757A
Authority
CH
Switzerland
Prior art keywords
dye
preparation
acidic
anthraquinone series
chromating
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 CH191757A publication Critical patent/CH191757A/en

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Chemical Treatment Of Metals (AREA)

Description

  

  Verfahren zur Darstellung eines sauren     Chromierungsfarbstoffes    der     Anthrachinonreihe.       Gegenstand dieses Zusatzpatentes ist ein  Verfahren zur Darstellung eines sauren     Chro-          mierungsfarbstoffes    der     Anthrachinonreihe,          ,welches    dadurch gekennzeichnet ist,     daB     man     1-amino-4-bromanthra.chinon-2-sulfosau-          res    Natrium mit     4-Amino-4'-oxyazobenzol-3'-          earbonsäure    kondensiert.

      <I>Beispiel:</I>  16 Gewichtsteile     1-a-mino-4-bromantlira-          ehinon-2-sulfosaures    Natrium,     13:        Gewichts-          teile        4-Amino-4'-oxyazobenzol-3'-carbonsäure,     10     Gewichtsteile    Soda     oalciniert,    1 Gewichts  teil     Kupferehlorür    werden in     2;50        Gewichts-          teilen    Wasser bis zur Beendigung der Um  setzung zum Sieden erhitzt.

   Man säuert :dann  das Reaktionsprodukt mit     verdünnter    Salz  säure an, erwärmt kurze Zeit auf<B>80'</B> C,  saugt ab und wäscht :den Filterkuchen mit  verdünnter Salzsäure nach.     Beim    Lösen in       verdünnter        Sodalösung    oder     Ammoniak    er  hält man eine grüne Lösung, aus     welcher,der     Farbstoff durch     Aussalzen    isoliert wird. Das  Produkt färbt Wolle     aus    saurer Flotte in    grünen Tönen, welche in     ihren        Echtheiten     durch     Nachchromieren    verbessert werden.



  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-sulfoacid is sodium with 4-amino-4'-oxyazobenzene 3'-carbonic acid condensed.

      <I> Example: </I> 16 parts by weight of 1-a-mino-4-bromantlira-ehinon-2-sulfonic acid sodium, 13: parts by weight of 4-amino-4'-oxyazobenzene-3'-carboxylic acid, 10 parts by weight of soda Calcined, 1 part by weight of copper chlorine is heated to boiling in 2; 50 parts by weight of water until the reaction has ended.

   It is acidified: then the reaction product is acidified with dilute hydrochloric acid, heated to <B> 80 '</B> C for a short time, filtered off with suction and washed: the filter cake with dilute hydrochloric acid. When dissolving in dilute soda solution or ammonia, you get a green solution, from which the dye is isolated by salting out. The product dyes wool from acidic liquor in green tones, the fastness of which is improved by post-chrome plating.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines sauren Chromierungsfarbstoffes der Anthrachinon- reihe, dadurch .gekennzeichnet, dass man 1- amino-4-bromanthracliinon-2-sulfosaures Na trium mit 4-Amino-4'-oxyazobenzol-:3'-car- bonsäure kondensiert. Der so erhaltene Farbstoff färbt Wolle aus saurer Flotte in grünen Tönen, : PATENT CLAIM: Process for the preparation of an acidic chromating dye of the anthraquinone series, characterized in that 1-amino-4-bromoanthracliinone-2-sulfonic acid sodium is condensed with 4-amino-4'-oxyazobenzene-: 3'-carboxylic acid . The dye obtained in this way dyes wool from acidic liquor in green shades: die durch Nachchromieren in ihren Echtheitseigen schaften verbessert werden. UNTERANSPRUCH: Verfahren nach Patentanspruch, .dadurch gekennzeichnet, dass man die Kondensation .der Reaktionskomponenten :durch Erhitzen in Wasser in Gegenwart von Natriumcarbonat und Kupferchlorür bewirkt. the authenticity properties are improved by re-chrome plating. SUBCLAIM: Process according to patent claim, characterized in that the condensation of the reaction components is effected by heating in water in the presence of sodium carbonate and copper chloride.
CH191757D 1934-12-22 1935-12-19 Process for the preparation of an acidic chromating dye of the anthraquinone series. CH191757A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE191757X 1934-12-22
DE231035X 1935-10-23
CH188888T 1935-12-19

Publications (1)

Publication Number Publication Date
CH191757A true CH191757A (en) 1937-06-30

Family

ID=27177773

Family Applications (1)

Application Number Title Priority Date Filing Date
CH191757D CH191757A (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) CH191757A (en)

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