CH134945A - Process for the preparation of a nitrogenous vat dye. - Google Patents

Process for the preparation of a nitrogenous vat dye.

Info

Publication number
CH134945A
CH134945A CH134945DA CH134945A CH 134945 A CH134945 A CH 134945A CH 134945D A CH134945D A CH 134945DA CH 134945 A CH134945 A CH 134945A
Authority
CH
Switzerland
Prior art keywords
preparation
works
nitrogenous
vat dye
vat
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 CH134945A publication Critical patent/CH134945A/en

Links

Landscapes

  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  Verfahren zur Darstellung eines stickstoffhaltigen     Küpenfarbstoffes.       Es wurde gefunden, dass man einen neuen,  wertvollen, stickstoffhaltigen     Küpenfarbstoff     erhält, wenn man     Monohalogendibenzanthron     hergestellt durch     Halogenieren    von     Dibenz-          anthron    in saurer Lösung mit     1-Aminoanthra-          chinon    umsetzt. Hierbei kann man in Gegen  wart von Verdünnungsmitteln,     Katalysätoren     und säurebindenden Mitteln arbeiten.  



  Der neue Farbstoff löst sich in konzen  trierter Schwefelsäure mit violetter Farbe  und liefert auf Baumwolle aus violetter     Küpe     blaugraue bis blauschwarze, hervorragend  echte Färbungen, deren vorzügliche     Wasch-          und        Beuchechtheit    besonders zu erwähnen  ist, und die beim Befeuchten mit Wasser  ihre Farbe nicht ändern. .

      <I>Beispiel:</I>  53,5 Teile     Monobromdibenzanthron    herge  stellt durch     Bromieren    von     Dibenzanthron    in       Chlorsulfonsäure    werden in 1000 Teilen  Nitrobenzol mit 40 Teilen     Natriumacetat,       7 Teilen     Kupferoxyd    und 25 Teilen     1-Amino-          anthrachinon    solange unter Rühren gekocht,  bis die     Farbstoffbildung    beendet ist. Dann  saugt man ab, kocht den Rückstand mit  verdünnter Säure und Wasser aus und  trocknet.



  Process for the preparation of a nitrogenous vat dye. It has been found that a new, valuable, nitrogen-containing vat dye is obtained if monohalodibenzanthrone prepared by halogenating dibenzanthrone in acidic solution is reacted with 1-aminoanthraquinone. You can work in the presence of diluents, catalysts and acid-binding agents.



  The new dye dissolves in concentrated sulfuric acid with a violet color and produces blue-gray to blue-black, exceptionally real dyeings on cotton from a violet vat, whose excellent wash and touch fastness deserves special mention and which do not change color when moistened with water. .

      <I> Example: </I> 53.5 parts of monobromodibenzanthrone produced by brominating dibenzanthrone in chlorosulfonic acid are boiled with stirring in 1000 parts of nitrobenzene with 40 parts of sodium acetate, 7 parts of copper oxide and 25 parts of 1-amino anthraquinone until the Dye formation is complete. It is then filtered off with suction, the residue is boiled with dilute acid and water and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines stickstoff haltigen Küpenfarbstoffes, dadurch gekenn zeichnet, dass man Monohalogendibenzanthron, hergestellt durch Halogenieren von Diben- zanthron in saurer Lösung mit 1-Aminoanthra- chinon umsetzt. PATENT CLAIM: Process for the preparation of a nitrogen-containing vat dye, characterized in that monohalodibenzanthrone, produced by halogenating dibenzanthrone in acidic solution, is reacted with 1-aminoanthraquinone. Der neue Farbstoff löst sich in konzen trierter Schwefelsäure mit violetter Farbe und liefert auf Baumwolle aus violetter Küpe blaugraue bis blauschwarze, hervorragend echte Färbungen, deren vorzügliche Wasch echtheit und Beuchechtheit besonders zu er wähnen ist, und die beim Befeuchten mit Wasser ihre Farbe nicht ändern. UNTERANSPR t?CHE 1. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man in Gegenwart von Verdünnungsmitteln arbeitet. 2. Verfahren nach Patentanspruch und Un teranspruch 1, dadurch gekennzeichnet, dass man in Gegenwart von Katalysatoren arbeitet. The new dye dissolves in concentrated sulfuric acid with a violet color and delivers blue-gray to blue-black, extremely real dyeings on cotton from a violet vat, whose excellent washfastness and touchfastness are particularly worth mentioning and which do not change their color when moistened with water. SUB-CLAIM 1. The method according to claim, characterized in that one works in the presence of diluents. 2. The method according to patent claim and un teran claim 1, characterized in that one works in the presence of catalysts. 3. Verfahren nach Patentanspruch und Un teransprüchen 1 und 2, dadurch gekenn zeichnet, dass man in Gegenwart von säurebindenden Mitteln arbeitet. 3. The method according to claim and un terclaims 1 and 2, characterized in that one works in the presence of acid-binding agents.
CH134945D 1927-06-09 1928-06-01 Process for the preparation of a nitrogenous vat dye. CH134945A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE134945X 1927-06-09

Publications (1)

Publication Number Publication Date
CH134945A true CH134945A (en) 1929-08-31

Family

ID=5665743

Family Applications (1)

Application Number Title Priority Date Filing Date
CH134945D CH134945A (en) 1927-06-09 1928-06-01 Process for the preparation of a nitrogenous vat dye.

Country Status (1)

Country Link
CH (1) CH134945A (en)

Similar Documents

Publication Publication Date Title
CH134945A (en) Process for the preparation of a nitrogenous vat dye.
CH136838A (en) Process for the preparation of a vat dye.
CH136836A (en) Process for the preparation of a vat dye.
CH136841A (en) Process for the preparation of a vat dye.
CH136839A (en) Process for the preparation of a vat dye.
CH136835A (en) Process for the preparation of a vat dye.
CH136840A (en) Process for the preparation of a vat dye.
CH138878A (en) Process for the preparation of a new, nitrogenous vat dye.
CH127445A (en) Process for the preparation of a stain dye.
CH140012A (en) Process for the preparation of a strongly basic azo dye.
CH97361A (en) Process for the preparation of a condensation product of the anthraquinone series which can be used as dye and dye intermediate.
CH139661A (en) Process for the preparation of a nitrogenous vat dye.
CH143591A (en) Process for the preparation of a stain-coloring disazo dye.
CH137656A (en) Process for the preparation of a valuable vat dye.
CH136842A (en) Process for the preparation of a vat dye.
CH142059A (en) Process for the preparation of a vat dye.
CH119899A (en) Process for the production of a new dye.
CH137399A (en) Process for the preparation of a nitrogenous vat dye.
CH211838A (en) Process for the preparation of an azo dye.
CH136837A (en) Process for the preparation of a vat dye.
CH194084A (en) Process for the preparation of an o-oxyazo dye.
CH135388A (en) Process for the production of a new azo dye.
CH117996A (en) Process for the production of a new dye.
CH136843A (en) Process for the preparation of a vat dye.
CH122907A (en) Process for the preparation of a developer dye.