CH145889A - Process for the preparation of a vat dye. - Google Patents

Process for the preparation of a vat dye.

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Publication number
CH145889A
CH145889A CH145889DA CH145889A CH 145889 A CH145889 A CH 145889A CH 145889D A CH145889D A CH 145889DA CH 145889 A CH145889 A CH 145889A
Authority
CH
Switzerland
Prior art keywords
preparation
vat dye
vat
red
carried out
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 CH145889A publication Critical patent/CH145889A/en

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Description

  

  Verfahren zur Darstellung eines     Küpenfarbstoffes.       Gegenstand dieses Patentes ist ein Ver  fahren zur Darstellung eines     Küpenfarbstof-          fes,    welches dadurch gekennzeichnet ist, dass  man das Umsetzungsprodukt aus     Monobrom-          isodibenzpyrenchirron    und     1-Aminoanthraehi-          non    mit einem sauren Kondensationsmittel  erhitzt.  



  <I>Beispiel:</I>       Man    behandelt das Umsetzungsprodukt  aus     Monobromisodibenzpyrenchinon    und     1-          Amirroanthrachinon    mit der zehnfachen     Menge          Natr#iumaluminiumchlorid    während einer hal  ben Stunde bei etwa     1301    C. Nach dem  Zersetzen der Schmelze erhält man einen  Farbstoff, der aus roter     Küpe    auf Baumwolle  rotstickig braune, gut wasch- und chlorechte  Färbungen liefert.



  Process for the preparation of a vat dye. The subject of this patent is a process for the preparation of a vat dye which is characterized in that the reaction product of monobromoisodibenzyrenchirron and 1-aminoanthraquinone is heated with an acidic condensing agent.



  <I> Example: </I> The reaction product of monobromoisodibenzpyrenquinone and 1-amirroanthraquinone is treated with ten times the amount of sodium aluminum chloride for half an hour at about 1301 ° C. After the melt has decomposed, a dye is obtained that comes from a red vat on cotton provides brown, washable and chlorine-fast dyeings with a red embroidery.

Claims (1)

PATENTANSPRÜOH: Verfahren zur Darstellung eines Küpen- farbstoffes, dadurch gekennzeichnet, dass man das Umsetzungsprodukt aus 1Monobromisodi- benzpyrenchinon und 1-Aminoanthrachinon mit einem sauren Kondensationsmittel erhitzt. Der so erhaltene Farbstoff liefert auf Baumwolle, aus roter Küpe rotstickig braune, gut wasch- und chlorechte Färbungen. UNTERANSPRÜCIHE 1. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man Aluminiurrrchlo- rid als Kondensationsmittel verwendet. 2. PATENT APPLICATION: Process for the preparation of a vat dye, characterized in that the reaction product of 1-monobromoisodibenzyrenquinone and 1-aminoanthraquinone is heated with an acidic condensation agent. The dyestuff obtained in this way gives, on cotton, from a red vat, red-emitting brown, washable and chlorinefast dyeings. SUBClaims 1. Process according to claim, characterized in that aluminum chloride is used as the condensing agent. 2. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man die Kondensation in Gegenwart eines Schmelzmittels vor nimmt. 3. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man die Reaktion bei etwa<B>1300</B> ausführt. Process according to claim, characterized in that the condensation is carried out in the presence of a flux. 3. The method according to claim, characterized in that the reaction is carried out at about <B> 1300 </B>.
CH145889D 1928-03-23 1929-03-04 Process for the preparation of a vat dye. CH145889A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE145889X 1928-03-23
CH142159T 1929-03-04

Publications (1)

Publication Number Publication Date
CH145889A true CH145889A (en) 1931-03-15

Family

ID=25714003

Family Applications (1)

Application Number Title Priority Date Filing Date
CH145889D CH145889A (en) 1928-03-23 1929-03-04 Process for the preparation of a vat dye.

Country Status (1)

Country Link
CH (1) CH145889A (en)

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