CH145888A - Process for the preparation of a vat dye. - Google Patents

Process for the preparation of a vat dye.

Info

Publication number
CH145888A
CH145888A CH145888DA CH145888A CH 145888 A CH145888 A CH 145888A CH 145888D A CH145888D A CH 145888DA CH 145888 A CH145888 A CH 145888A
Authority
CH
Switzerland
Prior art keywords
preparation
vat
vat dye
dye
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 CH145888A publication Critical patent/CH145888A/en

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  Verfahren zur Darstellung eines     Küpenfarbstoffes.       Gegenstand dieses Patentes ist ein Ver  fahren zur Darstellung eines     Küpenfarbstoffes,     welches dadurch gekennzeichnet ist, dass man  das Umsetzungsprodukt aus 1     Mol.        Tetrachlor-          dibenzpyrenchinon    und 4     Mo1.1-Aminoarithra        -          chinon    mit einem sauren Kondensationsmittel  erhitzt.  



  <I>Beispiel:</I>  Man, verschmilzt 10 Gewichtsteile des  Umsetzungsproduktes aus 1     Mol.        Tetrachlor-          dibenzpyrenchinon    und 4     Mol.        1-Aminoanthra-          chirion    mit 100 Gewichtsteilen     Natriumalu-          miniumchlorid    bei 120-130  ; bis die Farbe  der Schmelze von rot nach rein blau umge  schlagen ist. Nach der Aufarbeitung erhält  man einen Farbstoff, der sich in konzentrier  ter     Schwefelsäure    rein blau löst und aus vio  letter     Küpe    ein sehr farbkräftiges echtes  Braun auf Baumwolle ergibt.



  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 1 mol. Tetrachlorodibenzpyrenquinone and 4 Mo1.1-Aminoarithra - quinone is heated with an acidic condensing agent.



  <I> Example: </I> 10 parts by weight of the reaction product of 1 mole of tetrachlorodibenzpyrenquinone and 4 moles of 1-aminoanthrachirion are fused with 100 parts by weight of sodium aluminum chloride at 120-130; until the color of the melt has changed from red to pure blue. After working up, a dye is obtained that dissolves in concentrated sulfuric acid in a pure blue color and turns vio letter vat into a very strong, real brown on cotton.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines Küpen- farbstoffes, dadurch gekennzeichnet, dass man das Umsetzungsprodukt aus 1 Mol. Tetra chlordibenzpyrenchinon und 4 Hol. 1-Amino- anthrachinon reit einem sauren 1Zondensatiorrs- mittel erhitzt. Der so erhaltene Farbstoff löst sich in konzentrierter Schwefelsäure rein blau und ergibt aus violetter Küpe ein sehr farbkräfti- ges, echtes Braun auf Baumwolle. <B>UNTERANSPRÜCHE:</B> 1. PATENT CLAIM: Process for the preparation of a vat dye, characterized in that the reaction product of 1 mol. Tetra chlorodibenzpyrenquinone and 4 Hol. 1-Amino-anthraquinone is heated with an acidic condenser. The dye obtained in this way dissolves in concentrated sulfuric acid in a pure blue color and turns a violet vat into a very strong, true brown on cotton. <B> SUBClaims: </B> 1. Verfahren nach PateritarIspr-uch, dadurch gekennzeichnet, dass man Aluminiumchlorid als Kondensationsmittel verwendet. 2. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man die Konden sation in Gegenwart eines Schmelzmittels vornimmt. 3. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man die Reaktion bei 120-130 ausführt. Method according to the PateritarIspr-uch, characterized in that aluminum chloride is used as the condensing agent. 2. The method 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 120-130.
CH145888D 1928-03-23 1929-03-04 Process for the preparation of a vat dye. CH145888A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE145888X 1928-03-23
CH142159T 1929-03-04

Publications (1)

Publication Number Publication Date
CH145888A true CH145888A (en) 1931-03-15

Family

ID=25714002

Family Applications (1)

Application Number Title Priority Date Filing Date
CH145888D CH145888A (en) 1928-03-23 1929-03-04 Process for the preparation of a vat dye.

Country Status (1)

Country Link
CH (1) CH145888A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2603644A (en) * 1948-10-01 1952-07-15 Saftien Karl Vat dyestuffs of the pyranthrone series

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2603644A (en) * 1948-10-01 1952-07-15 Saftien Karl Vat dyestuffs of the pyranthrone series

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