CH124681A - Process for the preparation of a vat dye of the anthraquinone series. - Google Patents

Process for the preparation of a vat dye of the anthraquinone series.

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Publication number
CH124681A
CH124681A CH124681DA CH124681A CH 124681 A CH124681 A CH 124681A CH 124681D A CH124681D A CH 124681DA CH 124681 A CH124681 A CH 124681A
Authority
CH
Switzerland
Prior art keywords
preparation
dye
anthraquinone series
vat dye
blue
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 CH124681A publication Critical patent/CH124681A/en

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

Description

  

  Verfahren zur Darstellung eines     Küpenfar        bstoffes    der     Anthrachinonreihe.       Gegenstand dieses Patentes ist ein Ver  fahren zur Darstellung eines     Küpenfarbstof-          fes    der     Antlirachinonreihe,    dadurch gekenn  zeichnet, dass man     6-Phenoxybenzanthronyl-          Bz-l-phenylaether    mit alkalischen Konden  sationsmitteln mit oder ohne Verdünnungs  mittel behandelt.  



       Beispiel:     1 Gewichtsteil     6-Phenoxybenzanthronyl-          Bz-l-phenylaether,    .der durch längere Ein  wirkung von Phenol auf     Dibrombenzanthron     (hergestellt nach dem Beispiel 4 -der     Iranrö-          sischen    Patentschrift 6719, 9.

   Zusatz     zum     französischen Patent<B>349531)</B>     erbaltes,        vlrd     und     idessen        Lösungsfarbe        in    konzentrierter  Schwefelsäure zunächst blaugrün ist,     beine     Stehen jedoch bald in     violettrot    übergeht,  wird mit 5 Gewichtsteilen     Ätzkali    und 5       Raumteilen    Alkohol gut verrührt und lang  sam     auf    230-240   erhitzt. Durch Aus  laugen mit Wasser wird der erhaltenen  Schmelze der Farbstoff in Form seiner Leu-         koverbindung    entzogen.

   Nach dem Ausbla  sen mit Luft wird     ,der    Farbstoff einer Reine..       gong    durch     Umlösen    aus konzentrierter       Schwefelsäure    unterzogen. Der     in    guter Aus  beute erhaltene Farbstoff stellt ein fast  schwarzes Pulver dar, färbt Baumwolle aus  blauer     Küpe        rotstichigblau    und löst sich in  konzentrierter Schwefelsäure mit olivgrüner       Faxbe.  



  Process for the preparation of a vat dye of the anthraquinone series. The subject of this patent is a process for the preparation of a vat dye of the antlirachinone series, characterized in that 6-phenoxybenzanthronyl-Bz-1-phenyl ether is treated with alkaline condensation agents with or without a diluent.



       Example: 1 part by weight of 6-phenoxybenzanthronyl-Bz-1-phenylaether, which is produced by prolonged action of phenol on dibromobenzanthrone (prepared according to Example 4 of the Iranian patent 6719, 9.

   Addition to the French patent <B> 349531) </B> erbaltes, vlrd and id whose solution color in concentrated sulfuric acid is initially blue-green, but when standing, it soon turns violet-red, is stirred well with 5 parts by weight of caustic potash and 5 parts by volume of alcohol and slowly heated to 230 -240 heated. The dyestuff in the form of its leuco compound is removed from the melt obtained by leaching with water.

   After blowing out with air, the dye is subjected to a pure gong by dissolving it from concentrated sulfuric acid. The dye obtained in good yield is an almost black powder, dyes cotton from a blue vat a reddish blue and dissolves in concentrated sulfuric acid with olive green color.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darst:Alunr eines Kizpen- farb.stoffes der Anthrachinonreihe, dadurch gekennzeichnet, @dass man G-Plienoxybenzan- tlxronyl-B,z-l-phenylaether mit alkalischen Kondensationsmitteln behandelt. Der. Farbstoff stellt ein fast schwarzes Pulver @dar, das sich in konzentrierter Schwe felsäure mit olivgrüner Farbe löst. Er bildet eine blaue Küpe und färbt Baumwolle rot- sticlxip:blau. PATENT CLAIM: Process for the preparation: aluminum of a Kizpen dye of the anthraquinone series, characterized in that G-Plienoxybenzantlxronyl-B, z-l-phenyl ether is treated with alkaline condensing agents. The. Dye is an almost black powder @ that dissolves in concentrated sulfuric acid with an olive green color. It forms a blue vat and dyes cotton red - sticlxip: blue.
CH124681D 1925-08-26 1926-08-23 Process for the preparation of a vat dye of the anthraquinone series. CH124681A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE124681X 1925-08-26
CH122595T 1926-08-23

Publications (1)

Publication Number Publication Date
CH124681A true CH124681A (en) 1928-02-16

Family

ID=25709911

Family Applications (1)

Application Number Title Priority Date Filing Date
CH124681D CH124681A (en) 1925-08-26 1926-08-23 Process for the preparation of a vat dye of the anthraquinone series.

Country Status (1)

Country Link
CH (1) CH124681A (en)

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