CH259735A - Process for the production of a lively acidic milled dye of the anthraquinone series. - Google Patents

Process for the production of a lively acidic milled dye of the anthraquinone series.

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Publication number
CH259735A
CH259735A CH259735DA CH259735A CH 259735 A CH259735 A CH 259735A CH 259735D A CH259735D A CH 259735DA CH 259735 A CH259735 A CH 259735A
Authority
CH
Switzerland
Prior art keywords
dye
blue
lively
acidic
production
Prior art date
Application number
Other languages
German (de)
Inventor
Ag Sandoz
Original Assignee
Ag Sandoz
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 Ag Sandoz filed Critical Ag Sandoz
Publication of CH259735A publication Critical patent/CH259735A/en

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Description

  

  Verfahren zur Herstellung eines lebhaften sauren     Walkfarbstoffes    der     Anthraehinonreihe.       Das vorliegende Patent betrifft ein Ver  fahren zur Herstellung eines lebhaften sauren       Walkfarbstoffes    der     Anthrachinonreihe,        we:-          chee    dadurch .gekennzeichnet ist, dass man  auf 1 -     Ämino-4-(2',4',6'-triäthyl-anili.do)-an-          thrachinon-2,8-disulfonsäure    Brom einwirken  lässt.

           Beispiel:     6,0 Teile     1-amino-4-(2',4',6'-triäthyl-ani-          i        lido)-anthrachinon-2,8-disulfonsaures    Natrium  werden bei     Raumtemperatur        unter    Rühren  durch Eintragen in 30 Teile     Schzvefelsä.ure-          monohydrat    gelöst. Hierauf     ilässt    man 1,8  Teile Brom     zutropfen,    rührt über Nacht bei       2'0    bis 30 , erhöht gegebenenfalls die     Tem-          peratur    noch während 3 Stunden auf 6'0 .

   Den       bromierten    Farbstoff arbeitet man auf üb-    liehe Weise auf, sei es durch Giessen de:       Sehwefelsäurelösung    in Eis und Wasser oder  durch fraktionierte Fällung des sauren schwe  felsauren Salzes aus der     Schwefelsäurelösung     mittels Zusatz von wenig Wasser.  



  Der Farbstoff wird in     rotstichib    blauen       Nädelchen    gewonnen, die sich in Wasser mit  leuchtend     grünstichig    blauer Farbe leicht  lösen. Die Farbe der Lösung in konzentrier  ter     Schwefelsäure        ist    schmutzig     rotstichig     blau; beim Zusatz von wenig     Paraformalde-          hyd        schlägt    sie nach leuchtend     rotstichig    blau  um. Der Farbstoff färbt tierische Fasern,  wie Wolle,     Seide    usw., sowie künstliche Fa  sern, z. B.

   Nylon, in leuchtend     rotstichig     blauen Tönen von ausgezeichneten     Echtheiten.       Er besitzt .die Formel  
EMI0001.0038     




  Process for the production of a lively acidic milled dye of the anthraehinone series. The present patent relates to a process for the production of a lively acidic milled dyestuff of the anthraquinone series, which: - chee is characterized by the fact that 1 - Ämino-4- (2 ', 4', 6'-triethyl-anili.do) -anthrachinon-2,8-disulfonic acid bromine to act.

           Example: 6.0 parts of 1-amino-4- (2 ', 4', 6'-triethyl-anilido) -anthraquinone-2,8-disulphonic acid sodium are added at room temperature with stirring to 30 parts of Schzvefelsä. ure monohydrate dissolved. 1.8 parts of bromine are then added dropwise, the mixture is stirred overnight at 2.0 to 30. If necessary, the temperature is increased to 6 0 for a further 3 hours.

   The brominated dye is worked up in the usual way, be it by pouring the sulfuric acid solution into ice and water or by fractional precipitation of the acid sulfuric acid salt from the sulfuric acid solution by adding a little water.



  The dye is obtained in red-tinged blue needles, which dissolve easily in water with a bright green-tinged blue color. The color of the solution in concentrated sulfuric acid is a dirty reddish blue; if a little paraformaldehyde is added, it changes to a bright reddish blue. The dye dyes animal fibers such as wool, silk, etc., as well as artificial fibers such. B.

   Nylon, in bright reddish blue tones with excellent fastness properties. He has the formula
EMI0001.0038

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen lebhaften sauren Walkfarbstoffes der An- thrachinonreihe, dadurch gekennzeichnet, dass man auf 1-Amino-4-(2',4',6'-triäthyl-anilido)- anthrachinon-2,8-disulfonsäure Brom ein wirken lässt. Der Farbstoff stellt rotstichig blaue Nä- delchen dar, die sich in Wasser mit leuch- terLd grünstichi.g blauer Farbe leicht lösen. PATENT CLAIM: Process for the production of a new lively acidic fulling dye of the anthraquinone series, characterized in that 1-amino-4- (2 ', 4', 6'-triethyl-anilido) -anthraquinone-2,8-disulfonic acid bromine one lets work. The dye is reddish-tinged blue needles that easily dissolve in water with a bright green-tinged blue color. Die Farbe der Lösung in konzentrierter Schwefelsäure ist schmutzig rotstichig blau; beim Zusatz von wenig Paraformaldehyd schlägt sie nach leuchtend ratstiohig blau um. Der Farbstoff färbt tierische Fasern, wie Wolle, Seide usw., sowie künstliche Fa sern, z. The color of the solution in concentrated sulfuric acid is a dirty reddish blue; if a little paraformaldehyde is added, it changes to a bright blue color. The dye dyes animal fibers such as wool, silk, etc., as well as artificial fibers such. B. Nylon, in leuchtend, rotstich:g blauen Tönen von ausgezeichneten Echtheiten. Er besitzt die Formel EMI0002.0015 B. Nylon, bright, reddish: g blue shades of excellent fastness properties. He owns the formula EMI0002.0015
CH259735D 1946-07-26 1946-07-26 Process for the production of a lively acidic milled dye of the anthraquinone series. CH259735A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH254809T 1946-07-26
CH259735T 1946-07-26

Publications (1)

Publication Number Publication Date
CH259735A true CH259735A (en) 1949-01-31

Family

ID=25729870

Family Applications (1)

Application Number Title Priority Date Filing Date
CH259735D CH259735A (en) 1946-07-26 1946-07-26 Process for the production of a lively acidic milled dye of the anthraquinone series.

Country Status (1)

Country Link
CH (1) CH259735A (en)

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