CH149622A - Process for the preparation of a thiazine dye. - Google Patents

Process for the preparation of a thiazine dye.

Info

Publication number
CH149622A
CH149622A CH149622DA CH149622A CH 149622 A CH149622 A CH 149622A CH 149622D A CH149622D A CH 149622DA CH 149622 A CH149622 A CH 149622A
Authority
CH
Switzerland
Prior art keywords
violet
red
acid
dye
sulfonic acid
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 CH149622A publication Critical patent/CH149622A/en

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  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
  • Nitrogen- Or Sulfur-Containing Heterocyclic Ring Compounds With Rings Of Six Or More Members (AREA)

Description

  

  Verfahren zur Darstellung eines     Thiazinfarbstoffes.       Vorliegendes Patent bezieht sich auf ein Ver  fahren zur Herstellung eines     Thiazinfarbstoffes,     dadurch gekennzeichnet, dass man das Kon  densationsprodukt aus     1.3-Dimethyl-4-amirro-          benzol-6-sulfosäure    und     f-Naphthochinorr-4-          sulfosäure    mit     Schwefelungsmitteln    behandelt.  



  Der Farbstoff ist als freie Säure ein rot  violettes Pulver. In verdünnter Natronlauge  löst er sich mit blauer Farbe, die beim An  säuern irr ein lebhaftes Rotviolett umschlägt.  Wolle wird aus saurein Bade rotviolett ge  färbt. Bei     Nachchromieren    erhält man ein  besonders     gelbstichiges    reines Grün.  



  <I>Beispiel:</I>  18 kg des Kondensationsproduktes aus  1.     3-Dirnethyl-4-aminobenzol-6-sulfosäure    und       f-Naphthochirron-4-sulfosäure    werden in eine  Lösung von 12 kg Schwefel in 250 kg  28     o/oigem        Oleurn    bei 20-30 o eingetragen;  hierauf wird langsam auf 40   erhitzt und  bei dieser Temperatur etwa 4 Stunden ge  rührt. Man giesst die Schmelze auf Eis, fil  triert den ausgeschiedenen     Farbstoff    und  wäscht mit Salzwasser aus.



  Process for the preparation of a thiazine dye. The present patent relates to a process for the preparation of a thiazine dye, characterized in that the condensation product of 1,3-dimethyl-4-amirrobenzene-6-sulfonic acid and f-naphthoquinor-4-sulfonic acid is treated with sulfurizing agents.



  As a free acid, the dye is a red-violet powder. In dilute caustic soda it dissolves with a blue color, which turns a vivid red-violet when acidified. Wool is dyed red-violet from acidic bath. Chromium plating produces a particularly yellowish pure green.



  <I> Example: </I> 18 kg of the condensation product of 1. 3-methyl-4-aminobenzene-6-sulfonic acid and f-naphthochirronic-4-sulfonic acid are dissolved in a solution of 12 kg of sulfur in 250 kg of 28% Oleur added at 20-30 o; it is then slowly heated to 40 and stirred at this temperature for about 4 hours. The melt is poured onto ice, the precipitated dye is filtered off and washed with salt water.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Thiazin- farbstoffes, dadurch gekennzeichnet, dass man das Kondensationsprodukt aus 1.3-Dimethyl- 4-arninobenzol-6-sulfosäure und R-Naphtlro- chinon-4-sulfosäure mit Schwefelungsmitteln behandelt. Der Farbstoff ist als freie Säure ein rot violettes Pulver. In verdünnter Natronlauge löst er sich mit blauer Farbe, die beim An säuern in ein lebhaftes Rotviolett umschlägt. Wolle wird aus saurem Bade rotviolett ge färbt. Claim: Process for the production of a thiazine dye, characterized in that the condensation product of 1,3-dimethyl-4-arninobenzene-6-sulfonic acid and R-naphthroquinone-4-sulfonic acid is treated with sulfurizing agents. As a free acid, the dye is a red-violet powder. In dilute caustic soda it dissolves with a blue color, which turns into a vivid red-violet when acidified. Wool is dyed red-violet from an acid bath. Bei Nachcbromiereti erhält man ein besonders gelbstichiges reines Grün. UNTERANSPRUCH: Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man als Schwefelung5- mittel eine Lösung von Schwefel in rauchen der Schwefelsäure verwendet. With Nachcbromiereti you get a particularly yellowish pure green. SUBSTANTIAL CLAIM: Process according to patent claim, characterized in that a solution of sulfur in smoke of sulfuric acid is used as the sulfurizing agent.
CH149622D 1928-10-10 1929-09-30 Process for the preparation of a thiazine dye. CH149622A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE149622X 1928-10-10
CH145455T 1929-09-30

Publications (1)

Publication Number Publication Date
CH149622A true CH149622A (en) 1931-09-15

Family

ID=25714709

Family Applications (1)

Application Number Title Priority Date Filing Date
CH149622D CH149622A (en) 1928-10-10 1929-09-30 Process for the preparation of a thiazine dye.

Country Status (1)

Country Link
CH (1) CH149622A (en)

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