CH165053A - Process for the production of a new vat dye. - Google Patents

Process for the production of a new vat dye.

Info

Publication number
CH165053A
CH165053A CH165053DA CH165053A CH 165053 A CH165053 A CH 165053A CH 165053D A CH165053D A CH 165053DA CH 165053 A CH165053 A CH 165053A
Authority
CH
Switzerland
Prior art keywords
production
new
dye
vat dye
vat
Prior art date
Application number
Other languages
German (de)
Inventor
Gesellschaft Fuer Chemis Basel
Original Assignee
Chem Ind Basel
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 Chem Ind Basel filed Critical Chem Ind Basel
Publication of CH165053A publication Critical patent/CH165053A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B7/00—Indigoid dyes
    • C09B7/10—Bis-thionapthene indigos

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)

Description

  

      Zusatzpatent    zum Hauptpatent     Ni.    163280.         Verfahren    zur Herstellung eines neuen     Küpenfarbstofies.       Es wurde gefunden, dass man einen neuen       Küpenfarbstoff    erhält, wenn man das 4. 7  Dimethyl-3-oxythionaphtheri mit dem 2-(p  Dimethylamirio-)anil des     7-Methyl-3-oxythio-          naphthens    kondensiert und das erhaltene Pro  dukt mit     bromierenden    Mitteln behandelt.  



  Der neue Farbstoff der Formel  
EMI0001.0009     
    stellt ein bordeauxrotes Pulver dar, das sich  in konzentrierter Schwefelsäure mit grüner  Farbe löst und Baumwolle aus gelbgefärbter       Küpe    in bordeauxroten Tönen von vorzüg  licher Echtheit färbt.  



       Beispiel:     178 Teile 4.     7.Dimethyl-3-oxythioiiaphthen     werden mit 296 Teilen 2-(p-Dimethylamirio-)-         anil    des     7-Metliyl-3-oxythionaphthens    in 4000  Teilen Benzol zum Sieden erhitzt. Nach be  endeter     Farbstoffbildung    wird der ausgeschie  dene     Farbstoff        abfiltriert    und getrocknet.  



  16,9 Teile des so erhaltenen     Farbstoffes     werden bei 3-5   in ein Gemisch von 800  Teilen 98     o/oige    Schwefelsäure und 16 Teilen  Brom eingerührt. Hierauf lässt man die Tem  peratur unter Rühren innert 16 Stunden auf  20 o steigen und in weiteren 4 Stunden auf  40  . Man rührt 1/2 Stunde bei 40   und trägt  dann das Reaktionsgemisch unter gutem  Rühren in Eiswasser aus. Nach dem Ab  filtrieren und gutem Auswaschen mit heissem  Wasser wird der     Farbstoff    bei 90-100   ge  trocknet.



      Additional patent to the main patent Ni. 163280. Process for the preparation of a new vat dye. It has been found that a new vat dye is obtained if the 4. 7-dimethyl-3-oxythionaphthene is condensed with the 2- (p-dimethylamirio-) anil of 7-methyl-3-oxythio- naphthene and the product obtained is condensed with brominating Funds treated.



  The new dye in the formula
EMI0001.0009
    is a burgundy red powder that dissolves in concentrated sulfuric acid with a green color and dyes cotton from a yellow-dyed vat in burgundy red shades of excellent fastness.



       Example: 178 parts of 4. 7. Dimethyl-3-oxythioiiaphthen are heated to boiling with 296 parts of 2- (p-dimethylamirio-) - anil des 7-methyl-3-oxythionaphthens in 4000 parts of benzene. After the formation of the dye has ended, the dye which has excreted is filtered off and dried.



  16.9 parts of the dye thus obtained are stirred into a mixture of 800 parts of 98% sulfuric acid and 16 parts of bromine at 3-5. The temperature is then allowed to rise to 20 o in the course of 16 hours with stirring and to 40 in a further 4 hours. The mixture is stirred for 1/2 hour at 40 and then the reaction mixture is poured into ice water with thorough stirring. After filtering and washing thoroughly with hot water, the dye is dried at 90-100.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neue,' Küpenfarbatoffes, dadurch äekennzeichnet, dass man das 4. 7-Dimethyl-3-oxythionaphtheii mit dem 2-(p-Dimethylamino-)anil des 7-Me- thyl-3-oxythionaphthens kondensiert und das erhaltene Produkt mit bromierenden Mitteln behandelt. PATENT CLAIM: Process for the production of a new 'vat colorant, characterized in that the 4. 7-dimethyl-3-oxythionaphthene is condensed with the 2- (p-dimethylamino) anil of 7-methyl-3-oxythionaphthene and that obtained product treated with brominating agents. Der neue Farbstoff der Formel EMI0002.0002 stellt ein bordeauxrotes Pulver dar, das sich in konzentrierter Schwefelsäure mit grüner Farbe löst und Baumwolle aus gelb gefärb ter Küpe in bordeauxroten Tönen von vor züglieher Echtheit färbt. The new dye in the formula EMI0002.0002 represents a burgundy red powder that dissolves in concentrated sulfuric acid with a green color and dyes cotton from a yellow vat in burgundy red tones that are extremely fast.
CH165053D 1932-07-15 1932-07-15 Process for the production of a new vat dye. CH165053A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH165053T 1932-07-15
CH163280T 1932-07-15

Publications (1)

Publication Number Publication Date
CH165053A true CH165053A (en) 1933-10-31

Family

ID=25717740

Family Applications (1)

Application Number Title Priority Date Filing Date
CH165053D CH165053A (en) 1932-07-15 1932-07-15 Process for the production of a new vat dye.

Country Status (1)

Country Link
CH (1) CH165053A (en)

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