CH174895A - Process for the production of a new vat dye. - Google Patents

Process for the production of a new vat dye.

Info

Publication number
CH174895A
CH174895A CH174895DA CH174895A CH 174895 A CH174895 A CH 174895A CH 174895D A CH174895D A CH 174895DA CH 174895 A CH174895 A CH 174895A
Authority
CH
Switzerland
Prior art keywords
production
new
vat dye
dye
new 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 CH174895A publication Critical patent/CH174895A/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)
  • Coloring (AREA)

Description

  

      Zusatzpatent    zum Hauptpatent Nr. 172735.    Verfahren zur Herstellung eines neuen     liüpenfarbstofäes.       Es wurde gefunden, dass man einen  neuen     Küpenfarbstoff    erhält, wenn man  4.     6-Dimethyl-5    .     7-dibrom-3-oxythionaphthen     mit dem     2-(p-Dimethylamino)-anil    des     4-Me-          thyl-6-chlor-3-oxythionaphthens    kondensiert.

    Der neue Farbstoff der Formel:  
EMI0001.0009     
    stellt ein     rotviolettes    Pulver dar, das sich  in konzentrierter Schwefelsäure mit     grüner          Farbe    löst und Baumwolle aus braungelb  gefärbter     Küpe    in     beuchechten,    reinen, blau  stichigen     Rosatönen    färbt.  



  <I>Beispiel:</I>  336 Teile 4. 6 -     Dimethyl    - 5. 7 -     dibrom-          3-oxythionaphthen    und 330,5 Teile     2-(p-Di-          methylamino)-anil    des     4-Methyl-6-ehlor-3-          oxythionaphthens    werden mit 4000     Volum-          tei:len    Eisessig auf dem Wasserbade erhitzt,    bis die Kondensation     beendigt    ist. Dann wird  filtriert, gewaschen     und    getrocknet.



      Additional patent to main patent no. 172735. Process for the production of a new liüpenfarbstofäes. It has been found that a new vat dye is obtained if 4. 6-dimethyl-5. 7-dibromo-3-oxythionaphthene condensed with the 2- (p-dimethylamino) anil of 4-methyl-6-chloro-3-oxythionaphthene.

    The new dye of the formula:
EMI0001.0009
    is a red-violet powder that dissolves in concentrated sulfuric acid with a green color and dyes cotton from a brownish-yellow vat in beuchfast, pure, blue-tinged pink tones.



  <I> Example: </I> 336 parts 4.6 - dimethyl - 5. 7 - dibromo-3-oxythionaphthene and 330.5 parts 2- (p-dimethylamino) -anil des 4-methyl-6-chloro -3- oxythionaphthens are heated with 4000 parts by volume of glacial acetic acid on the water bath until the condensation has ended. It is then filtered, washed and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Küpenfarbstoffes, dadurch gekennzeichnet, dass man 4.6-Dimethyl-5.7-dibrom-3-oxy- thionaphthen mit dem 2-(p-Dimethylamino)- anil des 4-Methyl-6-chlor-3-oxythionaphthens kondensiert. Der neue Farbstoff der Formel: EMI0001.0033 stellt ein rotviolettes Pulver dar, das sich in konzentrierter Schwefelsäure mit grüner Farbe löst und Baumwolle aus braungelb gefärbter Küpe in beuchechten, reinen, blau stichigen Rosatönen färbt. PATENT CLAIM: Process for the production of a new vat dye, characterized in that 4.6-dimethyl-5.7-dibromo-3-oxy-thionaphthene is mixed with 2- (p-dimethylamino) anil of 4-methyl-6-chloro-3-oxythionaphthene condensed. The new dye of the formula: EMI0001.0033 is a red-violet powder that dissolves in concentrated sulfuric acid with a green color and dyes cotton from a brownish-yellow vat in beuchfast, pure, blue-tinged pink tones.
CH174895D 1933-09-22 1933-09-22 Process for the production of a new vat dye. CH174895A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH172735T 1933-09-22
CH174895T 1933-09-22

Publications (1)

Publication Number Publication Date
CH174895A true CH174895A (en) 1935-01-31

Family

ID=25719263

Family Applications (1)

Application Number Title Priority Date Filing Date
CH174895D CH174895A (en) 1933-09-22 1933-09-22 Process for the production of a new vat dye.

Country Status (1)

Country Link
CH (1) CH174895A (en)

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