CH174902A - Process for the production of a new vat dye. - Google Patents

Process for the production of a new vat dye.

Info

Publication number
CH174902A
CH174902A CH174902DA CH174902A CH 174902 A CH174902 A CH 174902A CH 174902D A CH174902D A CH 174902DA CH 174902 A CH174902 A CH 174902A
Authority
CH
Switzerland
Prior art keywords
production
dimethyl
new
vat dye
dye
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 CH174902A publication Critical patent/CH174902A/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

  

  <B>Zusatzpatent</B> zum     Hauptpatent    Nr.<B>172735.</B>    Verfahren zur Herstellung eines neuen-     Küpenfarbstoffes.       Es wurde     gefunden,    dass man einen  neuen     Küpenfarbstoff    erhält, wenn man  4.     6-Dimethyl-5    .     7-dichlor-3-oxythionaphthen     mit dem     2-(p-Dimethylamino)-anil    des 4.     7-          Dimethyl-3-oxythionaphthens    kondensiert.  



  Der neue Farbstoff der Formel:  
EMI0001.0010     
    stellt ein rotes Pulver dar, das sich in kon  zentrierter     Schwefelsäure    mit grüner Farbe  löst und Baumwolle aus gelb gefärbter     Küpe     in     beuchechten,    reinen, roten Tönen färbt.  



  <I>Beispiel:</I>  247 Teile 4. 6     -Dimethyl    - 5 . 7 -     dichlor-          3    -     oxythionaphthen    und<B>310</B> Teile 2 -     (p-          Dimethylamino)-anil    des 4. 7 -     Dimethyl    -     3-          oxythionaphthens        werden    mit 4000     Volum-          teilen    Eisessig auf dem Wasserbade erhitzt,    bis die     Kondensation    beendigt ist. Dann wird  filtriert, gewaschen und getrocknet.



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



  The new dye of the formula:
EMI0001.0010
    is a red powder that dissolves in concentrated sulfuric acid with a green color and dyes cotton from a yellow vat in pure, red tones.



  <I> Example: </I> 247 parts 4. 6 -Dimethyl - 5. 7 - dichloro - 3 - oxythionaphthen and <B> 310 </B> parts of 2 - (p-dimethylamino) anil of 4. 7 - dimethyl - 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 - dichlor - 3- oxythionaphthen mit dem 2 - (p - Dimethyl- amino)-anil des 4.7-Dimethyl-3-oxythionaph- thens kondensiert. Der neue Farbstoff der Formel: PATENT CLAIM: Process for the production of a new vat dye, characterized in that 4. 6 - dimethyl - 5. 7 - dichloro - 3-oxythionaphthene with the 2 - (p - dimethyl-amino) -anil of 4,7-dimethyl-3-oxythionaph - thens condensed. The new dye of the formula: EMI0001.0039 stellt ein rotes Pulver dar, das sich in kon zentrierter Schwefelsäure mit grüner Farbe löst und Baumwolle aus gelb gefärbter Küpe in beuchechten, reinen, roten Tönen färbt. EMI0001.0039 is a red powder that dissolves in concentrated sulfuric acid with a green color and dyes cotton from a yellow vat in pure, red tones.
CH174902D 1933-09-22 1933-09-22 Process for the production of a new vat dye. CH174902A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH172735T 1933-09-22
CH174902T 1933-09-22

Publications (1)

Publication Number Publication Date
CH174902A true CH174902A (en) 1935-01-31

Family

ID=25719270

Family Applications (1)

Application Number Title Priority Date Filing Date
CH174902D CH174902A (en) 1933-09-22 1933-09-22 Process for the production of a new vat dye.

Country Status (1)

Country Link
CH (1) CH174902A (en)

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