CH196654A - Process for the production of a new vat dye. - Google Patents

Process for the production of a new vat dye.

Info

Publication number
CH196654A
CH196654A CH196654DA CH196654A CH 196654 A CH196654 A CH 196654A CH 196654D A CH196654D A CH 196654DA CH 196654 A CH196654 A CH 196654A
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 CH196654A publication Critical patent/CH196654A/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
    • C09B57/00—Other synthetic dyes of known constitution
    • C09B57/001—Pyrene dyes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)

Description

  

  Verfahren zur Herstellung eines neuen     Nüpenfarhstoifes.       Es wurde gefunden, dass man einen  neuen     Küpenfarbstoff    erhält, wenn man das  3. 5.     8.10-Tetrabenzoylpyren    mit Aluminium  chlorid in Gegenwart eines verflüssigenden  Mittels, wie     Natriumchlorid,    erhitzt. Der neue  Farbstoff löst sich in Schwefelsäure mit blau  stichig-violetter Farbe und färbt Baumwolle  aus rotvioletter     güpe,    nach dem Verhängen  und Seifen, in echten orangegelben Tönen.

    <I>Beispiel:</I>  Ein Gemisch, bestehend aus 300 Teilen  Aluminiumchlorid, 60 Teilen     Natriumchlorid,     wird auf 155   erhitzt und in die dünnflüssige  Schmelze im Verlaufe     1/4    Stunde 20 Teile  3. 5.<B>8.</B>     10-Tetrabenzoylpyren    eingetragen. Da  bei ist darauf zu achten, dass die Tempera  tur der Schmelze immer bei 155-160   liegt.  Nach beendetem Eintragen leitet man wäh  rend 12 Stunden unter     Innehaltung    obigen       Temperaturintervalles    einen massigen Strom  Sauerstoff durch die Schmelze.    Die dunkle Schmelze wird hierauf in üb  licher Weise aufgearbeitet.

   Der erhaltene  stumpfbraungelbe Rohfarbstoff wird durch       Umküpen    bei etwa 80   von     unverküpbaren     Anteilen befreit. Der isolierte Farbstoff kann  gegebenenfalls durch eine Behandlung mit  Salzen     unterchloriger    Säuren gereinigt werden.



  Process for the production of a new Nüpenfarhstoifes. It has been found that a new vat dye is obtained if the 3.5.8.10-tetrabenzoylpyrene is heated with aluminum chloride in the presence of a liquefying agent such as sodium chloride. The new dye dissolves in sulfuric acid with a blue-tinged violet color and dyes cotton from red-violet güpe in real orange-yellow tones after hanging and soaping.

    <I> Example: </I> A mixture consisting of 300 parts of aluminum chloride and 60 parts of sodium chloride is heated to 155 and in the course of 1/4 hour 20 parts 3. 5. <B> 8. </ B> 10-tetrabenzoylpyrene entered. It is important to ensure that the melt temperature is always 155-160. After the end of the introduction, a massive stream of oxygen is passed through the melt for 12 hours while maintaining the above temperature range. The dark melt is then worked up in the usual way.

   The dull brown-yellow crude dye obtained is freed from unlinkable proportions by vatting at about 80. The isolated dye can optionally be purified by treatment with salts of hypochlorous acids.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Küpenfarbstoffes, dadurch gekennzeichnet, dass man das 3.5.8.10-Tetrabenzoylpyreri mit Aluminiumchlorid in Gegenwart eines ver flüssigenden Mittels erhitzt. Der neue Farb stoff löst sich in Schwefelsäure mit blaustichig violetter Farbe und färbt Baumwolle aus rot violetter güpe, nach dem Verhängen und Seifen in echten orangegelben Tönen. PATENT CLAIM: Process for the production of a new vat dye, characterized in that the 3.5.8.10-tetrabenzoylpyreri is heated with aluminum chloride in the presence of a liquefying agent. The new dye dissolves in sulfuric acid with a bluish violet color and dyes cotton from red violet güpe, after hanging and soaps in real orange-yellow tones.
CH196654D 1936-12-09 1936-12-09 Process for the production of a new vat dye. CH196654A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH196654T 1936-12-09

Publications (1)

Publication Number Publication Date
CH196654A true CH196654A (en) 1938-03-31

Family

ID=4440482

Family Applications (1)

Application Number Title Priority Date Filing Date
CH196654D CH196654A (en) 1936-12-09 1936-12-09 Process for the production of a new vat dye.

Country Status (1)

Country Link
CH (1) CH196654A (en)

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