CH146266A - Process for the preparation of a vat dye. - Google Patents

Process for the preparation of a vat dye.

Info

Publication number
CH146266A
CH146266A CH146266DA CH146266A CH 146266 A CH146266 A CH 146266A CH 146266D A CH146266D A CH 146266DA CH 146266 A CH146266 A CH 146266A
Authority
CH
Switzerland
Prior art keywords
preparation
vat dye
vat
dye
violet
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 CH146266A publication Critical patent/CH146266A/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
    • C09B5/00—Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings
    • C09B5/24—Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings the heterocyclic rings being only condensed with an anthraquinone nucleus in 1-2 or 2-3 position
    • C09B5/34—Anthraquinone acridones or thioxanthrones

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

      Verfahren    zur Darstellung eines     Küpenfarbstoffes.       Es wurde gefunden, dass man einen     wert-          Zollen    Farbstoff erhalten kann, wenn man  den nach dem Verfahren der schweizerischen  Patentschrift Nr. 1.43399     erhaltenen        Küpen-          farbstoff    mit verseifenden     Mitteln    behandelt.  



  Der erhaltene Farbstoff liefert eine     vio=          lette        Küpe    und färbt hieraus Baumwolle in  violetten Tönen, die beim Verhängen an der  Luft in ein sehr     grünstichiges    Blau über  gehen.    <I>Beispiel:</I>  Man trägt 1 Teil des nach dem Verfah  ren der schweizerischen Patentschrift Nr.  143399 erhaltenen     Reaktionsproduktes    in  etwa 10 Teile     konlentrierte    Schwefelsäure ein  und erwärmt die Lösung eine kurze Zeit lang  auf     etwa        80     C.

   Darnach giesst man die       Schwefelsäurelösung    in Wasser und kann    den in grünblauen Flocken ausgeschiedenen  Farbstoff nach dem Filtrieren und Auswa  schen der Schwefelsäure ohne weiteres zum  Färben verwenden.



      Process for the preparation of a vat dye. It has been found that a valuable dyestuff can be obtained if the vat dyestuff obtained by the process of Swiss Patent No. 1.43399 is treated with saponifying agents.



  The dye obtained provides a violet vat from which it dyes cotton in violet tones which, when hung in the air, turn into a very greenish blue. <I> Example: </I> 1 part of the reaction product obtained by the process of Swiss patent specification No. 143399 is introduced into about 10 parts of concentrated sulfuric acid and the solution is heated to about 80 ° C. for a short time.

   The sulfuric acid solution is then poured into water and the dye which has separated out in green-blue flakes can be used for dyeing after filtering and washing out the sulfuric acid.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines Küpen- farbstoffes, dadurch gekennzeichnet, dass man den nach dem Verfahren des schweizerischen Patentes Nr. 14339 erhaltenen Küpenfarb- stoff mit verseifenden Mitteln behandelt. Der erhaltene Farbstoff liefert eine vio lette Küpe und färbt hieraus Baumwolle in ioletten Tönen, die beim Verhängen an der Luft in ein sehr grünstichiges Blau über gehen. PATENT CLAIM: Process for the preparation of a vat dye, characterized in that the vat dye obtained according to the process of Swiss Patent No. 14339 is treated with saponifying agents. The dye obtained provides a violet vat from which it dyes cotton in violet shades which, when hung in the air, turn into a very greenish blue.
CH146266D 1929-05-21 1929-05-21 Process for the preparation of a vat dye. CH146266A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH146266T 1929-05-21

Publications (1)

Publication Number Publication Date
CH146266A true CH146266A (en) 1931-04-15

Family

ID=4402450

Family Applications (1)

Application Number Title Priority Date Filing Date
CH146266D CH146266A (en) 1929-05-21 1929-05-21 Process for the preparation of a vat dye.

Country Status (1)

Country Link
CH (1) CH146266A (en)

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