CH103651A - Process for the production of an indigoid dye of the anthracene series. - Google Patents

Process for the production of an indigoid dye of the anthracene series.

Info

Publication number
CH103651A
CH103651A CH103651DA CH103651A CH 103651 A CH103651 A CH 103651A CH 103651D A CH103651D A CH 103651DA CH 103651 A CH103651 A CH 103651A
Authority
CH
Switzerland
Prior art keywords
anthraquinone
production
indigoid dye
anthracene series
indigo
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 CH103651A publication Critical patent/CH103651A/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

  

      Verfahren    zur Herstellung eines     indigoiden        Farbstoffes    der     Anthracenreihe.       Es wurde gefunden, dass man einen     indi-          goiden    Farbstoff der     Anthracenreihe,    den  2 -     3-Anthrachinon-bis-thionaphthenindigo,    er  hält, wenn man die 2 -     3-Anthrachinonthio-          glykolkarbonsäurc,    in Gegenwart eines ge  eigneten Verdünnungsmittels auf höhere Tem  peratur erhitzt.  



  Die Herstellung des     indigoden    Farb  stoffes kann mit derjenigen der 2 -     3-Anthra-          chinonthioglylzolkarbonsäure    in einem Ar  beitsgang vereinigt werden.  



       Der    2 -     3-Anthrachinon-bis-thionaphten-          indigo    bildet ein     tiefgrünschwarzes    Pulver,  welches sich in Schwefelsäure mit grüner  Farbe löst und mit     Hy        drosulfit    und Natron  lauge eine     olivebraune        Küpe    bildet, aus  welcher     Baumwolle    in blauen Farbtönen ge  färbt wird.  



  <I>Beispiel 1:</I>  35 Teile 2 -     3-Anthrachinonthioglykol-          karbonsäure    werden mit 500 Teilen Wasser  in einem geschlossenen Gefäss mehrere Stun  den auf 190 bis 200   erhitzt. Der aus-    geschiedene Farbstoff wird mit Soda aus  gekocht, filtriert, reichlich gewaschen und  getrocknet.  



  <I>Beispiel 2:</I>  46,2 Teile     thioglykolsaures    Natrium und  92 Teile     2.3-chloranthrachinonkarbonsaures     Natrium werden in einem geschlossenen Ge  fäss mit 600 Teilen Wasser mehrere Stun  den auf<B>190</B> bis 200   erhitzt. Es bildet     sick     zunächst die 2 -     3-Anthrachinonthioglykol-          karbonsäure,    welche ohne weiteres in den  Farbstoff des Beispiels 1 übergeht.



      Process for the production of an indigoid dye of the anthracene series. It has been found that an indigoid dye of the anthracene series, the 2-3-anthraquinone-bis-thionaphthene indigo, is obtained if the 2-3-anthraquinone thioglycol carboxylic acid is heated to a higher temperature in the presence of a suitable diluent .



  The production of the indigo dyestuff can be combined with that of the 2-3-anthraquinone thioglyl carboxylic acid in one work step.



       The 2-3-anthraquinone-bis-thionaphten- indigo forms a deep green black powder which dissolves in sulfuric acid with a green color and forms an olive-brown vat with hydrosulfite and sodium hydroxide solution, from which cotton is dyed in blue shades.



  <I> Example 1 </I> 35 parts of 2-3-anthraquinone thioglycolic acid are heated to 190 to 200 for several hours with 500 parts of water in a closed vessel. The separated dye is boiled with soda, filtered, washed copiously and dried.



  <I> Example 2: </I> 46.2 parts of sodium thioglycol and 92 parts of sodium 2,3-chloranthraquinone are heated to 190 to 200 for several hours in a closed vessel with 600 parts of water. It first forms the 2-3-anthraquinone thioglycol carboxylic acid, which is readily converted into the dye of Example 1.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines indi- goiden Farbstoffes der Anthracenreihe, des 2 - 3 -Anthrachinon-bis-thionaphthenindigos, dadurch gekennzeichnet, dass man die 2 - 3 Anthrachinonthioglykolkarbonsäure in Ge genwart eines geeigneten Verdünnungsmittels auf höhere Temperatur erhitzt. PATENT CLAIM: Process for the production of an indigoid dye of the anthracene series, the 2-3 -anthraquinone-bis-thionaphthene-indigo, characterized in that the 2-3 anthraquinone thioglycol carboxylic acid is heated to a higher temperature in the presence of a suitable diluent. Der 2.3-Anthrachinon-bis-thionaphten- indigo bildet ein tiefgrünschwarzes Pulver, weiches sich in Schwefelsäure mit grüner Farbe löst und mit Hydrosulfit und Natron lauge eine oliv ebraune Isüpe bildet, aus welcher Baumwolle in blauen Farbtönen ge färbt wird. The 2,3-anthraquinone-bis-thionaphten-indigo forms a deep green black powder, which dissolves in sulfuric acid with a green color and with hydrosulfite and caustic soda forms an olive-brown isup, from which cotton is dyed in blue shades.
CH103651D 1923-01-24 1923-01-24 Process for the production of an indigoid dye of the anthracene series. CH103651A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH103651T 1923-01-24

Publications (1)

Publication Number Publication Date
CH103651A true CH103651A (en) 1924-02-16

Family

ID=4362433

Family Applications (1)

Application Number Title Priority Date Filing Date
CH103651D CH103651A (en) 1923-01-24 1923-01-24 Process for the production of an indigoid dye of the anthracene series.

Country Status (1)

Country Link
CH (1) CH103651A (en)

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