CH110420A - Process for the production of a vat dye. - Google Patents

Process for the production of a vat dye.

Info

Publication number
CH110420A
CH110420A CH110420DA CH110420A CH 110420 A CH110420 A CH 110420A CH 110420D A CH110420D A CH 110420DA CH 110420 A CH110420 A CH 110420A
Authority
CH
Switzerland
Prior art keywords
production
vat dye
dye
yellow
glyoxal
Prior art date
Application number
Other languages
German (de)
Inventor
Soda-Fabrik Badische Anilin
Original Assignee
Basf 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 Basf Ag filed Critical Basf Ag
Publication of CH110420A publication Critical patent/CH110420A/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
    • C09B5/32—1.3 azoles of the anthracene series

Landscapes

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

Description

  

  Verfahren zur Herstellung eines     Küpenfarbstoües.       Gemäss dem Verfahren ,des     Hauptpatentes     erhält man einen echte,     zitronengelben    Fär  bungen liefernden     Küpenfarbsto.ff,    wenn man  auf 1-     Xerkapto-2-aminoauthrauchinon        Gly-          oxal,    zum Beispiel in Form der     Bisulfitver-          bindung,        einwirken    lässt.  



  Es wurde nun gefunden,     d.a,ss    man diesen  Farbstoff ebenfalls darstellen kann, wenn  man auf     1-Merkapto-2-aminoanthraehinon    -das       leicht    zugängliche     Glyoxalsulfat    einwirken  lässt.  



  <I>Beispiel:</I>  10 Teile     1-M.erkapto-2-.aminoanthra,chinon     oder     dessen        Disulfit        werden    in 100 Teilen       Schwefelsäure    von<B>66'</B>     Be    gelöst.     Dann    wer  den 4,.7 Teile     Glyoxals.ulfat    eingetragen. Das  Ganze wird darauf     1/a    Stunde auf 90     bis   <B>100'</B>         erhitzt.    Dabei geht die anfangs     grüngelbe     Farbe der Lösung in gelbrot über.

   Nach dem  Erkalten     wird    in     Wasser        .gerührt,        abfiltriert     und ausgewaschen. Der erhaltene     .grünstichig     gelbe Farbstoff ist in     dieser    Form zum Fär  ben geeignet,     kann    aber     gewünschtenfälls     durch Kochen mit     Natriumhypo,chlori.dlösung     noch weiter gereinigt werden.



  Process for the production of a vat dye. According to the process of the main patent, a real, lemon-yellow coloring is obtained if 1-Xerkapto-2-aminoauthrauchinone glyoxal, for example in the form of the bisulfite compound, is allowed to act.



  It has now been found that this dye can also be produced if 1-mercapto-2-aminoanthraehinone - the easily accessible glyoxal sulfate - is allowed to act.



  <I> Example: </I> 10 parts of 1-M.erkapto-2-.aminoanthra, quinone or its disulfite are dissolved in 100 parts of sulfuric acid of <B> 66 '</B> Be. Then who entered the 4.7 parts of glyoxal sulfate. The whole thing is then heated to 90 to <B> 100 '</B> for 1 / a hour. The initially green-yellow color of the solution changes to yellow-red.

   After cooling, it is stirred in water, filtered off and washed out. The greenish yellow dye obtained is suitable for dyeing in this form, but can, if desired, be further purified by boiling with sodium hypochlorite solution.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines grün stichig. gelben Küpenfarbstoffes, dadurch ge kennzeichnet, dass man auf 1-1VIerkapto-2- amino,anthrachinon Glyoxalsulfat einwirken lässt. PATENT CLAIM: Process for the representation of a green cast. yellow vat dye, characterized in that one lets act on 1-1VIerkapto-2-amino, anthraquinone glyoxal sulfate.
CH110420D 1924-01-14 1924-01-14 Process for the production of a vat dye. CH110420A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH108492T 1924-01-14
CH110420T 1924-01-14

Publications (1)

Publication Number Publication Date
CH110420A true CH110420A (en) 1925-06-01

Family

ID=25707380

Family Applications (1)

Application Number Title Priority Date Filing Date
CH110420D CH110420A (en) 1924-01-14 1924-01-14 Process for the production of a vat dye.

Country Status (1)

Country Link
CH (1) CH110420A (en)

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