CH193255A - Process for the production of an acidic wool dye. - Google Patents

Process for the production of an acidic wool dye.

Info

Publication number
CH193255A
CH193255A CH193255DA CH193255A CH 193255 A CH193255 A CH 193255A CH 193255D A CH193255D A CH 193255DA CH 193255 A CH193255 A CH 193255A
Authority
CH
Switzerland
Prior art keywords
dye
production
acidic
wool dye
acidic wool
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 CH193255A publication Critical patent/CH193255A/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
    • C09B17/00—Azine dyes
    • C09B17/04—Azine dyes of the naphthalene series

Landscapes

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

Description

  

  <B>Zusatzpatent</B> zum Hauptpatent Nr. 189649.    Verfahren zur Herstellung eines sauren Wollfarbstoffes.    Gegenstand vorliegenden Patentes ist ein  Verfahren zur Herstellung eines sauren  Wollfarbstoffes, das dadurch gekennzeichnet  ist, dass man den Farbstoff der Formel:  
EMI0001.0001     
    mit einem sulfonierenden Mittel behandelt.

    Der neue Farbstoff, der zwei     Sulfogrup-          pen    im Molekül enthält, färbt Wolle in  blauen Tönen von guter Licht- und Alkali  echtheit und gutem     Egalisierungsvermögen.       <I>Beispiel:</I>  Zwecks     Sulfonierung    wird der Farbstoff  der Formel:  
EMI0001.0006     
    in die fünffache Menge 80 %     igen        Oleums    ein  getragen und mehrere     Stunden    auf<B>80'</B> er  hitzt, bis eine Probe in wässeriger     Natrium-          acetatlösung    klar löslich ist.

   Die     Aufarbei-          tung    erfolgt in üblicher Weise durch Aus  giessen auf Eis, Filtration und Überführung  in das     Natronsalz.    Der Farbstoff enthält  zwei     Sulfogruppen    im Molekül. Er färbt  Wolle     in    blauen Tönen von     guter    Licht- und       Alkaliechtheit    und gutem     Egalisiervermögen.  



  <B> Additional patent </B> to main patent No. 189649. Process for the production of an acidic wool dye. The present patent relates to a process for the preparation of an acidic wool dye, which is characterized in that the dye of the formula:
EMI0001.0001
    treated with a sulfonating agent.

    The new dye, which contains two sulfo groups in the molecule, dyes wool in blue tones with good lightfastness and alkali fastness and good leveling properties. <I> Example: </I> For the purpose of sulfonation, the dye of the formula:
EMI0001.0006
    carried in five times the amount of 80% oleum and heated to <B> 80 '</B> for several hours until a sample is clearly soluble in aqueous sodium acetate solution.

   Working up is carried out in the customary manner by pouring out onto ice, filtration and conversion into the sodium salt. The dye contains two sulfo groups in the molecule. It dyes wool in blue tones with good light and alkali fastness and good leveling properties.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines sauren Wollfarbstoffes, dadurch gekennzeichnet, dass man den Farbstoff der Formel: EMI0002.0003 mit einem sulfonierenden Mittel behandelt. Der neue Farbstoff, der zwei Sulfo- gruppen im Molekül enthält, färbt Wolle in blauen Tönen von guter Licht- und Alkali echtheit und gutem Egalisiervermögen. PATENT CLAIM: Process for the production of an acidic wool dye, characterized in that the dye of the formula: EMI0002.0003 treated with a sulfonating agent. The new dye, which contains two sulfo groups in the molecule, dyes wool in blue tones with good lightfastness and alkali fastness and good leveling properties.
CH193255D 1936-04-11 1936-04-11 Process for the production of an acidic wool dye. CH193255A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH193255T 1936-04-11
CH189649T 1936-04-11

Publications (1)

Publication Number Publication Date
CH193255A true CH193255A (en) 1937-09-30

Family

ID=25721835

Family Applications (1)

Application Number Title Priority Date Filing Date
CH193255D CH193255A (en) 1936-04-11 1936-04-11 Process for the production of an acidic wool dye.

Country Status (1)

Country Link
CH (1) CH193255A (en)

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