CH193257A - Process for the production of an acidic wool dye. - Google Patents

Process for the production of an acidic wool dye.

Info

Publication number
CH193257A
CH193257A CH193257DA CH193257A CH 193257 A CH193257 A CH 193257A CH 193257D A CH193257D A CH 193257DA CH 193257 A CH193257 A CH 193257A
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 CH193257A publication Critical patent/CH193257A/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

  

  Zusatzpatent zum Hauptpatent     Nr.   <B>189649.</B>    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:  
EMI0001.0003     
    mit einem     sulfonierenden    Mittel behandelt.

    Der neue Farbstoff, der zwei     Sulfogrup-          pen    im Molekül enthält, färbt Wolle in sehr  klaren,     grünstichig    blauen Tönen von guter  Licht- und     Alkaliechtheit.       <I>Beispiel:</I>  Der Farbstoff der Formel:  
EMI0001.0009     
    wird zwecks     Sulfonierung    in die     fünffache     Menge 30%igen     Oleums    eingetragen und  mehrere Stunden auf<B>80'</B> erhitzt, bis eine  Probe in wässeriger     Natriumacetatlösung     klar     löslie,11    ist.

   Die Aufarbeitung erfolgt in  üblicher Weise durch Ausgiessen auf Eis,  Filtration und Überführung in das     Natron-          salz.    Der erhaltene Farbstoff enthält zwei       Suliogruppen    im Molekül. Er färbt Wolle  in sehr klaren,     grünstichig    blauen Tönen von  guter Licht- und     Alkaliechtheit,  



  Additional patent to main patent no. <B> 189649. </B> 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:
EMI0001.0003
    treated with a sulfonating agent.

    The new dye, which contains two sulfo groups in the molecule, dyes wool in very clear, greenish blue tones with good light and alkali fastness. <I> Example: </I> The dye of the formula:
EMI0001.0009
    For the purpose of sulfonation, five times the amount of 30% oleum is added and heated to <B> 80 '</B> for several hours until a sample is clearly soluble in aqueous sodium acetate solution 11.

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

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines sauren Wollfarbstoffes, dadurchgekennzeichnet, dass man den Farbstoff der Formel: EMI0002.0005 mit einem sulfonierenden Mittel behandelt. Der neue Farbstoff, der zwei Suliogrup- pen im Molekül enthält, färbt Wolle in sehr klaren, grünstieliig blauen Tönen von guter Licht- und Alkalieelitheit-. PATENT CLAIM: Process for the production of an acidic wool dye, characterized in that the dye of the formula: EMI0002.0005 treated with a sulfonating agent. The new dye, which contains two sulio groups in the molecule, dyes wool in very clear, greenish blue tones of good lightness and alkalinity.
CH193257D 1936-04-11 1936-04-11 Process for the production of an acidic wool dye. CH193257A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH193257T 1936-04-11
CH189649T 1936-04-11

Publications (1)

Publication Number Publication Date
CH193257A true CH193257A (en) 1937-09-30

Family

ID=25721837

Family Applications (1)

Application Number Title Priority Date Filing Date
CH193257D CH193257A (en) 1936-04-11 1936-04-11 Process for the production of an acidic wool dye.

Country Status (1)

Country Link
CH (1) CH193257A (en)

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