CH193256A - Process for the production of an acidic wool dye. - Google Patents

Process for the production of an acidic wool dye.

Info

Publication number
CH193256A
CH193256A CH193256DA CH193256A CH 193256 A CH193256 A CH 193256A CH 193256D A CH193256D A CH 193256DA CH 193256 A CH193256 A CH 193256A
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 CH193256A publication Critical patent/CH193256A/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     züm    Hauptpatent     Nr.   <B>189649.</B>    Verfahren zur Herstellung eines sauren Wollfarbstoffes.    Gegenstand vorliegenden Patentes ist ein  Verfahren zur Herstellung eines sauren       Wollfarbstoffes,    das     dadlirch    gekennzeichnet  ist,     dass    man den Farbstoff der Formel:  
EMI0001.0006     
    mit einem     sulionierenden    Mittel behandelt.

    Der neue Farbstoff, der zwei     Sulfogrup-          pen    im Molekül enthält, färbt Wolle     inkla-          ren    blauen Tönen von guter Licht- und     Al-          kaliechtheit.       <I>Beispiel:</I>  Das     Safranin    der Formel:

    
EMI0001.0015     
    das erhältlich ist durch     Zusammenoxydieren     des     Isorosindulins    aus     vie.        m-Xylyl#fl-naph-          thylamin    und     Nitrosodimethylanilin    mit     5-          Amido-2-methyl-toluidin,    wird zwecks     Sul-          fierung    mit der     fünffaehen    Menge<B>32 %</B>     igen          Oleums    mehrere     Standen    auf<B>80 '</B> erhitzt,

   bis  eine Probe sich in verdünnter     Natriumaceta-          lösung    ohne Rückstand löst. Die Aufarbei  tung und Überführung in das     Natriumsalz     erfolgt in üblicher Weise. Der Farbstoff ent  hält zwei     Suliogruppen    im Molekül. Er färbt      Wolle in klaren blauen Tönen von guter  Licht- und     Alkaliechtlieit.  



  Additional patent to main patent no. <B> 189649. </B> Process for the production of an acidic wool dye. The subject of the present patent is a process for the preparation of an acidic wool dye, which is characterized by the fact that the dye of the formula:
EMI0001.0006
    treated with a sulphonating agent.

    The new dye, which contains two sulfo groups in the molecule, dyes wool in clear blue tones with good lightfastness and alkali fastness. <I> Example: </I> The Safranin formula:

    
EMI0001.0015
    which is obtainable by co-oxidizing the isorosindulin from vie. m-Xylyl # fl-naphthylamine and nitrosodimethylaniline with 5-amido-2-methyl-toluidine, for the purpose of sulphation with the five-fold amount of <B> 32% </B> oleum several levels at <B> 80 ' </B> heated,

   until a sample dissolves in dilute sodium acetate solution without residue. The processing and conversion into the sodium salt is carried out in the usual way. The dye contains two sulio groups in the molecule. It dyes wool in clear blue tones with good light and alkali fastness.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines sauren Wollfarbstoffes, dadurchgekennzeichnet, dass man den Farbstoff der Formel: EMI0002.0006 mit einem sulfonierenden Mittel behandelt. Der neue Farbstoff, der zwei Sulfogrup- pen im Molekül enthält, färbt Wolle in kla ren blauen Tönen von guter Licht- und Al- kaliechtheit. PATENT CLAIM: Process for the production of an acidic wool dye, characterized in that the dye of the formula: EMI0002.0006 treated with a sulfonating agent. The new dye, which contains two sulfo groups in the molecule, dyes wool in clear blue tones with good light and alkali fastness.
CH193256D 1936-04-11 1936-04-11 Process for the production of an acidic wool dye. CH193256A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH193256T 1936-04-11
CH189649T 1936-04-11

Publications (1)

Publication Number Publication Date
CH193256A true CH193256A (en) 1937-09-30

Family

ID=25721836

Family Applications (1)

Application Number Title Priority Date Filing Date
CH193256D CH193256A (en) 1936-04-11 1936-04-11 Process for the production of an acidic wool dye.

Country Status (1)

Country Link
CH (1) CH193256A (en)

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