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CH193246A - Process for the production of an acidic wool dye. - Google Patents

Process for the production of an acidic wool dye.

Info

Publication number
CH193246A
CH193246A CH193246DA CH193246A CH 193246 A CH193246 A CH 193246A CH 193246D A CH193246D A CH 193246DA CH 193246 A CH193246 A CH 193246A
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 CH193246A publication Critical patent/CH193246A/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    des vorliegenden     Patentes        ist     ein Verfahren zur Herstellung eines sauren       Wollfarbstoffes,    das dadurch gekennzeichnet  ist,     dass    man den Farbstoff der Formel  
EMI0001.0007     
    mit einem     sulfonierenden    Mittel behandelt.

    Der     neue        Farbstoff,    der zwei     Sulfogrup-          pen    enthält, färbt Wolle in klaren, etwas     rot-          stichigeren    Tönen als der nach dem Haupt  patent     erhaltene    Farbstoff, von ebenfalls       guten        Echtheitseigenschaften,       <I>Beispiel:

  </I>  Der Farbstoff der Formel  
EMI0001.0018     
         wird    zwecks     @Sulfonierung    in die     fünffache     Menge 80     %        igen        Oleums        eingetragen        und     mehrere     Stunden    auf<B>80'</B>     erhitzt,    bis eine  Probe in wässriger     Natriumacetatlösung        klar     löslich ist.

   Die     Aufarbeitung    erfolgt in übli  cher Weise, durch Ausgiessen auf Eis, Filtra  tion     und    Überführung     in        das        Natronsasz.     Der so     erhaltene    Farbstoff enthält zwei       Sulfogruppen.    Er färbt     Wolle    in     klaren          Tönen    von guten     Echtheitseigenschaften.    Die  Färbungen sind     etwas        rotstichiger    als .die mit  dem     Farbstoff,des    Hauptpatentes     erhaltenen,  



  <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
EMI0001.0007
    treated with a sulfonating agent.

    The new dye, which contains two sulfo groups, dyes wool in clear, somewhat reddish tones than the dye obtained according to the main patent, and also has good fastness properties, <I> Example:

  </I> The dye of the formula
EMI0001.0018
         For the purpose of @sulfonation, five times the amount of 80% oleum is added and heated to <B> 80 '</B> for several hours until a sample is clearly soluble in aqueous sodium acetate solution.

   The work-up is carried out in a customary manner, by pouring onto ice, filtration and transfer to the soda ash. The dye thus obtained contains two sulfo groups. It dyes wool in clear shades with good fastness properties. The colorations are slightly more reddish than those obtained with the dye of the main patent

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines sauren Wollfarbstoffes, dadurch gekennzeichnet, @dass man den Farbstoff der Formel EMI0002.0006 mit einem sulfonierenden Mittel behandelt. Der neue Farbstoff, der zwei Sulfogrup- pen enthält, färbt auf Wolle in klaren, etwas rotstichigeren Tönen als der nach dem Haupt patent erhaltene Farbstoff, von ebenfalls guten Echtheitseigenschaften. PATENT CLAIM: Process for the production of an acidic wool dye, characterized in that one uses the dye of the formula EMI0002.0006 treated with a sulfonating agent. The new dye, which contains two sulfo groups, dyes wool in clear, somewhat more reddish tones than the dye obtained according to the main patent, and also has good fastness properties.
CH193246D 1936-04-11 1936-04-11 Process for the production of an acidic wool dye. CH193246A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH193246T 1936-04-11
CH189649T 1936-04-11

Publications (1)

Publication Number Publication Date
CH193246A true CH193246A (en) 1937-09-30

Family

ID=25721826

Family Applications (1)

Application Number Title Priority Date Filing Date
CH193246D CH193246A (en) 1936-04-11 1936-04-11 Process for the production of an acidic wool dye.

Country Status (1)

Country Link
CH (1) CH193246A (en)

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