CH193250A - Process for the production of an acidic wool dye. - Google Patents

Process for the production of an acidic wool dye.

Info

Publication number
CH193250A
CH193250A CH193250DA CH193250A CH 193250 A CH193250 A CH 193250A CH 193250D A CH193250D A CH 193250DA CH 193250 A CH193250 A CH 193250A
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 CH193250A publication Critical patent/CH193250A/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

  

  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  
EMI0001.0005     
    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.  



  <I>Beispiel:</I>  Zwecks     Sulfonierung    wird der Farbstoff  der Formel  
EMI0001.0011     
    mit der fünffachen Menge     82%igen        Oleums       mehrere Stunden auf 80   erhitzt, bis eine  Probe sich in     verdünnter        Natriumacetat-          lösung    ohne     Rückstand    löst. Die Aufarbei  tung und Überführung in das     Natriumsalz     erfolgt in     üblicher        Weise.    Der Farbstoff  enthält     zwei        Sulfogruppen    im Molekül.

   Er       färbt    Wolle in     blauen    Tönen von guter     Licht-          und        Alkaliechtheit.  



  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
EMI0001.0005
    treated with a sulfonating agent. The new dye, which contains two sulfo groups in the molecule, dyes wool in blue tones that are good to light and alkali fastness.



  <I> Example: </I> For the purpose of sulfonation, the dye of the formula
EMI0001.0011
    heated to 80 for several hours with five times the amount of 82% oleum until a sample dissolves in dilute sodium acetate solution without residue. The work-up and conversion into the sodium salt is carried out in the usual way. The dye contains two sulfo groups in the molecule.

   It dyes wool in blue tones that are light and alkali fast.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eins sauren Wollfarbstoffes, dadurch ,gekennzeichnet, daB man den Farbstoff der Formel: EMI0001.0034 mit einem sulfonierenden Mittel behandelt. Der neue Farbstoff, der zwei Sulfogrup- pen im Molekül enthält, färbtWolle in blauen Tönen von guter Licht- und Alkaliechtheit. PATENT CLAIM: Process for the production of an acidic wool dye, characterized in that the dye of the formula: EMI0001.0034 treated with a sulfonating agent. The new dye, which contains two sulfo groups in the molecule, dyes wool in blue tones that are lightfast and alkali fast.
CH193250D 1936-04-11 1936-04-11 Process for the production of an acidic wool dye. CH193250A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH193250T 1936-04-11
CH189649T 1936-04-11

Publications (1)

Publication Number Publication Date
CH193250A true CH193250A (en) 1937-09-30

Family

ID=25721830

Family Applications (1)

Application Number Title Priority Date Filing Date
CH193250D CH193250A (en) 1936-04-11 1936-04-11 Process for the production of an acidic wool dye.

Country Status (1)

Country Link
CH (1) CH193250A (en)

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