CH193262A - Process for the production of an acidic wool dye. - Google Patents

Process for the production of an acidic wool dye.

Info

Publication number
CH193262A
CH193262A CH193262DA CH193262A CH 193262 A CH193262 A CH 193262A CH 193262D A CH193262D A CH 193262DA CH 193262 A CH193262 A CH 193262A
Authority
CH
Switzerland
Prior art keywords
dye
production
acidic
blue
wool dye
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 CH193262A publication Critical patent/CH193262A/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:  
EMI0001.0002     
    mit einem sulfonierenden Mittel behandelt.  Der neue Farbstoff, der zwei     Sulfogrup-          pen    im Molekül enthält, löst sich in konzen  trierter Schwefelsäure     grün,    in Wasser blau  und färbt Wolle in blauen Tönen von guten  Echtheitseigenschaften.

      <I>Beispiel:</I>  Das basische     Safranin    der Formel:  
EMI0001.0007     
    das erhältlich ist, indem man das aus     m-To-          lyl-ss-naphthylamin    und     Nitrosodiäthylanilin     in üblicher Weise erhaltene     Isorosindulin    in  bekannter Weise mit     Bisulfit    in die     6-Mono-          sulfonsäure    überführt und letztere in alkoho  lischer Lösung mit     Xylylendiamin    umsetzt.

    wird durch mehrstündiges     Erwärmen    mit  5 Teilen 62 %     igen        Oleums    sulfoniert, bis     eine     Probe in verdünnter     Natriumacetatlösung     klar löslich ist. Die     Aufarbeitung    geschieht      in üblicher Weise durch Ausgiessen auf Eis,  Filtrieren und     Überführung    in das Natron  salz.  



  Der neue Farbstoff enthält zwei     Sulfo-          gruppen    im Molekül. Er löst sich in konzen  trierter Schwefelsäure grün, in Wasser blau  und färbt Wolle in blauen Tönen von guten  Echtheitseigenschaften.



  <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:
EMI0001.0002
    treated with a sulfonating agent. The new dye, which contains two sulfo groups in the molecule, dissolves green in concentrated sulfuric acid, blue in water and dyes wool in blue shades with good fastness properties.

      <I> Example: </I> The basic safranin of the formula:
EMI0001.0007
    this can be obtained by converting the isorosindulin obtained in the usual way from m-tolyl-ss-naphthylamine and nitrosodiethylaniline in a known manner with bisulfite into the 6-monosulfonic acid and reacting the latter in an alcoholic solution with xylylenediamine.

    is sulfonated by heating for several hours with 5 parts of 62% oleum until a sample is clearly soluble in dilute sodium acetate solution. Working up is done in the usual way by pouring onto ice, filtering and converting into the sodium salt.



  The new dye contains two sulfo groups in the molecule. It dissolves green in concentrated sulfuric acid, blue in water and dyes wool in blue shades with good fastness properties.

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 im Molekül enthält, löst sich in konzen trierter Schwefelsäure grün, in Wasser blau und färbt Wolle in blauen Tönen von guten Echtheitseigenschaften. 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, dissolves green in concentrated sulfuric acid, blue in water and dyes wool in blue shades with good fastness properties.
CH193262D 1936-04-11 1936-04-11 Process for the production of an acidic wool dye. CH193262A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH193262T 1936-04-11
CH189649T 1936-04-11

Publications (1)

Publication Number Publication Date
CH193262A true CH193262A (en) 1937-09-30

Family

ID=25721842

Family Applications (1)

Application Number Title Priority Date Filing Date
CH193262D CH193262A (en) 1936-04-11 1936-04-11 Process for the production of an acidic wool dye.

Country Status (1)

Country Link
CH (1) CH193262A (en)

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