CH193252A - Process for the production of an acidic wool dye. - Google Patents

Process for the production of an acidic wool dye.

Info

Publication number
CH193252A
CH193252A CH193252DA CH193252A CH 193252 A CH193252 A CH 193252A CH 193252D A CH193252D A CH 193252DA CH 193252 A CH193252 A CH 193252A
Authority
CH
Switzerland
Prior art keywords
dye
production
acidic
greenish blue
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 CH193252A publication Critical patent/CH193252A/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

Description

  

  <B>Zusatzpatent</B> zum Hauptpatent Nr. 189649.    Verfahren zur Herstellung eines sauren     Wollfarbstoffes.       Gegenstand vorliegenden Patentes ist ein  Verfahren zur Herstellung eines sauren     Woll-          farbstoffes,    das dadurch gekennzeichnet ist,  dass man den Farbstoff der Formel:  
EMI0001.0004     
    mit einem sulfonierenden Mittel behandelt.

    Der neue Farbstoff, der zwei     Sulfo-          gruppen    im Molekül enthält, löst sich in kon  zentrierter Schwefelsäure grün, in Wasser  klar     grünstichig    blau und färbt Wolle in  klaren     grünstichig    blauen Tönen von guter  Licht- und     Alkaliechtheit.            Beispiel:     Der nach bekannten Methoden hergestellte  Farbstoff der Formel:

    
EMI0001.0011     
         wird    zwecks     Sulfonierung    in die fünffache  Menge 80 %     igen        Oleums    eingetragen und  mehrere Stunden auf<B>80"</B> erhitzt, bis eine  Probe in wässeriger     Natriumacetatlösung     klar löslich     ist..Die        Aufarbeitung    erfolgt in  üblicher Weise durch Ausgiessen auf Eis,  Filtration und     Überführung    in das Natron  salz. Der erhaltene Farbstoff enthält zwei       Sulfogruppen    im Molekül.

   Er färbt Wolle in  klaren     grünstichig    blauen Tönen von guter  Licht- und     Alkaliechtheit.    In konzentrierter      Schwefelsäure löst er sich grün, in Wasser  klar     grünstichig    blau.



  <B> Additional patent </B> to main patent No. 189649. 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 in that the dye of the formula:
EMI0001.0004
    treated with a sulfonating agent.

    The new dye, which contains two sulfo groups in the molecule, dissolves green in concentrated sulfuric acid, clear greenish blue in water and dyes wool in clear greenish blue shades of good lightfastness and alkali fastness. Example: The dye with the formula:

    
EMI0001.0011
         For the purpose of sulfonation, five times the amount of 80% oleum is added and heated to <B> 80 "for several hours until a sample is clearly soluble in aqueous sodium acetate solution. Working up is carried out in the usual way by pouring onto ice, filtration and conversion into the sodium salt. The dye obtained contains two sulfo groups in the molecule.

   It dyes wool in clear greenish blue tones with good lightfastness and alkali fastness. In concentrated sulfuric acid it dissolves green, in water it dissolves clear greenish blue.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines sauren Wollfarbstoffes, dadurch gekennzeichnet, dass man den Farbstoff der Formel: EMI0002.0003 mit einem sulfonierenden Mittelbehandelt. Der neue Farbstoff, der zwei Sulfogrup- pen im Molekül enthält, löst sich in konzen trierter Schwefelsäure grün, in Wasser klar grünstichig blau und färbt Wolle in klaren grünstichig 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: EMI0002.0003 treated with a sulfonating agent. The new dye, which contains two sulfo groups in the molecule, dissolves green in concentrated sulfuric acid, clear greenish blue in water and dyes wool in clear greenish blue shades of good lightfastness and alkali fastness.
CH193252D 1936-04-11 1936-04-11 Process for the production of an acidic wool dye. CH193252A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH189649T 1936-04-11
CH193252T 1936-04-11

Publications (1)

Publication Number Publication Date
CH193252A true CH193252A (en) 1937-09-30

Family

ID=25721832

Family Applications (1)

Application Number Title Priority Date Filing Date
CH193252D CH193252A (en) 1936-04-11 1936-04-11 Process for the production of an acidic wool dye.

Country Status (1)

Country Link
CH (1) CH193252A (en)

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