CH193263A - Process for the production of an acidic wool dye. - Google Patents

Process for the production of an acidic wool dye.

Info

Publication number
CH193263A
CH193263A CH193263DA CH193263A CH 193263 A CH193263 A CH 193263A CH 193263D A CH193263D A CH 193263DA CH 193263 A CH193263 A CH 193263A
Authority
CH
Switzerland
Prior art keywords
dye
production
acidic
wool dye
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 CH193263A publication Critical patent/CH193263A/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    zum Hauptpatent Nr. 189649.    Verfahren zur Herstellung eines sauren     Wollfarbstoffes.       Gegenstand vorliegenden Patentes ist ein  Verfahren zur Herstellung eines sauren  Wollfarbstoffes, das dadurch gekennzeichnet  ist, dass man den Farbstoff der     Formel:     
EMI0001.0004     
    mit einem     sulfonierenden    Mittel behandelt.  Der neue Farbstoff, der zwei     Sulfogrup-          pen    im Molekül enthält, löst sich in konzen  trierter Schwefelsäure mit grüner, in Wasser  mit blauer Farbe und färbt Wolle in blauen  Tönen von guten Echtheitseigenschaften.

           Beispiel:     Der Farbstoff der Formel  
EMI0001.0009     
    wird zwecks     Sulfonierung    in der fünffachen  Menge 32 %     igen        Oleums    mehrere     Stunden    er  hitzt, bis eine Probe in verdünnter Natrium  acetatlösung klar löslich ist. Die Aufarbei  tung erfolgt in üblicher Weise durch Aus  giessen auf Eis,     Filtrieren    und     Überführung     in das     Natronsalz.    Der erhaltene Farbstoff  enthält zwei     Sulfogruppen    im Molekül.

   Er      löst sich     in    konzentrierter Schwefelsäure mit  grüner, in Wasser mit blauer Farbe und färbt  Wolle in     blauen    Tönen von guten Echtheits  eigenschaften.



      Additional patent 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:
EMI0001.0004
    treated with a sulfonating agent. The new dye, which contains two sulfo groups in the molecule, dissolves in concentrated sulfuric acid with a green color and in water with a blue color and dyes wool in blue shades with good fastness properties.

           Example: The dye of the formula
EMI0001.0009
    is for the purpose of sulfonation in five times the amount of 32% oleum for several hours he heated until a sample in dilute sodium acetate solution is clearly soluble. The processing is carried out in the customary manner by pouring out onto ice, filtering and converting into the sodium salt. The dye obtained contains two sulfo groups in the molecule.

   It dissolves in concentrated sulfuric acid with green color, in water with blue color and dyes wool in blue shades with good fastness properties.

Claims (1)

PATENTANSPRÜCH: Verfahren zur Herstellung eines sauren Wollfarbstoffes, dadurch gekennzeichnet, dass man den Farbstoff der Formel: EMI0002.0005 mit einem sulfonierenden Mittel behandelt. Der neue Farbstoff, der zwei Sulfogrup- pen im Molekül enthält, löst sich in konzen trierter Schwefelsäure mit grüner, in Wasser mit blauer Farbe und färbt Wolle in blauen Tönen von guten Echtheitseigenschaften. PATENT CLAIM: Process for the preparation of an acidic wool dye, characterized in that the dye of the formula: EMI0002.0005 treated with a sulfonating agent. The new dye, which contains two sulfo groups in the molecule, dissolves in concentrated sulfuric acid with a green color and in water with a blue color and dyes wool in blue shades with good fastness properties.
CH193263D 1936-04-11 1936-04-11 Process for the production of an acidic wool dye. CH193263A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH189649T 1936-04-11
CH193263T 1936-04-11

Publications (1)

Publication Number Publication Date
CH193263A true CH193263A (en) 1937-09-30

Family

ID=25721843

Family Applications (1)

Application Number Title Priority Date Filing Date
CH193263D CH193263A (en) 1936-04-11 1936-04-11 Process for the production of an acidic wool dye.

Country Status (1)

Country Link
CH (1) CH193263A (en)

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