CH193256A - Process for the production of an acidic wool dye. - Google Patents
Process for the production of an acidic wool dye.Info
- Publication number
- CH193256A CH193256A CH193256DA CH193256A CH 193256 A CH193256 A CH 193256A CH 193256D A CH193256D A CH 193256DA CH 193256 A CH193256 A CH 193256A
- Authority
- CH
- Switzerland
- Prior art keywords
- dye
- production
- acidic
- wool dye
- acidic wool
- Prior art date
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 züm Hauptpatent Nr. <B>189649.</B> Verfahren zur Herstellung eines sauren Wollfarbstoffes. Gegenstand vorliegenden Patentes ist ein Verfahren zur Herstellung eines sauren Wollfarbstoffes, das dadlirch gekennzeichnet ist, dass man den Farbstoff der Formel:
EMI0001.0006
mit einem sulionierenden Mittel behandelt.
Der neue Farbstoff, der zwei Sulfogrup- pen im Molekül enthält, färbt Wolle inkla- ren blauen Tönen von guter Licht- und Al- kaliechtheit. <I>Beispiel:</I> Das Safranin der Formel:
EMI0001.0015
das erhältlich ist durch Zusammenoxydieren des Isorosindulins aus vie. m-Xylyl#fl-naph- thylamin und Nitrosodimethylanilin mit 5- Amido-2-methyl-toluidin, wird zwecks Sul- fierung mit der fünffaehen Menge<B>32 %</B> igen Oleums mehrere Standen auf<B>80 '</B> erhitzt,
bis eine Probe sich in verdünnter Natriumaceta- lösung ohne Rückstand löst. Die Aufarbei tung und Überführung in das Natriumsalz erfolgt in üblicher Weise. Der Farbstoff ent hält zwei Suliogruppen im Molekül. Er färbt Wolle in klaren blauen Tönen von guter Licht- und Alkaliechtlieit.
Additional patent to main patent no. <B> 189649. </B> 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 by the fact that the dye of the formula:
EMI0001.0006
treated with a sulphonating agent.
The new dye, which contains two sulfo groups in the molecule, dyes wool in clear blue tones with good lightfastness and alkali fastness. <I> Example: </I> The Safranin formula:
EMI0001.0015
which is obtainable by co-oxidizing the isorosindulin from vie. m-Xylyl # fl-naphthylamine and nitrosodimethylaniline with 5-amido-2-methyl-toluidine, for the purpose of sulphation with the five-fold amount of <B> 32% </B> oleum several levels at <B> 80 ' </B> heated,
until a sample dissolves in dilute sodium acetate solution without residue. The processing and conversion into the sodium salt is carried out in the usual way. The dye contains two sulio groups in the molecule. It dyes wool in clear blue tones with good light and alkali fastness.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH189649T | 1936-04-11 | ||
CH193256T | 1936-04-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH193256A true CH193256A (en) | 1937-09-30 |
Family
ID=25721836
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH193256D CH193256A (en) | 1936-04-11 | 1936-04-11 | Process for the production of an acidic wool dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH193256A (en) |
-
1936
- 1936-04-11 CH CH193256D patent/CH193256A/en unknown
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