CH202443A - Process for the production of an acidic wool dye. - Google Patents
Process for the production of an acidic wool dye.Info
- Publication number
- CH202443A CH202443A CH202443DA CH202443A CH 202443 A CH202443 A CH 202443A CH 202443D A CH202443D A CH 202443DA CH 202443 A CH202443 A CH 202443A
- Authority
- CH
- Switzerland
- Prior art keywords
- production
- dye
- acidic
- wool dye
- 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
- C09B51/00—Nitro or nitroso dyes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Indole Compounds (AREA)
Description
Verfahren zur Herstellung eines sauren Wollfarbstoffes. Im Hauptpatent Nr. 193627 und dem ersten bis siebzehnten Zusatzpatent sind Ver fahren zur Herstellung saurer Wollfarbstoffe beschrieben, bei welchen man Nitroverbin- dungen der allgemeinen Formeln:
EMI0001.0004
worin Y Halogen oder eine Alkogygruppe, X einen Alkyl-, Aryl- oder Cycloalkylrest und Z die Gruppen C0, S02, CO-aryl-CO oder S02-aryl-SO, bedeuten, mit Aminosul- fonsäuren der Diarylamin-, Cycloalkyl-aryl- amin- oder Carbazolreihe kondensiert.
Es wurde nun gefunden, dass man zu ana logen Farbstoffen mit den gleichen wert vollen Eigenschaften gelangt, wenn man für das genannte Verfahren analoge Nitroverbin- dungen der folgenden allgemeinen Formeln verwendet:
EMI0001.0020
worin X und Y die oben angegebene Bedeu- tung haben und Z1 die Bedeutung -SO- oder -OS-aryl-SO- hat.
Vorliegendes Patent bezieht sich nun auf ein Verfahren zur Herstellung eines sauren Wollfarbstoffes, dadurch gekennzeichnet, dass man 1-Chlor-2-nitrobenzol-4-methylsulfoxyd mit 4-Aminodiphenylamin-?-sulfonsäure kon densiert.
Der so erhaltene Farbstoff färbt Wolle aus saurem Bade in braunen Tönen von sehr guter Egalität.
<I>Beispiel:</I> 26,4 Teile 4 Aminodiphenylamin-2-sul- fonsäure, 22 Teile 1-Chlor-\..)-nitrol)enzol-4- methylsulfoxyd und 28 Teile kristallisiertes Natriumacetat werden mit etwa <B>200</B> Teilen Wasser mehrere Stunden unter Rühren und Rückflusskühlung zum Sieden erhitzt. Nach dem Erkalten wird der gebildete Farbstoff durch Zugabe von wenig Kochsalz ausge schieden, abgetrennt und getrocknet.
Process for the production of an acidic wool dye. In the main patent No. 193627 and the first to seventeenth additional patents, processes for the production of acidic wool dyes are described in which nitro compounds of the general formulas are
EMI0001.0004
where Y is halogen or an alkogy group, X is an alkyl, aryl or cycloalkyl radical and Z is the groups C0, S02, CO-aryl-CO or S02-aryl-SO, with aminosulfonic acids of diarylamine, cycloalkyl-aryl amine or carbazole series condensed.
It has now been found that analog dyes with the same valuable properties are obtained if analogous nitro compounds of the following general formulas are used for the process mentioned:
EMI0001.0020
in which X and Y have the meaning given above and Z1 has the meaning —SO— or —OS-aryl-SO-.
The present patent now relates to a process for the production of an acidic wool dye, characterized in that 1-chloro-2-nitrobenzene-4-methylsulfoxide is condensed with 4-aminodiphenylamine -? - sulfonic acid.
The dye thus obtained dyes wool from an acid bath in brown shades of very good levelness.
<I> Example: </I> 26.4 parts of 4 aminodiphenylamine-2-sulphonic acid, 22 parts of 1-chloro - \ ..) - nitro) enzene-4-methylsulphoxide and 28 parts of crystallized sodium acetate are mixed with about <B > 200 parts of water heated to boiling for several hours with stirring and reflux cooling. After cooling, the dye formed is separated out by adding a little sodium chloride, separated off and dried.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202443X | 1936-12-14 | ||
CH193627T | 1937-12-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH202443A true CH202443A (en) | 1939-01-15 |
Family
ID=25722565
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH202443D CH202443A (en) | 1936-12-14 | 1937-12-13 | Process for the production of an acidic wool dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH202443A (en) |
-
1937
- 1937-12-13 CH CH202443D patent/CH202443A/en unknown
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CH202443A (en) | Process for the production of an acidic wool dye. | |
DE748824C (en) | Process for the production of acidic wool dyes | |
DE436524C (en) | Process for the preparation of 2-oxynaphthalene-6-carboxylic acid | |
DE912210C (en) | Process for the preparation of chlorinated benzoquinones | |
DE611338C (en) | Process for the production of halogen-containing Kuepen dyes | |
AT147785B (en) | Process for the preparation of nitro dyes. | |
CH202551A (en) | Process for the production of a sulfur dye. | |
CH97360A (en) | Process for the preparation of a condensation product of the anthraquinone series which can be used as dye and dye intermediate. | |
CH176036A (en) | Process for the preparation of a triarylmethane dye. | |
CH177144A (en) | Process for the preparation of a dye of the Safranine series. | |
CH185420A (en) | Process for the preparation of a new condensation product of the anthraquinone series. | |
CH193627A (en) | Process for the production of an acidic wool dye. | |
CH179682A (en) | Process for the production of a new vat dye. | |
CH206094A (en) | Process for the production of an aminoarylsulfone. | |
CH195657A (en) | Process for the production of a condensation product. | |
CH131249A (en) | Process for the preparation of p-bromodimethylaniline. | |
CH183889A (en) | Process for the preparation of a dye. | |
CH175883A (en) | Process for the preparation of a substantive copper-containing azo dye. | |
CH166095A (en) | Process for the production of an easily soluble, basic dye. | |
CH170768A (en) | Process for the preparation of a substantive copper-containing azo dye. | |
CH209579A (en) | Process for the production of an acidic wool dye. | |
CH197484A (en) | Process for the preparation of a polymethine dye. | |
CH177134A (en) | Process for the preparation of an acidic triphenylmethane dye. | |
CH178748A (en) | Process for the preparation of a dye of the triarylmethane series. | |
CH190725A (en) | Process for the production of an acidic wool dye. |