DE436176C - Process for the production of solid, permanent, water-soluble coagulations of dyes from the vat - Google Patents
Process for the production of solid, permanent, water-soluble coagulations of dyes from the vatInfo
- Publication number
- DE436176C DE436176C DEB106147D DEB0106147D DE436176C DE 436176 C DE436176 C DE 436176C DE B106147 D DEB106147 D DE B106147D DE B0106147 D DEB0106147 D DE B0106147D DE 436176 C DE436176 C DE 436176C
- Authority
- DE
- Germany
- Prior art keywords
- solid
- water
- vat
- dyes
- soluble
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
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
- C09B9/00—Esters or ester-salts of leuco compounds of vat dyestuffs
Description
Verfahren zur Darstellung von festen, beständigen, wasserlöslichen Abkömmlingen von Küpenfarbstoffen.Process for the preparation of solid, stable, water-soluble Derived from vat dyes.
Zusatz zum Patent 424981. Nach dem Verfahren des Hauptpatents 424981 werden feste, esterartige Abkömmlinge von Küpenfarbstoffen hergestellt durch Einwirkung von Chlorsulfonsäure bzw. deren Salze auf die Leukokörper der Küpenfarbstoffe bei Gegenwart einer tertiären Base mit oder ohne Anwendung eines indifferenten Verdünnungsmittels.Addition to patent 424981. Following the procedure of main patent 424981 solid, ester-like derivatives of vat dyes are produced by action of chlorosulfonic acid or its salts on the leuco bodies of the vat dyes Presence of a tertiary base with or without the use of an inert diluent.
Es wurde nun gefunden, daß Chlorsulfonsäure (bzw. deren Salze) durch rauchende Schwefelsäure oder Schwefelsäureänhydrid ersetzt werden kann. Beispiel 1. Unter gutem Rühren werden zu einer stark gekühlten Mischung von 12o Teilen Chlorbenzol, 9o Teilen Dimethylanilin und 26 Teilen Leukoindigo unter Ausschluß von Luft tropfenweise 36 Teile Oleum von 66 Prozent zugegeben.It has now been found that chlorosulfonic acid (or its salts) through fuming sulfuric acid or sulfuric anhydride can be replaced. example 1. With thorough stirring, a strongly cooled mixture of 12o parts of chlorobenzene, 90 parts of dimethylaniline and 26 parts of leucoindigo drop by drop with the exclusion of air 36 parts of 66 percent oleum were added.
Die weitere Aufarbeitung geschieht wie in Beispiel 2 des Hauptpatents angegeben. Beispiel e.The further work-up takes place as in Example 2 of the main patent specified. Example e.
Unter gutem Rühren werden in eine stark abgekühlte Mischung von iao Teilen Chlorbenzol und 48 Teilen Dimethylanilin 24 Teile Schwefelsäureanhydrid eingeleitet. Die Luft wird im Reaktionsgefäß durch Kohlensäure verdrängt. In die so entstandene Mischung werden. dann 26 Teile Leukoindigo eingebracht. Es wird einige Zeit kalt gerührt und darauf unter fortwährendem Rühren langsam auf 5o bis 6o° C erwärmt.While stirring well, a strongly cooled mixture of iao Parts of chlorobenzene and 48 parts of dimethylaniline initiated 24 parts of sulfuric anhydride. The air in the reaction vessel is displaced by carbonic acid. In the resulting Be mixture. then introduced 26 parts of leucoindigo. It gets cold for a while stirred and then slowly warmed to 5o to 6o ° C. while stirring continuously.
Die weitere Aufarbeitung ist ebenfalls dieselbe wie im Beispiel 2 des Hauptpatents.The further work-up is also the same as in Example 2 of the main patent.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB106147D DE436176C (en) | 1922-08-22 | 1922-08-22 | Process for the production of solid, permanent, water-soluble coagulations of dyes from the vat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB106147D DE436176C (en) | 1922-08-22 | 1922-08-22 | Process for the production of solid, permanent, water-soluble coagulations of dyes from the vat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE436176C true DE436176C (en) | 1926-10-25 |
Family
ID=6991535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEB106147D Expired DE436176C (en) | 1922-08-22 | 1922-08-22 | Process for the production of solid, permanent, water-soluble coagulations of dyes from the vat |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE436176C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017223369A1 (en) * | 2016-06-22 | 2017-12-28 | Vf Jeanswear Lp | Modified indigo compounds and methods of dyeing a substrate using a modified indigo compound |
-
1922
- 1922-08-22 DE DEB106147D patent/DE436176C/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017223369A1 (en) * | 2016-06-22 | 2017-12-28 | Vf Jeanswear Lp | Modified indigo compounds and methods of dyeing a substrate using a modified indigo compound |
| JP2019524974A (en) * | 2016-06-22 | 2019-09-05 | ブイエフ ジーンズウェア リミティド パートナーシップ | Modified indigo compound and method for dyeing a substrate using the modified indigo compound |
| US11208559B2 (en) | 2016-06-22 | 2021-12-28 | The H.D. Lee Company, Inc. | Modified indigo compounds and methods of dyeing a substrate using a modified indigo compound |
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