CH146448A - Process for the preparation of an indigoid vat dye. - Google Patents
Process for the preparation of an indigoid vat dye.Info
- Publication number
- CH146448A CH146448A CH146448DA CH146448A CH 146448 A CH146448 A CH 146448A CH 146448D A CH146448D A CH 146448DA CH 146448 A CH146448 A CH 146448A
- Authority
- CH
- Switzerland
- Prior art keywords
- dye
- preparation
- chloride
- indigoid
- vat dye
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 5
- 238000002360 preparation method Methods 0.000 title claims description 5
- 239000000984 vat dye Substances 0.000 title claims description 4
- 239000000975 dye Substances 0.000 claims description 10
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 2
- 239000000460 chlorine Substances 0.000 claims description 2
- 229910052801 chlorine Inorganic materials 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims description 2
- 238000010409 ironing Methods 0.000 claims description 2
- 239000003960 organic solvent Substances 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 239000004753 textile Substances 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims description 2
- GRWZHXKQBITJKP-UHFFFAOYSA-L dithionite(2-) Chemical compound [O-]S(=O)S([O-])=O GRWZHXKQBITJKP-UHFFFAOYSA-L 0.000 claims 1
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 4
- GRWZHXKQBITJKP-UHFFFAOYSA-N dithionous acid Chemical compound OS(=O)S(O)=O GRWZHXKQBITJKP-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- UHZYTMXLRWXGPK-UHFFFAOYSA-N phosphorus pentachloride Chemical compound ClP(Cl)(Cl)(Cl)Cl UHZYTMXLRWXGPK-UHFFFAOYSA-N 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Landscapes
- Coloring (AREA)
Description
Verfahren zur Darstellung eines indigoiden Küpenfarbstoffes. Im Hauptpatent ist ein Verfahren zur Darstellung eines indigoiden Küpenfarbstoffes beschrieben, das dadurch gekennzeichnet ist, dass 5-Chlor-3-oxythionaphteri mit 5.7-Di- bromisatin-a-chlorid kondensiert wird.
Gegenstand vorliegender Erfindung ist nun ein Verfahren zur Darstellung eines indigoiden Küperifarbstoffes, dadurch gekenn zeichnet, dass 5-Brom-3-oxythioriaphten mit 5 . 7-Dichlorisatiri-a-chlorid kondensiert wird. <I>Beispiel:</I> 216 Gewichtsteile 5 . 7-Dichlorisatin wer den in 3000 Gewichtsteilen Chlorbenzol sus pendiert und nach Zugabe von 225 Gewichts= teilen Phosphorpentachlorid durch Erwärmen in das a-Chlorid verwandelt.
Diese Lösung lässt man in eine warme Lösung von 250 Gewichtsteilen 5-Brom-3-oxythionaphten in 200 Gewichtsteilen Chlorbenzol unter Rühren einlaufen, rührt noch kurze Zeit bei 60 bis 70 C, kühlt auf 50 C ab, filtriert den abgeschiedenen Farbstoff ab, wäscht und trocknet. Der Farbstoff bildet ein violettes, kristallinisches Pulver, das in organischen Lösungsmitteln kaum löslich ist und das etwas rotstichiger als der entsprechende Farb stoff aus 5 . 7-Dibromisatin-a-chlorid ist. Der Farbstoff färbt Textilfasern aus gelber Hy- drosulfitküpe in violetten Tönen von vorzüg licher Chlor-, Wasch-, Licht- und Bügelecht heit an.
Process for the preparation of an indigoid vat dye. The main patent describes a process for the preparation of an indigoid vat dye, which is characterized in that 5-chloro-3-oxythionaphteri is condensed with 5.7-dibromoisatin-a-chloride.
The subject matter of the present invention is a process for the preparation of an indigoid Küperi dye, characterized in that 5-bromo-3-oxythioriaphthene with 5. 7-Dichlorisatiri-a-chloride is condensed. <I> Example: </I> 216 parts by weight 5. 7-Dichlorisatin who suspended in 3000 parts by weight of chlorobenzene and after the addition of 225 parts by weight = parts of phosphorus pentachloride converted into the α-chloride by heating.
This solution is allowed to run into a warm solution of 250 parts by weight of 5-bromo-3-oxythionaphthene in 200 parts by weight of chlorobenzene with stirring, stirred for a short time at 60 to 70 ° C., cooled to 50 ° C., the deposited dye is filtered off, washed and dries. The dye forms a purple, crystalline powder that is hardly soluble in organic solvents and that is a little more reddish than the corresponding dye from 5. 7-dibromoisatin a-chloride. The dye dyes textile fibers from a yellow hydrosulphite vat in violet tones that are particularly fast to chlorine, washing, light and ironing.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE146448X | 1928-06-12 | ||
| CH143716T | 1929-05-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH146448A true CH146448A (en) | 1931-04-15 |
Family
ID=25714348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH146448D CH146448A (en) | 1928-06-12 | 1929-05-15 | Process for the preparation of an indigoid vat dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH146448A (en) |
-
1929
- 1929-05-15 CH CH146448D patent/CH146448A/en unknown
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