CH163193A - Process for the preparation of an indigoid vat dye. - Google Patents
Process for the preparation of an indigoid vat dye.Info
- Publication number
- CH163193A CH163193A CH163193DA CH163193A CH 163193 A CH163193 A CH 163193A CH 163193D A CH163193D A CH 163193DA CH 163193 A CH163193 A CH 163193A
- Authority
- CH
- Switzerland
- Prior art keywords
- preparation
- vat dye
- chlorobenzene
- hot
- carried out
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 6
- 238000002360 preparation method Methods 0.000 title claims description 4
- 239000000984 vat dye Substances 0.000 title claims description 4
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 claims description 8
- 238000009833 condensation Methods 0.000 claims description 2
- 230000005494 condensation Effects 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 2
- 239000003086 colorant Substances 0.000 claims 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 claims 1
- 239000000975 dye Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- LQNUZADURLCDLV-UHFFFAOYSA-N nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC=C1 LQNUZADURLCDLV-UHFFFAOYSA-N 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 240000007817 Olea europaea Species 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- CELCMWUXMBTJRP-UHFFFAOYSA-N chlorobenzene;hydrochloride Chemical compound Cl.ClC1=CC=CC=C1 CELCMWUXMBTJRP-UHFFFAOYSA-N 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
Landscapes
- Coloring (AREA)
Description
Verfahren zur Darstellung eines indigoiden Küpenfarbstoffes. Gegenstand vorliegenden Zusatzpatentes ist ein Verfahren zur Darstellung eines indigoiden Küpenfarbstoffes, welches da durch gekennzeichnet ist, dass man<B>1 .</B> 2- Naphtisatin in eine reaktionsfähige a-Ver- bindung überführt und diese mit 6-Methoxy- 3-oxy-l-t.hionapht-en kondensiert.
<I>Beispiel:</I> 20 Gewichtsteile 1.2-Naphtisatin wer den durch Erwärmen mit 24 Gewichtsteilen Pliosphorpentaehlorid in<B>2510</B> Gewichtsteilen Chlorbenzol in das<B>1.</B> 2-Naphtisatin-a-chlorid übergeführt. Zu dieser Emulsion gibt man bei<B>80</B> bis<B>90 '</B> eine warme Lösung von <B>18</B> Gewichtsteilen 6-Methoxy-3-oxy-l-thio- naphten in<B>250</B> Gewichtsteilen Chlorbenzol. Der 6-Methoxy-2-t-hionaphten-6. 7-benz-2-in- dolindigo fällt alsbald kristallin aus.
Durch kurzes Naehheizen auf dem Dampfbad wird die Kondensation zu Ende geführt und der Farbstoff nach dem Erkalten abgesaugt, zu nächst mit etwas Chlorbenzol und alsdann mit Alkohol gewaschen und getrocknet. Er färbt die Faser aus gelber Küpe in oliv grünen Tönen und ist im Zeugdruck gut verwendbar. Er löst sich blau in kon zentrierter Schwefelsäure und rot in heissem Chlorbe,nzol oder heissem Nitrobenzol.
Process for the preparation of an indigoid vat dye. The subject of the present additional patent is a process for the preparation of an indigoid vat dye, which is characterized in that <B> 1. </B> 2- naphthisatin is converted into a reactive α-compound and this is mixed with 6-methoxy- 3- oxy-lt.hionapht-en condensed.
<I> Example: </I> 20 parts by weight of 1.2-naphthisatin are converted into the <B> 1. </B> 2-naphthisatin-a- by heating with 24 parts by weight of pliosphorus pentahalloride in <B> 2510 </B> parts by weight of chlorobenzene chloride transferred. At <B> 80 </B> to <B> 90 '</B>, a warm solution of <B> 18 </B> parts by weight of 6-methoxy-3-oxy-1-thionaphthene is added to this emulsion in <B> 250 </B> parts by weight of chlorobenzene. The 6-methoxy-2-t-hionaphten-6. 7-benz-2-indolindigo soon precipitates in crystalline form.
The condensation is brought to an end by brief heating on the steam bath and the dye is suctioned off after cooling, washed first with a little chlorobenzene and then with alcohol and dried. It dyes the fiber from the yellow vat in olive green tones and is easy to use in fabric printing. It dissolves blue in concentrated sulfuric acid and red in hot chlorine, nzol or hot nitrobenzene.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE163193X | 1931-04-16 | ||
| CH160172T | 1932-04-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH163193A true CH163193A (en) | 1933-07-31 |
Family
ID=25717315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH163193D CH163193A (en) | 1931-04-16 | 1932-04-13 | Process for the preparation of an indigoid vat dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH163193A (en) |
-
1932
- 1932-04-13 CH CH163193D patent/CH163193A/en unknown
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