CH153403A - Process for the preparation of a vat dye. - Google Patents
Process for the preparation of a vat dye.Info
- Publication number
- CH153403A CH153403A CH153403DA CH153403A CH 153403 A CH153403 A CH 153403A CH 153403D A CH153403D A CH 153403DA CH 153403 A CH153403 A CH 153403A
- Authority
- CH
- Switzerland
- Prior art keywords
- dye
- preparation
- vat
- vat dye
- chlorine
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 4
- 238000002360 preparation method Methods 0.000 title claims description 3
- 239000000984 vat dye Substances 0.000 title description 3
- 239000000975 dye Substances 0.000 claims description 13
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 9
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 5
- 229910052801 chlorine Inorganic materials 0.000 claims description 5
- 239000000460 chlorine Substances 0.000 claims description 5
- 239000012320 chlorinating reagent Substances 0.000 claims description 3
- 239000007859 condensation product Substances 0.000 claims description 3
- 229920000742 Cotton Polymers 0.000 claims description 2
- 238000010521 absorption reaction Methods 0.000 claims description 2
- 239000007858 starting material Substances 0.000 claims description 2
- 239000003086 colorant Substances 0.000 claims 1
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- LQNUZADURLCDLV-UHFFFAOYSA-N nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC=C1 LQNUZADURLCDLV-UHFFFAOYSA-N 0.000 description 4
- 239000011541 reaction mixture Substances 0.000 description 3
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- YBBRCQOCSYXUOC-UHFFFAOYSA-N sulfuryl dichloride Chemical compound ClS(Cl)(=O)=O YBBRCQOCSYXUOC-UHFFFAOYSA-N 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
Landscapes
- Coloring (AREA)
Description
Verfahren zur Darstellung eines Küpenfarbstoffes. Im Hauptpatent Nr. 151329 ist ein Ver fahren zur Darstellung eines wertvollen Küpenfarbstoffes angegeben, bei dem man den nach dem Patentanspruch des Schweiz. Patentes Nr. 143990 aus dem Kondensations produkt aus N-Dihydro-1.2.2'.1'-anthrachinon- azin und Formaldehyd erhältlichen Farbstoff mit einem chlorierend wirkenden Mittel bis zur Aufnahme von etwa zwei Atomen Chlor behandelt.
Es wurde nun gefunden, dass man in analoger Weise einen wertvollen güpenfarbatoff erhalten kann, wenn man den nach dem Patentanspruch des schweizerischen Patentes Nr.143990 aus dem Kondensationsprodukt aus N-Dihydro-1.2.2'.1'-anthrachinonazin und Formaldehyd erhältlichen Farbstoff mit einem chlorierend wirkenden Mittel bis zur Aufnahme von etwa vier Atomen Chlor behandelt.
Der erhaltene Farbstoff färbt Baumwolle aus grünstichigblauer güpe in rotstichiger blauen Tönen als das Ausgangsmaterial. <I>Beispiel 1:</I> Eine Suspension von 10 Teilen des nach der schweizerischen Patentschrift Nr. 143990 hergestellten und durch Fällung seiner Lösung in konzentrierter Schwefelsäure mit einer beschränkten Menge Wasser gereinigten Farb stoffes in 200 Teilen Nitrobenzol wird bei <B>900</B> C mit 24 Teilen Sulfurylchlorid versetzt, worauf das Reaktionsgemisch so lange bei <B>90-950</B> C gerührt wird, bis eine auf gearbeitete Probe erkennen lässt, dass der Farbstoff etwa vier Atome Chlor aufgenommen hat.
Nach dem Erkalten saugt man den aus geschiedenen Farbstoff ab, wäscht ihn mit Benzol und führt ihn in der üblichen Weise in Teigform über.
<I>Beispiel 2:</I> Eine Suspension von 10 Teilen des nach der schweizerischen Patentschrift Nr. 143990 hergestellten und durch Fällung seiner Lösung in konzentrierter Schwefelsäure mit einer beschränkten Menge Wasser gereinigten Farb stoffes in 200 Teilen Nitrobenzol wird bei 90 C mit 16 Teilen Sulfurylchlorid versetzt, worauf das Reaktionsgemisch solange bei 90-95 C gerührt wird, bis eine auf gearbeitete "Probe des Reaktionsgemisches erkennen lässt, dass der Farbstoff etwa vier Atome Chlor aufgenommen hat. Nach dem Erkalten saugt man den ausgeschiedenen Farbstoff ab, wäscht ihn mit Benzol und führt ihn in der üblichen Weise in Teigform über.
Process for the preparation of a vat dye. In the main patent no. 151329 a process is specified for the representation of a valuable vat dye, in which one is after the claim of Switzerland. Patent No. 143990 from the condensation product of N-dihydro-1.2.2'.1'-anthraquinone azine and formaldehyde available dye treated with a chlorinating agent up to the absorption of about two atoms of chlorine.
It has now been found that a valuable güpenfarbenatoff can be obtained in an analogous manner if the dye obtainable from the condensation product of N-dihydro-1.2.2'.1'-anthraquinone azine and formaldehyde is also used treated with a chlorinating agent until it absorbs about four atoms of chlorine.
The dye obtained dyes cotton from a greenish blue güpe in reddish blue tones than the starting material. <I> Example 1: </I> A suspension of 10 parts of the dye prepared according to Swiss Patent No. 143990 and purified by precipitation of its solution in concentrated sulfuric acid with a limited amount of water in 200 parts of nitrobenzene is <B> 900 </B> C is mixed with 24 parts of sulfuryl chloride, whereupon the reaction mixture is stirred at <B> 90-950 </B> C until a processed sample shows that the dye has absorbed about four atoms of chlorine.
After cooling, the separated dye is suctioned off, washed with benzene and converted into dough form in the usual way.
<I> Example 2: </I> A suspension of 10 parts of the dye in 200 parts of nitrobenzene prepared according to Swiss patent specification No. 143990 and purified by precipitation of its solution in concentrated sulfuric acid with a limited amount of water is mixed with 16 Parts of sulfuryl chloride are added, whereupon the reaction mixture is stirred at 90-95 ° C. until a processed sample of the reaction mixture shows that the dye has absorbed about four atoms of chlorine. After cooling, the dye which has separated out is suctioned off and washed with it Benzene and converts it into dough in the usual way.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE153403X | 1929-07-25 | ||
| CH151329T | 1930-07-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH153403A true CH153403A (en) | 1932-03-15 |
Family
ID=25715795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH153403D CH153403A (en) | 1929-07-25 | 1930-07-24 | Process for the preparation of a vat dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH153403A (en) |
-
1930
- 1930-07-24 CH CH153403D patent/CH153403A/en unknown
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