CH151966A - Process for the preparation of a dye. - Google Patents
Process for the preparation of a dye.Info
- Publication number
- CH151966A CH151966A CH151966DA CH151966A CH 151966 A CH151966 A CH 151966A CH 151966D A CH151966D A CH 151966DA CH 151966 A CH151966 A CH 151966A
- Authority
- CH
- Switzerland
- Prior art keywords
- dye
- preparation
- carbazolyl
- ethyl
- amino
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 4
- 238000002360 preparation method Methods 0.000 title claims description 4
- 239000000975 dye Substances 0.000 claims description 10
- 238000009835 boiling Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 229940005561 1,4-benzoquinone Drugs 0.000 claims description 2
- 229920000742 Cotton Polymers 0.000 claims description 2
- 229920000297 Rayon Polymers 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims description 2
- 210000002268 wool Anatomy 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 125000000020 sulfo group Chemical group O=S(=O)([*])O[H] 0.000 description 1
Landscapes
- Coloring (AREA)
- Paper (AREA)
Description
Verfahren zur Darstellung eines Farbstoffes. Gegenstand dieses Patentes ist ein Ver fahren zur Darstellung eines Farbstoffes, wel ches dadurch gekennzeichnet ist, dass man den aus 2.5-Di-(N-äthyl-carbazolyl-3'-amino)- 3.6-dichlor-1.4-benzochirron durch Erhitzen in einem hochsiedenden Lösungsmittel gemäss Schweizer Patent Nr. 148120 erhältlichen Farbstoff mit konzentrierter Schwefelsäure bei 80-100 C während mehrerer Stunden sulfiert.
<I>Beispiel:</I> In 25 Gewichtsteilen konzentrierter Schwe felsäure wird bei gewöhnlicher Temperatur 1 Gewichtsteil des aus 2.5-Di-(N-äthyl-car- bazolyl-3'-amino) -3. 6-dicblor-1.4-benzochinon durchErhitzen in einernhochsiedenden Lösungs mittel gemäss Schweizer Patent Nr. 148120 er- bältlichen Farbstoffes eingetragen, langsam auf etwa<B>801</B> C erhitzt und mehrere Stunden bei etwa 80-100 C gehalten.
Nach dem Abkühlen giesst man die Lösung auf ein Ge misch von 25 Gewichtsteilen Eis und 25 Ge wichtsteilen Wasser, saugt ab und wäscht mit .Kochsalzlösung nach. Man erhält auf diese Weise eine Farbstoffsulfosäure, die etwa drei Sulfogruppen enthält, sich in Wasser mit blauer Farbe löst und Wolle, Seide, Baum wolle, Viskose, Mischgewebe und Papier in schönen blauen Tönen sehr lichtecht färbt.
Process for the preparation of a dye. The subject of this patent is a process for the preparation of a dye, wel Ches is characterized in that one of 2.5-di- (N-ethyl-carbazolyl-3'-amino) - 3.6-dichloro-1.4-benzochirron by heating in one High-boiling solvent according to Swiss patent no. 148120 available dye with concentrated sulfuric acid at 80-100 C for several hours sulfated.
<I> Example: </I> In 25 parts by weight of concentrated sulfuric acid, 1 part by weight of 2.5-di- (N-ethyl-carbazolyl-3'-amino) -3. 6-dicblor-1,4-benzoquinone added by heating in a high-boiling solvent according to Swiss Patent No. 148120 dye obtainable, slowly heated to about 801 C and kept at about 80-100 C for several hours.
After cooling, the solution is poured into a mixture of 25 parts by weight of ice and 25 parts by weight of water, filtered off with suction and washed with saline solution. In this way, a dye sulfonic acid is obtained which contains about three sulfo groups, dissolves in water with a blue color and dyes wool, silk, cotton, viscose, mixed fabrics and paper in beautiful blue tones very lightfast.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE151966X | 1928-06-06 | ||
| CH151966T | 1929-05-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH151966A true CH151966A (en) | 1932-01-15 |
Family
ID=25715917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH151966D CH151966A (en) | 1928-06-06 | 1929-05-30 | Process for the preparation of a dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH151966A (en) |
-
1929
- 1929-05-30 CH CH151966D patent/CH151966A/en unknown
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