CH313118A - Process for the preparation of a chromium-containing polyazo dye of the stilbene series - Google Patents
Process for the preparation of a chromium-containing polyazo dye of the stilbene seriesInfo
- Publication number
- CH313118A CH313118A CH313118DA CH313118A CH 313118 A CH313118 A CH 313118A CH 313118D A CH313118D A CH 313118DA CH 313118 A CH313118 A CH 313118A
- Authority
- CH
- Switzerland
- Prior art keywords
- chromium
- polyazo dye
- parts
- preparation
- stilbene series
- Prior art date
Links
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 title claims description 11
- -1 polyazo Polymers 0.000 title claims description 11
- 229910052804 chromium Inorganic materials 0.000 title claims description 9
- 239000011651 chromium Substances 0.000 title claims description 9
- PJANXHGTPQOBST-UHFFFAOYSA-N stilbene Chemical class C=1C=CC=CC=1C=CC1=CC=CC=C1 PJANXHGTPQOBST-UHFFFAOYSA-N 0.000 title claims description 6
- 238000000034 method Methods 0.000 title claims description 4
- 239000000975 dye Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 3
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 239000010985 leather Substances 0.000 claims 1
- 239000000243 solution Substances 0.000 description 7
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 2
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 1
- PJANXHGTPQOBST-VAWYXSNFSA-N Stilbene Natural products C=1C=CC=CC=1/C=C/C1=CC=CC=C1 PJANXHGTPQOBST-VAWYXSNFSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000004532 chromating Methods 0.000 description 1
- 150000008049 diazo compounds Chemical class 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- KIEOKOFEPABQKJ-UHFFFAOYSA-N sodium dichromate Chemical compound [Na+].[Na+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O KIEOKOFEPABQKJ-UHFFFAOYSA-N 0.000 description 1
- 235000010288 sodium nitrite Nutrition 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 235000021286 stilbenes Nutrition 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Landscapes
- Coloring (AREA)
Description
Verfahren zur Herstellung eines chromhaltigen Polyazofarbstoffes der Stilbenreihe Gegenstand des vorliegenden Patentes ist ein Verfahren zur Herstellung eines chrom- haltigen Polyazofarbstoffes der Stilbenreihe,
EMI0001.0007
vereinigt, auf das Kupplungsprodukt 1 Mol diazotierte 2-Amino-l-oxybenzol-4-sulfonsäure einwirken lässt und den erhaltenen Polyazo- farbstoff mit einem chromabgebenden Mittel behandelt.
Der neue, chromhaltige Polyazofarbstoff der Stilbenreihe ist ein braunes Pulver, das sich in Wasser mit orangebrauner Farbe löst
EMI0001.0016
werden in Form des Natriumsalzes in 1000 Teilen Wasser gelöst und durch Zugabe einer Lösung von 7 Teilen Natriumnitrit in 20 Tei len Wasser und 30 Teilen 30%iger Salzsäure bei 10-15 diazotiert. Die Diazosuspension lässt man zu einer eisgekühlten Lösung aus 11 Teilen.
1,3-Dioxybenzol, 40 Teilen Natrium- carbonat und 200 Teilen Wasser fliessen. Hier auf fügt man der Kupplungslösung vorerst weitere 40 Teile Natriumcarbonat und hernach die Diazoverbindung aus 18,9 Teilen 2-Amino- 1-oxybenzol-4-sulfonsäure zu. Nach beendigter welches darin besteht, dass man 1 Mol 1,3 Dioxybenzol mit dem Diazokörper aus 1 Mol der Aminodisazoverbindung der Formel und Chromvelourleder in gelbstickig braunen, schleifechten Tönen färbt.
Im nachfolgenden Beispiel bedeuten die Teile Gewichtsteile und die Prozente Gewichts prozente.
<I>Beispiel</I> 64,3 Teile der Aminodisazoverbindung der Zusammensetzung Kupplung wird der erhaltene Polyazofarb- stoff durch Zusatz von Natriumchlorid aus der Lösung ausgefällt und abfiltriert.
Zur Metallisierung des Polyazofarbstoffes löst man den feuchten Filterkuchen in 1000 Teilen Wasser von 65 , fügt der Lösung 20 Teile Natriumacetat und eine konzentrierte wässrige Lösung von 30 Teilen Natriumbichro- mat hinzu und rührt die Chromierungslösung während 3 Stunden bei 65-70 . Der chrom- haltige Polyazofarbstoff wird durch Zugabe von Natriumchlorid aus der Lösung ausgefällt, von derselben abfiltriert und getrocknet.
Er ist ein braunes Pulver, das sieh in Wasser mit orangebrauner Farbe löst und Chromvelour- leder in gelbstiehig braunen, schleifechten Tönen färbt.
Process for the production of a chromium-containing polyazo dye of the stilbene series The subject of the present patent is a process for the production of a chromium-containing polyazo dye of the stilbene series,
EMI0001.0007
combined, allowed to act on the coupling product 1 mol of diazotized 2-amino-1-oxybenzene-4-sulfonic acid and treated the resulting polyazo dye with a chromium donating agent.
The new, chromium-containing polyazo dye from the stilbene range is a brown powder that dissolves in water with an orange-brown color
EMI0001.0016
are dissolved in 1000 parts of water in the form of the sodium salt and diazotized at 10-15 by adding a solution of 7 parts of sodium nitrite in 20 parts of water and 30 parts of 30% hydrochloric acid. The diazo suspension is added to an ice-cold solution of 11 parts.
1,3-Dioxybenzene, 40 parts of sodium carbonate and 200 parts of water flow. At this point, a further 40 parts of sodium carbonate are first added to the coupling solution and then the diazo compound from 18.9 parts of 2-amino-1-oxybenzene-4-sulfonic acid is added. After completion, which consists in dyeing 1 mole of 1,3 dioxybenzene with the diazo body of 1 mole of the aminodisazo compound of the formula and chrome suede in yellowish-brown, abrasive shades.
In the following example, the parts are parts by weight and the percentages are percentages by weight.
<I> Example </I> 64.3 parts of the aminodisazo compound with the composition coupling, the polyazo dye obtained is precipitated from the solution by adding sodium chloride and filtered off.
To metallize the polyazo dye, the moist filter cake is dissolved in 1000 parts of water of 65, 20 parts of sodium acetate and a concentrated aqueous solution of 30 parts of sodium bichromate are added to the solution, and the chromating solution is stirred at 65-70 for 3 hours. The chromium-containing polyazo dye is precipitated from the solution by adding sodium chloride, filtered off and dried.
It is a brown powder that dissolves in water with an orange-brown color and dyes chrome suede in yellowish-brown, abrasion-resistant tones.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH312189T | 1952-12-24 | ||
| CH313118T | 1952-12-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH313118A true CH313118A (en) | 1956-03-15 |
Family
ID=25735897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH313118D CH313118A (en) | 1952-12-24 | 1952-12-24 | Process for the preparation of a chromium-containing polyazo dye of the stilbene series |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH313118A (en) |
-
1952
- 1952-12-24 CH CH313118D patent/CH313118A/en unknown
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