CH184477A - Process for the preparation of a substantive copper-containing azo dye. - Google Patents
Process for the preparation of a substantive copper-containing azo dye.Info
- Publication number
- CH184477A CH184477A CH184477DA CH184477A CH 184477 A CH184477 A CH 184477A CH 184477D A CH184477D A CH 184477DA CH 184477 A CH184477 A CH 184477A
- Authority
- CH
- Switzerland
- Prior art keywords
- copper
- dye
- azo dye
- containing azo
- amino
- Prior art date
Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims description 9
- 239000000987 azo dye Substances 0.000 title claims description 7
- 229910052802 copper Inorganic materials 0.000 title claims description 7
- 239000010949 copper Substances 0.000 title claims description 7
- 238000000034 method Methods 0.000 title claims description 6
- 238000002360 preparation method Methods 0.000 title description 3
- 239000000975 dye Substances 0.000 claims description 16
- -1 nitroazo Chemical group 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Chemical compound OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- GVBHRNIWBGTNQA-UHFFFAOYSA-N 2-methoxy-4-nitroaniline Chemical compound COC1=CC([N+]([O-])=O)=CC=C1N GVBHRNIWBGTNQA-UHFFFAOYSA-N 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- NYGZLYXAPMMJTE-UHFFFAOYSA-M metanil yellow Chemical group [Na+].[O-]S(=O)(=O)C1=CC=CC(N=NC=2C=CC(NC=3C=CC=CC=3)=CC=2)=C1 NYGZLYXAPMMJTE-UHFFFAOYSA-M 0.000 description 2
- DJHGAFSJWGLOIV-UHFFFAOYSA-N Arsenic acid Chemical compound O[As](O)(O)=O DJHGAFSJWGLOIV-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 229940000488 arsenic acid Drugs 0.000 description 1
- 125000000609 carbazolyl group Chemical class C1(=CC=CC=2C3=CC=CC=C3NC12)* 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 229910000365 copper sulfate Inorganic materials 0.000 description 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 1
- UZKWTJUDCOPSNM-UHFFFAOYSA-N methoxybenzene Substances CCCCOC=C UZKWTJUDCOPSNM-UHFFFAOYSA-N 0.000 description 1
- 238000005185 salting out Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 125000000542 sulfonic acid group Chemical group 0.000 description 1
Landscapes
- Coloring (AREA)
Description
Verfahren zur Herstellung eines substantiven kupferhaltigen Azofarbstoffes. In dem Hauptpatent 170768 ist ein Ver fahren zur Darstellung von kupferhaltigen Azofarbstoffen beschrieben worden, welches darin besteht, dass man Trisazofarbstoffe der allgemeinen Formel
EMI0001.0006
worin R, beliebig substituiert sein kann und R2 den Rest einer Komponente der NapUtha- linreihe, welche mindestens eine Sulfonsäure- gruppe enthält, bedeutet,
unter solchen Be dingungen mit kupferabgebenden Mitteln behandelt, dass die in R, in o-Stellung zur Azobrücke befindliche Methoxylgruppe ge spalten wird.
Es wurde nun gefunden, dass. man zu ähnlichen Ergebnissen kommt, wenn man als Ausgangsfarbstoffe des Verfahrens die Pro dukte benutzt, welche durch Reduktion der Monoazofarbstoffe von der folgenden allge meinen Formel
EMI0001.0020
worin R, beliebig substituiert sein kann und RZ den Rest einer Komponente der Naphtha lin- oder Carbazolreihe bedeutet, mit Trau benzucker oder seinen Aquivalenten (wie zum Beispiel arsenige Säure, Formaldehyd)
in ätzalkalischer Lösung entstehen und die. wahrscheinlich die Konstitution von Disazo- azoxyfarbstoffen besitzen. Die Farbstoffe färben Baumwolle in durchweg etwas röte- ren Tönen als die Farbstoffe des Paten res 170768.
Gegenstand des vorliegenden Patentes ist ein Verfahren zur Herstellung eines substan- tiven, kupferhaltigen Azofarbstoffes. Es ist dadurch gekennzeichnet, dass:
man den durch Reduktion mit Traubenzucker in alkalischem Medium erhältlichen Azofarbstoff aus dem Nitroazofarbstoff, der durch alkalische Kupplung von diazotiertem 5-Nitro-2-amino- 1.-methoxy-benzol und 2-(3'-Carboxyphenyl)- amino-8-oxynaphthaIin-6-sulfonsäure erhal ten wird, mit einem kupferabgebenden Mit tel unter solchen Bedingungen behandelt, dass eine Aufspaltung der Methoxylgruppen er folgt.
<I>Beispiel:</I> 58,3 Gewichtsteile des durch alkalische Kupplung gewonnenen Monoazofarbstoffes aus 5-Nitro-2-amino-l-methoxy-benzol und 2- (3'- Carboxyphenyl) - amino -- 8 -oxynaphtha, )in-6-sulfonsäure (Dinatriumsalz)
werden in n000 Gewichtsteilen Wasser auf 65 bis<B>70'</B> erwärmt. Man gibt dann eine Lösung von 13 Gewichtsteilen Traubenzucker in 100 Ge- wichtsteilen Wasser zu und lässt nun schnell 60 Gewichtsteile Natronlauge von<B>38'</B> Be zufliessen. Wenn die Reduktion beendet ist, isoliert man den neuentstandenen Farbstoff auf übliche Weise.
100 Gewichtsteile des oben dargestellten Farbstoffes werden in 5000 Gewichtsteilen Wasser gelöst und nach Zugabe einer Lösung von 30 Gewichtsteilen, kristallisiertem Kup fersulfat und 90 Gewichtsteilen 25%igem Ammoniak in 200 Gewichtsteilen Wasser 15 Stunden unter Rühren auf<B>800</B> erwärmt. Nach dem Aussalzen lässt man erkalten, presst und trocknet.
Der isolierte Farbstoff stellt ein dunkles bronzeglänzendes Pulver dar, das sich in Wasser mit stumpfblauer Farbe löst. Es färbt die Faser in verkochechten grünstickig graublauen Tönen von hoher Lichtechtheit.
Process for the preparation of a substantive copper-containing azo dye. In the main patent 170768 a process for the preparation of copper-containing azo dyes has been described, which consists in the fact that one trisazo dyes of the general formula
EMI0001.0006
where R 1 can be substituted as desired and R 2 denotes the remainder of a component of the naputhalin series which contains at least one sulfonic acid group,
treated with copper-donating agents under such conditions that the methoxyl group in R, in the o-position to the azo bridge is cleaved.
It has now been found that similar results are obtained if the starting dyes used for the process are the products which have the following general formula by reducing the monoazo dyes
EMI0001.0020
where R, can be substituted as desired and RZ is the remainder of a component of the naphtha lin or carbazole series, with gray sugar or its equivalents (such as arsenic acid, formaldehyde)
arise in caustic solution and the. probably have the constitution of disazoazoxy dyes. The dyes generally dye cotton in slightly redder tones than the dyes of patent 170768.
The subject of the present patent is a process for the production of a substantial, copper-containing azo dye. It is characterized in that:
the azo dye obtainable by reduction with grape sugar in an alkaline medium from the nitroazo dye, which is obtained by alkaline coupling of diazotized 5-nitro-2-amino-1.-methoxy-benzene and 2- (3'-carboxyphenyl) -amino-8-oxynaphthalene -6-sulfonic acid is obtained, treated with a copper-releasing agent under such conditions that the methoxyl groups are split up.
<I> Example: </I> 58.3 parts by weight of the monoazo dye obtained by alkaline coupling from 5-nitro-2-amino-1-methoxy-benzene and 2- (3'-carboxyphenyl) -amino-8 -oxynaphtha, ) in-6-sulfonic acid (disodium salt)
are heated in n000 parts by weight of water to 65 to <B> 70 '</B>. A solution of 13 parts by weight of grape sugar in 100 parts by weight of water is then added and 60 parts by weight of sodium hydroxide solution of 38 'Be are now rapidly added. When the reduction is complete, the newly formed dye is isolated in the usual way.
100 parts by weight of the dye shown above are dissolved in 5000 parts by weight of water and, after the addition of a solution of 30 parts by weight of crystallized copper sulfate and 90 parts by weight of 25% ammonia in 200 parts by weight of water, heated to 800 for 15 hours with stirring. After salting out, it is left to cool, pressed and dried.
The isolated dye is a dark, shiny bronze powder that dissolves in water with a dull blue color. It dyes the fiber in overcooked greenish gray-blue shades of high lightfastness.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH170768T | 1933-08-19 | ||
| US184477XA | 1933-08-24 | 1933-08-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH184477A true CH184477A (en) | 1936-05-31 |
Family
ID=25718988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH184477D CH184477A (en) | 1933-08-19 | 1934-08-23 | Process for the preparation of a substantive copper-containing azo dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH184477A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU706389B2 (en) * | 1995-08-25 | 1999-06-17 | Aptar Group, Inc. | Dispensing valve closure with inner seal |
-
1934
- 1934-08-23 CH CH184477D patent/CH184477A/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU706389B2 (en) * | 1995-08-25 | 1999-06-17 | Aptar Group, Inc. | Dispensing valve closure with inner seal |
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