CH185347A - Process for the preparation of a chromium complex compound of an azo dye. - Google Patents
Process for the preparation of a chromium complex compound of an azo dye.Info
- Publication number
- CH185347A CH185347A CH185347DA CH185347A CH 185347 A CH185347 A CH 185347A CH 185347D A CH185347D A CH 185347DA CH 185347 A CH185347 A CH 185347A
- Authority
- CH
- Switzerland
- Prior art keywords
- complex compound
- chromium complex
- preparation
- azo dye
- azo
- Prior art date
Links
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 title claims description 8
- 229910052804 chromium Inorganic materials 0.000 title claims description 8
- 239000011651 chromium Substances 0.000 title claims description 8
- 150000001875 compounds Chemical class 0.000 title claims description 7
- 239000000987 azo dye Substances 0.000 title claims description 6
- 238000000034 method Methods 0.000 title claims description 6
- 239000000975 dye Substances 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 210000002268 wool Anatomy 0.000 claims description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 125000003277 amino group Chemical group 0.000 description 4
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 150000008049 diazo compounds Chemical class 0.000 description 4
- 125000003118 aryl group Chemical group 0.000 description 3
- KLMTYBQNDWYZBK-UHFFFAOYSA-N 4-amino-3-(dimethylamino)benzenesulfonic acid Chemical compound CN(C)C1=CC(S(O)(=O)=O)=CC=C1N KLMTYBQNDWYZBK-UHFFFAOYSA-N 0.000 description 2
- 125000002252 acyl group Chemical group 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- -1 metal complex compounds Chemical class 0.000 description 2
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- QOWZHEWZFLTYQP-UHFFFAOYSA-K chromium(3+);triformate Chemical compound [Cr+3].[O-]C=O.[O-]C=O.[O-]C=O QOWZHEWZFLTYQP-UHFFFAOYSA-K 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 210000000548 hind-foot Anatomy 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 235000010288 sodium nitrite Nutrition 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Landscapes
- Coloring (AREA)
Description
Verfahren zur Herstellung einer Chromkomplegverbindung eines Azofarbstoffes. Den bisher bekanntgewordenen Metall komplexverbindungen von Azofarbstoffen lie gen im allgemeinen Azoverbindungen zu grunde, die durch Kuppeln von diazotierten aromatischen o-Amino-oxy- bezw. o-Amino- earboxyverbindungen mit solchen Kupplungs komponenten hergestellt werden,
die in o- Stellung zur Kupplungsstelle eine Hydroxyl- oder Aminogruppe enthalten.
Es wurde nun gefunden, dass man zu neuen Metallkomplexverbindungen gelangt, wenn man solche Azoverbindungen in Sub stanz oder auf der Faser mit metallabgeben den Mitteln behandelt, die in dem Rest der zu ihrem Aufbau benutzten Diazoverbindung an Stelle der o-ständigen Hydroxyl- bezw. Carboxylgruppe eine Aminogruppe enthalten; deren Wasserstoffatome beliebig durch Al kyl, Aryl- oder Acylgruppen substituiert sein <B>können.</B>
Derartige Azoverbindungen lassen sich auf verschiedenen Wegen darstellen. Man kann zum Beispiel von solchen Diazoverbin- dungen ausgehen, die in o-Stellung zur Diazo- gruppe eine Aminogruppe enthalten, deren beide Wasserstoffatome beliebig durch Alkyl, Aryl- oder Acylgruppen substituiert sind, oder auch beispielsweise von solchen Diazo- verbindungen,
die in o-Stellung eine Nitro- gruppe oder ein Halogenatom enthalten, die nach erfolgter Farbstoffbildung nach bekann ten Methoden in die Aminogruppe überge führt werden (vergl. Schweizer. Patentschrift Nr. 175357).
Die so erhältlichen schwermetallkomplex- haltigen wasserlöslichen Azofarbstoffe liefern im allgemeinen Färbungen von sehr guten Echtheitseigenschaften, während die wasser unlöslichen wertvolle Pigmente sind.
Gegenstand des vorliegenden Patentes ist ein Verfahren zur Herstellung einer Chrom komplexverbindung eines Azofarbstoffes. Es ist dadurch gekennzeichnet, -dass mau den Farbstoff 2-Dimethylamino-l-amino-benzol- 4- sulfonsäure - azo -1-(3'- sulfamidphenyl)- 3- methyl-5-pyrazolon mit einem cbromabgeber)- den Mittel behandelt.
<I>Beispiel:</I> 21,6 Gewichtsteile 2-Dimetliylamino-l- aminobenzol-4-sulfonsäure werden in üblicher Weise mit 6,9 Gewichtsteilen Natriumnitrit bei Gegenwart von Salzsäure dianotiert. Die gelbe Diazoverbindung lässt man alsdann ein laufen in eine alkalische Suspension von 25,3 Gewichtsteilen 1-(3'-Sulfamidphenyl)-3- methyl-5-pyrazolon. Ist die Kupplung beendet, saugt man den abgeschiedenen Farbstoff ab, verrührt ihn mit ?00 cms heissem Wasser, versetzt das Gemisch mit 15 Gewichtsteilen Salzsäure (spez. Gewicht 1,152),
saugt den Farbstoff abermals ab und kocht ihn in 600 Gewichtsteilen Wasser mit einer Chromfor- miatlösung entsprechend 9,6 Gewichtsteilen Crz0a 6 Stunden lang unter. Rückfuss. Die Lösung wird alsdann heiss filtriert. Beim Er- kalten scheidet sich die. Chromkomplexver- bindung ab. Sie wird abgesaugt, nach be kannten Methoden in das Natriumsalz über geführt, aufgearbeitet und getrocknet. Man erhält eine Chromkomplexverbindung, die Wolle aus saurem Bade in gelben Tönen von guten Echtheitseigenschaften färbt.
Process for the preparation of a chromium complex of an azo dye. The previously known metal complex compounds of azo dyes lie conditions in general azo compounds based, respectively, by coupling of diazotized aromatic o-amino-oxy. o-Amino earboxy compounds are produced with such coupling components,
which contain a hydroxyl or amino group in the o-position to the coupling point.
It has now been found that new metal complex compounds are obtained if such azo compounds are treated in substance or on the fiber with metal donating agents that are in the remainder of the diazo compound used for their construction in place of the o-position hydroxyl or. Carboxyl group contain an amino group; the hydrogen atoms of which can be substituted as desired by alkyl, aryl or acyl groups
Such azo compounds can be prepared in various ways. One can, for example, start from those diazo compounds which contain an amino group in the o-position to the diazo group, the two hydrogen atoms of which are optionally substituted by alkyl, aryl or acyl groups, or, for example, from such diazo compounds,
which contain a nitro group or a halogen atom in the o-position which, after dye formation has taken place, are converted into the amino group by known methods (cf. Swiss Patent No. 175357).
The water-soluble azo dyes containing heavy metal complexes obtainable in this way generally provide dyeings with very good fastness properties, while the water-insoluble ones are valuable pigments.
The present patent relates to a process for the production of a chromium complex compound of an azo dye. It is characterized in that the dye 2-dimethylamino-1-amino-benzene- 4-sulfonic acid - azo -1- (3'-sulfamidophenyl) - 3-methyl-5-pyrazolone with a cbromabgeber) - treated the agent .
<I> Example: </I> 21.6 parts by weight of 2-dimethylamino-1-aminobenzene-4-sulfonic acid are dianotized in the usual manner with 6.9 parts by weight of sodium nitrite in the presence of hydrochloric acid. The yellow diazo compound is then run into an alkaline suspension of 25.3 parts by weight of 1- (3'-sulfamidophenyl) -3-methyl-5-pyrazolone. When the coupling has ended, the deposited dye is suctioned off, stirred with 00 cms of hot water, and the mixture is treated with 15 parts by weight of hydrochloric acid (specific weight 1.152)
The dye is again suctioned off and boiled in 600 parts by weight of water with a chromium formate solution corresponding to 9.6 parts by weight of Crz0a for 6 hours. Hindfoot. The solution is then filtered hot. When it cools, it separates. Chromium complex compound. It is filtered off with suction, passed into the sodium salt by known methods, worked up and dried. A chromium complex compound is obtained which dyes wool from an acid bath in yellow shades with good fastness properties.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE185347X | 1934-03-17 | ||
| CH182960T | 1935-03-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH185347A true CH185347A (en) | 1936-07-15 |
Family
ID=25720806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH185347D CH185347A (en) | 1934-03-17 | 1935-03-08 | Process for the preparation of a chromium complex compound of an azo dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH185347A (en) |
-
1935
- 1935-03-08 CH CH185347D patent/CH185347A/en unknown
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