CH292671A - Process for the preparation of a metal-containing azo dye. - Google Patents
Process for the preparation of a metal-containing azo dye.Info
- Publication number
- CH292671A CH292671A CH292671DA CH292671A CH 292671 A CH292671 A CH 292671A CH 292671D A CH292671D A CH 292671DA CH 292671 A CH292671 A CH 292671A
- Authority
- CH
- Switzerland
- Prior art keywords
- chromium
- dyes
- process according
- metal
- dye
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 11
- 239000000987 azo dye Substances 0.000 title claims description 8
- 229910052751 metal Inorganic materials 0.000 title claims description 6
- 239000002184 metal Substances 0.000 title claims description 6
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 14
- 229910052804 chromium Inorganic materials 0.000 claims description 14
- 239000000975 dye Substances 0.000 claims description 14
- 239000011651 chromium Substances 0.000 claims description 12
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- 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 claims description 5
- 239000002253 acid Substances 0.000 claims description 4
- 150000001845 chromium compounds Chemical class 0.000 claims description 4
- 230000002378 acidificating effect Effects 0.000 claims description 3
- 125000003118 aryl group Chemical group 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 240000007817 Olea europaea Species 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 230000007935 neutral effect Effects 0.000 claims description 2
- 239000004552 water soluble powder Substances 0.000 claims description 2
- 210000002268 wool Anatomy 0.000 claims description 2
- 230000008030 elimination Effects 0.000 claims 1
- 238000003379 elimination reaction Methods 0.000 claims 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 150000007513 acids Chemical class 0.000 description 2
- 238000001465 metallisation Methods 0.000 description 2
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 159000000000 sodium salts Chemical class 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 150000001555 benzenes Chemical class 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000009918 complex formation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 1
- BITYAPCSNKJESK-UHFFFAOYSA-N potassiosodium Chemical compound [Na].[K] BITYAPCSNKJESK-UHFFFAOYSA-N 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 229960004889 salicylic acid Drugs 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Coloring (AREA)
Description
Verfahren zur Herstellung eines metallhaltigen Azofarbstoffes. Es wurde gefunden, dass man zu einem neuen, wertvollen, metallhaltigen Azofarbstoff gelangt, wenn man auf ein Gemisch der zwei Monoazofarbstoffe, die den Formeln
EMI0001.0006
entsprechen, chromabgebende Mittel derart einwirken lässt, dass ein chromhaltiger Azo- farbstoff entsteht, der je ein Molekül der zwei Ausgangssmonoazasfarbstoffe an ein Chromatom komplex gebunden enthält.
Der neue metallhaltige Farbstoff ist ein wasserlösliches Pulver, das Wolle aus schwach alkalisehem, neutralem oder sehwach essig saurem Bade in schwärzlich oliven Tönen von guter Licht- und Wasehechtheit färbt..
Die zwei beim vorliegenden Verfahren als Ausgangsstoffe dienenden Monoazofarbstoffe können nach an sich bekannten Methoden hergestellt werden, indem man diazotiertes 4- Nitro-6-,ehlor-2-amino-1.-oxybenzol mit 4-Me- thyl-2-acetylamino-l-oxybenzol und diazotier- tes 2-Amino-l-oxybenzol-4-sulfonsäureamidmit 1-n-Buty rylamino-7-oxynaphthalin jeweils in alkalischem Mittel kuppelt..
Bei der Durchführung des Verfahrens empfiehlt es sich im ,allgemeinen, auf ein insgesamt aus etwa 2 Mol Monoazofarbstoff bestehendes und je etwa 1 Mol der beiden als Ausgangsstoffe verwendeten Farbstoffe ent- haltendes Gemisch eine etwa ein Grammatom Chrom enthaltende Menge eines chromabge benden Mittels zu verwenden und/oder die Metallisierung in schwach saurem bis alkali schem Mittel auszuführen. Es sind z.
B. als chromabgebende Mittel für die Durchführung des Verfahrens besonders gut geeignet kom plexe Chromverbindungen aliphatischer oder aromatischer o-Oxycarbonsäuren, welche das Chrom in komplexer Bindung enthalten. Als Beispiele aromatischer Oxycarbonsäuren kön nen unter anderem diejenigen der Benzol reihe wie die 4-, 5- oder 6-Methyl-l-oxyben-- zol-2-carbonsäure und vor allem die Salicyl- säure selbst genannt werden.
Die Umwandlung der Farbstoffe in die komplexen Chromverbindungen geschieht mit Vorteil in der Wärme, offen oder unter Druck, z. B. bei Siedetemperatur des Reak- tionsgemisches, .gegebenenfalls in Anwesen heit geeigneter Zusätze, z. B. in Anwesenheit von Salzen organischer Säuren,- von Basen, organischen Lösungsmitteln oder weiteren die Komplexbildung fördernden Mitteln.
Beispiel: 3,72 Teile Natriumsalz des Farbstoffes aus diazotiertem 4-Nitro-6-chlor-2-amino-l-oxyben- zol und 4-Methyl-2-acetylamino-l-oxybenzol und 4,5 Teile Natriumsalz des Farbstoffes aus diazotiertem 2-Amino-l-oxybenzol-4-sulfon- säureamid und 1-n-Butyrylamino-7-oxynaph- thalin, beide Farbstoffe in Form einer feuch ten Paste (Filterkuchen),
werden in 300 Tei len Wasser verrührt und mit 25 Teilen einer Lösung von ehromsalieylsaurem Natrium-Ka- lium mit. einem Chromgehalt von 2,6 % ver- setzt. Nach Zugabe von 6 Teilen sulfoniertem Rieinusöl wird das Ganze drei Stunden unter Riickflusskühlung gekoelit. Nach dieser Zeit ist. die Metallisierun;- beendet.
Der gebildete Komplex kann dureli Ansäuern mit. Essig säure oder dureli Zugabe von Natriumehlorid abgeschieden werden. Nach der Filtration kann er zwecks Reinigung in 30 ioiger Na- tr iumhy droxy dlösung gelöst und mit N atr ium- chlorid wieder gefällt. werden.
Process for the production of a metal-containing azo dye. It has been found that a new, valuable, metal-containing azo dye is obtained by using a mixture of the two monoazo dyes that correspond to the formulas
EMI0001.0006
correspond, lets chromium-releasing agents act in such a way that a chromium-containing azo dye is formed which contains one molecule of each of the two starting monoazase dyes complexed to a chromium atom.
The new metal-containing dye is a water-soluble powder that dyes wool from a weakly alkaline, neutral or weakly acidic bath in blackish olive tones with good light and wash fastness.
The two monoazo dyes used as starting materials in the present process can be prepared by methods known per se by mixing diazotized 4-nitro-6-, chloro-2-amino-1.-oxybenzene with 4-methyl-2-acetylamino-l -oxybenzene and diazotized 2-amino-1-oxybenzene-4-sulfonic acid amide with 1-n-buty rylamino-7-oxynaphthalene, each in an alkaline medium.
When carrying out the process, it is generally advisable to use an amount of chromium-releasing agent containing about one gram atom of chromium for a total of about 2 moles of monoazo dye and each containing about 1 mole of the two dyes used as starting materials / or perform the metallization in weakly acidic to alkaline means. There are z.
B. particularly well suited as a chromium donor for carrying out the process kom complex chromium compounds of aliphatic or aromatic o-oxycarboxylic acids, which contain the chromium in complex bonds. Examples of aromatic oxycarboxylic acids include those of the benzene series such as 4-, 5- or 6-methyl-1-oxybenzene-2-carboxylic acid and, above all, salicylic acid itself.
The conversion of the dyes into the complex chromium compounds takes place with advantage in the heat, open or under pressure, z. B. at the boiling point of the reaction mixture, if necessary in the presence of suitable additives, z. B. in the presence of salts of organic acids, - of bases, organic solvents or other agents promoting complex formation.
Example: 3.72 parts of the sodium salt of the dye from diazotized 4-nitro-6-chloro-2-amino-1-oxybenzene and 4-methyl-2-acetylamino-1-oxybenzene and 4.5 parts of the sodium salt of the dye from diazotized 2-Amino-1-oxybenzene-4-sulfonic acid amide and 1-n-butyrylamino-7-oxynaphthalene, both dyes in the form of a moist paste (filter cake),
are stirred in 300 parts of water and mixed with 25 parts of a solution of Ehromsalieylsaurem sodium-potassium with. a chromium content of 2.6%. After adding 6 parts of sulphonated Rieinusöl the whole thing for three hours under reflux cooling. After that time is. the metallization - finished.
The complex formed can be acidified with dureli. Acetic acid or by adding sodium chloride to be deposited. After filtration, it can be dissolved in 30% sodium hydroxide solution for purification and reprecipitated with sodium chloride. will.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH288729T | 1950-04-21 | ||
| CH292671T | 1950-04-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH292671A true CH292671A (en) | 1953-08-15 |
Family
ID=25732825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH292671D CH292671A (en) | 1950-04-21 | 1950-04-21 | Process for the preparation of a metal-containing azo dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH292671A (en) |
-
1950
- 1950-04-21 CH CH292671D patent/CH292671A/en unknown
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