CH292996A - 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
- CH292996A CH292996A CH292996DA CH292996A CH 292996 A CH292996 A CH 292996A CH 292996D A CH292996D A CH 292996DA CH 292996 A CH292996 A CH 292996A
- Authority
- CH
- Switzerland
- Prior art keywords
- chromium
- dyes
- dye
- azo dye
- atom
- 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 5
- 239000002184 metal Substances 0.000 title claims description 5
- 239000000975 dye Substances 0.000 claims description 14
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 12
- 229910052804 chromium Inorganic materials 0.000 claims description 12
- 239000011651 chromium Substances 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 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 7
- 239000002253 acid Substances 0.000 claims description 5
- 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
- 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
- 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
- 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
- -1 2-amino-1-amino oxy-benzene-4-sulfonic acid isopropylamide Chemical compound 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 239000002585 base Chemical class 0.000 description 1
- 150000001555 benzenes Chemical class 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000004359 castor oil Substances 0.000 description 1
- 235000019438 castor oil Nutrition 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
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 239000003960 organic solvent Chemical class 0.000 description 1
- 230000020477 pH reduction Effects 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
- 239000011541 reaction mixture Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 150000003870 salicylic acids Chemical class 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. 1:s wurde gefunden, dass man zu einem reuen, wertvollen, metallhaltigen Azofarbstoff gelangt, wenn man auf ein Gemisch der zwei Monoazofarbstoffe, die den Formeln
EMI0001.0007
entsprechen, chromabgebende Mittel derart einwirken lässt, dass ein chromhaltiger Azo- farbstoff entsteht, der je ein Molekül der zwei Ausgangsmonoazofarbstoffe an ein Chrom atom komplex gebunden enthält.
Der neue metallhaltige Farbstoff ist ein wasserlösliches Pulver, das Wolle aus schwach alkalischem, neutralem oder schwach essigsau rem Bade in braunstiehig grauen Tönen von guter Licht- und Waschechtheit färbt.
Die zwei beim vorliegenden Verfahren als Ausgangsstoffe dienenden Monoazofarbstoffe können nach an sich bekannten Methoden her gestellt werden, indem man diazotiertes 4-Ni- tro=?-amino-l-oxybenzol mit 4-Methyl-2-aeetyl- A -oxvben.-ol und diazotiertes 2-Amino-l- i amino oxvhenzol-4-sulfonsärr.reisopropylamid mit.
1- Carbomethoxyamino-7-ox5maphthalin jeweils irr alkalischem Mittel kuppelt.
Bei der Durchführung des Verfahrens empfiehlt es sieh im allgemeinen, auf ein ins- gesamt aus etwa 2 Mol Monoazofarbstoff be stehendes 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 zum Bei spiel als chromabgebende Mittel für die Durch führung des Verfahrens besonders gut geeig net komplexe Chromverbindungen aliphati- scher oder aromatischer o-Oxycarbonsäuren, welche das Chrom in komplexer Bindung ent halten.
Als Beispiele aromatischer Oxycarbon- säuren könen u. a. diejenigen der Benzolreihe, wie die 4-, 5- oder 6-Methyl-l-oxybenzol-2-car- bonsäure und vor allem die SalicylsäLxre 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 Reaktionsgemi sches, gegebenenfalls in Anwesenheit geeigne ter Zusätze, z. B. in Anwesenheit von Salzen organischer Säuren, von Basen, organisehen Lösungsmitteln oder weiteren, die Komplex bildung fördernden Mitteln.
<I>Beispiel:</I> 3,52 Teile Natriumsalz des Farbstoffes aus diazotiertem 4-Nitro-2-amino-l-oxybenzol und 4- #Methyl-2-acetyl-amino-l-oxybenzol und 4,80 Teile Natriumsalz des Farbstoffes aus diazo- tiertem 2-Amino-7-ox,#-benzol-4-sulfonsätireiso- propylamid und 1-Carbomethoxy-7-oxynapli- tha.lin, beide Farbstoffe in Form einer feuch ten Paste (Filterkuchen),
werden in 300 Tei len Wasser verrührt und mit 25 Teilen einer Lösung von chromsalizylsaurem Natrium-Ka- lium mit einem. Chromgehalt von 2,6 0-o ver setzt. Nach Zugabe von 6 Teilen sulfoniertem Ricinusöl wird das Ganze drei Stunden unter Rüekflussl@ühlung gekoeht. Nach dieser Zeit ist die Metallisierung beendet. Der gebildete Kom plex kann durch Ansäuern mit Essigsäure oder durch Zugabe von Natriumehlorid ab geschieden werden.
Nach der Filtration kann er zweeks Reinigung in 301loiger Natrium- liydroxydlösung gelöst und mit Natriumchlo- rid wieder gefällt. werden.
Process for the production of a metal-containing azo dye. 1: It has been found that a pure, valuable, metal-containing azo dye is obtained if one uses a mixture of the two monoazo dyes that correspond to the formulas
EMI0001.0007
correspond, lets chromium-releasing agents act in such a way that a chromium-containing azo dye is created, which contains one molecule of each of the two starting monoazo dyes bound to a chromium atom in complex.
The new metal-containing dye is a water-soluble powder that dyes wool from weakly alkaline, neutral or weakly acidic baths in brownish gray shades of good lightfastness and washfastness.
The two monoazo dyes used as starting materials in the present process can be prepared by methods known per se by diazotized 4-nitro =? - amino-1-oxybenzene with 4-methyl-2-aeetyl-A-oxvben.-ol and diazotized 2-amino-1-amino oxy-benzene-4-sulfonic acid isopropylamide with.
1- Carbomethoxyamino-7-ox5maphthalene coupled with an alkaline agent.
When carrying out the process, it is generally recommended 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 about 1 mole of each of the two dyes used as starting materials and / or to carry out the metallization in weakly acidic to alkaline means.
For example, complex chromium compounds of aliphatic or aromatic o-oxycarboxylic acids which contain the chromium in complex bonds are particularly suitable as chromium-releasing agents for carrying out the process.
As examples of aromatic oxycarboxylic acids u. a. those of the benzene series, such as 4-, 5- or 6-methyl-1-oxybenzene-2-carboxylic acid, and above all the salicylic acids themselves, are named.
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 cal, optionally in the presence of appro-priate additives such. B. in the presence of salts of organic acids, bases, organic solvents or other agents promoting the complex formation.
<I> Example: </I> 3.52 parts of the sodium salt of the dye from diazotized 4-nitro-2-amino-1-oxybenzene and 4- # methyl-2-acetyl-amino-1-oxybenzene and 4.80 parts of the sodium salt of the dye from diazotized 2-amino-7-ox, # -benzene-4-sulfonsätireisopropylamid and 1-carbomethoxy-7-oxynapli- tha.lin, 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 chromsalicylic acid sodium-potassium with a. Chromium content of 2.6 0-o ver sets. After adding 6 parts of sulfonated castor oil, the whole thing is boiled for three hours with reflux cooling. After this time, the metallization is finished. The complex formed can be separated by acidification with acetic acid or by adding sodium chloride.
After filtration, it can be dissolved in 30% sodium hydroxide solution for two purposes and reprecipitated with sodium chloride. will.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH288729T | 1950-04-21 | ||
| CH292996T | 1951-03-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH292996A true CH292996A (en) | 1953-08-31 |
Family
ID=25732828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH292996D CH292996A (en) | 1950-04-21 | 1951-03-07 | Process for the preparation of a metal-containing azo dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH292996A (en) |
-
1951
- 1951-03-07 CH CH292996D patent/CH292996A/en unknown
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