CH317765A - Process for the preparation of a new disazo dye - Google Patents
Process for the preparation of a new disazo dyeInfo
- Publication number
- CH317765A CH317765A CH317765DA CH317765A CH 317765 A CH317765 A CH 317765A CH 317765D A CH317765D A CH 317765DA CH 317765 A CH317765 A CH 317765A
- Authority
- CH
- Switzerland
- Prior art keywords
- disazo dye
- parts
- preparation
- coupling
- yellow
- Prior art date
Links
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 title claims description 6
- 238000000034 method Methods 0.000 title claims description 5
- 239000002270 dispersing agent Substances 0.000 claims description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 5
- WQOWBWVMZPPPGX-UHFFFAOYSA-N 2,6-diaminoanthracene-9,10-dione Chemical compound NC1=CC=C2C(=O)C3=CC(N)=CC=C3C(=O)C2=C1 WQOWBWVMZPPPGX-UHFFFAOYSA-N 0.000 claims description 4
- 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
- CWESERWNUIUBJU-UHFFFAOYSA-N 2-(2-chlorophenyl)-5-methyl-4h-pyrazol-3-one Chemical compound O=C1CC(C)=NN1C1=CC=CC=C1Cl CWESERWNUIUBJU-UHFFFAOYSA-N 0.000 claims description 3
- 239000000080 wetting agent Substances 0.000 claims description 3
- 230000002378 acidificating effect Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 230000005012 migration Effects 0.000 claims description 2
- 238000013508 migration Methods 0.000 claims description 2
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 2
- 239000004800 polyvinyl chloride Substances 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 238000009736 wetting Methods 0.000 claims 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000003921 oil Substances 0.000 description 2
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- -1 alkali metal nitrite Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 150000002191 fatty alcohols Chemical class 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 229920000151 polyglycol Polymers 0.000 description 1
- 239000010695 polyglycol Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- 235000010288 sodium nitrite Nutrition 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B35/00—Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
- C09B35/02—Disazo dyes
- C09B35/021—Disazo dyes characterised by two coupling components of the same type
- C09B35/03—Disazo dyes characterised by two coupling components of the same type in which the coupling component is a heterocyclic compound
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
<B>Zusatzpatent</B> zum Hauptpatent Nr. 309180 Verfahren zur Herstellung eines neuen Disazofarbstoffes Es wurde gefunden, dass man zu einem wertvollen, wasserunlöslichen Disazofarbstoff gelangen kann, wenn man tetrazotiertes 2,6- Diaminoanthrachinon beidseitig mit 1-(2'- Chlorphenyl)-3-methyl-5-pyrazolon kuppelt.
Der neue Disazofarbstoff ist in trockenem Zustande ein gelbes Pulver, dass sieh in kon zentrierter Schwefelsäure mit gelber Farbe löst und das, in Polyvinylehlorid eingewalzt, reingelbe Färbungen von sehr guter Migra- tions -und- Lichtechtheit ergibt.
2,6-Diaminoantlirachinon kann man in an sich bekannter Weise, zweckmässig in konzen trierter Schwefelsäure, mittels Alkalinitrit tetrazotieren. Es empfiehlt sich in der Regel, die Tetrazoverbindung abzuscheiden und zu isolieren.
Die Kupplung der so erhältlichen Tetrazo- verbindung mit der .angegebenen Azokompo- nente wird vorteilhaft in schwach saurem, z. B. essigsaurem Medium durchgeführt, wo bei es sich im allgemeinen als zweckmässig erweist, dem Kupplungsgemisch ein Netz- oder Dispergiermittel zuzusetzen. Hierbei kom men Netz- und Dispergiermittel ionogener und nichtionogener Art in Betracht.
Als Disper- giermittel ionogener Art kann beispielsweise Türkischrotöl verwendet werden, und als Dispergiermittel nichtionogener Art seienPoly- glykoläther von höhermolekularen Fettalko holen erwähnt.
Im nachfolgenden Beispiel bedeuten, wo nichts anderes vermerkt wird, die Teile Ge- wichtsteile, die Prozente Gewichtsprozente, 'und die Temperaturen sind in Celsiusgraden angegeben.
<I>Beispiel</I> 400 Teile 98o/oige Schwefelsäure werden auf 0 gekühlt und unter Rühren 28 Teile 100 /oiges Natriumnitrit eingetragen. Man er wärmt dann auf 55 bis 60 , bis klare Lösung eintritt, kühlt dann auf 30 ab und trägt bei 30 bis 40 47,6 Teile 2,6-Diaminoanthrachinon ein. Nach beendetem Eintragen erwärmt man die dicke, gelbe Suspension langsam auf 50 bis 60 , bis wieder klare Lösung eintritt.
Man hält 30 Minuten auf dieser Temperatur, lässt dann auf 30 erkalten und trägt die Lösung auf 600 Teile Eis und 100 Teile Wasser aus. Die Tetrazoverbindung scheidet sich als Sul fat in gelblichweissen Kristallen ab. Man rührt 30 Minuten bei 0 bis 5 , filtriert und presst gut ab.
41,7 Teile 1-(2'-Chlorphenyl)-3-methyl-5- pyrazolon werden mit 30 Teilen 30o/oiger Na-' triumhydroxydlösung in 300 Teilen Wasser bei 30 gelöst. Man fügt ein Dispergierrilittel wie Türkischrotöl hinzu und stellt die Lösung durch Zugabe von Eis und Wasser auf ein Volumen von 800 Teilen und einer Tempera tur von 5 ein.
Dann säuert man mit verdünnter Essig säure bis zur lackmussauren Reaktion an, gibt 60 Teile kristallisiertes Natriumacetat hinzu und lässt unter gutem Rühren in etwa 30 Mi- nuten eine Lösung der Tetrazoverbindung aus 23,8 Teilen 2,6-Diaminoanthrachinon in 1000 Teilen Wasser hinzufliessen. Man rührt zwei Stunden bei 5 bis 8 und erwärmt dann in einer Stunde auf 35 bis 40 und rührt bei dieser Temperatur vier Stunden weiter.
Dann filtriert man, wäscht den Farbstoff salzfrei und trocknet ihn im Vakuum bei 50 bis 60 .
<B> Additional patent </B> to the main patent No. 309180 Process for the production of a new disazo dye It has been found that a valuable, water-insoluble disazo dye can be obtained if tetrazotized 2,6-diaminoanthraquinone on both sides with 1- (2'- Chlorophenyl) -3-methyl-5-pyrazolone couples.
The new disazo dye is a yellow powder when dry, which dissolves in concentrated sulfuric acid with a yellow color and which, when rolled into polyvinyl chloride, gives pure yellow colorations of very good migration and lightfastness.
2,6-Diaminoantlirachinon can be tetrazotized in a manner known per se, expediently in concentrated sulfuric acid, by means of alkali metal nitrite. As a rule, it is advisable to separate and isolate the tetrazo compound.
The coupling of the tetrazo compound thus obtainable with the specified azo component is advantageously carried out in a weakly acidic, e.g. B. acetic acid medium carried out, where it proves to be useful in general to add a wetting agent or dispersant to the coupling mixture. Wetting agents and dispersants of ionic and non-ionic type come into consideration here.
Turkish red oil, for example, can be used as a dispersant of an ionic type, and polyglycol ethers of higher molecular weight fatty alcohols may be mentioned as a dispersant of a non-ionic type.
In the following example, unless otherwise stated, the parts are parts by weight, the percentages are percentages by weight, and the temperatures are given in degrees Celsius.
<I> Example </I> 400 parts of 98% sulfuric acid are cooled to 0 and 28 parts of 100% sodium nitrite are introduced with stirring. It is then warmed to 55 to 60 until a clear solution occurs, then cooled to 30 and 47.6 parts of 2,6-diaminoanthraquinone are added at 30 to 40. After the end of the introduction, the thick, yellow suspension is slowly heated to 50 to 60 until the solution is clear again.
It is kept at this temperature for 30 minutes, then allowed to cool to 30 and the solution is poured onto 600 parts of ice and 100 parts of water. The tetrazo compound separates out as sulphate in yellowish-white crystals. The mixture is stirred for 30 minutes at 0 to 5, filtered and pressed well.
41.7 parts of 1- (2'-chlorophenyl) -3-methyl-5-pyrazolone are dissolved with 30 parts of 30% sodium hydroxide solution in 300 parts of water at 30 °. A dispersant such as Turkish red oil is added and the solution is adjusted to a volume of 800 parts and a temperature of 5 by adding ice and water.
Then acidified with dilute acetic acid until the lacquer acid reaction occurs, 60 parts of crystallized sodium acetate are added and a solution of the tetrazo compound of 23.8 parts of 2,6-diaminoanthraquinone in 1000 parts of water is allowed to flow in over about 30 minutes with thorough stirring. The mixture is stirred for two hours at 5 to 8 and then heated to 35 to 40 in one hour and stirred at this temperature for a further four hours.
It is then filtered, the dye is washed free of salt and dried in vacuo at 50 to 60.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH309180T | 1952-09-12 | ||
| CH317765T | 1952-09-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH317765A true CH317765A (en) | 1956-11-30 |
Family
ID=25735583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH317765D CH317765A (en) | 1952-09-12 | 1952-09-12 | Process for the preparation of a new disazo dye |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH317765A (en) |
-
1952
- 1952-09-12 CH CH317765D patent/CH317765A/en unknown
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