CH142155A - Process for the preparation of a water-insoluble azo dye. - Google Patents
Process for the preparation of a water-insoluble azo dye.Info
- Publication number
- CH142155A CH142155A CH142155DA CH142155A CH 142155 A CH142155 A CH 142155A CH 142155D A CH142155D A CH 142155DA CH 142155 A CH142155 A CH 142155A
- Authority
- CH
- Switzerland
- Prior art keywords
- water
- azo dye
- insoluble azo
- preparation
- carboxylic acid
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 7
- 239000000987 azo dye Substances 0.000 title claims description 5
- 239000000975 dye Substances 0.000 claims description 7
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 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
- 239000000835 fiber Substances 0.000 claims description 4
- 229920000742 Cotton Polymers 0.000 claims description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 2
- 150000008049 diazo compounds Chemical class 0.000 claims description 2
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 239000000758 substrate Substances 0.000 claims description 2
- YXFVVABEGXRONW-UHFFFAOYSA-N toluene Substances CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- 239000012670 alkaline solution Substances 0.000 description 2
- 125000000751 azo group Chemical group [*]N=N[*] 0.000 description 2
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- QPKNFEVLZVJGBM-UHFFFAOYSA-N 2-aminonaphthalen-1-ol Chemical class C1=CC=CC2=C(O)C(N)=CC=C21 QPKNFEVLZVJGBM-UHFFFAOYSA-N 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 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 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- UIIMBOGNXHQVGW-UHFFFAOYSA-N sodium;hydron;carbonate Chemical compound [Na+].OC(O)=O UIIMBOGNXHQVGW-UHFFFAOYSA-N 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Coloring (AREA)
Description
Verfahren zur Darstellung eines wasserunlöslichen Azofarbstoffes. Beim Umsetzen von 2.6 Dioxynaphtalin- 3-carbonsäure mit Ammoniak oder Aminen, welche am Stickstoff mindestens noch ein reaktionsfähiges Wasserstoffatom enthalten, erhält man eine Aminonaphtholcarbonsäure beziehungsweise deren am Stickstoff substi tuierte Derivate, bei denen der Stickstoff vermutlich an das Kohlenstoffatom in 6-Stel- lung gebunden ist.
Diese Körper lassen sich nach den üblichen Methoden in Carbonsäurearylide überführen. Die so erhaltenen 6-Amino-2-Naphtol-3- oarbonsäurearylide und ihre in der Amino- gruppe substituierten Derivate sind sehr wichtige Komponenten zur Herstellung von Azofarbstoffen in Substanz und auf der Faser.
Da die 6-Amino-2-napthol-3-carbonsäureary- lide und ihre Derivate Affinität zur Baum wolle besitzen, so können die .Farbstoffe auf der Faser hergestellt werden, ohne dass die mit der alkalischen Lösung der Azokompo- nenten geklotzte Ware vorher getrocknet werden muss.
Entsprechend ihrer Natur als Aminonaphtholderivate liefern die vorliegen den Carbonsäurearylide zwei Reihen von Farbstoffen je nachdem man die Kupplung unter Arbeitsbedingungen vornimmt, welche den Eingriff der Azogruppe auf der Amino- seite oder der Oxyseite des Naphtalinkom- plexes veranlassen. Das vorliegende Verfahren besitzt deshalb besonderen technischen Wert, weil es hiermit zum ersten Male gelungen ist, grüne Monoazofarbstoffe herzustellen.
Vorliegendes Patent bezieht sich nun auf ein Verfahren zur Darstellung eines wasser unlöslichen Azofarbstoffes, welches dadurch gekennzeichnet ist, dass man die Diazover- bindung von 5-Chlor-2-amino-l-toluol mit 6- p-Tolylamino-2 -naphtol-3-carbonsäure-o-anisi- did kuppelt.
Der so erhaltene Farbstoff liefert in üblicher Weise mit Substraten verarbeitet grüne Farblacke und färbt, auf der Faser erzeugt, Baumwolle in echten grünen Tönen an. <I>Beispiel:</I> 14 Teile 5-Chlo@-2-amino-toluol werden in üblicher Weise mit Nitrit und Salzsäure dianotiert und die Diazolösung in eine mit überschüssiger Soda versetzte alkalische M= sung von 40 Teilen 6-p-Tolylamino-2-naphthol- 3-carbonsäure-o-anisidid eingetragen.
Das gleiche Resultat erhält man bei Kupplung in Gegenwart von Calciumcarbonat.
Process for the preparation of a water-insoluble azo dye. When 2.6 dioxynaphthalene-3-carboxylic acid is reacted with ammonia or amines which contain at least one reactive hydrogen atom on the nitrogen, an aminonaphtholcarboxylic acid or its nitrogen-substituted derivatives are obtained, in which the nitrogen is presumably attached to the carbon atom in the 6-position is bound.
These bodies can be converted into carboxylic acid arylides by the usual methods. The 6-amino-2-naphthol-3-carboxylic acid arylides obtained in this way and their derivatives substituted in the amino group are very important components for the production of azo dyes in substance and on the fiber.
Since the 6-amino-2-napthol-3-carboxylic acid arylides and their derivatives have an affinity for cotton, the dyes can be produced on the fiber without the goods padded with the alkaline solution of the azo components having to be dried beforehand must become.
According to their nature as aminonaphthol derivatives, the carboxylic acid arylides present provide two series of dyes, depending on whether the coupling is carried out under working conditions, which cause the azo group to intervene on the amino side or the oxy side of the naphthalene complex. The present process is of particular technical value because it is the first time that green monoazo dyes have been produced.
The present patent now relates to a process for the preparation of a water-insoluble azo dye, which is characterized in that the diazo compound of 5-chloro-2-amino-1-toluene with 6-p-tolylamino-2-naphthol-3 -carboxylic acid-o-anisi- did coupling.
The dyestuff obtained in this way, when processed in the usual way with substrates, produces green colored lakes and, produced on the fiber, dyes cotton in genuine green shades. <I> Example: </I> 14 parts of 5-Chlo @ -2-aminotoluene are dianotized in the usual way with nitrite and hydrochloric acid and the diazo solution is poured into an alkaline solution of 40 parts of 6-p- with excess soda. Tolylamino-2-naphthol-3-carboxylic acid-o-anisidide entered.
The same result is obtained when coupling in the presence of calcium carbonate.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE142155X | 1928-04-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH142155A true CH142155A (en) | 1930-09-15 |
Family
ID=5669064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH142155D CH142155A (en) | 1928-04-18 | 1929-04-17 | Process for the preparation of a water-insoluble azo dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH142155A (en) |
-
1929
- 1929-04-17 CH CH142155D patent/CH142155A/en unknown
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