CH210603A - 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
- CH210603A CH210603A CH210603DA CH210603A CH 210603 A CH210603 A CH 210603A CH 210603D A CH210603D A CH 210603DA CH 210603 A CH210603 A CH 210603A
- Authority
- CH
- Switzerland
- Prior art keywords
- water
- insoluble azo
- preparation
- azo dye
- insoluble
- Prior art date
Links
- 239000000987 azo dye Substances 0.000 title claims description 7
- 238000000034 method Methods 0.000 title claims description 7
- 238000002360 preparation method Methods 0.000 title description 3
- 239000000975 dye Substances 0.000 claims description 10
- 239000000020 Nitrocellulose Substances 0.000 claims description 4
- 229920001220 nitrocellulos Polymers 0.000 claims description 4
- 239000003921 oil Substances 0.000 claims description 4
- 239000002904 solvent Substances 0.000 claims description 4
- KQCMTOWTPBNWDB-UHFFFAOYSA-N 2,4-dichloroaniline Chemical compound NC1=CC=C(Cl)C=C1Cl KQCMTOWTPBNWDB-UHFFFAOYSA-N 0.000 claims description 3
- 125000002339 acetoacetyl group Chemical group O=C([*])C([H])([H])C(=O)C([H])([H])[H] 0.000 claims description 3
- 150000008049 diazo compounds Chemical class 0.000 claims description 3
- 239000003502 gasoline Substances 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 239000004575 stone Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000004305 biphenyl Substances 0.000 description 2
- 235000010290 biphenyl Nutrition 0.000 description 2
- 238000004040 coloring Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 description 2
- 239000004922 lacquer Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N phenylbenzene Natural products C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 2
- 238000000859 sublimation Methods 0.000 description 2
- 230000008022 sublimation Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- RRJUYQOFOMFVQS-UHFFFAOYSA-N 2,3,4-trichloroaniline Chemical compound NC1=CC=C(Cl)C(Cl)=C1Cl RRJUYQOFOMFVQS-UHFFFAOYSA-N 0.000 description 1
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N N-phenyl amine Natural products NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 1
- 229960000583 acetic acid Drugs 0.000 description 1
- WDJHALXBUFZDSR-UHFFFAOYSA-N acetoacetic acid Chemical compound CC(=O)CC(O)=O WDJHALXBUFZDSR-UHFFFAOYSA-N 0.000 description 1
- 229920000180 alkyd Polymers 0.000 description 1
- 150000001448 anilines Chemical class 0.000 description 1
- -1 azo compound Chemical class 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 238000006193 diazotization reaction Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000012362 glacial acetic acid Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 235000010288 sodium nitrite Nutrition 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 125000000020 sulfo group Chemical group O=S(=O)([*])O[H] 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
- 239000001052 yellow pigment 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
- C09B33/00—Disazo and polyazo dyes of the types A->K<-B, A->B->K<-C, or the like, prepared by diazotising and coupling
- C09B33/02—Disazo dyes
- C09B33/153—Disazo dyes in which the coupling component is a bis-(aceto-acetyl amide) or a bis-(benzoyl-acetylamide)
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
Verfahren zur Herstellung eines wasserunlöslichen Azofarbstoffes. In der Patentschrift 386054 ist ein Ver fahren zur Herstellung von wasserunlöslichen Azofarbstoffen beschrieben, das darin besteht, dass man Diazoverbindungen, welche keine Sulfo- oder Carboxylgruppe enthalten, mit Di- acetessigsäurearyliden der allgemeinen Formel CHs-C0-CH2-CO-NH-X-NH-CO-CH2-CO-CHs, worin X einen gegebenenfalls substituierten Diphenylrest bedeutet, für sich oder auf einer Grundlage kuppelt.
Das Verfahren eignet sich zur Erzeugung wertvoller Lacke und eben solcher Färbungen auf der Faser. Ferner sind in der Patentschrift 520243 wasserunlösliche Azofarbstoffe beschrieben, die durch Kuppeln von diazotiertem 2, 3, 4-Trichloranilin mit Diacetessigsäurearyliden der obengenannten allgemeinen Formel entstehen und ebenfalls zur Erzeugung von Lacken und Färbungen auf der Faser geeignet sind. Diese Farbstoffe zeichnen sich durch eine verbesserte Licht echtheit gegenüber den vorbekannten Kombi nationen aus.
Der Wert der in den vorgenannten Patent schriften beschriebenen Farbstoffe liegt haupt- sächlich in ihrer Eignung zur Erzeugung von Färbungen auf der Faser. Als Pigmentfarb stoffe zeigen sie zum Beispiel im graphischen Druck nur eine mässige bis mittlere Licht echtheit.
Es wurde nun gefunden, dass man zu wertvollen Pigmentazofarbstoffen dieser Farb- stoffgruppe gelangt, wenn man die Diazover- bindungen 2,4-substituierten Anilins der all gemeinen Formel
EMI0001.0022
worin Y und Yi für Halogen stehen, mit Diacetessigsäurearyliden der allgemeinen Formel CH3-CO-CHz-CO-NH-X-NH-CO-CHz-CO-CHs, worin X einen gegebenenfalls substituierten Diphenylrestbedeutet, in Substanz, gegebenen falls auch auf einem Substrat kuppelt.
Die so erhaltenen gelben Pigmentfarbstoffe besitzen eine sehr gute Ölechtheit, Spritecht- heit, Lösungsmittelechtheit und Sublimier- echtheit und sind in dieser Hinsicht den unter dem Namen Hansagelb bekannten Farbstoffen überlegen.
Sie sind deshalb vorzüglich ge eignet für die Verwendung in Ölanstrichen, graphischen Drucken und für die Anfärbun- gen von Nitrocellulose- und Alkydallacken, bei denen gute Überspritzechtheit und Subli- mierechtheit verlangt wird. Vor den aus den Patentschriften 386054 und 520243 und den französischen Patentschriften 818277 und 821551 und 729414 bekannten vergleichbaren Farbstoffen zeichnen sie sich durch eine ver besserte Lichtechtheit aus.
Gegenstand des vorliegenden Patentes ist ein Verfahren zur Herstellung eines wasser unlöslichen Azofarbstoffes. Das Verfahren ist dadurch gekennzeichnet, dass man 2 Mol Di- azoverbindung des 2,4-Dichloranilins mit 1 Mol Di-(acetoacetyl)-o-tolidid kuppelt. Der neue Farbstoff stellt getrocknet ein gelbes Pulver dar, das in Öl, Sprit und Lösungsmitteln für Nitrocellulose unlöslich ist. Er liefert einen klaren, grünstichig gelben Steindruck von guter Lichtechtheit.
<I>Beispiel:</I> 162 g 2,4-Dichloranilin werden in 1100 cm3 Wasser und 455 cm3 roher Salzsäure gelöst. Man kühlt auf 0 C ab und lässt in die Suspen sion des salzsauren Salzes der Base eine Lösung von 69 g Natriumnitrit einfliessen. Nach beendeter Diazotierung wird die Diazo- lösung filtriert.
195 g Di-(acetoacetyl)-o-tolidid werden in 1800 cm' Wasser von<B>500</B> C, das 165 cm-' konzentrierte Natronlauge enthält, unter Zu hilfenahme eines Netzmittels gelöst. Man fil triert die Lösung, fügt weitere 180 cm3 Natronlauge hinzu, kühlt auf 5 C ab und fällt das Arylid unter Rühren mit 235 cnr$ Eisessig wieder aus.
Die Diazolösung wird zur Arylidsuspen- sion hinzugefügt und die Mischung allmählich auf 35-40 C erwärmt. Nach beendeter Kupplung wird der Farbstoff abgesaugt und gewaschen. Er stellt getrocknet ein gelbes Pulver dar, das in Ö1, Sprit und den Lösungs mitteln für Nitrocellulose unlöslich ist. Er liefert einen klaren, grünstichig gelben Stein druck von guter Lichtechtheit.
Process for the preparation of a water-insoluble azo dye. In the patent specification 386054 a process for the production of water-insoluble azo dyes is described, which consists in that diazo compounds which contain no sulfo or carboxyl group, with diacetic acid arylides of the general formula CHs-C0-CH2-CO-NH-X- NH-CO-CH2-CO-CHs, where X is an optionally substituted diphenyl radical, couples alone or on a basis.
The process is suitable for producing valuable lacquers and just such colorings on the fiber. Furthermore, the patent 520243 describes water-insoluble azo dyes which are formed by coupling diazotized 2, 3, 4-trichloroaniline with diacetoacetic acid arylides of the above general formula and are also suitable for producing varnishes and dyeings on the fiber. These dyes are distinguished by improved light fastness compared to the previously known combinations.
The value of the dyes described in the aforementioned patent documents is mainly due to their suitability for producing colorations on the fiber. As pigment dyes, for example, they show only moderate to medium lightfastness in graphic printing.
It has now been found that valuable pigment azo dyes of this group of dyes are obtained if the diazo compounds 2,4-substituted aniline of the general formula are used
EMI0001.0022
where Y and Yi are halogen, with diacetoacetic acid arylides of the general formula CH3-CO-CHz-CO-NH-X-NH-CO-CHz-CO-CHs, where X is an optionally substituted diphenyl radical, in substance, optionally also on one Substrate couples.
The yellow pigment dyes obtained in this way have very good oilfastness, gasoline fastness, solvent fastness and sublimation fastness and in this respect are superior to the dyes known under the name Hansa Yellow.
They are therefore eminently suitable for use in oil paints, graphic prints and for coloring nitrocellulose and alkyd lacquers, where good fastness to overspray and sublimation is required. Before the comparable dyes known from patents 386054 and 520243 and French patents 818277 and 821551 and 729414, they are distinguished by improved lightfastness.
The present patent relates to a process for the preparation of a water-insoluble azo dye. The process is characterized in that 2 moles of azo compound of 2,4-dichloroaniline are coupled with 1 mole of di- (acetoacetyl) -o-tolidide. When dried, the new dye is a yellow powder that is insoluble in oil, gasoline and solvents for nitrocellulose. It provides a clear, greenish yellow stone impression of good lightfastness.
<I> Example: </I> 162 g of 2,4-dichloroaniline are dissolved in 1100 cm3 of water and 455 cm3 of raw hydrochloric acid. It is cooled to 0 C and allowed to flow into the suspension of the hydrochloric acid salt of the base, a solution of 69 g of sodium nitrite. When the diazotization has ended, the diazo solution is filtered.
195 g of di- (acetoacetyl) -o-tolidide are dissolved in 1800 cm 'of water of <B> 500 </B> C, which contains 165 cm-' of concentrated sodium hydroxide solution, with the aid of a wetting agent. The solution is filtered, a further 180 cm3 of sodium hydroxide solution is added, the mixture is cooled to 5 ° C. and the arylide is precipitated again with stirring using 235 cc glacial acetic acid.
The diazo solution is added to the arylide suspension and the mixture is gradually warmed to 35-40 ° C. After the coupling has ended, the dye is filtered off with suction and washed. When dried, it is a yellow powder that is insoluble in oil, fuel and solvents for nitrocellulose. It provides a clear, greenish yellow stone print with good lightfastness.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE210603X | 1938-01-21 | ||
| CH210603T | 1939-01-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH210603A true CH210603A (en) | 1940-07-31 |
Family
ID=25724911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH210603D CH210603A (en) | 1938-01-21 | 1939-01-05 | Process for the preparation of a water-insoluble azo dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH210603A (en) |
-
1939
- 1939-01-05 CH CH210603D patent/CH210603A/en unknown
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