CH487982A - Process for the production of disazo and polyazo dyes - Google Patents
Process for the production of disazo and polyazo dyesInfo
- Publication number
- CH487982A CH487982A CH258865A CH258865A CH487982A CH 487982 A CH487982 A CH 487982A CH 258865 A CH258865 A CH 258865A CH 258865 A CH258865 A CH 258865A CH 487982 A CH487982 A CH 487982A
- Authority
- CH
- Switzerland
- Prior art keywords
- dyes
- acid
- amino
- mol
- linked
- Prior art date
Links
- 239000000975 dye Substances 0.000 title claims description 25
- -1 polyazo Polymers 0.000 title claims description 13
- 238000000034 method Methods 0.000 title claims description 9
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 title description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 8
- 239000002253 acid Substances 0.000 claims description 8
- 150000001875 compounds Chemical class 0.000 claims description 6
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 3
- 125000000467 secondary amino group Chemical group [H]N([*:1])[*:2] 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- MGNCLNQXLYJVJD-UHFFFAOYSA-N cyanuric chloride Chemical compound ClC1=NC(Cl)=NC(Cl)=N1 MGNCLNQXLYJVJD-UHFFFAOYSA-N 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 230000003381 solubilizing effect Effects 0.000 claims description 2
- 125000001424 substituent group Chemical group 0.000 claims description 2
- 238000004043 dyeing Methods 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- SXCSXKQTOUHQIY-UHFFFAOYSA-N 4-hydroxynaphthalene-1,7-disulfonic acid Chemical compound OS(=O)(=O)C1=CC=C2C(O)=CC=C(S(O)(=O)=O)C2=C1 SXCSXKQTOUHQIY-UHFFFAOYSA-N 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000004627 regenerated cellulose Substances 0.000 description 3
- NZDXSXLYLMHYJA-UHFFFAOYSA-M 4-[(1,3-dimethylimidazol-1-ium-2-yl)diazenyl]-n,n-dimethylaniline;chloride Chemical compound [Cl-].C1=CC(N(C)C)=CC=C1N=NC1=[N+](C)C=CN1C NZDXSXLYLMHYJA-UHFFFAOYSA-M 0.000 description 2
- RUCHWTKMOWXHLU-UHFFFAOYSA-N 5-nitroanthranilic acid Chemical compound NC1=CC=C([N+]([O-])=O)C=C1C(O)=O RUCHWTKMOWXHLU-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- BAVYZALUXZFZLV-UHFFFAOYSA-N Methylamine Chemical compound NC BAVYZALUXZFZLV-UHFFFAOYSA-N 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 125000003277 amino group Chemical group 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 2
- 150000007530 organic bases Chemical group 0.000 description 2
- WGYKZJWCGVVSQN-UHFFFAOYSA-N propylamine Chemical compound CCCN WGYKZJWCGVVSQN-UHFFFAOYSA-N 0.000 description 2
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 2
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical compound CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 description 2
- ZLYYJUJDFKGVKB-OWOJBTEDSA-N (e)-but-2-enedioyl dichloride Chemical compound ClC(=O)\C=C\C(Cl)=O ZLYYJUJDFKGVKB-OWOJBTEDSA-N 0.000 description 1
- RFPNBTOAWCBYMT-UPHRSURJSA-N (z)-2-chlorobut-2-enedioyl dichloride Chemical compound ClC(=O)\C=C(/Cl)C(Cl)=O RFPNBTOAWCBYMT-UPHRSURJSA-N 0.000 description 1
- DOPJTDJKZNWLRB-UHFFFAOYSA-N 2-Amino-5-nitrophenol Chemical compound NC1=CC=C([N+]([O-])=O)C=C1O DOPJTDJKZNWLRB-UHFFFAOYSA-N 0.000 description 1
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 1
- ZARYBZGMUVAJMK-UHFFFAOYSA-N 2-amino-4-chloro-5-nitrophenol Chemical compound NC1=CC(Cl)=C([N+]([O-])=O)C=C1O ZARYBZGMUVAJMK-UHFFFAOYSA-N 0.000 description 1
- SZIFAVKTNFCBPC-UHFFFAOYSA-N 2-chloroethanol Chemical compound OCCCl SZIFAVKTNFCBPC-UHFFFAOYSA-N 0.000 description 1
- RHPXYZMDLOJTFF-UHFFFAOYSA-N 3-amino-4-hydroxy-5-nitrobenzenesulfonic acid Chemical compound NC1=CC(S(O)(=O)=O)=CC([N+]([O-])=O)=C1O RHPXYZMDLOJTFF-UHFFFAOYSA-N 0.000 description 1
- TWLMSPNQBKSXOP-UHFFFAOYSA-N 6358-09-4 Chemical compound NC1=CC([N+]([O-])=O)=CC(Cl)=C1O TWLMSPNQBKSXOP-UHFFFAOYSA-N 0.000 description 1
- DQIVFTJHYKDOMZ-UHFFFAOYSA-N 96-67-3 Chemical compound NC1=CC([N+]([O-])=O)=CC(S(O)(=O)=O)=C1O DQIVFTJHYKDOMZ-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 1
- ROSDSFDQCJNGOL-UHFFFAOYSA-N Dimethylamine Chemical compound CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229920002292 Nylon 6 Polymers 0.000 description 1
- YGYAWVDWMABLBF-UHFFFAOYSA-N Phosgene Chemical compound ClC(Cl)=O YGYAWVDWMABLBF-UHFFFAOYSA-N 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 1
- PJANXHGTPQOBST-VAWYXSNFSA-N Stilbene Natural products C=1C=CC=CC=1/C=C/C1=CC=CC=C1 PJANXHGTPQOBST-VAWYXSNFSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 125000002252 acyl group Chemical group 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 229910052977 alkali metal sulfide Inorganic materials 0.000 description 1
- 230000029936 alkylation Effects 0.000 description 1
- 238000005804 alkylation reaction Methods 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- FDQSRULYDNDXQB-UHFFFAOYSA-N benzene-1,3-dicarbonyl chloride Chemical compound ClC(=O)C1=CC=CC(C(Cl)=O)=C1 FDQSRULYDNDXQB-UHFFFAOYSA-N 0.000 description 1
- 125000006267 biphenyl group Chemical group 0.000 description 1
- 150000003842 bromide salts Chemical class 0.000 description 1
- 229920002301 cellulose acetate Polymers 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 150000004699 copper complex Chemical class 0.000 description 1
- 229910001431 copper ion Inorganic materials 0.000 description 1
- 229910000365 copper sulfate Inorganic materials 0.000 description 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 150000008049 diazo compounds Chemical class 0.000 description 1
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 1
- VAYGXNSJCAHWJZ-UHFFFAOYSA-N dimethyl sulfate Chemical compound COS(=O)(=O)OC VAYGXNSJCAHWJZ-UHFFFAOYSA-N 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 238000010409 ironing Methods 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- VUQUOGPMUUJORT-UHFFFAOYSA-N methyl 4-methylbenzenesulfonate Chemical compound COS(=O)(=O)C1=CC=C(C)C=C1 VUQUOGPMUUJORT-UHFFFAOYSA-N 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 150000002815 nickel Chemical class 0.000 description 1
- 150000002828 nitro derivatives Chemical class 0.000 description 1
- LQNUZADURLCDLV-UHFFFAOYSA-N nitrobenzene Substances [O-][N+](=O)C1=CC=CC=C1 LQNUZADURLCDLV-UHFFFAOYSA-N 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 229920001281 polyalkylene Polymers 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 238000005185 salting out Methods 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- PJANXHGTPQOBST-UHFFFAOYSA-N stilbene Chemical compound C=1C=CC=CC=1C=CC1=CC=CC=C1 PJANXHGTPQOBST-UHFFFAOYSA-N 0.000 description 1
- 235000021286 stilbenes Nutrition 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 125000000547 substituted alkyl group Chemical group 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 210000002268 wool Anatomy 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
- C09B45/00—Complex metal compounds of azo dyes
- C09B45/02—Preparation from dyes containing in o-position a hydroxy group and in o'-position hydroxy, alkoxy, carboxyl, amino or keto groups
- C09B45/24—Disazo or polyazo compounds
-
- 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
- C09B43/00—Preparation of azo dyes from other azo compounds
- C09B43/12—Preparation of azo dyes from other azo compounds by acylation of amino groups
- C09B43/136—Preparation of azo dyes from other azo compounds by acylation of amino groups with polyfunctional acylating agents
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
Verfahren zur Herstellung von Dis- und Polyazofarbstoffen Gegenstand der Erfindung ist ein Verfahren zur Herstellung von Dis- und Polyazofarbstoffen, welches darin besteht, dass man 2 Mol einer Verbindung der Formel
EMI0001.0008
worin A einen ein- oder zweikernigen aromatischen Rest und R eine primäre oder sekundäre Aminogruppe bedeuten,
mit 1 Mol eines Dihalogenids einer zweibasi schen Säure oder mit Cyanurchlorid oder dessen Monokondensationsprodukten verknüpft und die zum Aufbau der Farbstoffe zu verwendenden einzelnen Komponenten so wählt, dass diese zumindest die für die Wasserlöslichkeit der Farbstoffe notwendige An zahl löslichmachender Gruppen enthalten;
die Kompo nenten können in ortho-Stellung zu den mit 1-Hydro- xynaphthalin-4,6-disulfonsäure verknüpften Azobrük- ken einen zur Metallkomplexbildung befähigten Substi- tuenten enthalten. Die erhaltenen Farbstoffe können in Substanz mit kupfer- oder nickelabgebenden Mitteln behandelt werden.
Verbindungen der Formel (1), in denen R eine pri märe Aminogruppe bedeutet, lassen sich durch Reduk tion der entsprechenden Nitroverbindungen, z. B. mit tels Alkalimetallsulfiden, in alkalischem Milieu herstel len oder durch Verseifung eines Acylderivats der Ami- noazofarbstoffe der Formel (1). Verbindungen der For mel (1), in denen R eine Nitrogruppe bedeutet, können beispielsweise so aufgebaut werden, dass man z. B.
eine 1-Amino-4-nitrobenzol-2-carbonsäure diazotiert und hierauf in alkalischem Medium mit der 1-Hydro- xynaphthalin-4,6-disulfonsäure kuppelt. Anstelle der 1-Amino-4-nitrobenzol-2-carbonsäure können auch Verbindungen wie 1-Amino-4-(oder-5-)-nitro-2-hydroxybenzol, 1-Amino-2-methoxy-4-(oder -5-)- nitrobenzol, 1-Amino-2-carboxy-methoxy-4-(oder -5-)-n i trobenzo 1, 1-Hydroxy-2-amino-4-chlor-5-nitrobenzol,
1-Hydroxy-6-amino-2-chlor-4-nitrobenzol, 1-Hydroxy-2-amino-4-nitrobenzol-6-sulfonsäure, 1-Hydroxy-2-amino-6-nitrobenzol-4-sulfonsäure, 1-(4'-Nitrobenzoyl-)-amino-4-aminobenzol- 3-carbonsäure verwendet werden.
Diese Aminoazofarbstoffe können durch Alkylie- rung, z. B. mit Dimethylsulfat oder 4-Methylbenzol- 1-sulfonsäuremethylester oder mit Äthylenoxyd bzw. Äthylenchlorhydrin usw. in sekundäre Aminoderivate übergeführt werden.
Sehr wertvolle Farbstoffe erhält man, wenn man 2 Mol dieser A.minoazofarbstoffe mit 1 Mol eines Diha- logenids einer zweibasischen Säure zu einem symmetri schen Disazofarbstoff verknüpft und diesen, wenn er metallisierbare Gruppen enthält, anschliessend in Sub stanz mit kupier- oder nickelabgebenden Mitteln be handelt.
Als solche Dihalogenide kommen vor allem Phosgen, Fumarsäuredichlorid, Oxyalylchlorid, The- rephthalsäuredichlorid, Isophthalsäuredichlorid sowie die entsprechenden Säurebromide in Frage. Die Umset zung mit den Säuredihalogeniden kann in schwach sau rem bis schwach alkalischem Milieu, gegebenenfalls in Gegenwart von organischen Lösungsmitteln wie Ace ton, Alkohol usw. oder in Gegenwart von tertiären organischen Basen wie Pyridin, ausgeführt werden.
Die Behandlung mit kupier- oder nickelabgebenden Verbindungen kann in Substanz in sehr verschiedener Art ausgeführt werden, z. B. durch Erhitzen der Farb- stofflösungen mit wasserlöslichen Kupfer- oder Nickel salzen in schwach saurem bis schwach alkalischem Medium, vorzugsweise in Gegenwart von Ammoniak oder organischen Basen, wie Pyridin, Mono- oder Diäthanolamin, Methylamin, Di- und Trimethylamin, Propylamin usw.,
oder in der konzentrierten wässrigen Lösung von Alkalimetallsalzen aliphatischer Monocar- bonsäuren, wie z. B. Natriumacetat. Die nach dem Verfahren erhältlichen neuen Farbstoffe dienen zum Färben, Klotzen oder Bedrucken von Baumwolle und Fasern aus regenerierter Cellulose in sehr echten, je nach dem Aufbau variierenden Farbtönen. Insbeson dere erhält man sehr lichtechte blaue und rote Färbun gen.
Durch gleichzeitige oder nachträgliche Behandlung der Färbungen mit Polyalkylenpolyaminen können die Nassechtheiten noch verbessert werden.
Die Färbungen auf natürlicher und regenerierter Cellulose besitzen sehr gute Lichtechtheit und Nass- echtheiten, wie Wasch-, Wasser-, Schweiss-, Seewas ser-, Nassbügelechtheit, Wassertropfenechtheit usw. Zudem besitzen sie gute Avivierechtheit, Formalde hyd-, Alkali- und Säureechtheit. Die neuen Farbstoffe reservieren sehr gut Celluloseacetat, Wolle, Seite, Nylon, Perlon, Acryl- und Polyesterfasern. Die Gasfu- meechtheit ist ausgezeichnet.
In den nachfolgenden Beispielen bedeuten die Teile Gewichtsteile und die Prozente Gewichtsprozente. Die Temperaturen sind in Celsiusgraden angegeben.
<I>Beispiel 1</I> 43,9 Teile des Aminomonoazofarbstoffs, den man durch Kuppeln der Diazoverbindung des 1-Amino- 2-hydroxy-4-nitrobenzols mit 1-Hydroxy-naphthalin- 4,6-disulfonsäure und anschliessende Reduktion der Nitrogruppe zur Aminogruppe erhält, werden in 1000 Teilen Wasser neutral gelöst.
Bei Raumtemperatur lässt man unter sehr gutem Rühren die Lösung von 9,4 Teilen Monochlorfumarsäure-dichlorid in 30 Teilen Chlorbenzol zutropfen und hält den pH-Wert der Reak tionsmischung durch allmähliche Zugabe von Natrium- hydrogencarbonat bei 5-7. Sobald keine freie Amino- gruppe mehr nachweisbar ist, ist die Kondensation be endet.
Man stellt die Farbstofflösung mit Essigsäure auf einen pH-Wert von 4,5 und lässt bei 30-60 eine Lösung von 49,5 Teilen kristallisiertem Kupfersulfat in 200 Teilen Wasser zutropfen bis sich ein geringer Cberschuss an Kupferionen nachweisen lässt. Der ge bildete Kupferkomplex des neuen Farbstoffs wird durch Aussalzen mit Natriumchlorid in üblicher Weise isoliert und durch Umlösen aus Wasser gereinigt, abfil- triert und bei 60-70 im Vakuum getrocknet.
Man erhält ein dunkles Pulver, das sich in Wasser mit rubinroter Farbe löst und Baumwolle und Fasern aus regenerierter Cellulose in sehr licht- und nassech- ten egalen Tönen rubinrot färbt.
In der nachfolgenden Tabelle sind weiter Disazo- farbstoffe aufgeführt, welche auf ähnliche Weise nach den Angaben des Beispiels 1 hergestellt werden kön nen. Sie entsprechen in der metallfreien Form der For mel
EMI0002.0056
worin A1 einen gegebenenfalls substituierten Rest der Benzol-, Stilben- oder Diphenylreihe, X CO oder den Rest einer zweiwertigen organischen Säure oder einer Triazinverbindung und R, Wasserstoff oder gegebenen falls substituiertes Alkyl bedeuten.
EMI0002.0065
EMI0003.0001
EMI0004.0001
Zum Färben verfährt man wie folgt: Man löst 0,1 Teil des kupferhaltigen Disazofarb- stoffs des Beispiels 1 in 300 Teilen kalkfreiem Wasser. In dieser Flotte färbt man 10 Teile angenetztes Baum wolltuch, indem man das Bad, beginnend bei einer Temperatur von 30 , innerhalb von 30 Minuten auf 100 erhitzt und während 15 Minuten bei dieser Tem peratur hält. Im Verlauf des Färbeprozesses gibt man dem Bad portionenweise 3-4 Teile Natriumsulfat in Form einer 10 o/oigen wässrigen Lösung zu.
Hierauf lässt man das Färbegut in der Flotte innerhalb von 15-20 Minuten auf 50 abkühlen, nimmt es heraus, spült es mit Wasser, schwingt es aus und trocknet es. Durch Nachbehandlung des Färbeguts mit einer basi schen, kationaktiven Kupferkomplexverbindung wer den die Echtheitseigenschaften der Färbung deutlich verbessert.
Process for the preparation of disazo and polyazo dyes The invention relates to a process for the preparation of disazo and polyazo dyes, which consists in adding 2 mol of a compound of the formula
EMI0001.0008
where A is a mono- or binuclear aromatic radical and R is a primary or secondary amino group,
linked with 1 mol of a dihalide of a dibasic acid or with cyanuric chloride or its monocondensation products and the individual components to be used to build up the dyes are selected so that they contain at least the number of solubilizing groups necessary for the water solubility of the dyes;
the components can contain a substituent capable of forming metal complexes in the ortho position to the azo bridges linked with 1-hydroxynaphthalene-4,6-disulfonic acid. The dyes obtained can be treated as they are with copper- or nickel-releasing agents.
Compounds of formula (1) in which R is a primary amino group can be reduced by reducing the corresponding nitro compounds, eg. B. with means of alkali metal sulfides, in an alkaline medium herstel len or by saponification of an acyl derivative of the aminoazo dyes of the formula (1). Compounds of the formula (1) in which R is a nitro group can, for example, be constructed so that one z. B.
a 1-amino-4-nitrobenzene-2-carboxylic acid is diazotized and then coupled in an alkaline medium with the 1-hydroxynaphthalene-4,6-disulfonic acid. Instead of 1-amino-4-nitrobenzene-2-carboxylic acid, compounds such as 1-amino-4- (or-5 -) - nitro-2-hydroxybenzene, 1-amino-2-methoxy-4- (or -5 -) - nitrobenzene, 1-amino-2-carboxy-methoxy-4- (or -5 -) - ni trobenzo 1, 1-hydroxy-2-amino-4-chloro-5-nitrobenzene,
1-Hydroxy-6-amino-2-chloro-4-nitrobenzene, 1-hydroxy-2-amino-4-nitrobenzene-6-sulfonic acid, 1-hydroxy-2-amino-6-nitrobenzene-4-sulfonic acid, 1- (4'-Nitrobenzoyl -) - amino-4-aminobenzene-3-carboxylic acid can be used.
These aminoazo dyes can be obtained by alkylation, e.g. B. with dimethyl sulfate or 4-methylbenzene-1-sulfonic acid methyl ester or with ethylene oxide or ethylene chlorohydrin, etc. are converted into secondary amino derivatives.
Very valuable dyes are obtained if 2 moles of these aminoazo dyes are linked with 1 mole of a dihalide of a dibasic acid to form a symmetrical disazo dye and this, if it contains metallizable groups, is then added in substance with copper or nickel-releasing agents acts.
Particularly suitable dihalides of this type are phosgene, fumaric acid dichloride, oxyalyl chloride, therephthalic acid dichloride, isophthalic acid dichloride and the corresponding acid bromides. The reaction with the acid dihalides can be carried out in a weakly acidic to weakly alkaline medium, optionally in the presence of organic solvents such as acetone, alcohol, etc. or in the presence of tertiary organic bases such as pyridine.
The treatment with copper or nickel-releasing compounds can be carried out in substance in very different ways, eg. B. by heating the dye solutions with water-soluble copper or nickel salts in a weakly acidic to weakly alkaline medium, preferably in the presence of ammonia or organic bases such as pyridine, mono- or diethanolamine, methylamine, di- and trimethylamine, propylamine, etc. ,
or in the concentrated aqueous solution of alkali metal salts of aliphatic monocarboxylic acids, such as. B. sodium acetate. The new dyes obtainable by the process are used for dyeing, padding or printing cotton and fibers made from regenerated cellulose in very real color shades that vary depending on the structure. In particular, very lightfast blue and red colors are obtained.
The wet fastness properties can be further improved by simultaneous or subsequent treatment of the dyeings with polyalkylene polyamines.
The dyeings on natural and regenerated cellulose have very good fastness to light and wet fastness, such as fastness to washing, water, perspiration, seawater, wet ironing, fastness to water droplets, etc. They also have good fastness to release, formaldehyde, alkali and acid fastness. The new dyes reserve very well cellulose acetate, wool, side, nylon, perlon, acrylic and polyester fibers. The gas resistance is excellent.
In the following examples, parts are parts by weight and percentages are percentages by weight. The temperatures are given in degrees Celsius.
<I> Example 1 </I> 43.9 parts of the amino monoazo dye obtained by coupling the diazo compound of 1-amino-2-hydroxy-4-nitrobenzene with 1-hydroxy-naphthalene-4,6-disulphonic acid and then reducing the Nitro group to the amino group obtained are dissolved in 1000 parts of water until neutral.
The solution of 9.4 parts of monochlorofumaric acid dichloride in 30 parts of chlorobenzene is added dropwise at room temperature with very good stirring, and the pH of the reaction mixture is kept at 5-7 by the gradual addition of sodium hydrogen carbonate. As soon as no more free amino groups can be detected, the condensation is over.
The dye solution is adjusted to a pH of 4.5 with acetic acid and a solution of 49.5 parts of crystallized copper sulfate in 200 parts of water is added dropwise at 30-60 until a small excess of copper ions can be detected. The copper complex of the new dye formed is isolated in the usual way by salting out with sodium chloride and purified by dissolving from water, filtered off and dried at 60-70 in vacuo.
A dark powder is obtained which dissolves in water with a ruby red color and dyes cotton and fibers made of regenerated cellulose in very lightfast and wetfast level shades of ruby red.
The table below also lists disazo dyes which can be prepared in a similar manner according to the information in Example 1. In the metal-free form, they correspond to the formula
EMI0002.0056
wherein A1 is an optionally substituted radical from the benzene, stilbene or diphenyl series, X is CO or the radical of a dibasic organic acid or a triazine compound and R is hydrogen or optionally substituted alkyl.
EMI0002.0065
EMI0003.0001
EMI0004.0001
The procedure for dyeing is as follows: 0.1 part of the copper-containing disazo dye from Example 1 is dissolved in 300 parts of lime-free water. In this liquor, 10 parts of wetted cotton cloth are dyed by heating the bath, starting at a temperature of 30, to 100 within 30 minutes and holding it at this temperature for 15 minutes. During the dyeing process, 3-4 parts of sodium sulfate in the form of a 10% aqueous solution are added to the bath in portions.
The dyed material is then allowed to cool to 50 in the liquor within 15-20 minutes, it is removed, rinsed with water, swung out and dried. Post-treatment of the dyed material with a basic, cation-active copper complex compound significantly improves the fastness properties of the dye.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH258865A CH487982A (en) | 1960-04-08 | 1960-04-08 | Process for the production of disazo and polyazo dyes |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH398660A CH400417A (en) | 1960-04-08 | 1960-04-08 | Process for the preparation of disazo dyes |
| CH258865A CH487982A (en) | 1960-04-08 | 1960-04-08 | Process for the production of disazo and polyazo dyes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH487982A true CH487982A (en) | 1970-03-31 |
Family
ID=25690848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH258865A CH487982A (en) | 1960-04-08 | 1960-04-08 | Process for the production of disazo and polyazo dyes |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH487982A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2847912A1 (en) * | 1978-11-04 | 1980-05-22 | Bayer Ag | AZO DYES |
-
1960
- 1960-04-08 CH CH258865A patent/CH487982A/en not_active IP Right Cessation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2847912A1 (en) * | 1978-11-04 | 1980-05-22 | Bayer Ag | AZO DYES |
| FR2440971A1 (en) * | 1978-11-04 | 1980-06-06 | Bayer Ag | AZO DYES AND THEIR TINCTORIAL APPLICATIONS |
| US4337195A (en) | 1978-11-04 | 1982-06-29 | Bayer Aktiengesellschaft | Azo dyestuffs |
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