DE533617C - Process for the preparation of azo dyes - Google Patents

Process for the preparation of azo dyes

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Publication number
DE533617C
DE533617C DEI34688D DEI0034688D DE533617C DE 533617 C DE533617 C DE 533617C DE I34688 D DEI34688 D DE I34688D DE I0034688 D DEI0034688 D DE I0034688D DE 533617 C DE533617 C DE 533617C
Authority
DE
Germany
Prior art keywords
red
preparation
acid
dyes
azo dyes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DEI34688D
Other languages
German (de)
Inventor
Dr Georg Kalischer
Dr Carltheo Schultis
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to DEI34688D priority Critical patent/DE533617C/en
Application granted granted Critical
Publication of DE533617C publication Critical patent/DE533617C/en
Expired legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B29/00Monoazo dyes prepared by diazotising and coupling

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)

Description

Verfahren zur Darstellung von Azofarbstoffen Es wurde gefunden, daß man zu neuen wertvollen Monoazofarbstoffen für Wolle gelangt, wenn man die Diazoverbindungen des 4-Aminohexahydrodiphenyls oder seiner Substitutionsprodukte mit Azofarbstoffkomponenten, .die mindestens eine- Sulfonsäuregruppe enthalten, vereinigt. Als geeignete Komponenten seien Pyrazolonsulfonsäuren, i-oder2-Oxynaphthalinsulfonsäuren, Aminooxynaphthalinsulfonsäuren oder deren Acylverbindungen genannt.Process for the preparation of azo dyes It has been found that one arrives at new valuable monoazo dyes for wool if one uses the diazo compounds of 4-aminohexahydrodiphenyl or its substitution products with azo dye components, .The contain at least one sulfonic acid group, combined. As suitable components be pyrazolone sulfonic acids, i- or 2-oxynaphthalene sulfonic acids, aminooxynaphthalene sulfonic acids or called their acyl compounds.

Die- so erhaltenen Farbstoffe färbenWolleaus saurem Bade in gelben, orangen, roten bis violetten Tönen an. Sie zeichnen sich durch reine und leuchtende Nuancen sowie durch eine auffallend gute Wasch- und Walkechtheit aus.. Beispiel Eine Lösung von - 17,4 kg 4-Aminohexahydrodiphenylchlorhydrat (vgl. Patent 509 045, Beispiel 1) in etwa loo 1 heißem Wasser wird in, eine Mischung von 2o 1 Salzsäure, spez. Gew. z,155, und Eis gegeben. Die so entstandene Suspension wird mit einer Lösung von 6,9 kg Natriumnitrit in etwa So 1 Wasser bei etwa 5 bis lo° diazotiert, wobei die Diazoverbindung in Lösung geht. Diese Diazoverbindung kuppelt man bei etwa io° mit 27,6 kg i-Sulfophenyl-3-methyl-5-pyrazolon, gelöst in einer 34 kg Soda enthaltenden Sodalösung. Der erhaltene Farbstoff färbt Wolle in klaren gelben Tönen an.The dyes obtained in this way dye wool from an acid bath in yellow, orange, red to purple shades. They are characterized by pure and bright shades and by a remarkably good washing and Walk fastness .. Example A solution of - (. See Patent 509 045, Example 1) 17.4 kg 4-Aminohexahydrodiphenylchlorhydrat approximately loo 1 hot water is in , a mixture of 2o 1 hydrochloric acid, spec. Wt. Z, 155, and given ice. The resulting suspension is diazotized with a solution of 6.9 kg of sodium nitrite in about 5 to 10 ° of water at about 5 to 10 °, the diazo compound going into solution. This diazo compound is coupled at about 10 ° with 27.6 kg of i-sulfophenyl-3-methyl-5-pyrazolone dissolved in a soda solution containing 34 kg of soda. The dye obtained stains wool in clear yellow tones.

Verwendet man zur Kupplung eine sodaalkalische Lösung von 24 kg 2, 7-Oxynaphthalinsulfonsäure, so erhält man einen Farbstoff, der Wolle lebhaft orange färbt.If a soda-alkaline solution of 24 kg 2 is used for coupling, 7-oxynaphthalenesulfonic acid, a dye is obtained, the wool vividly orange colors.

Ersetzt man außerdem das 4-Aminohexahydrodiphenyl durch die entsprechende Menge 4-Amino-3-methylhexahydrodiphenyl, so erhält man einen Farbstoff, der Wolle gelbstichig rot anfärbt: In der folgenden Tabelle sind die Nuancen einiger weiterer nach vorliegendem Verfahren erhältlicher Farbstoffe zusammengestellt: Nuancen der Farbstoffe aus den diazotierten Basen 4-Aminohexa- 4-Amino- 4-Amino- gekuppelt mit hydrodiphenyl hyd ochphenyl hydrod phenyl gelb rotstichig gelb i-Sulfophenyl-3-methyl-5-pyrazolon rot i, 3-Naphtholsulfonsäure gelbstichig rot 2, 7-Naphtholsulfonsäure Nuancen der Farbstoffe aus den diazotierten Basen 4-Axpinä- 4-Amino- gekuppelt mit 4-Aminohexa- hydmnpheny- 3-methylliexa- 3-methox-yhexa- hydrodiphenyl hydrodiphenyl gelbstichig rot rot rot i, 4-Naphtholsulfonsäure gelbstichig rot rot blaustichig rot 2, 3, 6-Naphtholdisulfonsäure orange rät blaustichig rot r, 3, 6-Naphtholdisulfonsäure rot rot Bordeaux 2, 8, 6-Dioxynaphthalinsulfonsäure rotbraun rotbraun braunstichig rot z, 8, 6-Aminooxynaphthalinsulfonsäure (sauer) violett .rotviolett rotviolett i, 8, 3, 6-Aminooxynaphthalindisulfonsäure rotviolett Sulfotolyl-i, 8, 3, 6-aminooxynaphthalin- disulfonsäure If you also replace the 4-aminohexahydrodiphenyl with the corresponding amount of 4-amino-3-methylhexahydrodiphenyl, you get a dye that dyes wool a yellowish red: The following table summarizes the nuances of some other dyes available according to the present process: Nuances of the dyes from the diazotized bases 4-aminohexa- 4-amino-4-amino- coupled with hydrodiphenyl hyd ochphenyl hydrod phenyl yellow reddish yellow i-sulfophenyl-3-methyl-5-pyrazolone red i, 3-naphtholsulfonic acid yellowish red 2,7-naphtholsulfonic acid Nuances of the dyes from the diazotized bases 4-Axpinä- 4-Amino- coupled with 4-aminohexa- hydmnpheny- 3-methylliexa- 3-methox-yhexa- hydrodiphenyl hydrodiphenyl yellowish red red red i, 4-naphtholsulfonic acid yellowish red red bluish red 2, 3, 6-naphthol disulfonic acid orange advises bluish red r, 3, 6-naphthol disulfonic acid red red Bordeaux 2, 8, 6-dioxynaphthalenesulfonic acid red-brown red-brown brownish red z, 8, 6-aminooxynaphthalenesulfonic acid (angry) violet, red-violet, red-violet i, 8, 3, 6-aminooxynaphthalene disulfonic acid red-violet Sulfotolyl-i, 8, 3, 6-aminooxynaphthalene- disulfonic acid

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung von Monoazofarbstoffen für Wolle, dadurch gekennzeichnet, daß man die Diazoverbindungen des 4-Aminohexahydrodiphenyls oder seiner Substitutionsprodukte mit üblichen Azofarbstoffkomponenten, die mindestens eine Sulfonsäuregruppe enthalten, vereinigt.PATENT CLAIM: Process for the preparation of monoazo dyes for Wool, characterized in that the diazo compounds of 4-aminohexahydrodiphenyl or its substitution products with customary azo dye components, which at least contain a sulfonic acid group, combined.
DEI34688D 1928-06-17 1928-06-17 Process for the preparation of azo dyes Expired DE533617C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEI34688D DE533617C (en) 1928-06-17 1928-06-17 Process for the preparation of azo dyes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI34688D DE533617C (en) 1928-06-17 1928-06-17 Process for the preparation of azo dyes

Publications (1)

Publication Number Publication Date
DE533617C true DE533617C (en) 1931-09-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
DEI34688D Expired DE533617C (en) 1928-06-17 1928-06-17 Process for the preparation of azo dyes

Country Status (1)

Country Link
DE (1) DE533617C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3202652A (en) * 1962-03-16 1965-08-24 Hoechst Ag Reactive water-soluble monoazodyestuffs

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3202652A (en) * 1962-03-16 1965-08-24 Hoechst Ag Reactive water-soluble monoazodyestuffs

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