DE607943C - Process for the production of azo dyes - Google Patents

Process for the production of azo dyes

Info

Publication number
DE607943C
DE607943C DEI47900D DEI0047900D DE607943C DE 607943 C DE607943 C DE 607943C DE I47900 D DEI47900 D DE I47900D DE I0047900 D DEI0047900 D DE I0047900D DE 607943 C DE607943 C DE 607943C
Authority
DE
Germany
Prior art keywords
azo dyes
production
oxyquinoline
dyes
dye
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
DEI47900D
Other languages
German (de)
Inventor
Dr Hans Krzikalla
Dr Walter Limbacher
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 DEI47900D priority Critical patent/DE607943C/en
Application granted granted Critical
Publication of DE607943C publication Critical patent/DE607943C/en
Expired legal-status Critical Current

Links

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
    • C09B29/00—Monoazo dyes prepared by diazotising and coupling
    • C09B29/34—Monoazo dyes prepared by diazotising and coupling from other coupling components
    • C09B29/36—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds

Landscapes

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

Description

Verfahren zur Herstellung von Azofarbstoffen Es wurde gefunden, daß man wertvolle Azofarbstoffe erhält, wenn man 8-Oxychinolin-5-sulfonsäure oder deren Derivate, z. B. 6-Methyl- oder 6-Alkoxy-8-oxychinolin-5-sid.-fonsäure, mit dianotiertem i- oder a-Aminonaphthalinkuppelt. Farbstoffe dieserArt geben beim Nachbehandeln auf der Faser mit Bichromat oder beim Färben auf chromgebeizte Wolle sehr schöne 'braune Färbungen von hervorragender Licht-, Wasch- und Walkechtheit und sehr gutem Egalisiervermögen. Sie können auch aus neutralem chromsalzhaltigem Bade - im sog. Metachromverfahren - auf Wolle gefärbt werden,. Sie zeigen hierbei ein sehr gutes Ziehvermögen und liefern Färbungen von hervorragenden Echtheitseigenschaften.Process for the preparation of azo dyes It has been found that valuable azo dyes are obtained if 8-oxyquinoline-5-sulfonic acid or its Derivatives, e.g. B. 6-methyl- or 6-alkoxy-8-oxyquinoline-5-sid.-fonsäure, with dianotierter i- or a-aminonaphthalene coupled. Dyes of this type give on aftertreatment very beautiful on the fiber with bichromate or when dyeing on chrome-stained wool 'Brown dyeings of excellent lightfastness, washfastness and milled fastness and very good Equalizing ability. You can also choose from a neutral bath containing chromium salt - in the so-called. Metachrome process - to be dyed on wool. You show a very good one here Drawability and provide dyeings with excellent fastness properties.

Man hat schon Farbstoffe aus Diazoarylsulfon- oder -carbonsäuren und 8-Oxychinolin oder 8-Oxychinolinsulfonsäure hergestellt. Die so erhältlichen Farbstoffe sind jedoch zur Färbung nach dem Metachromverfahren praktisch unbrauchbar.One already has dyes from diazoarylsulfonic or carboxylic acids and 8-oxyquinoline or 8-oxyquinoline sulfonic acid. The dyes obtainable in this way however, they are practically useless for coloring by the metachrome process.

B e i s p i e 1: Man dianotiert 14,3 Teile i - Aminonaphthalin in der üblichen Weise und läßt die erhaltene Lösung der Diazoverbindung zu einer sadaalkalischen Lösung von 24,7 Teilen 8-Oxychinolin-5@sulf@onsäure fließen. Man erhält einen Farbstoff, der, auf Wolle gefärbt, gleichmäßig rote Töne liefert. Beim Nachbehandeln der Färbung mit Bichromatoder beim Färben auf chromgebeizte Wolle erhält man eine schöne braune Färbung von hervorragender Licht-, Wasch- und Walkechtheit. Der Farbstoff zieht auch sehr gut aus neutralem chromsalzhaltigem Bade und liefert hierbei den gleichen Farbton.Example 1: 14.3 parts of i-aminonaphthalene are dianotized in the usual way and leaves the resulting solution of the diazo compound to a sada-alkaline one Solution of 24.7 parts of 8-oxyquinoline-5 @ sulf @ on acid flow. A dye is obtained which, when dyed on wool, produces evenly red tones. When post-treating the dye with bichromate or dyeing on chrome-stained wool you get a beautiful brown color Coloring with excellent lightfastness, washfastness and milled fastness. The dye pulls also very good from neutral bath containing chromium salt and delivers the same here Hue.

Einen Farbstoff von ähnlicher Nuance erhält man, wenn man z-Aminonaphthalin als Diazokomponente verwendet.A dye of a similar shade is obtained by using z-aminonaphthalene used as a diazo component.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von Azofarbstoffen, dadurch gekennzeichnet, daß man 8-Oxychinolin-5-.sulfonsäure oder deren Derivate mit dianotiertem i- oder a-Aminonaphthalin kuppelt.PATENT CLAIM: Process for the production of azo dyes, thereby characterized in that 8-oxyquinoline-5-sulfonic acid or its derivatives are dianotized i- or a-aminonaphthalene couples.
DEI47900D 1933-09-07 1933-09-07 Process for the production of azo dyes Expired DE607943C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEI47900D DE607943C (en) 1933-09-07 1933-09-07 Process for the production of azo dyes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI47900D DE607943C (en) 1933-09-07 1933-09-07 Process for the production of azo dyes

Publications (1)

Publication Number Publication Date
DE607943C true DE607943C (en) 1935-01-11

Family

ID=7192110

Family Applications (1)

Application Number Title Priority Date Filing Date
DEI47900D Expired DE607943C (en) 1933-09-07 1933-09-07 Process for the production of azo dyes

Country Status (1)

Country Link
DE (1) DE607943C (en)

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