DE582688C - Process for the preparation of o-oxyazo dyes - Google Patents

Process for the preparation of o-oxyazo dyes

Info

Publication number
DE582688C
DE582688C DEI44251D DEI0044251D DE582688C DE 582688 C DE582688 C DE 582688C DE I44251 D DEI44251 D DE I44251D DE I0044251 D DEI0044251 D DE I0044251D DE 582688 C DE582688 C DE 582688C
Authority
DE
Germany
Prior art keywords
parts
preparation
dyes
sulfonic acid
oxyazo
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
DEI44251D
Other languages
German (de)
Inventor
Dr Walther Benade
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 DEI44251D priority Critical patent/DE582688C/en
Application granted granted Critical
Publication of DE582688C publication Critical patent/DE582688C/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
    • 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
    • C09B45/14—Monoazo compounds
    • C09B45/16—Monoazo compounds containing chromium
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/02—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using azo dyes

Description

Es wurde gefunden, daß man zu Farbstoffen, die zum Färben von Wolle nach dem Einbadchromverfahren geeignet sind, gelangt, wenn man solche diazotierten 2-Amino-r-oxybenzole, welche eine Sulfonsäuregruppe enthalten, mit dem in den Berichten der Deutschen Chemischen Gesellschaft, Band 60, 1927, S. 841 beschriebenen 2 · 4-Dioxy-a-naphthoc'hinolin (7 · 8-Benzo-2 · 4-dioxychinolin) kuppelt. It has been found that dyes that are used for dyeing wool after Single-bath chromium processes are suitable, if such diazotized 2-amino-r-oxybenzenes, which contain a sulfonic acid group, with which in the reports of the German Chemical Society, Volume 60, 1927, P. 841 described 2x4-Dioxy-a-naphthoc'hinolin (7 · 8-Benzo-2 · 4-dioxyquinoline) couples.

Die Farbstoffe zeichnen sich durch sehr gute Löslichkeit aus und ergeben auf Wolle nach dem Einbadchromverfahren rote bis violette Färbungen, die eine gute Walk- und Waschechtheit und eine ausgezeichnete Lichtechtheit besitzen.The dyes are characterized by very good solubility and result on wool after the single-bath chrome process, red to purple colorations that give a good fulling and Have washfastness and excellent lightfastness.

B e i s ρ i el ιB e i s ρ i el ι

22,4 Teile ^Chlor^-amino-i-oxybenzol-6-sulfonsäure werden mit etwa 300 Teilen Wasser angeschlämmt und nach Zusatz von 5 Teilen Salzsäure von 120 Be mit 6,9 Teilen Natriumnitrit bei 10° C diazotiert. Die fertige Diazoverbindung läuft in eine kalte Lösung von 23 Teilen 7 · 8-Benzo-2 · 4-dioxychinolin und 20 Teilen Soda in etwa 500 Teilen Wasser. Nach beendeter Kupplung wird die Reaktionsmasse auf 8o° C angewärmt und der Farbstoff durch Zusatz von Salz abgeschieden. Er stellt in trockenem Zustande ein dunkles Pulver von sehr guter Löslichkeit dar und färbt Wolle nach dem Einbadchromverfahren in rotvioletten Tönen von guter WaIk- und Waschechtheit. Die Färbungen besitzen eine ausgezeichnete Lichtechtheit.22.4 parts of ^ chloro ^ -amino-i-oxybenzene-6-sulfonic acid are suspended in about 300 parts of water and, after addition of 5 parts of hydrochloric acid of 12 0 Be, diazotized with 6.9 parts of sodium nitrite at 10 ° C. The finished diazo compound runs into a cold solution of 23 parts of 7 · 8-benzo-2 · 4-dioxyquinoline and 20 parts of soda in about 500 parts of water. After the coupling has ended, the reaction mass is warmed to 80 ° C. and the dye is deposited by adding salt. When dry, it is a dark powder of very good solubility and dyes wool in red-violet shades of good fastness to washing and washing using the single-bath chrome process. The dyeings have excellent lightfastness.

Ein ähnliches Ergebnis wird bei Verwendung von 4 - Chlor - 2 - amino - 1 - oxybenzol-5-sulfonsäure erhalten.A similar result is obtained when using 4 - chloro - 2 - amino - 1 - oxybenzene-5-sulfonic acid obtain.

Beispiel 2Example 2

Eine aus 23,4 Teilen 4-Nitro-2-arnino-i-oxybenzol-6-sulfonsäure, 6,9 Teilen Natriumnitrit und 5 Teilen Salzsäure von 120Be in etwa 500 Teilen Wasser bereitete Diazoverbindung wird zu einer mit Eis versetzten Auflösung von 23 Teilen 7 · 8-Benzo-2 · 4-dioxychinolin und 20 Teilen Soda in 500 Teilen Wasser gegeben. Der entstandene Farbstoff wird vollständig ausgesalzen und bildet getrocknet ein dunkles, sehr gut lösliches Pulver, das Wolle nach dem Einbadchromverfahren in granatfarbenen Tönen von guter Walk- und Waschechtheit färbt.A diazo compound prepared from 23.4 parts of 4-nitro-2-arnino-i-oxybenzene-6-sulfonic acid, 6.9 parts of sodium nitrite and 5 parts of hydrochloric acid of 12 0 Be in about 500 parts of water becomes a solution of mixed with ice 23 parts of 7 · 8-benzo-2 · 4-dioxyquinoline and 20 parts of soda in 500 parts of water. The resulting dye is completely salted out and, when dried, forms a dark, very soluble powder that dyes wool in garnet-colored shades with good mill and wash fastness using the single-bath chrome process.

Claims (1)

Patentanspruch:Claim: Verfahren zur Herstellung von o-Oxyazofarbstoffen^ dadurch gekennzeichnet, daß man solche diazotierten 2-Aminoi-oxybenzole, die eine Sulfonsäuregruppe •enthalten, mit 7-8-Benzo-2-4<-diOxycbinolin kuppelt.Process for the preparation of o-oxyazo dyes ^ characterized in that such diazotized 2-amino-oxybenzenes which contain a sulfonic acid group • are coupled with 7-8-benzo-2-4 < -dioxycbinoline. *) Von dem Patentsucher ist als der Erfinder angegeben tvorden:*) The patent seeker stated as the inventor: Dr. Walther Benade in Dessau.Dr. Walther Benade in Dessau.
DEI44251D 1932-04-19 1932-04-19 Process for the preparation of o-oxyazo dyes Expired DE582688C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEI44251D DE582688C (en) 1932-04-19 1932-04-19 Process for the preparation of o-oxyazo dyes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI44251D DE582688C (en) 1932-04-19 1932-04-19 Process for the preparation of o-oxyazo dyes

Publications (1)

Publication Number Publication Date
DE582688C true DE582688C (en) 1933-08-21

Family

ID=7191242

Family Applications (1)

Application Number Title Priority Date Filing Date
DEI44251D Expired DE582688C (en) 1932-04-19 1932-04-19 Process for the preparation of o-oxyazo dyes

Country Status (1)

Country Link
DE (1) DE582688C (en)

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