DE593572C - Process for the production of gray dyes of the anthraquinone series - Google Patents

Process for the production of gray dyes of the anthraquinone series

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Publication number
DE593572C
DE593572C DEC44094D DEC0044094D DE593572C DE 593572 C DE593572 C DE 593572C DE C44094 D DEC44094 D DE C44094D DE C0044094 D DEC0044094 D DE C0044094D DE 593572 C DE593572 C DE 593572C
Authority
DE
Germany
Prior art keywords
gray
dyes
production
anthraquinone series
parts
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
DEC44094D
Other languages
German (de)
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.)
Sandoz AG
Original Assignee
Sandoz 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 Sandoz AG filed Critical Sandoz AG
Priority to DEC44094D priority Critical patent/DE593572C/en
Application granted granted Critical
Publication of DE593572C publication Critical patent/DE593572C/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
    • C09B1/00Dyes with anthracene nucleus not condensed with any other ring
    • C09B1/16Amino-anthraquinones
    • C09B1/20Preparation from starting materials already containing the anthracene nucleus
    • C09B1/26Dyes with amino groups substituted by hydrocarbon radicals
    • C09B1/32Dyes with amino groups substituted by hydrocarbon radicals substituted by aryl groups
    • C09B1/34Dyes with amino groups substituted by hydrocarbon radicals substituted by aryl groups sulfonated

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

Description

Verfahren zur Herstellung von grauen Farbstoffen der Anthrachinonreihe Aus dem Hauptpatent 578.415 ist zu entnehmen, daß die Farbstoffe der allgemeinen Formel worin X Halogen oder S03 H und Y Wasserstoff oder S03H bedeuten, Wolle in saurem Bade in grauen, blaugrauen bis grüngrauen Tönen von hervorragender Echtheit anfärben und nachchromiert werden können.Process for the preparation of gray dyes of the anthraquinone series From the main patent 578.415 it can be seen that the dyes of the general formula where X is halogen or SO3 H and Y is hydrogen or SO3H, wool can be dyed in an acid bath in gray, blue-gray to green-gray shades of excellent fastness and can be re-chromed.

Es wurde nun weiter gefunden, daß, wenn man. an Stelle der Phenylendiamine des Hauptpatents Naphthylendiamine verwendet, man ähnliche neue wertvolle Farbstoffe erhält, welche Wolle in saurem Bade ebenfalls in grauen Tönen von hervorragender Echtheit anfärben. Auch diese Färbungen besitzen die Eigenschaft, durch Nachbehandlung mit Chromaten oder Bichromaten unter mehr oder weniger ausgeprägter Nuancenverschiebung in grüngraue bis braungraue Töne überzugehen. Einzelne der neuen Farbstoffe sind ferner vorzüglich zum Färben von chargierter Naturseide in neutralem Bade geeignet.It has now been further found that if one. instead of the phenylenediamines of the main patent naphthylenediamines, one uses similar new valuable dyes receives, which wool in acid baths is also excellent in gray tones Color authenticity. These colorations also have the property of after-treatment with chromates or bichromates with a more or less pronounced shift in nuances to change into green-gray to brown-gray tones. Some of the new dyes are also particularly suitable for dyeing charged natural silk in neutral baths.

Die neuen Farbstoffe können in der Weise hergestellt werden, daß man i-Amino-2, 4-dihalogenanthrachinone oder i-Amino-4-halogenanthrachinon-2-sulfonsäuren, welche im zweiten Benzolkern des Anthrachinonmoleküls eine S03H-Gruppe enthalten, mit Naphthylendiaminen, z. B. i, 5-Naphthylendiamin, und Kupfer oder Kupferverbindungen bei Gegenwart von säurebindenden Mitteln erhitzt und die entstandenen wohlcharakterisierten Verbindungen gegebenenfalls in bekannter Weise sulfoniert.The new dyes can be prepared in such a way that one i-Amino-2, 4-dihalogenanthraquinones or i-amino-4-halogenanthraquinone-2-sulfonic acids, which contain an S03H group in the second benzene nucleus of the anthraquinone molecule, with naphthylenediamines, e.g. B. i, 5-naphthylenediamine, and copper or copper compounds heated in the presence of acid-binding agents and the resulting well-characterized Compounds optionally sulfonated in a known manner.

Beispiel i 2o Teile. i-amino-2, 4-dibrom-8-anthrachinonsulfönsaures Kalium werden auf dem Wasserbade in einer indifferenten Atmosphäre mit 15 Teilen i, 5-Naphthylendiamin, 5 Teilen calciniertem Natriumcarbonat, 3 Teilen Kupfervitriol und 3oo Teilen Wasser während 5 bis 6 Stunden auf 95 bis 98' C erhitzt. Die entstandene Masse wird dann in 3ooo Teile angesäuertes `Wasser eingerührt und die ausgeschiedene Monosulfonsäure filtriert und gewaschen. Diese wird nun weiter mit Alkalisulfit in Gegenwart von Wasser und Phenol so lange unter Druck erhitzt, bis das in 2-Stellung befindliche Bromatom durch die Sulfonsäuregruppe ersetzt ist. Darauf bläst man das Phenol mit Dampf ab und salzt den Farbstoff aus. Er färbt Wolle in saurem Bade in grauen Tönen, welche durch Nachchromieren grünlichgrau werden. Die Färbungen besitzen ausgezeichnete Echtheitseigenschaften.Example i 2o parts. Potassium i-amino-2, 4-dibromo-8-anthraquinonesulphonate is increased to 95 parts on a water bath in an inert atmosphere with 15 parts of i, 5-naphthylenediamine, 5 parts of calcined sodium carbonate, 3 parts of vitriol and 300 parts of water for 5 to 6 hours heated to 98 ° C. The resulting mass is then stirred into 3,000 parts of acidified water and the precipitated monosulfonic acid is filtered and washed. This is then further heated under pressure with alkali sulfite in the presence of water and phenol until the 2-position bromine atom has been replaced by the sulfonic acid group. The phenol is then blown off with steam and the dye is salted out. It dyes wool in an acidic bath in gray tones, which become greenish-gray when chromium plating. The dyeings have excellent fastness properties.

Beispiel 2 Ersetzt man das im Beispiel 1 verwendete 1, 5-Naphthylendiamin durch 15 Teile 1, 8-Naphthylendiamin, so erhält man nach gleicher Arbeitsweise einen Farbstoff,- welcher Wolle in saurem Bade in grauen Tönen färbt, welche durch Nachchromieren braungrau werden. Die Echtheit dieser Färbungen ist ausgezeichnet. Der Farbstoff besitzt ferner sehr gute Affinität für chargierte Naturseide und färbt diese in neutralem Bade grau.Example 2 The 1,5-naphthylenediamine used in Example 1 is replaced by 15 parts of 1,8-naphthylenediamine, one obtains a by the same procedure Dye - which dyes wool in an acid bath in gray tones, which by re-chroming turn brown-gray. The fastness of these dyeings is excellent. The dye also has a very good affinity for charged natural silk and dyes it in neutral bath gray.

Claims (1)

PATENTANSPRUCIi Abänderung des durch das Patent 578 415 geschützten Verfahrens zur Herstellung von grauen Farbstoffen der Anthrachinonreihe, dadurch gekennzeichnet, daß man Anthrachinonderivate der allgemeinen Formel worin X ein Halogen oder eine S O;, H-Gruppe bedeutet, mit Naphthylendiaminen kondensiert.PATENT CLAIMS Modification of the process protected by patent 578 415 for the preparation of gray dyes of the anthraquinone series, characterized in that anthraquinone derivatives of the general formula wherein X is a halogen or a SO ;, H group, condensed with naphthylenediamines.
DEC44094D 1929-12-08 1929-12-08 Process for the production of gray dyes of the anthraquinone series Expired DE593572C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEC44094D DE593572C (en) 1929-12-08 1929-12-08 Process for the production of gray dyes of the anthraquinone series

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEC44094D DE593572C (en) 1929-12-08 1929-12-08 Process for the production of gray dyes of the anthraquinone series

Publications (1)

Publication Number Publication Date
DE593572C true DE593572C (en) 1934-03-03

Family

ID=7025666

Family Applications (1)

Application Number Title Priority Date Filing Date
DEC44094D Expired DE593572C (en) 1929-12-08 1929-12-08 Process for the production of gray dyes of the anthraquinone series

Country Status (1)

Country Link
DE (1) DE593572C (en)

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