DE393268C - Process for the representation of gray Kuepen colors - Google Patents

Process for the representation of gray Kuepen colors

Info

Publication number
DE393268C
DE393268C DEB102706D DEB0102706D DE393268C DE 393268 C DE393268 C DE 393268C DE B102706 D DEB102706 D DE B102706D DE B0102706 D DEB0102706 D DE B0102706D DE 393268 C DE393268 C DE 393268C
Authority
DE
Germany
Prior art keywords
gray
parts
representation
kuepen
colors
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
DEB102706D
Other languages
German (de)
Inventor
Dr Max A Kunz
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.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Priority to DEB102706D priority Critical patent/DE393268C/en
Application granted granted Critical
Publication of DE393268C publication Critical patent/DE393268C/en
Expired legal-status Critical Current

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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
    • C09B3/00—Dyes with an anthracene nucleus condensed with one or more carbocyclic rings
    • C09B3/22—Dibenzanthrones; Isodibenzanthrones
    • C09B3/30—Preparation from starting materials already containing the dibenzanthrone or isodibenzanthrone nucleus

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

Verfahren zur Darstellung von grauen Küpenfarbstoffen. Gemäß Patentschrift 185222 erhält man durch Nitrierung von Dibenzanthron und nachfolgende Reduktion ein Aminoviolanthren, das als wertvoller grünerKüpenfarbstoff Verwendung findet.Process for the representation of gray vat dyes. According to patent specification 185222 is obtained by nitration of dibenzanthrone and subsequent reduction an aminoviolanthrene that is used as a valuable green vat dye.

Es wurde die überraschende Beobachtung gemacht, daß man aus Dibenzanthron unmittelbar durch Einwirkung von Hydroxylamin neue Dibenzanthronderivate erhält, die möglicherweise Aminodibenzanthrone vorstellen, die aber keine grünen Farbstoffe sind, sondern die Faser aus der Küpe in wertvollen blaustichigen Grautönen von hervorragenden Echtheitseigenschaften anfärben.The surprising observation was made that one made of dibenzanthrone receives new dibenzanthrone derivatives directly through the action of hydroxylamine, which may represent aminodibenzanthrones, but which do not have green dyes are, but the fiber from the vat in valuable blue-tinged gray tones of excellent Dye fastness properties.

Beispiel i.Example i.

1ooTeile Dibenzanthron (erhalten aus Benzanthron nach Patent 185221 durch Verschmelzen mit kaustischem Kali bzw. Patent 290079 durch Erhitzen mit Kali in Anilin) werden in,ooo Teilen Schwefelsäure von 66° B6 unter Rühren gelöst. Nach Zusatz von 39 Teilen Hydroxylaminsulfat heizt man innerhalb 11/2 bis z Stunden auf 165' auf und hält die Temperatur der Schmelze noch während 3/4 Stunden bei 165 bis 17o °. Die erkaltete Schmelze wird in Wasser gerührt, der ausgefallene Niederschlag filtriert und mit M'asser gewaschen.100 parts of dibenzanthrone (obtained from benzanthrone according to patent 185221 by fusing with caustic potash or patent 290079 by heating with potash in aniline) are dissolved in, 000 parts of sulfuric acid at 66 ° B6 with stirring. After adding 39 parts of hydroxylamine sulfate, the mixture is heated to 165 ° in the course of 11/2 to z hours and the temperature of the melt is maintained at 165 to 170 ° for 3/4 hours. The cooled melt is stirred in water, the precipitate which has separated out is filtered off and washed with M'asser.

Beispiel z.Example

Eine Lösung von Zoo Teilen Dibenzanthron in zooo Teilen Schwefelsäure von 66'B6 wird nach Zusatz von 42 Teilen Hydroxylaminchlorhydrat und i10 Teilen Eisenvitriol während a Stunden unter Rühren auf 165 bis 170° erhitzt und wie in Beispiel i beschrieben aufgearbeitet. Beispiel 3.A solution of zoo parts dibenzanthrone in zooo parts sulfuric acid of 66'B6 is after the addition of 42 parts of hydroxylamine chlorohydrate and i10 parts Iron vitriol heated to 165 to 170 ° for a hour with stirring and as in Example i described worked up. Example 3.

In eine Lösung von looo Teilen Dibenzanthron in zooo Teilen Schwefelsäure von 66° B6 trägt man unter Rühren 56 Teile Hydroxylaminsulfat und 5o Teile Eisenvitriol ein. Das Reaktionsgemisch wird innerhalb z Stunden allmählich auf 16o' erhitzt und während einer weiteren Stunde bei dieser Temperatur gehalten. Nach dem Erkalten kann die Schmelze, wie in Beispiel s beschrieben, aufgearbeitet werden...In a solution of 1,000 parts of dibenzanthrone in 1,000 parts of sulfuric acid from 66 ° B6, 56 parts of hydroxylamine sulfate and 50 parts of iron vitriol are carried with stirring a. The reaction mixture is gradually heated to 16o 'over the course of z hours held at this temperature for a further hour. After cooling down the melt can be worked up as described in example s ...

Die auf diese Weise erhaltenen Farbstoffe färben Baumwolle aus violetter Küpe in ebensolchen Tönen an, die beim Waschen in blaugrau übergehen. An Stelle von Hydroxylamin kann auch elektrolytisch reduzierte Salpeterschwefelsäure angewandt werden.The dyes obtained in this way dye cotton from purple Vat in the same shades that turn blue-gray when washed. Instead of Electrolytically reduced nitric sulfuric acid can also be used for hydroxylamine will.

Claims (1)

PATENT-ANSPRUcH: Verfahren zur Darstellung von grauen Küpenfarbstoffen, darin bestehend, daß man auf Dibenzanthron Hydroxylamin einwirken läßt.PATENT CLAIM: Process for the representation of gray vat dyes, consisting in allowing hydroxylamine to act on dibenzanthrone.
DEB102706D 1921-12-09 1921-12-09 Process for the representation of gray Kuepen colors Expired DE393268C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB102706D DE393268C (en) 1921-12-09 1921-12-09 Process for the representation of gray Kuepen colors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB102706D DE393268C (en) 1921-12-09 1921-12-09 Process for the representation of gray Kuepen colors

Publications (1)

Publication Number Publication Date
DE393268C true DE393268C (en) 1924-04-01

Family

ID=6990517

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB102706D Expired DE393268C (en) 1921-12-09 1921-12-09 Process for the representation of gray Kuepen colors

Country Status (1)

Country Link
DE (1) DE393268C (en)

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