DE563623C - Process for the production of dyeings and prints of N-dihydro-1, 2, 1 ', 2'-anthraquinonazines - Google Patents

Process for the production of dyeings and prints of N-dihydro-1, 2, 1 ', 2'-anthraquinonazines

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Publication number
DE563623C
DE563623C DES94851D DES0094851D DE563623C DE 563623 C DE563623 C DE 563623C DE S94851 D DES94851 D DE S94851D DE S0094851 D DES0094851 D DE S0094851D DE 563623 C DE563623 C DE 563623C
Authority
DE
Germany
Prior art keywords
dihydro
anthraquinonazines
dyeings
prints
production
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
DES94851D
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.)
Scottish Dyes Ltd
Original Assignee
Scottish Dyes Ltd
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 Scottish Dyes Ltd filed Critical Scottish Dyes Ltd
Application granted granted Critical
Publication of DE563623C publication Critical patent/DE563623C/en
Expired legal-status Critical Current

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Classifications

    • 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
    • D06P1/22—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 vat dyestuffs including indigo
    • D06P1/28—Esters of vat dyestuffs

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Coloring (AREA)

Description

Verfahren zur Herstellung von Färbungen und Drucken von N-Dihydro-1, 2,1', 2'-anthrachinonazinen Die Erfindung betrifft ein Verfahren zur Herstellung von Färbungen und Drucken von N-Dihydro-i, 2, i', 2'-anthrachinonazinen auf der Faser, wobei die Entwicklung des Farbstoffes mittels eines sauren Oxydationsmittels, z. B. einer sauren Lösung eines Cuprisalzes, erfolgt. Nach der Erfindung werden die Stoffe mit einer Lösung des Schwefelsäureesters vom 2-Aminoanthrachinon oder seiner Derivate imprägniert, welche die i-Stellung frei haben.Process for the production of dyeings and prints of N-Dihydro-1, 2,1 ', 2'-anthraquinonazines The invention relates to a process for the preparation of dyeings and prints of N-dihydro-i, 2, i ', 2'-anthraquinonazines on the Fiber, the development of the dye by means of an acidic oxidizing agent, z. B. an acidic solution of a cupric salt takes place. According to the invention the substances with a solution of the sulfuric acid ester of 2-aminoanthraquinone or its derivatives impregnated, which have the i-position free.

Beispiel i Es wird ein Schwefelsäureester von 2-Acetylaminoanthrachinon in folgender Weise hergestellt 12 Teile 2-Acetylaminoanthrachinon werden mit 5o Teilen trockenem Pyridin und 25 Teilen Schwefeltrioxydpyridin gemischt. Die Temperatur wird unter Umrühren auf 9o° C gebracht. 8 Teile Kupferpulver werden dann zugefügt, worauf die Schmelze bei einer Temperatur von 9o° C eine Stunde lang gehalten wird. Sie wird dann mit ungefähr 25o Teilen 13 Teile Natronlauge enthaltendem Wasser verdünnt und zur Entfernung von Pyridin der Wasserdampfdestillation unterworfen, wobei ihr Volumen annähernd konstant gehalten wird. Die heiße Lösung wird dann zur Trennung von den Kupferrückständen filtriert. Sie enthält das Natriumsalz des 2-Acetylaminoanthrahydrochinonschwefelsäureesters. Diese Lösung wird nach Zusatz von io Teilen Natriumhydroxyd eine Stunde lang gekocht, wodurch die Acetylgruppe entfernt wird, während die Schwefelsäuregruppe vollständig unangegriffen bleibt. Der so hergestellte Schwefelsäureester wird zur Imprägnierung von Stoffen verwendet.Example i A sulfuric acid ester of 2-acetylaminoanthraquinone is used 12 parts of 2-acetylaminoanthraquinone are prepared in the following manner with 5o Parts of dry pyridine and 25 parts of sulfur trioxide pyridine mixed. The temperature is brought to 90 ° C. with stirring. 8 parts of copper powder are then added, whereupon the melt is held at a temperature of 90 ° C. for one hour. It is then diluted with approximately 250 parts of water containing 13 parts of sodium hydroxide solution and subjected to steam distillation to remove pyridine, with her Volume is kept approximately constant. The hot solution then becomes the separation filtered from the copper residues. It contains the sodium salt of the 2-acetylaminoanthrahydroquinone sulfuric acid ester. After adding 10 parts of sodium hydroxide, this solution is boiled for one hour, whereby the acetyl group is removed while the sulfuric acid group is completely remains unaffected. The sulfuric acid ester produced in this way is used for impregnation used by fabrics.

Das imprägnierte Gut wird in einem sauren Oxydationsbade, zweckmäßig in einem sauren Kupfersalzbade, behandelt, wodurch ein blauer Farbstoff, vermutlich der Anthrachinonazinklasse, auf der Faser gefällt wird.The impregnated material is expedient in an acidic oxidation bath treated in an acidic copper salt bath, creating a blue dye, presumably the anthraquinone azine class on which fiber is precipitated.

Der Schwefelsäureester kann auch mit Chlorsulfonsäure oder anderen Veresterungsmitteln hergestellt werden.The sulfuric acid ester can also be mixed with chlorosulfonic acid or others Esterification agents are produced.

Beispiele Baumwollenes Tuch wird in einer kalten neutralen Lösung des Natriumsalzes vom a - Amino-3-methylanthrahydrochinon-9, i o-dischwefelsäureester geklotzt, gequetscht und getrocknet. Es wird dann in ein Bad eingetaucht, ;das 2 °,'o hydratisiertes Cuprisulfät, 2 % Salzsäure vom spez. Gewicht i, i 6 und io °1o Natriumchlorid enthält. Die Badtemperatur beträgt 9o bis 95' C. Das Gut wird in dem Bade 2 bis 3 Minuten belassen. Nach dem üblichen Seifen erhält man ein leuchtendes Blau. Der Farbstoff ist vermutlich als ein 1, 2, i',2'-N-Dihydro-3, 3'-dimethylanthrachinonazin anzusprechen.Examples Cotton cloth is padded in a cold, neutral solution of the sodium salt of α-amino-3-methylanthrahydroquinone-9, i-o-disulfuric acid ester, squeezed and dried. It is then immersed in a bath; the 2 °, 'o hydrated cupric sulfate, 2% hydrochloric acid of the spec. Contains weight i, i 6 and io ° 1o sodium chloride. The bath temperature is 90 to 95 ° C. The material is left in the bath for 2 to 3 minutes. After the usual soaping, you get a bright blue. The dye is presumably to be addressed as a 1, 2, i ', 2'-N-dihydro-3, 3'-dimethylanthraquinone azine.

Claims (1)

PATRNTANSPRUCI3: Verfahren zur Herstellung von Färbungen und Drucken von N-Dihydro-i, 2, i', 2'-anthrachinonazinen, dadurch gekennzeichnet, daB man Schwefelsäureester des 2-Aminoanthrachinons oder seiner Derivate, die noch eine freie i-Stellung haben, auf der Faser mit sauren Lösungen von Oxydationsmitteln behandelt.PATRNTANSPRUCI3: Process for the production of dyeings and prints of N-dihydro-i, 2, i ', 2'-anthraquinonazines, characterized in that sulfuric acid esters of 2-aminoanthraquinone or its derivatives, which still have a free i-position, treated on the fiber with acidic solutions of oxidizing agents.
DES94851D 1927-11-18 1928-11-18 Process for the production of dyeings and prints of N-dihydro-1, 2, 1 ', 2'-anthraquinonazines Expired DE563623C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB563623X 1927-11-18

Publications (1)

Publication Number Publication Date
DE563623C true DE563623C (en) 1932-11-09

Family

ID=10476427

Family Applications (1)

Application Number Title Priority Date Filing Date
DES94851D Expired DE563623C (en) 1927-11-18 1928-11-18 Process for the production of dyeings and prints of N-dihydro-1, 2, 1 ', 2'-anthraquinonazines

Country Status (1)

Country Link
DE (1) DE563623C (en)

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