CH175247A - Process for the preparation of an acidic wool dye of the anthraquinone series. - Google Patents

Process for the preparation of an acidic wool dye of the anthraquinone series.

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Publication number
CH175247A
CH175247A CH175247DA CH175247A CH 175247 A CH175247 A CH 175247A CH 175247D A CH175247D A CH 175247DA CH 175247 A CH175247 A CH 175247A
Authority
CH
Switzerland
Prior art keywords
preparation
anthraquinone series
acidic
dye
mol
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellsc Farbenindustrie
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
Publication of CH175247A publication Critical patent/CH175247A/en

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Description

  

  Verfahren zur Darstellung eines sauren     Wollfarbstoffes    der     Anthrachinonreihe.       Gegenstand vorliegenden Zusatzpatentes  ist ein Verfahren zur Darstellung eines  sauren     Wollfarbstoffes    der     Anthrachinon-          reihe,    das .darin besteht,     dass,    man 1     Mol          Chinizarin    mit 2     Mol        1-Amino-4-cyclohexyl-          berrzol    zur Umsetzung bringt und den so er  haltenen Stoff     sulfiert.       <I>Beispiel:

  </I>  10 Gewichtsteile     Leukochinizarin,    20  Gewichtsteile     Chinizarin    und 15 Gewichts  teile Borsäure werden mit 200 Gewichts  teilen 1-     Amino    - 4 -     cyclohexylbenzol    unter  Rühren auf 120 bis 130   erhitzt, bis die  Schmelze eine klare grünstickig blaue Farbe  angenommen hat. Darauf wird Luft eingelei  tet und bei 7 0   mit 150 Gewichtsteilen Alko  hol verdünnt. Das kristallin abgeschiedene       Kondensationsprodukt    wird abgesaugt, ge  trocknet und aus Benzol umkristallisiert.  Man erhält ein Produkt vom Schmelzpunkt  <B>181</B>  . Die Lösungsfarbe in konzentrierter    Schwefelsäure ist rotstickig blau.

   Der Farb  stoff gibt nach der     Sulfierung    mit 5%igem       Oleum    bei Zimmertemperatur eine     Disulfo-          säure    und färbt Wolle aus saurem Bade in  grünen Tönen. Die     Färbungen    besitzen eine  sehr gute Walk- und Waschechtheit. Das in  dieser Reaktion verwendete     Leukochinizarin     dient dazu die     Reaktion    einzuleiten, und die  verwendete Luft oxydiert etwa gebildete       Leukoverbindungen.  



  Process for the preparation of an acidic wool dye of the anthraquinone series. The subject of the present additional patent is a process for the preparation of an acidic wool dye of the anthraquinone series, which consists in that 1 mole of quinizarine is reacted with 2 moles of 1-amino-4-cyclohexylberrzene and the substance thus obtained is sulfated. <I> example:

  10 parts by weight of leucoquinizarine, 20 parts by weight of quinizarine and 15 parts by weight of boric acid are heated with 200 parts by weight of 1 - amino - 4 - cyclohexylbenzene to 120 to 130 while stirring until the melt has taken on a clear greenish blue color. Then air is introduced and diluted at 7 0 with 150 parts by weight of alcohol. The condensation product, which has separated out in crystalline form, is filtered off with suction, dried and recrystallized from benzene. A product with a melting point of <B> 181 </B> is obtained. The color of the solution in concentrated sulfuric acid is red and blue.

   After sulphonation with 5% oleum, the dye gives a disulphonic acid at room temperature and dyes wool from an acid bath in green tones. The dyeings have very good mill and wash fastness. The leucoquinizarin used in this reaction is used to initiate the reaction, and the air used oxidizes any leuco compounds formed.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines sauren Wollfarbstoffes der Anthrachinonreihe, da durch gekennzeichnet, dass man 1 Mol Chini- zarin mit 2 Mol 1-Amino-4-cyclohexylbenzol zur Umsetzung bringt und den so erhaltenen Stoff sulfiert. Die so erhaltene Disulfosäure färbt Wolle aus saurem Bade in grünen Tönen von sehr guter Walk- und Waschechtheit. UNTERANSPRüCHE: 1. PATENT CLAIM: Process for the preparation of an acidic wool dye of the anthraquinone series, characterized in that 1 mol of quinizarin is reacted with 2 mol of 1-amino-4-cyclohexylbenzene and the substance thus obtained is sulfated. The disulfonic acid obtained in this way dyes wool from an acid bath in green shades of very good mill and wash fastness. SUBCLAIMS: 1. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass die Umsetzung zwi schen den Reaktionskomponenten in Ge genwart von Leukochinizarin und Bor säure durch Erhitzen der Komponenten auf 120 bis<B>130'</B> unter Rühren erfolgt, bis die Schmelze eine klare grünstichig blaue Farbe angenommen hat. 2. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man die Sulfierung mit 5 % igem Oleum bei Zimmertempera tur bewirkt. Process according to claim, characterized in that the reaction between the reaction components in the presence of leucoquinizarine and boric acid takes place by heating the components to 120 to 130 'with stirring until the melt has a clear greenish blue color has accepted. 2. The method according to claim, characterized in that the sulfonation is effected with 5% oleum at room temperature.
CH175247D 1932-09-19 1934-02-28 Process for the preparation of an acidic wool dye of the anthraquinone series. CH175247A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH163898T 1932-09-19
DE175247X 1933-03-01

Publications (1)

Publication Number Publication Date
CH175247A true CH175247A (en) 1935-02-15

Family

ID=25717896

Family Applications (1)

Application Number Title Priority Date Filing Date
CH175247D CH175247A (en) 1932-09-19 1934-02-28 Process for the preparation of an acidic wool dye of the anthraquinone series.

Country Status (1)

Country Link
CH (1) CH175247A (en)

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