CH261860A - Process for the preparation of a vivid acid dye of the anthraquinone series. - Google Patents

Process for the preparation of a vivid acid dye of the anthraquinone series.

Info

Publication number
CH261860A
CH261860A CH261860DA CH261860A CH 261860 A CH261860 A CH 261860A CH 261860D A CH261860D A CH 261860DA CH 261860 A CH261860 A CH 261860A
Authority
CH
Switzerland
Prior art keywords
blue
sulfuric acid
dye
preparation
amino
Prior art date
Application number
Other languages
German (de)
Inventor
Ag Sandoz
Original Assignee
Ag Sandoz
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 Ag Sandoz filed Critical Ag Sandoz
Publication of CH261860A publication Critical patent/CH261860A/en

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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
    • C09B1/28Dyes with amino groups substituted by hydrocarbon radicals substituted by alkyl, aralkyl or cyclo alkyl groups
    • C09B1/30Dyes with amino groups substituted by hydrocarbon radicals substituted by alkyl, aralkyl or cyclo alkyl groups sulfonated
    • C09B1/303Dyes with amino groups substituted by hydrocarbon radicals substituted by alkyl, aralkyl or cyclo alkyl groups sulfonated only sulfonated in the anthracene nucleus

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

Description

  

      Zusatzpatent    zum Hauptpatent Nr. 255968.    <B>Verfahren</B>     zur   <B>Herstellung eines</B>     lebhaften        sauren        Farbstoffes   <B>der</B>     Anthrachinonreihe.       Das vorliegende Patent betrifft ein Ver  fahren zur Herstellung eines neuen sauren  Farbstoffes der     Anthrachinonreihe    und ist  dadurch gekennzeichnet, dass man     1-Amino-4-          bromanhtrachinon-2-sulfonsäure    mit     1-Amino-          2,4,6-trimethylcyclohexan    kondensiert.  



  <I>Beispiel:</I>  8,1 Teile     1-amino-4-bromanthrachinon-2-          sulfonsaures    Natrium, 40 Teile     1-Amino-2,4,6-          trimethylcyclohexan,    4 Teile Natronlauge  30 %, 0,1 Teil Kupferpulver, 0,1 Teil     Kupfer-          chlorür    und 120 Teile Wasser werden unter  Rühren und Einleiten eines mässigen Stick  stoffstromes so lange auf 60 bis<B>800</B> erhitzt,  bis die Masse blau geworden ist. Das Konden  sationsprodukt wird auf übliche Weise auf  gearbeitet. Der Farbstoff ist ein blaues Pul  ver, das sich in kaltem Wasser ziemlich leicht  mit blauer Farbe löst. Seine Lösungsfarbe in  konzentrierter Schwefelsäure ist hellgelb.

    Beim Zusatz von     Paraformaldehyd    zur schwe  felsauren Lösung tritt ein Farbumschlag nach  klar     grünstichig    Blau ein.  



  Der Farbstoff färbt tierische und künst  liche Fasern von der Art der Nylonfaser in    lebhaften     reinblauen    Tönen von guten     Nass-          echtheiten    und mit sehr gleichmässigem Auf  ziehvermögen sowohl im neutralen als auch  im     essig-    und     schwefelsauren    Bade.



      Additional patent to main patent no. 255968. <B> Process </B> for <B> production </B> of a </B> lively acidic dye <B> of the </B> anthraquinone series. The present patent relates to a process for the preparation of a new acidic dye of the anthraquinone series and is characterized in that 1-amino-4-bromanhtrachinone-2-sulfonic acid is condensed with 1-amino-2,4,6-trimethylcyclohexane.



  <I> Example: </I> 8.1 parts of 1-amino-4-bromoanthraquinone-2-sulfonic acid sodium, 40 parts of 1-amino-2,4,6-trimethylcyclohexane, 4 parts of 30% sodium hydroxide solution, 0.1 part Copper powder, 0.1 part of copper chloride and 120 parts of water are heated to 60 to <B> 800 </B> with stirring and introduction of a moderate stream of nitrogen until the mass has turned blue. The condensation product is worked on in the usual way. The dye is a blue powder that dissolves with a blue color fairly easily in cold water. Its solution color in concentrated sulfuric acid is light yellow.

    When paraformaldehyde is added to the sulfuric acid solution, the color changes to a clear greenish blue.



  The dye dyes animal and artificial fibers like nylon fibers in lively, pure blue tones with good wet fastness properties and very even absorption in neutral baths as well as in acetic and sulfuric acid baths.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen sauren Farbstoffes der Anthrachinonreihe, dadurch gekennzeichnet, dass man 1-Amino-4- bromanthrachinon-2-sulfonsäure mit 1-Amino- 2,4,6-trimethyleyclohexan kondensiert. Der Farbstoff ist ein blaues Pulver, das sich in kaltem Wasser ziemlich leicht mit blauer Farbe löst. Seine Lösungsfarbe in kon zentrierter Schwefelsäure ist hellgelb. Beim Zusatz von Paraformaldehyd zur schwefelsau ren Lösung tritt ein Farbumschlag nach klar grünstiehig Blau ein. PATENT CLAIM: Process for the preparation of a new acidic dye of the anthraquinone series, characterized in that 1-amino-4-bromoanthraquinone-2-sulfonic acid is condensed with 1-amino-2,4,6-trimethyleyclohexane. The dye is a blue powder that dissolves with a blue color fairly easily in cold water. Its solution color in concentrated sulfuric acid is light yellow. When paraformaldehyde is added to the sulfuric acid solution, the color changes to a clear greenish blue. Der neue Farbstoff färbt tierische und künstliche Fasern von der Art der Nylon- faser in lebhaften reinblauen Tönen von guten Nassechtheiten und mit sehr gleich mässigem Aufziehvermögen sowohl im neu tralen als auch im essig- und schwefelsauren Bade. The new dye dyes animal and artificial fibers like nylon fibers in lively, pure blue tones with good wet fastness properties and very even absorption properties in neutral baths as well as in acetic and sulfuric acid baths.
CH261860D 1946-07-05 1946-07-05 Process for the preparation of a vivid acid dye of the anthraquinone series. CH261860A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH261860T 1946-07-05
CH255968T 1946-09-13

Publications (1)

Publication Number Publication Date
CH261860A true CH261860A (en) 1949-05-31

Family

ID=25729944

Family Applications (1)

Application Number Title Priority Date Filing Date
CH261860D CH261860A (en) 1946-07-05 1946-07-05 Process for the preparation of a vivid acid dye of the anthraquinone series.

Country Status (1)

Country Link
CH (1) CH261860A (en)

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