CH261859A - 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
CH261859A
CH261859A CH261859DA CH261859A CH 261859 A CH261859 A CH 261859A CH 261859D A CH261859D A CH 261859DA CH 261859 A CH261859 A CH 261859A
Authority
CH
Switzerland
Prior art keywords
dye
blue
preparation
vivid
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 CH261859A publication Critical patent/CH261859A/en

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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
    • C09B1/00—Dyes with anthracene nucleus not condensed with any other ring
    • C09B1/16—Amino-anthraquinones
    • C09B1/20—Preparation from starting materials already containing the anthracene nucleus
    • C09B1/26—Dyes with amino groups substituted by hydrocarbon radicals
    • C09B1/28—Dyes with amino groups substituted by hydrocarbon radicals substituted by alkyl, aralkyl or cyclo alkyl groups
    • C09B1/30—Dyes with amino groups substituted by hydrocarbon radicals substituted by alkyl, aralkyl or cyclo alkyl groups sulfonated
    • C09B1/303—Dyes 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.    Verfahren zur Herstellung eines lebhaften sauren Farbstoffes der     Anthraehinonreihe.       Das vorliegende Patent betrifft ein     Ver-          fahreii    zur Herstellung eines neuen sauren  Farbstoffes der     Anthrachinonreihe    und ist  dadurch gekennzeichnet, dass man     1-Amino-4-          chloranthrachinon-2-sulfonsäure    mit     1-Amino-          2,5-diäthylcyclohexan    kondensiert.  



  <I>Beispiel:</I>  8,0 Teile     1-amino-4-chloranthrachinon-2-          sulfonsaures    Natrium, 15 Teile     1-Amino-2,5-          diäthylcyclohexan,    4 Teile Natronlauge     30%,     0,2 Teile     Kupferpufver    und 120 Teile Was  ser werden unter Rühren während 16 Stun  den auf<B>650</B> erhitzt. Die Masse wird allmäh  lich blau. Nach beendigter Reaktion wird das  Kondensationsprodukt auf übliche     Weise,    auf  gearbeitet, wobei ein blaues Kristallpulver er  halten wird. Dieses löst sich in kaltem Wasser  ziemlich leicht mit lebhafter blauer Farbe;  dagegen löst sich der reine Farbstoff in kon  zentrierter Schwefelsäure fast farblos.

   Beim  Zusatz von wenig     Paraformaldehyd    zur schwe  felsauren Lösung entsteht ein klares,     grün-          stichiges    Blau.  



  Der neue Farbstoff färbt tierische Fasern,  wie Wolle, Seide usw., sowie künstliche Fa  sern, z. B. Nylon, in lebhaften     reinblauen     Tönen von guten     Nassechtheiten    und weist  ein gleichmässiges     Aufziehvermögen    sowohl im    neutralen als auch im     essig-    und schwefel  sauren Bade auf.  



  Man kann die Kondensation auch unter  Einleiten eines mässigen Stickstoffstromes  vornehmen. Die Mengen an Base, Alkali und  Wasser können in weiten Grenzen variiert  werden.



      Additional patent to main patent No. 255968. Process for the production of a lively acidic dye of the anthraehinone 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-chloroanthraquinone-2-sulfonic acid is condensed with 1-amino-2,5-diethylcyclohexane.



  <I> Example: </I> 8.0 parts of 1-amino-4-chloroanthraquinone-2-sulfonic acid sodium, 15 parts of 1-amino-2,5-diethylcyclohexane, 4 parts of 30% sodium hydroxide solution, 0.2 parts of copper powder and 120 parts of water are heated to <B> 650 </B> for 16 hours while stirring. The mass will gradually turn blue. After the reaction has ended, the condensation product is worked up in the usual way, a blue crystal powder he will keep. This dissolves in cold water fairly easily with a vivid blue color; in contrast, the pure dye dissolves in concentrated sulfuric acid almost colorless.

   When a little paraformaldehyde is added to the sulfuric acid solution, a clear, greenish blue is produced.



  The new dye dyes animal fibers such as wool, silk, etc., as well as artificial fibers such. B. nylon, in lively, pure blue tones with good wet fastness properties and has an even absorption capacity in neutral as well as in acetic and sulfuric baths.



  The condensation can also be carried out with the introduction of a moderate stream of nitrogen. The amounts of base, alkali and water can be varied within wide limits.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen sauren Farbstoffes der Anthrachinonreihe, dadurch gekennzeichnet, dass man 1-Amino-4- chloranthrachinon-2-sulfonsäure mit 1-Amino- 2,5-diäthylcy clohexan kondensiert. Der neue Farbstoff stellt ein blaues Kri stallpulver dar, das sich in kaltem Wasser ziemlich leicht mit lebhafter blauer Farbe löst; dagegen löst sich der reine Farbstoff in konzentrierter Schwefelsäure fast farblos. Beim Zusatz von wenig Paraformaldehyd zur schwefelsauren Lösung entsteht ein klares, grünstichiges Blau. PATENT CLAIM: Process for the preparation of a new acidic dye of the anthraquinone series, characterized in that 1-amino-4-chloroanthraquinone-2-sulfonic acid is condensed with 1-amino-2,5-diethylcyclohexane. The new dye is a blue crystal powder that dissolves fairly easily in cold water with a vivid blue color; on the other hand, the pure dye dissolves almost colorlessly in concentrated sulfuric acid. When adding a little paraformaldehyde to the sulfuric acid solution, a clear, greenish blue is produced. Der neue Farbstoff färbt tierische Fasern, wie Wolle, Seide usw., sowie künstliche Fa sern, z. B. Nylon, in lebhaften reinblauen Tö nen von guten Nassechtheiten und weist ein gleichmässiges Aufziehvermögen sowohl im neutralen als auch im essig- und schwefel sauren Bade auf. The new dye dyes animal fibers such as wool, silk, etc., as well as artificial fibers such. B. nylon, in lively pure blue tones of good wet fastness properties and has a uniform absorption capacity in both neutral and acidic baths in vinegar and sulfur.
CH261859D 1946-07-05 1946-07-05 Process for the preparation of a vivid acid dye of the anthraquinone series. CH261859A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH261859T 1946-07-05
CH255968T 1946-09-13

Publications (1)

Publication Number Publication Date
CH261859A true CH261859A (en) 1949-05-31

Family

ID=25729943

Family Applications (1)

Application Number Title Priority Date Filing Date
CH261859D CH261859A (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) CH261859A (en)

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