CH269049A - Process for the preparation of a vivid acidic dye of the anthraquinone series. - Google Patents

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

Info

Publication number
CH269049A
CH269049A CH269049DA CH269049A CH 269049 A CH269049 A CH 269049A CH 269049D A CH269049D A CH 269049DA CH 269049 A CH269049 A CH 269049A
Authority
CH
Switzerland
Prior art keywords
blue
preparation
dye
vivid
anthraquinone
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 CH269049A publication Critical patent/CH269049A/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

Landscapes

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

Description

  

  Zusatzpatent     zum    Hauptpatent, Nr. 255968.    Verfahren zur Darstellung eines lebhaften sauren Farbstoffes der     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-          brom-ant.hrachinon-2-sulfonsäure    mit     2,Amino-          dekahydronaphthalin        kondensiert.       <I>Beispiel:

  </I>  8,1 Teile     1-amino-4-brom-anthrachinon-2-          sulfonsaures    Natrium, 12 Teile     2-Amino-deka-          hydronaphthalin,    4     Teile        Natronlauge        33        %,     0,2 Teile Kupferpulver, 30 Teile Alkohol und  120 Teile Wasser werden unter Rühren so  lange auf<B>650</B> erhitzt, bis die Masse     reinblau     geworden ist.  



  Nach beendigter Reaktion wird das Kon  densationsprodukt auf übliche Weise aufge  arbeitet, wobei ein blaues Kristallpulver er  halten wird. Dieses löst; sich     in,    warmem Was  ser mit lebhafter blauer Farbe. Die Lösungs  farbe in konzentrierter Schwefelsäure ist  schwach gelblich; beim Zusatz von wenig       p-Formaldehyd    zur schwefelsauren Lösung  erfolgt ein     Umschlag    nach     grünstichig    blau.  



  Der Farbstoff färbt tierische Fasern, wie  Wolle, Seide usw., sowie künstliche Fasern,  z. B. Nylon, in lebhaften     reinblauen    Tönen  von guter     Walkechtheit    und weist ein gutes       Aufziehvermögen    bereits im neutralen oder  essigsauren Bade auf.



  Additional patent to the main patent, No. 255968. Process for the preparation of a lively acidic dye of the 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-bromo-anthraquinone-2-sulfonic acid is condensed with 2, aminodecahydronaphthalene. <I> example:

  </I> 8.1 parts of 1-amino-4-bromo-anthraquinone-2-sulfonic acid sodium, 12 parts of 2-amino-decahydronaphthalene, 4 parts of 33% sodium hydroxide solution, 0.2 parts of copper powder, 30 parts of alcohol and 120 Parts of water are heated to <B> 650 </B> while stirring until the mixture has turned pure blue.



  After the reaction has ended, the condensation product is worked up in the usual way, a blue crystal powder he will keep. This solves; in warm water with a vivid blue color. The solution color in concentrated sulfuric acid is pale yellowish; if a little p-formaldehyde is added to the sulfuric acid solution, it changes to a greenish blue.



  The dye dyes animal fibers such as wool, silk, etc., as well as artificial fibers, e.g. B. nylon, in lively pure blue tones of good millfastness and has a good absorption capacity even in neutral or acetic acid bath.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen sauren Farbstoffes der Anthrachinonreihe, da durch gekennzeichnet, dass man 1-Amino-4- brom-anthrachinon-2-sulfonsäure mit 2-Anmino- dekahydronaphthalin kondensiert;. Der neue Farbstoff stellt ein blaues Kri stallpulver dar, das sich in warmem Wasser mit lebhafter blauer Farbe löst. PATENT CLAIM: Process for the preparation of a new acidic dye of the anthraquinone series, characterized in that 1-amino-4-bromo-anthraquinone-2-sulfonic acid is condensed with 2-aminodecahydronaphthalene. The new dye is a blue crystal powder that dissolves in warm water with a vivid blue color. Die Lösungs farbe in konzentrierter Schwefelsäure ist schwach gelblich; beim Zusatz von wenig p- Formaldehyd zur schwefelsauren Lösung er folgt ein Umschlag nach grünstiehig blau. Der Farbstoff färbt tierische Fasern, wie Wolle, Seide usw., sowie künstliche Fasern, z. B. Nylon, in lebhaften reinblauen Tönen von guter Walkechtheit und weist ein gutes Aufziehvermögen bereits im neutralen oder essigsauren Bade auf. Fr besitzt die Formel EMI0001.0040 The solution color in concentrated sulfuric acid is pale yellowish; when a little p-formaldehyde is added to the sulfuric acid solution, it changes to a greenish blue. The dye dyes animal fibers such as wool, silk, etc., as well as artificial fibers, e.g. B. nylon, in lively pure blue tones of good millfastness and has a good absorption capacity even in neutral or acetic acid bath. Fr has the formula EMI0001.0040
CH269049D 1946-09-13 1946-09-13 Process for the preparation of a vivid acidic dye of the anthraquinone series. CH269049A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH255968T 1946-09-13
CH269049T 1946-09-13

Publications (1)

Publication Number Publication Date
CH269049A true CH269049A (en) 1950-06-15

Family

ID=25729947

Family Applications (1)

Application Number Title Priority Date Filing Date
CH269049D CH269049A (en) 1946-09-13 1946-09-13 Process for the preparation of a vivid acidic dye of the anthraquinone series.

Country Status (1)

Country Link
CH (1) CH269049A (en)

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