CH166790A - Process for the preparation of a new dye of the anthraquinone series. - Google Patents

Process for the preparation of a new dye of the anthraquinone series.

Info

Publication number
CH166790A
CH166790A CH166790DA CH166790A CH 166790 A CH166790 A CH 166790A CH 166790D A CH166790D A CH 166790DA CH 166790 A CH166790 A CH 166790A
Authority
CH
Switzerland
Prior art keywords
gray
acid
preparation
new dye
anthraquinone series
Prior art date
Application number
Other languages
German (de)
Inventor
Sandoz Chemische Fabri Vormals
Original Assignee
Chem Fab Vormals 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 Chem Fab Vormals Sandoz filed Critical Chem Fab Vormals Sandoz
Publication of CH166790A publication Critical patent/CH166790A/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
    • C09B1/32—Dyes with amino groups substituted by hydrocarbon radicals substituted by aryl groups
    • C09B1/34—Dyes with amino groups substituted by hydrocarbon radicals substituted by aryl groups sulfonated
    • C09B1/343—Dyes with amino groups substituted by hydrocarbon radicals substituted by aryl groups sulfonated only sulfonated in the anthracene nucleus

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)

Description

  

  Verfahren zur Darstellung eines neuen Farbstoffes der     Anthrachinonreihe.       Es wurde gefunden, dass man in vorzüg  licher Ausbeute neue     Anthrachinonderivate     von hohem technischem Wert erhält, wenn  man     Aminoarylaminoanthrachinone,    sowie  deren     Substitutions-    und     Umwandlungspro-          dukte,        bezw.    deren     Sulfonsäuren    mit Salpe  tersäure behandelt. Die so erhaltenen Pro  dukte liefern, soweit sie als     Sulfosäuren     vorliegen, auf tierischen Fasern Färbungen,  die sich durch wertvolle Nuancen und ausge  zeichnete Echtheitseigenschaften auszeichnen.  



  Zur Ausführung des vorliegenden Verfah  rens verfährt man am besten so, dass man  die     Aminoarylaminoanthrachinone    in Schwe  felsäure geeigneter Konzentration löst oder  suspendiert und der erhaltenen Lösung oder  Suspension Salpetersäure oder ein Gemisch  aus Salpetersäure und Schwefelsäure oder ein  Nitrat zusetzt.  



  Das vorliegende Patent     betrifft    ein Ver  fahren zur Darstellung eines neuen Farb  stoffes der     Anthrachinonreihe,    nach welchem  man     1-Acnino-4-p-toluidoanthrachinon-2-sul-          fosäure    mit Salpetersäure behandelt.

      <I>Beispiel:</I>    8,6 Teile     1-Amino-4-p-toluidoanthrachi-          non-2-sulfosaures    Natrium werden in der  4fachen Menge Monohydrat     (resp.        conc.          112S04)    gelöst und bei - 5 bis     -E-5    0 lang  sam mit 2,

  6 Teilen Salpeterschwefelsäure       von        50%        versetzt.        Dann        hält        man        noch     einige Zeit auf 0 0 und lässt dann bei Zim  mertemperatur     weiterrühren    (zur raschen Be  endigung kann die Temperatur auch unbe  denklich auf 50-60 0 gesteigert werden). Zur  Isolierung des Farbstoffes wird die Schmelze  auf Eis gegossen.  



  Der so erhaltene Farbstoff ist ein grau  schwarzer Körper, der sich in Wasser mit  grauvioletter, in Schwefelsäure mit braun  gelber Farbe löst. Er färbt Wolle aus saurem  Bade in schönen, grauen Tönen an. Chargierte  und     unchargierte    Seide wird sowohl aus  saurem wie neutralem Bade grau angefärbt.  Ebenso wird Leder in wertvollen grauen  Tönen angefärbt.



  Process for the preparation of a new dye of the anthraquinone series. It has been found that new anthraquinone derivatives of high technical value are obtained in excellent yield if aminoarylaminoanthraquinones, and their substitution and conversion products, respectively. their sulfonic acids treated with nitric acid. The products thus obtained, in so far as they are present as sulfonic acids, provide dyeings on animal fibers that are distinguished by valuable nuances and excellent fastness properties.



  The best way to carry out the present method is to dissolve or suspend the aminoarylaminoanthraquinones in sulfuric acid of suitable concentration and add nitric acid or a mixture of nitric acid and sulfuric acid or a nitrate to the resulting solution or suspension.



  The present patent relates to a process for the preparation of a new dye of the anthraquinone series, according to which 1-acnino-4-p-toluidoanthraquinone-2-sulphonic acid is treated with nitric acid.

      <I> Example: </I> 8.6 parts of 1-amino-4-p-toluidoanthraquinone-2-sulfonic acid sodium are dissolved in 4 times the amount of monohydrate (or conc. 112S04) and at -5 to -E -5 0 slow sam with 2,

  6 parts of 50% nitric sulfuric acid are added. Then hold at 0 0 for some time and then continue stirring at room temperature (to finish quickly, the temperature can be safely increased to 50-60 0). To isolate the dye, the melt is poured onto ice.



  The dye obtained in this way is a gray-black body that dissolves in water with a gray-violet color and in sulfuric acid with a brown-yellow color. He dyes wool from an acid bath in beautiful gray tones. Charged and uncharged silk is dyed gray from both acid and neutral baths. Leather is also dyed in valuable gray tones.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines neuen Farbstoffes der Antbrachinonreihe, dadurch gekennzeichnet, dass man 1-Amino-4-p-tolui- doanthrachinon-2-sulfosäure mit Salpeter säure behandelt. Der neue Farbstoff ist ein grauschwarzer Körper, der sieh in Wasser mit grauvioletter, in Schwefelsäure mit braungelber Farbe löst. Er färbt Wolle aus saurem Bade in schönen, grauen Tönen an. Chargierte und unchar- gierte Seide wird sowohl aus saurem wie neutralem Bade grau angefärbt. ebenso wird Leder in wertvollen, grauen Tönen angefärbt. PATENT CLAIM: Process for the preparation of a new dye of the antbrachinone series, characterized in that 1-amino-4-p-toluidoanthraquinone-2-sulfonic acid is treated with nitric acid. The new dye is a gray-black body that dissolves in water with a gray-violet color, in sulfuric acid with a brown-yellow color. He dyes wool from an acid bath in beautiful gray tones. Charged and uncharged silk is dyed gray from both acid and neutral baths. leather is also dyed in valuable gray tones.
CH166790D 1932-11-04 1932-11-04 Process for the preparation of a new dye of the anthraquinone series. CH166790A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH166790T 1932-11-04

Publications (1)

Publication Number Publication Date
CH166790A true CH166790A (en) 1934-01-31

Family

ID=4419315

Family Applications (1)

Application Number Title Priority Date Filing Date
CH166790D CH166790A (en) 1932-11-04 1932-11-04 Process for the preparation of a new dye of the anthraquinone series.

Country Status (1)

Country Link
CH (1) CH166790A (en)

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