CH122273A - Process for the preparation of a true blue sulfur dye. - Google Patents

Process for the preparation of a true blue sulfur dye.

Info

Publication number
CH122273A
CH122273A CH122273DA CH122273A CH 122273 A CH122273 A CH 122273A CH 122273D A CH122273D A CH 122273DA CH 122273 A CH122273 A CH 122273A
Authority
CH
Switzerland
Prior art keywords
preparation
blue
sulfur dye
true blue
dye
Prior art date
Application number
Other languages
German (de)
Inventor
Leopold Cassella Co Ge Haftung
Original Assignee
Cassella Leopold & Co Gmbh
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 Cassella Leopold & Co Gmbh filed Critical Cassella Leopold & Co Gmbh
Publication of CH122273A publication Critical patent/CH122273A/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
    • C09B21/00Thiazine dyes

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

Description

  

  Verfahren zur Darstellung eines echten     blauen        Schwefelfarbstoffes.       Es wurde gefunden, dass die in den  Schweizer     Patenten.    Nr. 122072, 122270 und  <B>122271</B> beschriebenen     Chinonküpenfarbstoffe,       die man durch Kondensation der     Arylamino-          derivate    von     o-Aminoarylmerkaptanen    der  allgemeinen Formel:  
EMI0001.0008     
    oder ihrer     Aquivalente    mit     Arylchinonen    und  ihren Derivaten, insbesondere ihren Halogen  substitutionsprodukten, erhält, und welche  wahrscheinlich folgende Zusammensetzung  haben:

    
EMI0001.0011     
         (R,,    =     Aryl,     R = H oder     Alkyl    oder     Aralkyl,     X = H oder einwertiger     Substituent,     Y = H oder einwertiger     Substituent,    ins  besondere Halogen     [Cl]),     durch nachträgliche Behandlung mit     Schwe-          felungsmitteln,    zum Beispiel durch Erhitzen  mit     Alkalisulfhydraten,        Alkalisulfiden    oder    Polysulfiden, in sehr wertvolle blaue Schwe  felfarbstoffe übergehen. Dieselben zeichnen  sich durch hervorragende Wasch- und Licht  echtheit aus.  



  Vorliegendes Patent bezieht sich nun auf  die Darstellung eines echten blauen Schwe  felfarbstoffes durch Behandeln des Konden  sationsproduktes     (Chinonküpenfarbstoffes)     aus     5-m-Tolylamino-3-methyl-2.1-aminothio-          phenol    und     Chloranil    von der wahrschein  lichen Formel:  
EMI0001.0027     
      Trocken ist der so erhältliche Farbstoff  ein blaues Pulver, das in Schwefelsäure mit  blauer Farbe löslich ist, und färbt Baum  wolle im     Schwefelnatriumbade    oder in der       Nüpe    in     g¯rünaichig    blauen Tönen von her  vorragender     Wasch-    und     Liebtechtheit.     



       Beispiel     40 kg des nach dem Beispiel des       Schweizer    Patentes Nr. 122270 erhältlichen  Farbstoffes aus 5     -m-Tolylamino-0'-methyl-          2.1-aminothiophenol    und     Chloranil    werden  in eine Lösung von etwa 250 kg Sprit,  etwa. 40 kg wasserfreiem Schwefelnatrium  und etwa. 20 kg Schwefel eingetragen, und  das     Cranze    wird in einem mit     Rückflusskühler     und Rührwerk versehenen Gefäss etwa 20       his        .10    Stunden erhitzt.

   Der Sprit wird ab  destilliert, der Rückstand mit     Salzlösun7       verdünnt und der abgeschiedene Farbstoff       filtriert,        gewaschen    und getrocknet.



  Process for the preparation of a true blue sulfur dye. It was found that those in the Swiss patents. No. 122072, 122270 and <B> 122271 </B> described quinone vat dyes, which are obtained by condensation of the arylamino derivatives of o-aminoaryl mercaptans of the general formula:
EMI0001.0008
    or their equivalents with arylquinones and their derivatives, especially their halogen substitution products, and which probably have the following composition:

    
EMI0001.0011
         (R ,, = aryl, R = H or alkyl or aralkyl, X = H or monovalent substituent, Y = H or monovalent substituent, in particular halogen [Cl]), by subsequent treatment with sulphurizing agents, for example by heating with Alkali sulfhydrates, alkali sulfides or polysulfides, turn into very valuable blue sulfur dyes. They are characterized by excellent wash and light fastness.



  The present patent now relates to the preparation of a true blue sulfur dye by treating the condensation product (quinone vat dye) from 5-m-tolylamino-3-methyl-2.1-aminothiophenol and chloranil with the probable formula:
EMI0001.0027
      When dry, the dyestuff obtainable in this way is a blue powder that is soluble in sulfuric acid with a blue color, and dyes cotton in a sulphurous sodium bath or in the nub in greenish-blue shades that are extremely fast to wash and love.



       Example 40 kg of the dye obtainable according to the example of Swiss Patent No. 122270 from 5 -m-tolylamino-0'-methyl-2.1-aminothiophenol and chloranil are in a solution of about 250 kg of fuel, about. 40 kg of anhydrous sodium sulphide and about. 20 kg of sulfur are introduced, and the crown is heated in a vessel equipped with a reflux condenser and stirrer for about 20 to 10 hours.

   The fuel is distilled off, the residue is diluted with saline solution and the deposited dye is filtered, washed and dried.

 

Claims (1)

PATENTANSPRUCH Verfahren zur Darstellung eines echten blauen Schwefelfarbstoffes, dadurch gekenn zeichnet, dass man das Kondensationsprodukt aus S-m-Tolylamino-#-methyl-2.l-aminothio- phenol und Chloranil mit Schwefelungs- mitteln behandelt. PATENT CLAIM Process for the preparation of a true blue sulfur dye, characterized in that the condensation product of S-m-tolylamino - # - methyl-2.l-aminothiophene and chloranil is treated with sulphurizing agents. Trocken ist der so erhältliche Farbstoff ein blaues Pulver, das in Schwefelsäure mit blauer Farbe löslich ist, und färbt Baum wolle im Schwefelnatriumbade oder in der Iiüpe in griinstichig blauen Tönen von her vor-ragender Wasch- und Lichtechtheit. When dry, the dyestuff obtainable in this way is a blue powder which is soluble in sulfuric acid with a blue color, and it dyes cotton in a sulphurous sodium bath or in the ivy in greenish blue shades of excellent washing and lightfastness.
CH122273D 1925-08-10 1925-08-10 Process for the preparation of a true blue sulfur dye. CH122273A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH122273T 1925-08-10
CH122073T 1925-08-10

Publications (1)

Publication Number Publication Date
CH122273A true CH122273A (en) 1927-09-16

Family

ID=25709856

Family Applications (1)

Application Number Title Priority Date Filing Date
CH122273D CH122273A (en) 1925-08-10 1925-08-10 Process for the preparation of a true blue sulfur dye.

Country Status (1)

Country Link
CH (1) CH122273A (en)

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