CH122274A - 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
CH122274A
CH122274A CH122274DA CH122274A CH 122274 A CH122274 A CH 122274A CH 122274D A CH122274D A CH 122274DA CH 122274 A CH122274 A CH 122274A
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 CH122274A publication Critical patent/CH122274A/en

Links

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  122271     beschriebenen        Chinonküpenfarbstoffe,     
EMI0001.0003     
    oder ihrer     Aquivalente    mit     Arylchinonen    und  ihren Derivaten, insbesondere ihren Halogen  substitutionsprodukten, erhält, und welche  wahrscheinlich folgende Zusammensetzung  haben:

    
EMI0001.0006     
         (R1   <B>=q</B>     Aryl,          Pl,    = H oder     Alkyl    oder     Aralkyl,     X = H oder einwertiger     Substituent,        o     Y = H oder einwertiger     Substituent,    ins  besondere Halogen [Cl]),    durch nachträgliche Behandlung mit     Schwe-          felungsmitteln,    zum Beispiel durch Erhitzen    die     man    durch Kondensation der     Arylamino-          derivate    von     o-Aminoarylmerkaptanen    der  allgemeinen Formel:

           (R1    =     Aryl     R = H oder     Alkyl    oder     Aralkyl)       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-Phenylamino-ä-metllogy-2.1-aminothio-          phenol    und     Chloranil    von der wahrschein  lichen Formel-  
EMI0001.0032     
    mit     Schwefelungsmitteln.         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 blauen Tönen von hervorragender  \Wasch- und Lichtechtheit.  



  <I>Beispiel.:</I>  40 kg des nach dem Beispiel des  Schweizer Patentes Nr. 122271 erhältlichen  Farbstoffes aus     5-Phenylamino-3-methoxy-          2.1-aminothiophenol    und     Chloranil    werden  in eine     @    Lösung von etwa 250 kg Sprit,  etwa 40 kg wasserfreiem Schwefelnatrium       ,ind    etwa. 20 kg Schwefel eingetragen, und  das Ganze wird in einem mit     Rückflusskühler     und Rührwerk versehenen Gefäss etwa 20  bis 40 Stunden erhitzt. Der Sprit wird ab  destilliert, der Rückstand mit Salzlösung    verdünnt und der abgeschiedene     Parbsto    f 1  filtriert,     gewaschen    und getrocknet.



  Process for the preparation of a true blue sulfur dye. It has been found that the quinone vat dyes described in Swiss patents 122072, 122270 and 122271,
EMI0001.0003
    or their equivalents with arylquinones and their derivatives, especially their halogen substitution products, and which probably have the following composition:

    
EMI0001.0006
         (R1 <B> = q </B> aryl, P1, = H or alkyl or aralkyl, X = H or monovalent substituent, o Y = H or monovalent substituent, in particular halogen [Cl]), by subsequent treatment with sulfur - control agents, for example by heating, which are obtained by condensation of the arylamino derivatives of o-aminoaryl mercaptans of the general formula:

           (R1 = aryl R = H or alkyl or aralkyl) with alkali metal sulfhydrates, alkali metal 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 real blue sulfur dye by treating the condensation product (quinone vat dye) from 5-phenylamino-a-metallogy-2.1-aminothiophenol and chloranil of the probable formula
EMI0001.0032
    with sulphurizing agents. When dry, the dye so obtainable is a blue powder, which is soluble in sulfuric acid with a blue color,

   and dyes cotton in a sulphurous sodium bath or in the pool in blue shades of excellent washing and lightfastness.



  <I> Example .: </I> 40 kg of the dye obtainable according to the example of Swiss Patent No. 122271 from 5-phenylamino-3-methoxy-2.1-aminothiophenol and chloranil are in a solution of about 250 kg of fuel, about 40 kg of anhydrous sodium sulphide, ind approx. Entered 20 kg of sulfur, and the whole thing is heated in a vessel equipped with a reflux condenser and stirrer for about 20 to 40 hours. The fuel is distilled off, the residue is diluted with salt solution and the deposited Parbsto f 1 is filtered, washed and dried.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines echten blauen Schwefelfarbstoffes., dadurch gekenn zeichnet, dass man das Kondensationsprodukt aus 5-Phenylamino-3-methoxy-2.1-aminothio- plienol und Chloranil mit Schwefelungs- niitteln behandelt. 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 Küpe in blauen Tönen von hervorragender Wasch- und Lichtechtheit. PATENT CLAIM: Process for the preparation of a true blue sulfur dye., Characterized in that the condensation product of 5-phenylamino-3-methoxy-2.1-aminothioplienol and chloranil is treated with sulfurizing agents. 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 vat in blue shades of excellent washing and lightfastness.
CH122274D 1925-08-10 1925-08-10 Process for the preparation of a true blue sulfur dye. CH122274A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH122073T 1925-08-10
CH122274T 1925-08-10

Publications (1)

Publication Number Publication Date
CH122274A true CH122274A (en) 1927-09-16

Family

ID=25709857

Family Applications (1)

Application Number Title Priority Date Filing Date
CH122274D CH122274A (en) 1925-08-10 1925-08-10 Process for the preparation of a true blue sulfur dye.

Country Status (1)

Country Link
CH (1) CH122274A (en)

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