CH300802A - Process for the production of a sulfur dye. - Google Patents

Process for the production of a sulfur dye.

Info

Publication number
CH300802A
CH300802A CH300802DA CH300802A CH 300802 A CH300802 A CH 300802A CH 300802D A CH300802D A CH 300802DA CH 300802 A CH300802 A CH 300802A
Authority
CH
Switzerland
Prior art keywords
sulfur
production
sulfur dye
act
allowed
Prior art date
Application number
Other languages
German (de)
Inventor
Ag J R Geigy
Original Assignee
Ag J R Geigy
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 J R Geigy filed Critical Ag J R Geigy
Publication of CH300802A publication Critical patent/CH300802A/en

Links

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
    • C09B49/00—Sulfur dyes
    • C09B49/10—Sulfur dyes from diphenylamines, indamines, or indophenols, e.g. p-aminophenols or leucoindophenols

Description

  

  <B>Zusatzpatent</B>     zum    Hauptpatent Nr. 294339.    Verfahren zur     Herstellung        eines        Schwefelfarbstoffes.       Gegenstand vorliegenden Patentes ist ein  Verfahren zur Herstellung eines Schwefel  farbstoffes. Das     Verfahren    ist dadurch ge  kennzeichnet, dass man auf     4-(p-Oxy-phenyl-          amino)    - 3' -     methyT    - N -     methyl    -     diphenylamin     Schwefel einführende Mittel einwirken lässt.  



  Als Schwefel einführende Mittel werden  vorteilhaft     Alkalipolysulfide    verwendet, die  man in Gegenwart eines     Glykolmonoalkyl-          äthers    bei     1.00-125     einwirken lässt.  



  Der erhaltene neue Schwefelfarbstoff färbt       Cellulosefasern    aus     schwefelnatriumhalt'igem     Bade in     grünstiehig    blauer, reiner Nuance.  



  <I>Beispiel:</I>  In eine     Polysulfidlösung,    hergestellt durch       Verschmelzen    von 156 Teilen Schwefel und  107 Teilen     60o/oigem        techn.        Schwefelnatrilun     mit 400 Teilen     Äthylenglykolmonomethyläther,     werden 94 Teile eines trockenen     Leiikoindo-          phenols    von folgender     Konstitution    einge  tragen:  
EMI0001.0027     
    Die so erhaltene     Schwefelungsschmelze    wird bei  110  48     Stunden    unter     Rückfluss    gekocht.

    Nach Entfernung des Lösungsmittels durch       Wasserdampfdestillation    kann der Farbstoff  durch Lüftung gefällt werden. Man erhält  einen Farbstoff, der     Cehulosefasern    aus     schese-          felnatriumhaltigem    Bade in stark     grünstichig-          blauer,    reiner Nuance färbt und wertvolle  Echtheitseigenschaften,     insbesondere    eine gute  Chlorechtheit     aufweist.  



  <B> Additional patent </B> to main patent no. 294339. Process for the production of a sulfur dye. The present patent is a process for the preparation of a sulfur dye. The method is characterized in that 4- (p-oxy-phenyl-amino) -3'-methyT-N-methyl-diphenylamine sulfur-introducing agents are allowed to act.



  The sulfur-introducing agents used are advantageously alkali polysulphides which are allowed to act in the presence of a glycol monoalkyl ether at 1.00-125.



  The new sulfur dye obtained dyes cellulose fibers from baths containing sulfur sodium in a greenish blue, pure shade.



  <I> Example: </I> In a polysulphide solution, prepared by fusing 156 parts of sulfur and 107 parts of 60% techn. Sulphurous sodium with 400 parts of ethylene glycol monomethyl ether, 94 parts of a dry leiikoindophenol of the following constitution are entered:
EMI0001.0027
    The sulfurizing melt obtained in this way is refluxed at 110 for 48 hours.

    After the solvent has been removed by steam distillation, the dye can be precipitated by ventilation. A dyestuff is obtained which dyes cehulose fibers from a bath containing sulfuric acid in a strong greenish-blue, pure shade and has valuable fastness properties, in particular good fastness to chlorine.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Schwefel farbstoffes, dadurch gekennzeichnet, dass man auf 4- (p - Oxy- phenylamino) - 3'- methyl-N-me- thyl-diphenylamin Schwefel einführende Mit tel einwirken lässt. Der erhaltene neue Schwefelfarbstoff färbt Cellulosefasern aus schwefelnatriumhaltigem Bade in grünstickig blauer, reiner Nuance. PATENT CLAIM: Process for the production of a sulfur dye, characterized in that sulfur-introducing agents are allowed to act on 4- (p-oxyphenylamino) -3'-methyl-N-methyl-diphenylamine. The new sulfur dye obtained dyes cellulose fibers from a bath containing sulfur sodium in a greenish blue, pure shade. UNTERANSPRUCH: Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man Alkalipolysulfide in Gegenwart eines Glykolmonoalkyläthers bei Temperaturen von 100-125 einwirken lässt. SUBSTANTIAL CLAIM: Process according to patent claim, characterized in that alkali polysulphides are allowed to act in the presence of a glycol monoalkyl ether at temperatures of 100-125.
CH300802D 1951-03-22 1951-03-22 Process for the production of a sulfur dye. CH300802A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH294339T 1951-03-22
CH300802T 1951-03-22

Publications (1)

Publication Number Publication Date
CH300802A true CH300802A (en) 1954-08-15

Family

ID=25733467

Family Applications (1)

Application Number Title Priority Date Filing Date
CH300802D CH300802A (en) 1951-03-22 1951-03-22 Process for the production of a sulfur dye.

Country Status (1)

Country Link
CH (1) CH300802A (en)

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