CH300805A - Process for the production of a sulfur dye. - Google Patents

Process for the production of a sulfur dye.

Info

Publication number
CH300805A
CH300805A CH300805DA CH300805A CH 300805 A CH300805 A CH 300805A CH 300805D A CH300805D A CH 300805DA CH 300805 A CH300805 A CH 300805A
Authority
CH
Switzerland
Prior art keywords
sulfur
production
sulfur dye
clear
red
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 CH300805A publication Critical patent/CH300805A/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

Landscapes

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

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',4'-     dichlor    - N -     methyl    -     diphenylamin     Schwefel einführende Mittel einwirken lässt.

      Als Schwefel einführende Mittel werden  vorteilhaft     Alkalipolysulfide        verwendet,    die  man in     Gegenwart    eines     Glykolmonoalkyl-          äthers    bei 100-125  einwirken lässt.  



  Der erhaltene neue Schwefelfarbstoff stellt  ein dunkles, rot bronzierendes Pulver dar,  das sich in     konz.        Schwefelsäure    mit klar  blauer Farbe löst und Baumwolle aus Schwe  felnatrium enthaltender Flotte in klarer,     rot-          stiehigblauer    Nuance anfärbt.

      <I>Beispiel:</I>    In eine     Polysulfidlösung,    hergestellt durch  Verschmelzen von 156 Teilen Schwefel und  107 Teilen     601/o-igem        techn.        Schwefelnatrium     mit 400 Teilen     Äthylenglykolmonomethyläther,          werden    110 Teile eines trockenen     Le-Üoindo-          phenols    von folgender Konstitution     eingetra-          @en:     
EMI0001.0026     
    Die so erhaltene     Schwefehingsschmelze    wird  bei 110  48 Stunden unter     Rückfluss    gekocht.

    Nach Entfernung des     Lösungsmittels    durch       Wasserdampfdestillation    kann der Farbstoff  durch Lüftung gefällt werden. Der getrock  nete Farbstoff stellt ein     dunkles,    rot bronzie  rendes Pulver dar, das sich in     konz.    Schwefel  säure mit klar blauer Farbe löst und Baum  wolle aus Schwefelnatrium enthaltender Flotte       in    klarer,     rotstichigblauer    Nuance anfärbt. Die  Färbungen weisen neben guten Allgemein  heiten insbesondere eine für Schwefelfarb  stoffe hervorragende Chlorechtheit auf.



  <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 process is characterized in that 4- (p-oxy-phenyl-amino) -3 ', 4'-dichloro-N-methyl-diphenylamine sulfur-introducing agents are allowed to act.

      The sulfur-introducing agents are advantageously alkali polysulphides, which are allowed to act in the presence of a glycol monoalkyl ether at 100-125.



  The new sulfur dye obtained is a dark, red bronzing powder, which is in conc. Sulfuric acid dissolves with a clear blue color and dyes cotton from liquor containing sodium sulfur in a clear, reddish-blue shade.

      <I> Example: </I> In a polysulfide solution, prepared by fusing 156 parts of sulfur and 107 parts of 601 / o-igem techn. Sodium sulfur with 400 parts of ethylene glycol monomethyl ether, 110 parts of a dry Le-Üoindophenol of the following constitution are applied:
EMI0001.0026
    The sulfur melt obtained in this way is refluxed at 110 for 48 hours.

    After removing the solvent by steam distillation, the dye can be precipitated by aeration. The getrock Nete dye is a dark, red bronzie-saving powder, which is in conc. Sulfuric acid dissolves with a clear blue color and stains cotton from liquor containing sodium sulphide in a clear, reddish blue shade. In addition to good generalities, the dyeings have, in particular, excellent chlorine fastness for sulfur dyes.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Schwefel farbstoffes, dadurch gekennzeichnet, dass man auf 4-(p-Oxy-phenylamino)-3',4'-dichlor-N- methyl-diphenylamin Schwefel einführende Mittel einwirken lässt. Der erhaltene neue Schwefelfarbstoff stellt ein dunkles, rot bronzierendes Pulver dar, das sich in konz. Schwefelsäure mit klar blauer Farbe löst und Baumwolle aus Schwefel natrium enthaltender Flotte in klarer, rot stichigblauer Nuance anfärbt. UNTERANSPRUCH: Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man Allialipolysulfide in Gegenwart eines Glyliölmonoalliyläthers bei Temperaturen von 100-125 einwirken lässt. Claim: Process for the production of a sulfur dye, characterized in that sulfur-introducing agents are allowed to act on 4- (p-oxy-phenylamino) -3 ', 4'-dichloro-N-methyl-diphenylamine. The new sulfur dye obtained is a dark, red bronzing powder, which is in conc. Sulfuric acid dissolves with a clear blue color and dyes cotton from liquor containing sodium sulfur in a clear, red, pale blue shade. SUBSTANTIAL CLAIM: Process according to patent claim, characterized in that allialipolysulphides are allowed to act in the presence of a Glyliölmonoalliyläthers at temperatures of 100-125.
CH300805D 1951-03-22 1951-03-22 Process for the production of a sulfur dye. CH300805A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH300805T 1951-03-22
CH294339T 1951-03-22

Publications (1)

Publication Number Publication Date
CH300805A true CH300805A (en) 1954-08-15

Family

ID=25733470

Family Applications (1)

Application Number Title Priority Date Filing Date
CH300805D CH300805A (en) 1951-03-22 1951-03-22 Process for the production of a sulfur dye.

Country Status (1)

Country Link
CH (1) CH300805A (en)

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