CH300804A - Process for the production of a sulfur dye. - Google Patents

Process for the production of a sulfur dye.

Info

Publication number
CH300804A
CH300804A CH300804DA CH300804A CH 300804 A CH300804 A CH 300804A CH 300804D A CH300804D A CH 300804DA CH 300804 A CH300804 A CH 300804A
Authority
CH
Switzerland
Prior art keywords
sulfur
production
clear
act
sulfur dye
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 CH300804A publication Critical patent/CH300804A/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

  

  Zusatzpatent zum Hauptpatent     Nr..294339.       Verfahren zur Herstellung eines     Schwefelfarbstoffes.            Glegenstand    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'-ehlor-N-methyl-diphenylamin    Schwe  fel einführende Mittel einwirken     lässt.     



  Als Schwefel -einführende Mittel werden       #yorteilhaft        Alkallpolysulfide    verwendet, die  man in Gegenwart eines     Glykolmonoalkyl-          Üthers    bei     100-1251>    einwirken     lässt.     



  Der erhaltene neue     Sehwefelfarbstoff    stellt  ein dunkles, rot bronzierendes Pulver dar,  das sieh in     konz.    Schwefelsäure mit klar blauer  Farbe löst und Baumwolle aus Schwefel  natrium enthaltender Flotte in klarer,     rot-          stichig    blauer Nuance anfärbt.

      <I>Beispiel:</I>    In eine     Polysulfidlösung,    hergestellt durch  Verschmelzen von-<B>156</B> Teilen     Sch-wefel    und  <B>107</B> Teilen     6011/eigem        techn.    Schwefelnatrium  mit 400 Teilen     Äthylenglykolmonomethyläther,     werden<B>100</B> Teile eines trockenen     Leukoindo-          phenols    von- folgender Konstitution     eingetra-          j"en:     
EMI0001.0027     
    Die so erhaltene     Schwefelungssehmelze    wird  bei     1101'    48 Stunden unter     Rückfluss    gekocht.

    Nach Entfernung des Lösungsmittels durch       Wasserdampfdestillation    kann der Farbstoff  durch Lüftung gefällt werden.     D#r    getrock  nete Farbstoff stellt ein dunkles, rot     bronzie-          rendes    Pulver dar, das sich in     konz.    Schwe  felsäure mit klar blauer Farbe löst und Baum  wolle ans Schwefelnatrium enthaltender Flotte  in klarer,     rotstichig    blauer Nuance     anfärbt.    Die  Färbungen weisen neben guten     Allgemein-          echtheiten    insbesondere eine für Schwefelfarb  stoffe hervorragende Chlorechtheit     auf.  



  Additional patent to the main patent No. 294339. Process for the production of a sulfur dye. The subject of 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'-chloro-N-methyl-diphenylamine sulfur-introducing agents are allowed to act.



  As sulfur-introducing agents, alkali polysulphides are used, which are allowed to act in the presence of a glycol monoalkyl ether at 100-1251>.



  The new sulfur dye obtained is a dark, red bronzing powder that looks 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, produced by fusing- <B> 156 </B> parts of Sch-wefel and <B> 107 </B> parts of 6011 / own techn. Sodium sulfur with 400 parts of ethylene glycol monomethyl ether are used to enter 100 parts of a dry leucoindophenol of the following constitution:
EMI0001.0027
    The sulfurizing salt thus obtained is refluxed at 1101 'for 48 hours.

    After removing the solvent by steam distillation, the dye can be precipitated by aeration. The dried dye is a dark, red bronzing powder that is in conc. Sulfur acid dissolves with a clear blue color and stains cotton to the liquor containing sulfur sodium in a clear, reddish blue shade. In addition to good general fastness properties, the dyeings are particularly fast to chlorine, which is excellent for sulfur dyes.

Claims (1)

<B>PATENTANSPRUCH:</B> Verfahren zur Herstellung eines Schwefel.- larbstoffes, dadurch gekennzeichnet, dass man auf 4-(p-Oxy-phen3rl-amino)-3'-chlor-N-inetliyl- 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- natriuni enthaltender Flotte in klarer, <B> PATENT CLAIM: </B> Process for the production of a sulfuric substance, characterized in that sulfur-introducing agents act on 4- (p-oxy-phen3rl-amino) -3'-chloro-N-methyldiphenylamine leaves. The new sulfur dye obtained is a dark, red bronzing powder which is in conc. Sulfuric acid with a clear blue color dissolves and cotton from liquor containing sulfur natriuni in a clear, rot- stichig blauer Nuance anfärbt. UNTERANSPRUCH- Verfahren naeli Patentanspruch, dadurch gekennzeichnet, dass man Alkalipolysulfide in Gegenwart eines Glykolmonoalkyllithers bei Temperaturen von 100-12511 einwirken lässt. stains a reddish blue shade. SUBSTITUTE SHEET method according to patent claim, characterized in that alkali polysulphides are allowed to act in the presence of a glycol monoalkyllithers at temperatures of 100-12511.
CH300804D 1951-03-22 1951-03-22 Process for the production of a sulfur dye. CH300804A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH294339T 1951-03-22
CH300804T 1951-03-22

Publications (1)

Publication Number Publication Date
CH300804A true CH300804A (en) 1954-08-15

Family

ID=25733469

Family Applications (1)

Application Number Title Priority Date Filing Date
CH300804D CH300804A (en) 1951-03-22 1951-03-22 Process for the production of a sulfur dye.

Country Status (1)

Country Link
CH (1) CH300804A (en)

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