CH300801A - Process for the production of a sulfur dye. - Google Patents

Process for the production of a sulfur dye.

Info

Publication number
CH300801A
CH300801A CH300801DA CH300801A CH 300801 A CH300801 A CH 300801A CH 300801D A CH300801D A CH 300801DA CH 300801 A CH300801 A CH 300801A
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 CH300801A publication Critical patent/CH300801A/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)
  • Coloring (AREA)

Description

  

  Zusatzpatent zum Hauptpatent Nr. 29433.9.    Verfahren     zur        Herstellung    eines     Schwefelfarbstoffes.       Gegenstand     vorliegenden    Patentes ist ein  Verfahren zur     Herstelhmg    eines Schwefelfarb  stoffes. Das Verfahren ist dadurch gekenn  zeichnet, dass man auf     4-(p-Oxy-phenylamino)-          N-äthyl-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 dunkelblaues, rot bronzierendes Pulver dar,  das vegetabilische Fasern aus     schwefelnatrium-          haltiger    Flotte in reinen,     grünstichig    blauen  Tönen färbt.  



  <I>Beispiel:</I>  In eine     Polysulfidschmelze,.bestehend    aus  336 Teilen Schwefel, 273 Teilen Schwefel  natrium     (60o/oig)    und 750 Teilen     Äthylen-          glykolmonoäthyläther,    trägt man 250 Teile  eines trockenen     Leukoindophenols    von folgen  der Konstitution ein  
EMI0001.0019     
    und heizt die Mischung auf Siedetemperatur.

    Durch Zugabe von Wasser stellt man den  Siedepunkt der Schmelze auf 115  ein und  hält sie für 40 Stunden unter     Rückfluss.       Das Gemisch wird sodann     wasserdampfdestil-          liert    und die schmutzig gelbgrüne Farbstoff  lösung nach Zusatz von etwa 100 Teilen  Schwefelnatrium     1001h,    filtriert. Der Farb  stoff kann auf übliche Weise durch Aus  säuern oder durch Lüftung     isoliert    werden.  Er stellt nach der     Trocknung    ein dunkelblaues,  rot bronzierendes Pulver dar, welches vegeta  bilische Fasern aus     schwefelnatriumhaltiger     Flotte in reinen,     grünstichig    blauen Tönen  färbt.

   Die Echtheitseigenschaften sind aus  gezeichnet, wobei insbesondere die Chlorecht  beit einen bisher bei blauen Schwefelfarb  stoffen     urerreicht    guten Wert zeigt:



  Additional patent to the main patent No. 29433.9. Process for the production of a sulfur dye. The subject of the present patent is a method for the production of a sulfur color. The process is characterized in that 4- (p-oxy-phenylamino) - N-ethyl-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 blue, red bronzing powder which dyes vegetable fibers from liquor containing sulfur sodium in pure, greenish blue tones.



  <I> Example: </I> In a polysulfide melt consisting of 336 parts of sulfur, 273 parts of sodium sulfur (60%) and 750 parts of ethylene glycol monoethyl ether, 250 parts of a dry leucoindophenol of the following constitution are introduced
EMI0001.0019
    and heats the mixture to boiling temperature.

    The boiling point of the melt is adjusted to 115 by adding water and is kept under reflux for 40 hours. The mixture is then steam distilled and the dirty yellow-green dye solution, after adding about 100 parts of sodium sulphide 1001h, is filtered. The dye can be acidified in the usual way by acidifying or by ventilation. After drying, it is a dark blue, red bronzing powder, which dyes vegetal fibers from liquor containing sodium sulphide in pure, greenish blue tones.

   The fastness properties are excellent, with the chlorine law in particular showing a value that has so far been achieved with blue sulfur dyes:

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Schwefel farbstoffes, dadurch gekennzeichnet, dass man auf 4-(p-Oxy-phenylamino)-N-äthyl-diphenyl- amin Schwefel einführende Mittel einwirken lässt. Der erhaltene neue Schwefelfarbstoff stellt. ein dunkelblaues, rot bronzierendes Pulver dar, das vegetabilische Fasern aus sehivefel- natriumhaltiger Flotte in reinen, grünstichig blauen Tönen färbt. PATENT CLAIM: A process for the production of a sulfur dye, characterized in that sulfur-introducing agents are allowed to act on 4- (p-oxy-phenylamino) -N-ethyl-diphenylamine. The new sulfur dye obtained represents. is a dark blue, red bronzing powder that colors vegetable fibers from liquor containing sehivefel and sodium in pure, greenish blue tones. UNTERANSPRUCII Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man Alkalipolysulfide in Gegenwart eines Glykolmonoalkyläthers bei Temperaturen von 100-125 einwirken lässt. SUBSTITUTE SHEET A method according to claim, characterized in that alkali polysulphides are allowed to act in the presence of a glycol monoalkyl ether at temperatures of 100-125.
CH300801D 1951-03-22 1951-03-22 Process for the production of a sulfur dye. CH300801A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH294339T 1951-03-22
CH300801T 1951-03-22

Publications (1)

Publication Number Publication Date
CH300801A true CH300801A (en) 1954-08-15

Family

ID=25733466

Family Applications (1)

Application Number Title Priority Date Filing Date
CH300801D CH300801A (en) 1951-03-22 1951-03-22 Process for the production of a sulfur dye.

Country Status (1)

Country Link
CH (1) CH300801A (en)

Similar Documents

Publication Publication Date Title
CH300801A (en) Process for the production of a sulfur dye.
CH300803A (en) Process for the production of a sulfur dye.
DE1264386B (en) Process for dyeing or printing polyester fibers
DE466810C (en) Process for producing real yellow tints
DE729230C (en) Process for printing animal fibers or cellulose fibers or fiber mixtures thereof with chromium stain dyes
CH300804A (en) Process for the production of a sulfur dye.
CH300805A (en) Process for the production of a sulfur dye.
DE128361C (en)
DE651666C (en) Process for the production of colored sulfur dye preparations
DE622983C (en) Process for the production of chromium-containing dyes
AT214029B (en) Process for the preparation of new monoazo dyes
DE488816C (en) Process for the production of sulfur dyes
CH235709A (en) Process for the production of a sulfur dye.
CH101088A (en) Process for the preparation of a blue sulfur dye.
CH300802A (en) Process for the production of a sulfur dye.
CH294339A (en) Process for the production of a sulfur dye.
CH235710A (en) Process for the production of a sulfur dye.
CH198892A (en) Process for the production of a sulfur dye.
CH347918A (en) Process for the production of vat dyes of the acedianthron series
CH178111A (en) Process for the production of a new azo dye.
CH246580A (en) Process for the preparation of a new anthraquinone dye.
CH262960A (en) Process for the preparation of a monoazo dye.
CH246581A (en) Process for the preparation of a new anthraquinone dye.
CH155016A (en) Process for the production of a new azo dye.
CH189315A (en) Process for the production of a new anthraquinone dye.