CH100189A - Process for the preparation of a blue sulfur dye. - Google Patents

Process for the preparation of a blue sulfur dye.

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Publication number
CH100189A
CH100189A CH100189DA CH100189A CH 100189 A CH100189 A CH 100189A CH 100189D A CH100189D A CH 100189DA CH 100189 A CH100189 A CH 100189A
Authority
CH
Switzerland
Prior art keywords
preparation
sulfur dye
blue
dye
blue sulfur
Prior art date
Application number
Other languages
German (de)
Inventor
Farbenfabriken Vorm Friedr Co
Original Assignee
Farbenfab Vorm Bayer F & Co
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 Farbenfab Vorm Bayer F & Co filed Critical Farbenfab Vorm Bayer F & Co
Publication of CH100189A publication Critical patent/CH100189A/en

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Description

  

  Verfahren zur Darstellung eines blauen     Schwefelfarbstoffes.       Es wurde gefunden, dass das aus     Benzyl-          tnethyla.nilin    und     Nitrosophenol,        Chinonchlori-          mid    oder     p-Aminophenol    oder aus     p-Amino-          benzylmethylanilin    und Phenol erhältliche  Indophenol in der     Alkali-Polysulfidschmelze     einen kochechten, blauen     Schwefelfarbfstoff     von klaren Nuancen und aussergewöhnlicher  Chlorechtheit liefert.

   An Stelle des     Indo-          phenols    selbst kann auch dessen     Leukov        er-          bindung    verwendet werden.  



       Beispiel:     Das aus 28,6 Gewichtsteilen     -L#lethyl-          benzylanilin    und     Chinonchlorimid    erhaltene  Indophenol wird in alkoholischer Lösung mit  einem Polysulfid aus 80 Gewichtsteilen tech  nischen     calciniertem        Schwefelnatrium    und  100 Gewichtsteilen Schwefel 60 Stunden am       Rückflusskühler    gekocht und nach den übli  chen Methoden aufgearbeitet.    Der Farbstoff färbt Baumwolle aus der       Hydrosulfitküpe    in klaren,     grünstichig    blauen  Tönen von sehr guter Koch-, Chlor- und  Lichtechtheit.



  Process for the preparation of a blue sulfur dye. It has been found that the indophenol obtainable from benzyl methylaniline and nitrosophenol, quinone chloride or p-aminophenol or from p-aminobenzylmethylaniline and phenol in the alkali polysulfide melt provides a boiling, blue sulfur color of clear nuances and exceptional chlorinefastness .

   Instead of the indophenol itself, its Leukov compound can also be used.



       Example: The indophenol obtained from 28.6 parts by weight of -L # lethyl- benzylaniline and quinone chlorimide is boiled in an alcoholic solution with a polysulfide of 80 parts by weight of technical calcined sodium sulfur and 100 parts by weight of sulfur for 60 hours on a reflux condenser and worked up according to the usual methods. The dye dyes cotton from the hydrosulfite vat in clear, greenish blue shades of very good boil, chlorine and lightfastness.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines blauen Schwefelfarbstoffes, darin bestehend, dass man das Indophenol, das man aus Benzyl- methylanilin und Nitrosophenol, Chinonchlori- mid oder p-Aminophenol oder aus p-Amino- benzylmethylanilin und Phenol erhalten kann, mit Alkali-Polysulfiden behandelt. Der Farbstoff färbt Baumwolle aus der Hydrosulfitküpe in klaren grünstichig blauen Tönen von sehr guter Koch-, Chlor- und Lichtechtheit. PATENT CLAIM: Process for the preparation of a blue sulfur dye, consisting in treating the indophenol, which can be obtained from benzylmethylaniline and nitrosophenol, quinone chloride or p-aminophenol or from p-aminobenzylmethylaniline and phenol, with alkali polysulphides . The dye dyes cotton from the hydrosulfite vat in clear, greenish blue shades of very good boiling, chlorine and lightfastness.
CH100189D 1921-05-02 1922-04-24 Process for the preparation of a blue sulfur dye. CH100189A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE100189X 1921-05-02

Publications (1)

Publication Number Publication Date
CH100189A true CH100189A (en) 1923-07-02

Family

ID=5648445

Family Applications (1)

Application Number Title Priority Date Filing Date
CH100189D CH100189A (en) 1921-05-02 1922-04-24 Process for the preparation of a blue sulfur dye.

Country Status (1)

Country Link
CH (1) CH100189A (en)

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