CH241159A - Process for the preparation of a new monoazo dye. - Google Patents

Process for the preparation of a new monoazo dye.

Info

Publication number
CH241159A
CH241159A CH241159DA CH241159A CH 241159 A CH241159 A CH 241159A CH 241159D A CH241159D A CH 241159DA CH 241159 A CH241159 A CH 241159A
Authority
CH
Switzerland
Prior art keywords
new
solution
yellow
dye
soluble
Prior art date
Application number
Other languages
German (de)
Inventor
Limited Imperial Ch Industries
Original Assignee
Ici Ltd
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 Ici Ltd filed Critical Ici Ltd
Publication of CH241159A publication Critical patent/CH241159A/en

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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
    • C09B62/00—Reactive dyes, i.e. dyes which form covalent bonds with the substrates or which polymerise with themselves
    • C09B62/44—Reactive dyes, i.e. dyes which form covalent bonds with the substrates or which polymerise with themselves with the reactive group not directly attached to a heterocyclic ring
    • C09B62/62—Reactive dyes, i.e. dyes which form covalent bonds with the substrates or which polymerise with themselves with the reactive group not directly attached to a heterocyclic ring the reactive group being an ethylenimino or N—acylated ethylenimino group or a —CO—NH—CH2—CH2—X group, wherein X is a halogen atom, a quaternary ammonium group or O—acyl and acyl is derived from an organic or inorganic acid, or a beta—substituted ethylamine group
    • C09B62/66—Azo dyes
    • 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
    • C09B29/00—Monoazo dyes prepared by diazotising and coupling
    • C09B29/10—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group
    • C09B29/12—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group of the benzene series
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C1/00—Winding mechanical clocks electrically
    • G04C1/02—Winding mechanical clocks electrically by electromagnets

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Organic Chemistry (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Inorganic Chemistry (AREA)
  • Coloring (AREA)

Description

  

      Terfalir    en zur Herstellung eines neuen     Honoazofar        bstoffes.       Die vorliegende Erfindung betrifft ein  Verfahren zur     Herstellung    eines neuen was  serlöslichen     Monoazofarbstoffes,    der sich zum  Färben und Drucken von     künstlicher    Acetat  seide, Wolle, Seide,

       zinnbeschwerter    Seide  sowie Nylon eignet und durch     Kuppeln    von       diazotiertem        p-Aminopheny@-ss-oxyäthyläther     mit     p-Benzylphenol    und Behandeln der so er  haltenen     Monoazoverbindung    mit einem     Sul-          fierungsmittel    erhalten     wird.     



       Beispiel:          15,3,    Teile     p-Aminophenyl-ss-oxyäthyl-          äther    werden     diazotiert    und die     Diazolösung     einer Lösung von     18a4    Teilen     p-Benzylphenol,     gelöst in 4001 Teilen Wasser, enthaltend  4 Teile     Natriumhydroxyd    und 20     Teile    was  serfreies     Natriumcarbonat,    zugesetzt.

       Hier-          auf        versetzt        ,man     während der  Kupplung     mit        lün-wässrigem        Natriumhydro-          xyd,    um das     p-Benzylphenol    weitgehend in  Lösung zu halten. Nach beendeter Kupplung  versetzt man mit     1-0n-Salzsäure"    um die         Honoazoverbindung    auszufällen, worauf die  selbe     @abfiltriert,    gründlich mit Wasser ge  waschen und getrocknet wird.  



  Die getrocknete     Monoazoverbindung    wird  gepulvert und     Almähli.ch        unter    Rühren zu  200 Teilen 80- bis 90%iger Schwefelsäure  zugesetzt. Es wird     während    10-15 Stunden  bei 15-30  C     weitergerührt.    Die erzielte Lö  sung wird nun in ein     gerührtes    Gemisch von  200 Teilen Eis und 200 Teilen     Wasser    ge  stürzt, worauf man so lange langsam     1,0n-Na-          tronlauge,    zugibt, bis das     wässrige    Medium  schwach     lackmusalkaliseh        isst,

      wobei man die  erforderliche Menge Eis einträgt, um die  Temperatur auf weniger     als,        210     C zu halten.  Der neue Farbstoff wird     sehliesslich        abfil-          triert    und getrocknet.  



  Der neue Farbstoff bildet ein gelbes Pul  ver, welches in warmem Wasser unter Bildung  einer gelben Lösung und in     konzentrierter     Schwefelsäure unter Bildung einer     matt     scharlachroten     Lösung        löslich    ist. Er färbt       Celluloseacetatseide    und Nylonfasern in hell-      gelben Tönen von guter Licht- und     Nass-          echtheit.  



      Terfalir en for the production of a new honoazo dye. The present invention relates to a process for the preparation of a new monoazo dye which is soluble in water, which is suitable for dyeing and printing artificial acetate, wool, silk,

       Tin-weighted silk and nylon is suitable and is obtained by coupling diazotized p-aminopheny @ -ss-oxyethyl ether with p-benzylphenol and treating the monoazo compound thus obtained with a sulphonating agent.



       Example: 15.3 parts of p-aminophenyl-ss-oxyäthyl ether are diazotized and the diazo solution of a solution of 18a4 parts of p-benzylphenol dissolved in 4001 parts of water containing 4 parts of sodium hydroxide and 20 parts of sodium carbonate, which is free from water, is added.

       Then, during the coupling, aqueous sodium hydroxide is added to keep the p-benzylphenol largely in solution. After the coupling is complete, 1-0N hydrochloric acid is added to precipitate the honoazo compound, whereupon the same is filtered off, washed thoroughly with water and dried.



  The dried monoazo compound is powdered and Almähli.ch is added to 200 parts of 80 to 90% sulfuric acid with stirring. Stirring is continued at 15-30 ° C. for 10-15 hours. The solution obtained is then plunged into a stirred mixture of 200 parts of ice and 200 parts of water, whereupon 1.0N sodium hydroxide solution is slowly added until the aqueous medium eats weakly litmus alkali,

      adding enough ice to keep the temperature below 210C. The new dye is finally filtered off and dried.



  The new dye forms a yellow powder which is soluble in warm water to form a yellow solution and in concentrated sulfuric acid to form a dull, scarlet solution. It dyes cellulose acetate silk and nylon fibers in light yellow tones with good light and wet fastness.

Claims (1)

PATENTANSPRUCH: Verfahren zur Tierstellung eines neuen wasserlöslichen Monoazofarbstoffes., dadurch gekennzeichnet, dass man diazotierten p- AminGphenyl-ss-ogyäthyläther mit p-Benzyl- pheno:l kuppelt und hierauf die so erhaltene Monoazoverbindung mit einem Sulfierungs- mittel behandelt. PATENT CLAIM: A method for producing a new water-soluble monoazo dye., Characterized in that diazotized p-amine-phenyl-s-ogyethyl ether is coupled with p-benzyl-pheno: 1 and the monoazo compound thus obtained is then treated with a sulfonating agent. Der neue Farbstoff bildet ein gelbes Pul ver, welches in warmem Wasser unter Bil dung einer gelben Lösung und in konzen trierter Schwefelsäure unter Bildung einer matt scharlachroten Lösung löslich ist. Er färbt Celluloseacetatseide und Nylonfasern in heilgelben Tönen von guter Licht- und Nassechtheit. The new dye forms a yellow powder, which is soluble in warm water to form a yellow solution and in concentrated sulfuric acid to form a matt scarlet solution. It dyes cellulose acetate silk and nylon fibers in healing yellow tones with good light and wet fastness.
CH241159D 1942-06-29 1943-06-25 Process for the preparation of a new monoazo dye. CH241159A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB241159X 1942-06-29
CH239212T 1943-06-25

Publications (1)

Publication Number Publication Date
CH241159A true CH241159A (en) 1946-02-15

Family

ID=25728383

Family Applications (1)

Application Number Title Priority Date Filing Date
CH241159D CH241159A (en) 1942-06-29 1943-06-25 Process for the preparation of a new monoazo dye.

Country Status (1)

Country Link
CH (1) CH241159A (en)

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