CH233846A - Process for the production of a new azo dye. - Google Patents

Process for the production of a new azo dye.

Info

Publication number
CH233846A
CH233846A CH233846DA CH233846A CH 233846 A CH233846 A CH 233846A CH 233846D A CH233846D A CH 233846DA CH 233846 A CH233846 A CH 233846A
Authority
CH
Switzerland
Prior art keywords
production
azo dye
yellow
new
new azo
Prior art date
Application number
Other languages
German (de)
Inventor
Gesellschaft Fuer Chemis Basel
Original Assignee
Chem Ind Basel
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 Chem Ind Basel filed Critical Chem Ind Basel
Publication of CH233846A publication Critical patent/CH233846A/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
    • 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

Description

  

  Verfahren zur Herstellung eines neuen     Azofarbstofes.       Es wurde gefunden, dass man     einen.    neuen       Azofarbstoff    erhält, wenn man     diazotierten     4 -     Aminobrenzkatechinäthylenäther    mit     1-          Ogy-4-methylbenzol        vereinigt.     



  Der neue Farbstoff     bildet    in trockenem  Zustande ein gelbes Pulver, das sich in orga  nischen     Lösungsmitteln,        wie    Alkohol, Essig  säureäthylester mit gelber Farbe löst.     Ver-          mahlt    man ihn mit einem Verteilungsmittel,       wie    z. B.     Sulfitcelluloseablauge,    so erhält man  eine     feine        Paste,    die in Wasser eine feine  Suspension gibt,     aus    der man     Acetatkunst-          seide    in     gelben,    echten Tönen färbt.

      <I>Beispiel:</I>  15,1 Teile 4-Aminobrenzkatechinäthylen-         äther    werden in     etwa    100 Teilen Wasser sus  pendiert und mit 25 Teilen     30%iger    Salz  säure und 7     Teilen,        Natriumnitrit        diazotiert.     Die kalte Lösung der     Diazoniumverbindung          i    wird in eine     kalte    Lösung, enthaltend  10,8 Teile     1-Ogy-4-methylbenzol,    10 Teile    30     /woig,er        Natriumhydrogydlösung    und 15 Teile       Natriumcarbonat,

          gegeben.    Der Farbstoff fällt  aus. und     wird    nach beendeter Kupplung ab  filtriert     und    gewaschen.



  Process for the preparation of a new azo dye. It was found that one. new azo dye is obtained when diazotized 4-aminocatechol ethylene ether is combined with 1-Ogy-4-methylbenzene.



  The new dye forms a yellow powder when dry, which dissolves in organic solvents such as alcohol, ethyl acetate with a yellow color. If you grind it with a distributing agent such as B. Sulphite cellulose waste liquor, a fine paste is obtained which is a fine suspension in water, from which acetate artificial silk is dyed in yellow, real shades.

      <I> Example: </I> 15.1 parts of 4-aminocatechol ethylene ether are suspended in about 100 parts of water and diazotized with 25 parts of 30% hydrochloric acid and 7 parts of sodium nitrite. The cold solution of the diazonium compound i is in a cold solution containing 10.8 parts of 1-Ogy-4-methylbenzene, 10 parts of 30 / week, he sodium hydrogen solution and 15 parts of sodium carbonate,

          given. The dye precipitates. and is filtered off and washed after the coupling has ended.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Azofarbstoffes, dadurch gekennzeichnet, dass man diazotierten 4-Aminobrenzkatechinäthy- lenäther mit 1=Ogy-4-m@ethylbenzol vereinigt. PATENT CLAIM: A process for the production of a new azo dye, characterized in that diazotized 4-aminocatechol ethylene ether is combined with 1 = Ogy-4-m @ ethylbenzene. Der neue Farbstoff bildet in trockenem Zustande ein gelbes Pulver, das sich in orga nischen Lösungsmitteln, wie Alkohol, Essig- säureäthSTlester, mit gelber Farbe löst. Ver- mahlt man ihn mit einem Verteilungsmittel, wie z. B. Sulfitcelluloseablauge, so erhält man eine Paste, die in Wasser eine feine Suspen sion gibt, aus der man Acetatkunstseide in gelben, echten Tönen färbt. When dry, the new dye forms a yellow powder which dissolves with a yellow color in organic solvents such as alcohol or acetic acid ether esters. If you grind it with a distributing agent, such as B. Sulphite cellulose liquor, a paste is obtained which is a fine suspension in water from which acetate rayon is dyed in yellow, real tones.
CH233846D 1942-10-12 1942-10-12 Process for the production of a new azo dye. CH233846A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH233846T 1942-10-12

Publications (1)

Publication Number Publication Date
CH233846A true CH233846A (en) 1944-08-31

Family

ID=4458249

Family Applications (1)

Application Number Title Priority Date Filing Date
CH233846D CH233846A (en) 1942-10-12 1942-10-12 Process for the production of a new azo dye.

Country Status (1)

Country Link
CH (1) CH233846A (en)

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