CH180292A - Process for the production of a new dye. - Google Patents

Process for the production of a new dye.

Info

Publication number
CH180292A
CH180292A CH180292DA CH180292A CH 180292 A CH180292 A CH 180292A CH 180292D A CH180292D A CH 180292DA CH 180292 A CH180292 A CH 180292A
Authority
CH
Switzerland
Prior art keywords
production
dye
new dye
blue
oxynaphthalene
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 CH180292A publication Critical patent/CH180292A/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B29/00Monoazo dyes prepared by diazotising and coupling
    • C09B29/24Monoazo dyes prepared by diazotising and coupling from coupling components containing both hydroxyl and amino directing groups
    • C09B29/28Amino naphthols

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Paper (AREA)
  • Coloring (AREA)

Description

  

      Zusatzpatent    zum Hauptpatent Nr. 178224.    verfahren zur Herstellung eines neuen     Farbstoffes.       Es wurde gefunden, dass man einen neuen       Farbstoff    erhält, wenn man     diazotiertes        2-          Amino-5-nitro-phenylmethylsulfon    mit     1-          Oxyäthylamino-5-oxynaphthalin    in saurem  Medium vereinigt. Der so erhaltene Farbstoff  bildet in trockenem Zustande ein dunkles  Pulver, das sich in organischen Lösungsmit  teln, wie Aceton, Essigester usw., mit leuch  tend blaugrüner Farbe löst.

   Durch geeignete       Zusätze    in feine     Verteilung    gebracht, färbt  er     Aeetatkunstseide    in reinen, blaugrünen  Tönen.    <I>Beispiel:</I>         21,6    Teile     ?-Amino-5-nitro-phenylmethyl-          sulfon    werden unter kräftigem Rühren in  etwa 300 Teilen Schwefelsäure gelöst und  darauf durch Zusatz von 8 Teilen Natrium  nitrit oder der entsprechenden Menge     Nitro-          sylsehwefelsäure        diazotiert.    Man rührt, bis  eine Probe in Eiswasser klar löslich ist. Nun  wird die ganze     Misohung    in viel Eiswasser  gegeben.

   Die so erhaltene klare     Diazolösung       vereinigt man mit einer Auflösung von 20,3  Teilen     1-Oxäthylamino-5-oxynaphthalin    in  der nötigen Menge verdünnter Mineralsäure.  Der     Farbstoff    scheidet sich als     dunkles    Pul  ver aus. Nachdem die Kupplung durch Zu  satz von     Natriumacetat    zu Ende geführt  wurde, wird filtriert und neutral gewaschen.



      Additional patent to main patent no. 178224. process for the production of a new dye. It has been found that a new dye is obtained if diazotized 2-amino-5-nitro-phenylmethylsulfone is combined with 1-oxyethylamino-5-oxynaphthalene in an acidic medium. The dye thus obtained forms a dark powder in the dry state, which dissolves in organic solvents such as acetone, ethyl acetate, etc., with a bright blue-green color.

   Finely dispersed with suitable additives, he dyes acetate silk in pure, blue-green tones. <I> Example: </I> 21.6 parts of? -Amino-5-nitro-phenylmethylsulfone are dissolved in about 300 parts of sulfuric acid with vigorous stirring and then added by adding 8 parts of sodium nitrite or the corresponding amount of nitrosylsulfuric acid diazotized. The mixture is stirred until a sample is clearly soluble in ice water. Now the whole Misohung is poured into a lot of ice water.

   The clear diazo solution thus obtained is combined with a dissolution of 20.3 parts of 1-oxethylamino-5-oxynaphthalene in the necessary amount of dilute mineral acid. The dye separates out as a dark powder. After the coupling has been completed by adding sodium acetate, it is filtered and washed neutral.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Farbstoffes, dadurch gekennzeichnet, dass man diazotiertes 2-Amino-5-nitro-phenyl- methylsulfon mit 1-Ogyäthylamino-5-oxy- naphthalin in saurem Medium vereinigt. Der so erhaltene Farbstoff bildet in trockenem Zustande ein dunkles Pulver, das sich in or ganischen Lösungsmitteln, wie Aceton, Essig ester usw., mit leuchtend blaugrüner Farbe löst. Durch geeignete Zusätze in feine Ver teilung gebracht, färbt er Acetatkunstseide in reinen, blaugrünen Tönen. PATENT CLAIM: Process for the production of a new dye, characterized in that diazotized 2-amino-5-nitro-phenyl-methylsulfone is combined with 1-ogyäthylamino-5-oxynaphthalene in an acidic medium. The dye thus obtained forms a dark powder when dry, which dissolves in organic solvents such as acetone, ethyl acetate, etc., with a bright blue-green color. Finely distributed through suitable additives, it dyes acetate artificial silk in pure, blue-green tones.
CH180292D 1934-03-24 1934-03-24 Process for the production of a new dye. CH180292A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH180292T 1934-03-24
CH178224T 1934-03-24

Publications (1)

Publication Number Publication Date
CH180292A true CH180292A (en) 1935-10-15

Family

ID=25720086

Family Applications (1)

Application Number Title Priority Date Filing Date
CH180292D CH180292A (en) 1934-03-24 1934-03-24 Process for the production of a new dye.

Country Status (1)

Country Link
CH (1) CH180292A (en)

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