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CH180281A - Process for the production of a new dye. - Google Patents

Process for the production of a new dye.

Info

Publication number
CH180281A
CH180281A CH180281DA CH180281A CH 180281 A CH180281 A CH 180281A CH 180281D A CH180281D A CH 180281DA CH 180281 A CH180281 A CH 180281A
Authority
CH
Switzerland
Prior art keywords
production
new dye
greenish blue
dye
aminonaphthalene
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 CH180281A publication Critical patent/CH180281A/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
    • C09B29/24—Monoazo dyes prepared by diazotising and coupling from coupling components containing both hydroxyl and amino directing groups
    • C09B29/28—Amino naphthols

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  Verfahren zur Herstellung eines neuen     Farbstoffes.       Es wurde gefunden, dass man einen neuen       I'a.rbstoff    erhält, wenn man     diazotiertes        ?-          :lrriitio-5-nitro-phenylmethylsulfon    mit 5  Oxy-l     -aminonaphthalin    in saurem Medium  vereinigt. Der so erhaltene Farbstoff bildet  in trockenem Zustande ein dunkelblaues  Pulver. das sich in organischen Lösungsmit  teln, wie Aceton, Essigester usw., mit     leuch-          tund        grünstiehigblauer    Farbe löst.

   Durch  geeignete Zusätze in feine Verteilung ge  bracht, färbt er     Acetatkunstseide    in reinen,       grünstichigblauen,        weissätzbaren    Tönen.  



  <I>Beispiel:</I>       ?1,6    Teile     2-Amino-5-nitro-phenylmethyl-          stilfon    werden unter kräftigem Rühren in  etwa     3()0    Teilen Schwefelsäure gelöst und  darauf durch Zusatz von 8 Teilen Natrium  nitrit oder der entsprechenden Menge     Nitro-          ylscliwefelsäure        diazotiert.    Man rührt, bis       (#ine    Probe in Eiswasser klar löslich ist. Nun       u-ird    die ganze Mischung in viel Eiswasser  gegeben.

   Die so erhaltene klare     Diazolö        sung       vereinigt man mit einer Auflösung von<B>15,9</B>  Teilen     5-Oxy-l-aminonaphthalin    in der nöti  gen Menge verdünnter Mineralsäure. Der  Farbstoff scheidet sich als dunkles Pulver  aus, wird filtriert und neutral gewaschen.



  Process for the production of a new dye. It has been found that a new dye is obtained if diazotized? -: irriitio-5-nitro-phenylmethylsulfone is combined with 5-oxy-l -aminonaphthalene in an acidic medium. The dye thus obtained forms a dark blue powder when dry. which dissolves in organic solvents such as acetone, ethyl acetate, etc., with a bright, greenish blue color.

   Finely dispersed through suitable additives, it dyes acetate artificial silk in pure, greenish blue, white-etchable tones.



  <I> Example: </I>? 1.6 parts of 2-amino-5-nitro-phenylmethyl-stilfon are dissolved in about 3.0 parts of sulfuric acid with vigorous stirring and then by adding 8 parts of sodium nitrite or the equivalent Amount of nitroylsulfuric acid diazotized. The mixture is stirred until a sample is clearly soluble in ice water. The whole mixture is then poured into a large amount of ice water.

   The clear Diazolö solution thus obtained is combined with a dissolution of 15.9 parts of 5-oxy-1-aminonaphthalene in the necessary amount of dilute mineral acid. The dye separates out as a dark powder, 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 5-Oxy-l-aminonaphthalin in saurem Medium vereinigt. Der so erhal tene Farbstoff bildet in trockenem Zustande ein dunkelblaues Pulver, das sich in organi schen Lösungsmitteln, wie Aceton, Essig ester usw., mit leuchtend grünstichigblauer Farbe löst. Durch geeignete Zusätze in feine Verteilung gebracht, färbt er Acetatkunst- seide in reinen, grünstichigblauen, weiss ätzbaren Tönen. PATENT CLAIM: Process for the production of a new dye, characterized in that diazotized 2-amino-5-nitro-phenyl-methylsulfone is combined with 5-oxy-1-aminonaphthalene in an acidic medium. The dyestuff obtained in this way forms a dark blue powder when dry, which dissolves in organic solvents such as acetone, ethyl acetate, etc., with a bright greenish blue color. Finely distributed through suitable additives, it dyes acetate artificial silk in pure, greenish blue, white etchable tones.
CH180281D 1934-03-24 1934-03-24 Process for the production of a new dye. CH180281A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH178224T 1934-03-24
CH180281T 1934-03-24

Publications (1)

Publication Number Publication Date
CH180281A true CH180281A (en) 1935-10-15

Family

ID=25720075

Family Applications (1)

Application Number Title Priority Date Filing Date
CH180281D CH180281A (en) 1934-03-24 1934-03-24 Process for the production of a new dye.

Country Status (1)

Country Link
CH (1) CH180281A (en)

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