CH106439A - Process for the production of a new indigoid dye. - Google Patents

Process for the production of a new indigoid dye.

Info

Publication number
CH106439A
CH106439A CH106439DA CH106439A CH 106439 A CH106439 A CH 106439A CH 106439D A CH106439D A CH 106439DA CH 106439 A CH106439 A CH 106439A
Authority
CH
Switzerland
Prior art keywords
dye
production
indigoid dye
dissolves
gray
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 CH106439A publication Critical patent/CH106439A/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
    • C09B7/00—Indigoid dyes
    • C09B7/10—Bis-thionapthene indigos

Landscapes

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

Description

  

  Verfahren zur Herstellung eines     indigoiden        Farbstoffes.       Es wurde gefunden, dass man     einen          indigoiden    Farbstoff erhält, wenn man das       2,3-Thionaphthisatin,    in welchem     das        a-          Ketonsasuerstoffatom    durch ein     übspaltbares     Radikal, wie zum     Beispiel    Halogen oder eine       Anilgruppe,        ersetzt    ist, mit     OxytIiiomaphthen-          karbonsäure    kondensiert.

   Der Farbstoff stellt  ein graublaues Pulver dar, das sich in Schwe  felsäure mit grüner Farbe löst. Mit     Hydro-          sulfit    und Natronlauge geht der Farbstoff  mit     orangebrauner    Farbe in Lösung und  färbt daraus Baumwolle in grauen Nuancen  von guter Echtheit.  



       Beispiel:     332 Teile     2-(4'-Dimethylamino)-an11    des  2,3 -     Thionaphthisatins    und 194 Teile     Oxy-          thion.aphthenl#:.arbonsäure    werden in 5000  Teilen Alkohol kurze Zeit     am    Rückflussküh-         ler        gelw-cht.    Der gebildete Farbstoff wird fil  triert, gewaschen und getrocknet.



  Process for the production of an indigoid dye. It has been found that an indigoid dye is obtained if the 2,3-thionaphthisatin, in which the α-ketone oxygen atom has been replaced by a cleavable radical, such as halogen or an anil group, is condensed with oxytomaphthenecarboxylic acid.

   The dye is a gray-blue powder that dissolves in sulfuric acid with a green color. The orange-brown dye dissolves with hydrosulfite and sodium hydroxide solution and dyes cotton in gray shades of good fastness.



       Example: 332 parts of 2- (4'-dimethylamino) -an11 des 2,3-thionaphthisatin and 194 parts of oxythione.aphthenic acid are waxed in 5000 parts of alcohol for a short time on the reflux condenser. The dye formed is filtered off, washed and dried.

Claims (1)

PATENTANSPRUCH: -Verfahren zur Herstellung eines indigoi- den Farbstoffes, dadurch gekennzeichnet, dass man 2,3-Thionaphthisatin. in welchem das a- Kelto.nsauerstoffatom durch ein abspaltbares Radikal ersetzt ist, mit Oxythionaphthenka.r- bonsäure kondensiert. Der Farbstoff stellt ein graublaues Pulver dar, das sich in Schwe felsäure mit grüner Farbe löst. PATENT CLAIM: -Process for the production of an indigoid dye, characterized in that 2,3-thionaphthisatin. in which the α-Kelto.nsauerstoffatom is replaced by a removable radical, condensed with Oxythionaphthenka.r- bonsäure. The dye is a gray-blue powder that dissolves in sulfuric acid with a green color. Mit Hydro- sulfit und Natronlauge geht der Farbstoff mit orangebrauner Farbe in Lösung und färbt daraus Baumwolle in grauen Nuancen von guter Echtheit. The orange-brown dye dissolves with hydrosulfite and sodium hydroxide solution and dyes cotton in gray shades of good fastness.
CH106439D 1922-11-18 1923-07-18 Process for the production of a new indigoid dye. CH106439A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH100705T 1922-11-18
CH106439T 1923-07-18

Publications (1)

Publication Number Publication Date
CH106439A true CH106439A (en) 1924-09-01

Family

ID=25705854

Family Applications (1)

Application Number Title Priority Date Filing Date
CH106439D CH106439A (en) 1922-11-18 1923-07-18 Process for the production of a new indigoid dye.

Country Status (1)

Country Link
CH (1) CH106439A (en)

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