CH198150A - Process for the production of a vat dye. - Google Patents

Process for the production of a vat dye.

Info

Publication number
CH198150A
CH198150A CH198150DA CH198150A CH 198150 A CH198150 A CH 198150A CH 198150D A CH198150D A CH 198150DA CH 198150 A CH198150 A CH 198150A
Authority
CH
Switzerland
Prior art keywords
dye
production
sulfuric acid
vat
new
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 CH198150A publication Critical patent/CH198150A/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
    • C09B3/00—Dyes with an anthracene nucleus condensed with one or more carbocyclic rings
    • C09B3/02—Benzathrones
    • C09B3/06—Preparation from starting materials already containing the benzanthrone nucleus
    • C09B3/10—Amino derivatives

Landscapes

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

Description

  

  Verfahren zur     Herstellung    eines     Küpenfarbstoffes.            Es    wurde     gefunden"dass    man einen neuen       Küpenfarbstoff    erhält, wenn man .den Farb  stoff, der erhältlich ist durch Behandeln mit       Ätzalkalien        des    Kondensationsproduktes aus       1-Aminoanthrachinon    und     1-Benz-brom-6-          methylbenzanthron,    in einer wässerigen  Schwefelsäure, deren Wassergehalt höch  stens<B>15%</B> beträgt, mit Brom behandelt.  



  Der neue Farbstoff bildet ein dunkles  Pulver, das sich in     konzentrierter    Schwefel  säure mit     olivegrüner    Farbe löst und Baum  wolle     aus,der    alkalischen     Hydrosulfitküpe    in  echten,     insbesondere    chlorechten, oliven Tönen  färbt.  



  <I>Beispiel:</I>  46 Teile des Farbstoffes aus dem Kon  densationsprodukt von     1-Aminoanthrachinon     und     1-Benz-brom-,6-methylbenzathron    werden  in 500 Teilen 88%iger Schwefelsäure gelöst,  dazu werden langsam bei gewöhnlicher Tem  peratur 18 Teile Brom getropft     und.        die     Masse langsam auf 45 bis<B>55'</B> erwärmt. Man    hält diese     Temperatur    so lange, bis alles  Brom verbraucht ist, trägt auf Wasser aus,  filtriert, wäscht neutral und trocknet.



  Process for the production of a vat dye. It has been found that "a new vat dye is obtained if one. The dye, which is obtainable by treating with caustic alkalis of the condensation product of 1-aminoanthraquinone and 1-benz-bromo-6-methylbenzanthrone, in an aqueous sulfuric acid whose water content is high at least <B> 15% </B>, treated with bromine.



  The new dye forms a dark powder that dissolves in concentrated sulfuric acid with an olive-green color and colors cotton from the alkaline hydrosulphite vat in real, especially chlorine-proof, olive tones.



  <I> Example: </I> 46 parts of the dye from the condensation product of 1-aminoanthraquinone and 1-benz-bromo-, 6-methylbenzathrone are dissolved in 500 parts of 88% sulfuric acid, for this purpose are slowly added at normal temperature 18 Parts of bromine dripped and. slowly heat the mixture to 45 to <B> 55 '</B>. This temperature is kept until all the bromine is consumed, poured onto water, filtered, washed neutral and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Küpenfarbstoffes, dadurch gekennzeichnet, .dass man den Farbstoff, der erhältlich ist durch Behandeln mit Ätzalkalien des Kon densationsproduktes aus 1-Aminoanthrachi- non und 1-Benz-brom-6-methylbenzanthron, in einer wässerigen Schwefelsäure, deren Wassergehalt höchstens 15 % beträgt, mit Brom behandelt. PATENT CLAIM: Process for the production of a new vat dye, characterized in that the dye, which is obtainable by treating with caustic alkalis of the condensation product of 1-aminoanthraquinone and 1-benz-bromo-6-methylbenzanthrone, is in an aqueous sulfuric acid, whose water content does not exceed 15%, treated with bromine. Der neue Farbstoff bildet ein dunkles Pulver, das sich in konzentrierter Schwefel säure mit olivegrüner Farbe löst und Baum wolle aus der alkalischen Hydrosulfitküpe in echten, insbesondere chlorechten, oliven Tönen färbt. The new dye forms a dark powder that dissolves in concentrated sulfuric acid with an olive green color and colors cotton from the alkaline hydrosulfite vat in real, especially chlorine-proof, olive tones.
CH198150D 1937-06-01 1937-06-01 Process for the production of a vat dye. CH198150A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH198150T 1937-06-01

Publications (1)

Publication Number Publication Date
CH198150A true CH198150A (en) 1938-06-15

Family

ID=4441198

Family Applications (1)

Application Number Title Priority Date Filing Date
CH198150D CH198150A (en) 1937-06-01 1937-06-01 Process for the production of a vat dye.

Country Status (1)

Country Link
CH (1) CH198150A (en)

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