CH263847A - Process for the production of a vat dye. - Google Patents

Process for the production of a vat dye.

Info

Publication number
CH263847A
CH263847A CH263847DA CH263847A CH 263847 A CH263847 A CH 263847A CH 263847D A CH263847D A CH 263847DA CH 263847 A CH263847 A CH 263847A
Authority
CH
Switzerland
Prior art keywords
production
vat
dye
vat dye
parts
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellschaft Ciba
Original Assignee
Ciba Geigy
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 Ciba Geigy filed Critical Ciba Geigy
Publication of CH263847A publication Critical patent/CH263847A/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
    • C09B5/00—Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings
    • C09B5/24—Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings the heterocyclic rings being only condensed with an anthraquinone nucleus in 1-2 or 2-3 position
    • C09B5/26—Carbazoles of the anthracene series
    • C09B5/28—Anthrimide carbazoles
    • 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
    • C09B5/00—Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings
    • C09B5/24—Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings the heterocyclic rings being only condensed with an anthraquinone nucleus in 1-2 or 2-3 position
    • C09B5/26—Carbazoles of the anthracene series

Landscapes

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

Description

  

  <B>Zusatzpatent</B> zum Hauptpatent Nr. 257722.    Verfahren zur Herstellung eines     Küpenfarbstoffes.       Es wurde gefunden, dass ein wertvoller       Küpenfarbstoff    hergestellt werden kann, wenn  man das Kondensationsprodukt aus 1     Mol            3',6'-Diehlor-3,4-phthaloyl-pyren    und 2     Mol          1-Aminoanthrachinon    der Formel  
EMI0001.0007     
    mit     carbazolierenden    Mitteln behandelt.  



  Der neue Farbstoff ist ein dunkles Pulver,  das sich in konzentrierter Schwefelsäure mit       rötlichbrauner    Farbe löst und Baumwolle aus  rotbrauner     Küpe    in     sehwärzlichen    Braun  tönen färbt.  



  <I>Beispiel:</I>  60 Teile Aluminiumchlorid werden in 130  Teile trockenes     Pyridin    eingetragen und 10  Teile     Pyridin        abdestillieren    gelassen. Bei  einer Temperatur von     121-123     werden  6 Teile des Kondensationsproduktes aus 1     Mol            3',6'-Dichlor-3,4-phthaloyl-pyren    und 2     Mol          1-Aminoanthrachinon    zugefügt und 1 Stunde  bei dieser Temperatur gerührt.

   Die Schmelze  wird in     Wasser    ausgetragen, mit Natronlauge  alkalisch gestellt, mit.     Natriumhydrosulfit        ver-          küpt    und von wenig Verunreinigungen     abfil-          triert.    Nach dem Ausblasen mit Luft,     Abfil-          trieren,    Auswaschen und Trocknen stellt der  Farbstoff ein dunkles Pulver dar. Durch       Naehoxydieren    in schwefelsaurer Lösung mit       Dichromat    bei erhöhter Temperatur. kann der  Farbstoff noch etwas gereinigt werden.

        Zu     einem        gleichfärbenden    Farbstoff ge  langt man auch,     wenn    die     Carbazolierung    bei       einer    Temperatur von 140  durchgeführt       wird,    oder wenn man nur 30 Teile Alumi  niumchlorid und etwa 70 Teile     Pyridin    ver  wendet.



  <B> Additional patent </B> to main patent No. 257722. Process for the production of a vat dye. It has been found that a valuable vat dye can be produced if the condensation product of 1 mole of 3 ', 6'-Diehlor-3,4-phthaloyl-pyrene and 2 moles of 1-aminoanthraquinone of the formula
EMI0001.0007
    treated with carbazolating agents.



  The new dye is a dark powder that dissolves in concentrated sulfuric acid with a reddish-brown color and dyes cotton from a reddish-brown vat in blackish brown tones.



  <I> Example: </I> 60 parts of aluminum chloride are introduced into 130 parts of dry pyridine and 10 parts of pyridine are allowed to distill off. At a temperature of 121-123 6 parts of the condensation product of 1 mole of 3 ', 6'-dichloro-3,4-phthaloyl-pyrene and 2 moles of 1-aminoanthraquinone are added and the mixture is stirred at this temperature for 1 hour.

   The melt is discharged into water, made alkaline with sodium hydroxide solution, with. Sodium hydrosulphite is vat and a few impurities are filtered off. After blowing out with air, filtering off, washing out and drying, the dyestuff is a dark powder. By oxidizing in sulfuric acid solution with dichromate at elevated temperature. the dye can still be cleaned a little.

        A dye of the same color is also obtained if the carbazolation is carried out at a temperature of 140, or if only 30 parts of aluminum chloride and about 70 parts of pyridine are used.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Küpen- farbstoffes, dadurch gekennzeichnet, dass man das Kondensationsprodukt aus 1 Mol 3',6'-Dichlor-3,4-phthaloyl-pyren und 2 Mol 1-Aminoanthrachinon der Formel EMI0002.0017 mit carbazolierenden Mitteln behandelt. PATENT CLAIM: Process for the production of a vat dye, characterized in that the condensation product of 1 mol of 3 ', 6'-dichloro-3,4-phthaloyl-pyrene and 2 mol of 1-aminoanthraquinone of the formula EMI0002.0017 treated with carbazolating agents. Der neue Farbstoff ist ein dunkles Pulver, das sich in konzentrierter Schwefelsäure mit rötlichbraimer Farbe löst und Baumwolle aus rotbrauner Küpe in schwärzlichen Braun tönen färbt. The new dye is a dark powder that dissolves in concentrated sulfuric acid with a reddish brown color and dyes cotton from a reddish brown vat in blackish brown tones.
CH263847D 1946-03-29 1946-03-29 Process for the production of a vat dye. CH263847A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH257722T 1946-03-29
CH263847T 1946-03-29

Publications (1)

Publication Number Publication Date
CH263847A true CH263847A (en) 1949-09-15

Family

ID=25730114

Family Applications (1)

Application Number Title Priority Date Filing Date
CH263847D CH263847A (en) 1946-03-29 1946-03-29 Process for the production of a vat dye.

Country Status (1)

Country Link
CH (1) CH263847A (en)

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