CH186171A - Process for the production of a vat dye. - Google Patents

Process for the production of a vat dye.

Info

Publication number
CH186171A
CH186171A CH186171DA CH186171A CH 186171 A CH186171 A CH 186171A CH 186171D A CH186171D A CH 186171DA CH 186171 A CH186171 A CH 186171A
Authority
CH
Switzerland
Prior art keywords
production
vat
melting point
mol
dye
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 CH186171A publication Critical patent/CH186171A/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
    • C09B57/00—Other synthetic dyes of known constitution
    • C09B57/001—Pyrene dyes

Landscapes

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

Description

  

  Zusatzpatent zum     Hauptpatent        Nr.   <B>182723.</B>    Verfahren zur Herstellung eines     Küpenfarbstoffes.       Es wurde gefunden,     dass    man einen     Küpen_          larbstoff    herstellen kann, wenn man<B>1</B>     Mol          tetrachloriertes        Pyrenchinon    vom Schmelz  punkt<B>350 0</B> mit<B>1</B>     Mol    Anilin umsetzt.  



  Der erhaltene Farbstoff stellt ein dunkel  graugrün gefärbtes Pulver dar, das durch       Umkristallisieren    aus Chlorbenzol in feinen  Nadeln vom Schmelzpunkt<B>285-290 '</B> erhal  ten wird. Es löst sich in konzentrierter  Schwefelsäure mit     olivgrauer    Farbe und färbt  Baumwolle aus gelbgefärbter     Küpe    in echten  grünen Tönen.  



  <I>Beispiel:</I>  40 Teile Anilin,<B>37</B> Teile     Tetrachloppyren-          chinon    vom Schmelzpunkt<B>350'</B> und etwas  Naturkupfer<B>0</B> werden in<B>300</B>     Vol.-Teilen          Tetrachloräthan    suspendiert und<B>30</B> Teile       Kaliumkarbonatzugefügt.    Das Gemisch wird  unter Rühren während 24 Stunden auf 120    bis<B>125'</B> erhitzt. Nach dem Erkalten wird       abgenutscht,    mit Alkohol, Wasser, wieder  mit Alkohol gewaschen und getrocknet.



  Additional patent to main patent no. <B> 182723. </B> Process for the production of a vat dye. It has been found that a vat substance can be produced if <B> 1 </B> mol of tetrachlorinated pyrenquinone with a melting point of <B> 350 0 </B> is reacted with <B> 1 </B> mol of aniline.



  The dye obtained is a dark gray-green colored powder which is obtained by recrystallization from chlorobenzene in fine needles with a melting point of <B> 285-290 '</B>. It dissolves in concentrated sulfuric acid with an olive-gray color and dyes cotton from a yellow-dyed vat in real green tones.



  <I> Example: </I> 40 parts of aniline, <B> 37 </B> parts of tetrachloppyrene quinone with a melting point of <B> 350 '</B> and some natural copper <B> 0 </B> are used in < B> 300 parts by volume of tetrachloroethane suspended and <B> 30 </B> parts of potassium carbonate added. The mixture is heated to 120 to 125 'for 24 hours while stirring. After cooling, it is suction filtered, washed with alcohol, water, again with alcohol and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Küpen- farbstoffes, dadurch gekennzeichnet, dass man <B>1</B> Mol tetrachloriertes Pyrenchinon vom Schmelzpunkt 350 <B>0</B> mit<B>1</B> Mol Anilin umsetzt. Der erhaltene Farbstoff stellt ein dunkel graugrün gefärbtes Pulver dar, das durch Umkristallisieren aus Chlorbenzol in feinen Nadeln vom Schmelzpunkt<B>285-290 0</B> erhal ten wird. PATENT CLAIM: Process for the production of a vat dye, characterized in that <B> 1 </B> mol of tetrachlorinated pyrenquinone with a melting point of 350 <B> 0 </B> is reacted with <B> 1 </B> mol of aniline. The dye obtained is a dark gray-green colored powder which is obtained by recrystallization from chlorobenzene in fine needles with a melting point of 285-290 °. Es löst sich in konzentrierter Schwefelsäure mit olivgrauer Farbe und färbt Baumwolle aus gelbgefärbter Küpe in echten grünen Tönen. It dissolves in concentrated sulfuric acid with an olive-gray color and dyes cotton from a yellow-dyed vat in real green tones.
CH186171D 1934-07-07 1934-07-07 Process for the production of a vat dye. CH186171A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH186171T 1934-07-07
CH182723T 1934-07-07

Publications (1)

Publication Number Publication Date
CH186171A true CH186171A (en) 1936-08-31

Family

ID=25720788

Family Applications (1)

Application Number Title Priority Date Filing Date
CH186171D CH186171A (en) 1934-07-07 1934-07-07 Process for the production of a vat dye.

Country Status (1)

Country Link
CH (1) CH186171A (en)

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