CH202165A - Process for the preparation of a chromating dye. - Google Patents

Process for the preparation of a chromating dye.

Info

Publication number
CH202165A
CH202165A CH202165DA CH202165A CH 202165 A CH202165 A CH 202165A CH 202165D A CH202165D A CH 202165DA CH 202165 A CH202165 A CH 202165A
Authority
CH
Switzerland
Prior art keywords
dye
preparation
chromating
oxybenzene
acid
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellsc Farbenindustrie
Original Assignee
Ig Farbenindustrie Ag
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 Ig Farbenindustrie Ag filed Critical Ig Farbenindustrie Ag
Publication of CH202165A publication Critical patent/CH202165A/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
    • C09B25/00—Quinophthalones

Landscapes

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

Description

  

      Zusatzpatent    zum     Hauptpatent    Nr.<B>197590.</B>    Verfahren zur Darstellung eines     Chromierungsfarbstoffes.       Gegenstand dieses Zusatzpatentes ist ein  Verfahren     zurDarstellung    eines     Ohromierungs-          farbstoffes,    welches dadurch gekennzeichnet  ist, dass man     5-Oxybenzol-1.2.4-tricarbon-          säureanhydrid    mit     2.6-Dimethylchinolin    kon  densiert und das so erhaltene Produkt mit  einem     sulfierend    wirkenden Mittel behandelt.

    <I>Beispiel:</I>  16 Gewichtsteile 2. 6 -     Dimethylebinolin,     21 Gewichtsteile     5-Oxytrimellithsäureanhy-          drid    und 14 Gewichtsteile Chlorzink werden  bei 200-210 o C 5 Stunden verschmolzen.  



  Die erkaltete und pulverisierte Schmelze  wird     finit    etwa 500 Gewichtsteilen etwa 2     %-          iger    Salzsäure aufgekocht, der feste Rück  stand wird abgesaugt, gegen Kongopapier  neutral gewaschen und getrocknet. Dann wird  das so erhaltene Produkt aus siedendem, tech  nischen     Chinolin    umkristallisiert und so als  rein gelbe Substanz erhalten, die sich in kon  zentrierter Schwefelsäure mit roter Farbe, in         Sodalösung    gelb und in verdünnter Natron  lauge orangegelb löst.

   Die Substanz hat fol  gende Konstitution  
EMI0001.0019     
    Die     Sulfierung    geschieht durch Erhitzen mit  der 20fachen Gewichtsmenge 65     o/oigem        Oleum     auf 140 o C während ungefähr 3 Stunden.  Man verdünnt mit dem gleichen Volumen  konzentrierter Schwefelsäure, giesst auf 500  Teile Eis, saugt die gelbe, gelatinöse Verbin  dung ab und reinigt sie durch     Aussalzen    aus  heisser, wässriger Lösung.  



  Die so erhaltene     Farbstoffmonosulfosäure     stellt ein orangegelbes Pulver dar, das die  Faser     aus    saurer Lösung sehr gleichmässig  und leuchtend gelb färbt.



      Additional patent to main patent no. <B> 197590. </B> Process for the preparation of a chromating dye. The subject of this additional patent is a process for the preparation of an odorization dye, which is characterized in that 5-oxybenzene-1,2,4-tricarboxylic anhydride is condensed with 2,6-dimethylquinoline and the product thus obtained is treated with a sulphurizing agent.

    <I> Example: </I> 16 parts by weight of 2.6-dimethylbinoline, 21 parts by weight of 5-oxytrimellitic anhydride and 14 parts by weight of zinc chloride are fused at 200-210 ° C. for 5 hours.



  The cooled and powdered melt is finitely boiled up to about 500 parts by weight of about 2% hydrochloric acid, the solid residue is suctioned off, washed neutral against Congo paper and dried. The product thus obtained is then recrystallized from boiling technical quinoline and thus obtained as a pure yellow substance which dissolves in concentrated sulfuric acid with a red color, yellow in soda solution and orange-yellow in dilute sodium hydroxide solution.

   The substance has the following constitution
EMI0001.0019
    The sulfonation takes place by heating with 20 times the weight of 65% oleum to 140 ° C. for about 3 hours. It is diluted with the same volume of concentrated sulfuric acid, poured onto 500 parts of ice, the yellow, gelatinous compound is filtered off with suction and purified by salting out a hot, aqueous solution.



  The dye monosulfonic acid obtained in this way is an orange-yellow powder which colors the fibers from acidic solution very evenly and bright yellow.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines Chromie- rungsfarbstoffes, dadurch gekennzeichnet, dass man 5-Oxybenzol-1.2.4-tricarbonsäurearrhy- drid mit 2 . 6 - Dimethylchirrolin kondensiert und das so erhaltene Produkt mit einem stil- fierend wirkenden Mittel behandelt. Die so erhaltene Farbstoffmonosulfosäure bildet ein orangegelbes Pulver, das die tie rische Faser aus saurem Bade in sehr gleich mässigen und leuchtend gelben Tönen färbt. <B>UNTERANSPRÜCHE:</B> 1. PATENT CLAIM: Process for the preparation of a chromating dye, characterized in that 5-oxybenzene-1,2,4-tricarboxylic acid arrhydride with 2. 6 - Dimethylchirroline condensed and the product thus obtained treated with a styling agent. The dye monosulphonic acid obtained in this way forms an orange-yellow powder which colors the tiaric fiber from an acid bath in very uniform and bright yellow tones. <B> SUBClaims: </B> 1. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man die Kondensation durch Schmelzern bei 200 - 2101 C in Gegenwart von wasserfreiem Zinkchlorid durchführt. 2. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man das Kondensa tionsprodukt aus 5-Oxybenzol-1.2.4-tr-i- carbonsäureanhydrid und 2 . 6 - Dimethyl- chinolin mit 65 o/oigern Oleum etwa 3 Stun den lang bei 140<B>0</B> C erhitzt. Process according to patent claim, characterized in that the condensation is carried out by melting at 200-2101 C in the presence of anhydrous zinc chloride. 2. The method according to claim, characterized in that the condensation product of 5-oxybenzene-1.2.4-tr-i-carboxylic anhydride and 2. 6 - Dimethylquinoline with 65% oleum heated for about 3 hours at 140 ° C.
CH202165D 1936-01-29 1937-01-22 Process for the preparation of a chromating dye. CH202165A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202165X 1936-01-29
CH197590T 1937-01-22

Publications (1)

Publication Number Publication Date
CH202165A true CH202165A (en) 1938-12-31

Family

ID=25723023

Family Applications (1)

Application Number Title Priority Date Filing Date
CH202165D CH202165A (en) 1936-01-29 1937-01-22 Process for the preparation of a chromating dye.

Country Status (1)

Country Link
CH (1) CH202165A (en)

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