CH232297A - Process for the production of a vat dye. - Google Patents

Process for the production of a vat dye.

Info

Publication number
CH232297A
CH232297A CH232297DA CH232297A CH 232297 A CH232297 A CH 232297A CH 232297D A CH232297D A CH 232297DA CH 232297 A CH232297 A CH 232297A
Authority
CH
Switzerland
Prior art keywords
dye
olive
melt
green
methoxy
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 CH232297A publication Critical patent/CH232297A/en

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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
    • C09B5/2409—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 not provided for in one of the sub groups C09B5/26 - C09B5/62
    • C09B5/2436—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 not provided for in one of the sub groups C09B5/26 - C09B5/62 only nitrogen-containing hetero rings

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

Description

  

      Zusatzpatent    zum Hauptpatent Nr. 228649.    Verfahren zur Herstellung eines     ILüpenfarbstoffes.       Gegenstand dieses Zusatzpatentes ist     ein     Verfahren zur Herstellung eines neuen       Küpenfarbstoffes,    welches     darin    besteht,  dass man die durch Kondensation von 4-Brom-         3-methoxy    -1.8 -     chinoylen-naphtalin    und     1-          Amino-4-methoxy-anthrachinon    erhältliche  Verbindung von der     Zusammensetzung:     
EMI0001.0011     
  
     in     einer        Alkalischmelze    erhitzt.

        Man kann die Schmelze auch in Gegen  wart von     Lösungs-    oder Verdünnungsmitteln,  wie z. B. Äthylalkohol und     Äthanolamin     durchführen.  



  <I>Beispiel:</I>  10 Gewichtsteile der durch Kondensation  von     4-Brom-3-methoxy-1..8-chinoylen-naph-          ta.lin    und     1-Amino-4-metlioxy-anthracliinon    er  hältlichen Verbindung, die ein in konzentrier  ter Schwefelsäure mit blauer Farbe lösliches  dunkelviolettes Pulver darstellt, werden so  lange in einer Schmelze aus 100 Gewichts  teilen     Kaliumhydroxyd,    90     Volumteilen     Äthylalkohol und 10     Volumteilen        Xtlia-          nolamin    am     Rückflusskühler    unter Rüh  ren erhitzt,

   bis eine Probe mit     konz.    Schwe  felsäure nurmehr eine     trübolivbraune    Lösung  ergibt, aus der sich beim Eingiessen in Was  ser der Farbstoff in blauen Flocken als Sul  fat abscheidet. Nach etwa 11/2- bis     ?stündiger     Schmelzdauer gibt man die     Schmelze    in Was  ser. Die zum Teil noch in Form der     Leuko-          verbindung    vorliegende neue Verbindung  wird durch Einleiten von Luft zum Farb-         stoff    oxydiert. Er wird mit heissem Wasser  neutral gewaschen, wobei     entstandene    Neben  produkte mit rotbrauner Farbe in Lösung  gehen.

   Zur vollständigen Entfernung der  letzteren extrahiert man die noch feuchte  Paste mit Alkohol.  



  Der Farbstoff stellt ein dunkelolivgrünes  Pulver dar. Er kristallisiert aus     1-Chlor-          naphtalin    in verfilzten, langen, olivgrünen       Nädelchen,    die sich in konzentrierter Schwe  felsäure mit gelbbrauner Farbe lösen. Beim  Eingiessen dieser Lösung in Wasser fallen  violette Flocken aus. Der Farbstoff färbt       Baumwolle    aus     grünoliver        Küpe    in     Khaki-          tönen    von guten     Echtheiten.  



      Additional patent to main patent no. 228649. Process for the production of an I-pulp dye. The subject of this additional patent is a process for the production of a new vat dye, which consists in removing the compound obtainable by condensation of 4-bromo-3-methoxy -1.8-quinoylen-naphthalene and 1-amino-4-methoxy-anthraquinone from the composition :
EMI0001.0011
  
     heated in an alkali melt.

        You can also use the melt in the presence of solvents or diluents, such as. B. Perform ethyl alcohol and ethanolamine.



  <I> Example: </I> 10 parts by weight of the compound obtainable by condensation of 4-bromo-3-methoxy-1..8-quinoylen-naphtha.lin and 1-amino-4-metlioxy-anthracliinone which represents a dark violet powder soluble in concentrated sulfuric acid with a blue color, are heated in a melt of 100 parts by weight of potassium hydroxide, 90 parts by volume of ethyl alcohol and 10 parts by volume of xtlienolamine on the reflux condenser with stirring,

   until a sample with conc. Sulfuric acid only results in a cloudy olive-brown solution, from which, when poured into water, the dye is deposited in blue flakes as sulphate. After about 11/2 to 1 hour melting time, the melt is poured into water. The new compound, some of which is still in the form of the leuco compound, is oxidized to the dye by the introduction of air. It is washed neutral with hot water, with the resulting by-products dissolving with a red-brown color.

   To completely remove the latter, the paste, which is still moist, is extracted with alcohol.



  The dye is a dark olive-green powder. It crystallizes from 1-chloronaphthalene in matted, long, olive-green needles that dissolve in concentrated sulfuric acid with a yellow-brown color. When this solution is poured into water, purple flakes precipitate. The dye dyes cotton from a green-olive vat in khaki tones with good fastness properties.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Küpenfarbstoffes, dadurch gekennzeichnet, dass man die durch Kondensation von 4-Brom- 3-methoxy-1.8-chinoyien-naplitalin und 1- Amino - 4 - methoxy-anthrachinon erhältliche Verbindung von der Zusammensetzung: EMI0002.0035 in einer Alkalischmelze erhitzt. Der Farbstoff stellt ein dunkelolivgrü nes Pulver dar. PATENT CLAIM: Process for the production of a new vat dye, characterized in that the compound obtainable by condensation of 4-bromo-3-methoxy-1.8-quinoyien-naplitalin and 1- amino-4-methoxy-anthraquinone is obtained from the composition: EMI0002.0035 heated in an alkali melt. The dye is a dark olive green powder. Er kristallisiert aus 1-Chlor- naphtalin in verfilzten, langen, olivgrünen Nädelchen, die sich in konzentrierter Schwe- felsäure mit gelbbrauner Farbe lösen. Beim Eingiessen dieser Lösung in Wasser, fallen violette Flocken aus. Der Farbstoff färbt Baumwolle aus grünoliver Küpe in Khaki- tönen von guten Echtheiten. UNTERANSPRtrCHE 1. It crystallizes from 1-chloronaphthalene in matted, long, olive-green needles that dissolve in concentrated sulfuric acid with a yellow-brown color. When this solution is poured into water, purple flakes precipitate. The dye dyes cotton from a green-olive vat in khaki tones with good fastness properties. SUBCERTAIN 1. Verfahren nach Patentanspruch, da durch gekennzeichnet, dass man der Alkali schmelze noch Lösungsmittel zusetzt. <B>1</B> da <B>.</B> Verfahren nach Patentanspruchl durcb- gekennzeichnet, dass man der Alkali schmelze noch Verdünnungsmittel zusetzt. 3. Verfahren nach Patentanspruch, da durch gekennzeichnet, dass man den Aus gangsstoff in einer Schmelze von Kalium- io hydroxyd in Gegenwart von Äthylalkohol und Äthanolamin am Rückflusskühler erhitzt. Process according to claim, characterized in that solvent is also added to the alkali melt. <B> 1 </B> da <B>. </B> The method according to patent claims characterized by adding a diluent to the alkali melt. 3. The method according to claim, characterized in that the starting material is heated from the reflux condenser in a melt of potassium io hydroxide in the presence of ethyl alcohol and ethanolamine.
CH232297D 1941-08-06 1942-07-21 Process for the production of a vat dye. CH232297A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE232297X 1941-08-06
CH228649T 1942-07-21

Publications (1)

Publication Number Publication Date
CH232297A true CH232297A (en) 1944-05-15

Family

ID=25727235

Family Applications (1)

Application Number Title Priority Date Filing Date
CH232297D CH232297A (en) 1941-08-06 1942-07-21 Process for the production of a vat dye.

Country Status (1)

Country Link
CH (1) CH232297A (en)

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