CH185151A - Process for the production of a vat dye. - Google Patents

Process for the production of a vat dye.

Info

Publication number
CH185151A
CH185151A CH185151DA CH185151A CH 185151 A CH185151 A CH 185151A CH 185151D A CH185151D A CH 185151DA CH 185151 A CH185151 A CH 185151A
Authority
CH
Switzerland
Prior art keywords
vat dye
production
dye
aminoanthraquinone
parts
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 CH185151A publication Critical patent/CH185151A/en

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  Verfahren zur Herstellung eines     llüpenfarbstoffes.       Es wurde gefunden, dass man einen wert  vollen     güpenfarbstoff    erhält, wenn man     a-          Aminoanthrachinon    mit einer Verbindung der  Formel  
EMI0001.0005     
    kondensiert, worin X einen bei der Umsetzung  sich abspaltenden Rest bedeutet.  



  Zur Herstellung des Farbstoffes kann man  entweder     a-Aminoanthrachinon    mit dem Chlo  rid der 2 -     Oxy    - 3 -     methylbenzolcarbonsäure     (zweckmässig in Gegenwart eines Verdünnungs  mittels) behandeln, oder auf ein Gemisch von       a-Aminoanthrachinon        mitder        2-Oxy-3-methyl-          benzolcarbonsäure    in einem geeigneten Ver  dünnungsmittel ein wasserentziehendes Mittel,  z. B.     Thionylchlorid    oder     Phosphoroxycblorid,     einwirken lassen. Als Verdünnungsmittel kom-         men    z. B.

   Nitrobenzol oder     o-Dichlorbenzol    in  Betracht.  



  Der     Farbstoff    ist sehr leicht     verküpbar          und    färbt Wolle in sehr klaren, gleichmässi  gen, gelben Tönen, die sich durch hervor  ragende Licht-,     Dekatur-    und Waschechtheit  auszeichnen.    <I>Beispiel:</I>  223 Teile     a-Aminoantbrachinon    und<B>170</B>  Teile     2-Oxy-3-methylbenzol-l-carbonsäure     werden in 4000 Teile technisches     o-Dichlor-          benzol    eingetragen.

   Dann lässt man bei 60  bis<B>700</B> C während etwa 2 Stunden 140 Teile       Thionylchlorid        zutropfen.    Man erhitzt dann  langsam zum Sieden und lässt nach etwa  2 Stunden erkalten, wobei der     Farbstoff    in  gelben Nadeln auskristallisiert. Er wird ab  filtriert, ausgewaschen und getrocknet. In  konzentrierter Schwefelsäure löst er sich mit  oranger Farbe; beim Eingiessen der Lösung  in Wasser fällt er in Form hellgelber Flocken      aus. Auf Wolle erhält man aus milde alkali  scher     güpe    ein sehr klares,     grünstichiges    Gelb  von hervorragender     Dekatur-,    Wasch- und  Lichtechtheit.



  Process for the production of a lip dye. It has been found that a valuable high quality dye is obtained if a-aminoanthraquinone is used with a compound of the formula
EMI0001.0005
    condensed, in which X is a radical which is split off during the reaction.



  To prepare the dye, you can either treat a-aminoanthraquinone with the chloride of 2 - oxy - 3 - methylbenzenecarboxylic acid (conveniently in the presence of a diluent), or with a mixture of a-aminoanthraquinone with 2-oxy-3-methylbenzenecarboxylic acid in a suitable diluent Ver a dehydrating agent such. B. Thionyl chloride or Phosphoroxycblorid allow to act. As a diluent come z. B.

   Nitrobenzene or o-dichlorobenzene into consideration.



  The dye is very easy to knead and dyes wool in very clear, uniform, yellow tones, which are characterized by excellent fastness to light, decatur and washing. <I> Example: </I> 223 parts of a-aminoantbrachinone and <B> 170 </B> parts of 2-oxy-3-methylbenzene-1-carboxylic acid are introduced into 4000 parts of technical grade o-dichlorobenzene.

   140 parts of thionyl chloride are then added dropwise at 60 to 700 ° C. over a period of about 2 hours. The mixture is then slowly heated to the boil and allowed to cool after about 2 hours, the dye crystallizing out in yellow needles. It is filtered off, washed and dried. It dissolves in concentrated sulfuric acid with an orange color; when the solution is poured into water it precipitates in the form of light yellow flakes. On wool, a very clear, greenish yellow of excellent decatur, washing and lightfastness is obtained from mildly alkaline shear güpe.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Küpen- farbatoffes, dadurch gekennzeichnet, dass man a-Aminoanthrachinon mit einer Verbindung der Formel EMI0002.0007 kondensiert, worin g einen bei der Umsetzung sich abspaltenden Rest bedeutet. Der neue Küpenfarbstoff färbt Wolle in sehr klaren, gleichmässigen, gelben Farbtönen von hervorragender Dekatur-, Wasch- und Lichtechtheit. PATENT CLAIM: Process for producing a vat dye, characterized in that a-aminoanthraquinone is mixed with a compound of the formula EMI0002.0007 condensed, in which g is a radical which is split off during the reaction. The new vat dye dyes wool in very clear, even, yellow shades of excellent decatur, washing and lightfastness.
CH185151D 1934-07-06 1935-06-07 Process for the production of a vat dye. CH185151A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE185151X 1934-07-06

Publications (1)

Publication Number Publication Date
CH185151A true CH185151A (en) 1936-07-15

Family

ID=5719308

Family Applications (1)

Application Number Title Priority Date Filing Date
CH185151D CH185151A (en) 1934-07-06 1935-06-07 Process for the production of a vat dye.

Country Status (1)

Country Link
CH (1) CH185151A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3398968A (en) * 1965-02-26 1968-08-27 Mutzhas Maximilian Friedrich Ski having tensioning means to change the flexibility of the ski

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3398968A (en) * 1965-02-26 1968-08-27 Mutzhas Maximilian Friedrich Ski having tensioning means to change the flexibility of the ski

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