CH147340A - Process for the preparation of a new monoazo dye. - Google Patents

Process for the preparation of a new monoazo dye.

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Publication number
CH147340A
CH147340A CH147340DA CH147340A CH 147340 A CH147340 A CH 147340A CH 147340D A CH147340D A CH 147340DA CH 147340 A CH147340 A CH 147340A
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CH
Switzerland
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blue
preparation
new
dye
red
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German (de)
Inventor
A-G J R Geigy
Original Assignee
Geigy Ag J R
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.)
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Publication date
Application filed by Geigy Ag J R filed Critical Geigy Ag J R
Publication of CH147340A publication Critical patent/CH147340A/en

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      verfahren    zur Darstellung eines neuen     Nonoazofarbstofes.       Es wurde gefunden, dass man einen neuen  wertvollen     Alonoazofarbstoff    erhält, wenn man       diazotierten        4-Chlor,-2-amitrodiphenyläther    mit       p-Tolrrolsulfo-        1-monoätbylamino-8-naphtol-          3,6-disulfosäure    kombiniert. Der neue Farb  stoff stellt ein braunrotes Pulver dar, welches  in Wasser mit blauroter, in konzentrierter  Schwefelsäure mit blauer Farbe löslich ist.

         Er    färbt auf Wolle und Seide ein sehr klares  Blaurot von sehr guter Licht- und     Walk-          echtheit.     



  <I>Beispiel:</I>  Die aus 22 kg     4-Chlor-2-aminodipherryl-          äther    auf gewöhnlichem Wege erhaltene     biazo-          lösung    lässt man in eine wässerige Lösung  von 50,1 kg     p-Toluolsulfo-l-rnorroäthylamino-          8-naphtol-3,6-disulfosäure    in Gegenwart von  <B>25</B> kg Soda und 30 kg Ammoniak (25  /o)  unter Rühren einlaufen. Nach beendeter Kupp-    lang wird aufgewärmt,     ausgesalzen,    filtriert  und getrocknet. Der erhaltene     Farbstoff    bildet  ein braunrotes Pulver, das in Wasser mit  blauroter, in konzentrierter Schwefelsäure mit  blauer Farbe löslich ist.

   Er färbt auf Wolle  und Seide ein sehr klares Blaurot von sehr  guter Licht- und     Walkechtheit.  



      process for the preparation of a new nonoazo dye. It has been found that a new, valuable alonoazo dye is obtained if diazotized 4-chloro, -2-amitrodiphenyl ether is combined with p-tolrolesulfo-1-monoethylamino-8-naphthol-3,6-disulfonic acid. The new dye is a brownish-red powder that is soluble in water with a blue-red color and in concentrated sulfuric acid with a blue color.

         It dyes wool and silk a very clear blue-red with very good lightfastness and milled fastness.



  <I> Example: </I> The biazo solution obtained in the usual way from 22 kg of 4-chloro-2-aminodipherryl ether is immersed in an aqueous solution of 50.1 kg of p-toluenesulfo-1-rnorroethylamino-8- Run in naphthol-3,6-disulfonic acid in the presence of 25 kg of soda and 30 kg of ammonia (25 / o) with stirring. When the cup is over, it is warmed up, salted out, filtered and dried. The dye obtained forms a brownish-red powder which is soluble in water with a blue-red color and in concentrated sulfuric acid with a blue color.

   It dyes wool and silk a very clear blue-red with very good light and milled fastness.

Claims (1)

PATENTANSPR UCI3 Verfahren zur Darstellung eines neuen Morroazofarbstoffes, dadurch gekennzeichnet, dassman diazotierten4-Chlor-2-amirrodiphenyl- äther mit p-Toluolsulfo-l-morroäthylamino-8- naphtol-3,6-disulfosäure kombiniert. Der neue Farbstoff stellt ein braunrotes Pulver dar, das sich in Wasser mit blauroter, in konzentrier ter Schwefelsäure mit blauer Farbe löst. PATENT APPLICATION UCI3 Process for the preparation of a new Morroazo dye, characterized in that diazotized 4-chloro-2-amirrodiphenyl ether is combined with p-toluenesulfo-1-morroethylamino-8-naphthol-3,6-disulfonic acid. The new dye is a brownish-red powder that dissolves in water with a blue-red color, and in concentrated sulfuric acid with a blue color. Er färbt Wolle in sehr klarer, blauroter Nuance von sehr guter Licht und Walkechtheit. It dyes wool in a very clear, blue-red shade of very good lightness and fastness to milled.
CH147340D 1929-05-25 1930-02-18 Process for the preparation of a new monoazo dye. CH147340A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR147340X 1929-05-25
FR40729X 1929-07-04
CH143989T 1929-09-13

Publications (1)

Publication Number Publication Date
CH147340A true CH147340A (en) 1931-05-31

Family

ID=27177160

Family Applications (1)

Application Number Title Priority Date Filing Date
CH147340D CH147340A (en) 1929-05-25 1930-02-18 Process for the preparation of a new monoazo dye.

Country Status (1)

Country Link
CH (1) CH147340A (en)

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