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CH138601A - Process for the preparation of an azo dye. - Google Patents

Process for the preparation of an azo dye.

Info

Publication number
CH138601A
CH138601A CH138601DA CH138601A CH 138601 A CH138601 A CH 138601A CH 138601D A CH138601D A CH 138601DA CH 138601 A CH138601 A CH 138601A
Authority
CH
Switzerland
Prior art keywords
azo dye
preparation
dye
pyrazolone
methyl
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 CH138601A publication Critical patent/CH138601A/en

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

Description

  

  Verfahren zur     Herstellung    eines     Azofar        bstoffes.       Es wurde gefunden, dass man einen wert  vollen     Azofarbstoff    erhält, wenn man die       Diazoverbindung    des     Anthranilsäure-n-butyl-          esters    mit     1-(4'-Sulfophenyl)-3-methyl-5-pyra-          zolon    kombiniert. Der neue Farbstoff liefert  auf Wolle gelbe, sehr echte Ausfärbungen und  ist auch als Lackfarbstoff sehr gut geeignet.

         Beispiel:     Die     wässrige    Lösung der in der üblichen  Weise erhaltenen     Diazoverbindung    von 29,1  Teilen     Anthranilsäure-n-butylestersulfat    lässt  man in eine     wässrige    Lösung von 25,4 Teilen       1-(4'-Sulfopheiiyl)-3-methyl-5-pyrazolon    und  150 Teilen wasserfreier Soda einfliessen. Nach    etwa 2 bis 3 Stunden langem Rühren wird  der entstandene Farbstoff abgesaugt.



  Process for the production of an azo dye. It has been found that a valuable azo dye is obtained if the diazo compound of n-butyl anthranilic acid is combined with 1- (4'-sulfophenyl) -3-methyl-5-pyrazolone. The new dye provides yellow, very real colorations on wool and is also very suitable as a paint dye.

         Example: The aqueous solution of the diazo compound obtained in the usual manner of 29.1 parts of anthranilic acid n-butyl ester sulfate is left in an aqueous solution of 25.4 parts of 1- (4'-sulfopheiiyl) -3-methyl-5-pyrazolone and Pour in 150 parts of anhydrous soda. After stirring for about 2 to 3 hours, the resulting dye is filtered off with suction.

Claims (1)

PATENTANSPRUCH Verfahren zur Herstellung eines Azofarb- stoffes, dadurch gekennzeichnet, dass man die Diazoverbindung des Anthranilsäui-e-n-butyl- esters mit 1-(4'-Sulfophenyl)-3-methyl-5-pyra- zolon kombiniert. Der neue Farbstoff liefert auf Wolle gelbe, sehr echte Ausfärbungen und ist auch als Lackfarbstoff sehr gut ge eignet. PATENT CLAIM Process for the production of an azo dye, characterized in that the diazo compound of the anthranilic acid-e-n-butyl ester is combined with 1- (4'-sulfophenyl) -3-methyl-5-pyrazolone. The new dye provides yellow, very real colorations on wool and is also very suitable as a paint dye.
CH138601D 1927-11-17 1928-10-10 Process for the preparation of an azo dye. CH138601A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE138601X 1927-11-17

Publications (1)

Publication Number Publication Date
CH138601A true CH138601A (en) 1930-03-15

Family

ID=5667377

Family Applications (1)

Application Number Title Priority Date Filing Date
CH138601D CH138601A (en) 1927-11-17 1928-10-10 Process for the preparation of an azo dye.

Country Status (1)

Country Link
CH (1) CH138601A (en)

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