AT58406B - Process for the representation of etchable azo dyes on the fiber. - Google Patents

Process for the representation of etchable azo dyes on the fiber.

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Publication number
AT58406B
AT58406B AT58406DA AT58406B AT 58406 B AT58406 B AT 58406B AT 58406D A AT58406D A AT 58406DA AT 58406 B AT58406 B AT 58406B
Authority
AT
Austria
Prior art keywords
fiber
etchable
azo dyes
representation
diamines
Prior art date
Application number
Other languages
German (de)
Original Assignee
Hoechst 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 Hoechst Ag filed Critical Hoechst Ag
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Publication of AT58406B publication Critical patent/AT58406B/en

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Description

  

   <Desc/Clms Page number 1> 
 



  Verfahren zur Darstellung von ätzbaren Azofarbstoffen auf der Faser. 



   Es wurde gefunden, dass man wertvolle Färbungen auf Baumwolle erhält, wenn man die Diazoverbindungen von halogenierten   Aminobenzolsulfosäuren   mit na-Diaminen kuppelt und die so erhaltenen Produkte mit Nitrodiazobenzol auf der Faser entwickelt. Die Färbungen zeichnen sich durch kräftige und klare, gelbbraune bis rotbraune. zum Teil   kupferähnliche   Nuancen aus ; sie sind sehr   gut ätzbar, wasch-und säureecht ;   auch die Lichtechtheit ist vorzüglich. 



   Beispiel. 
 EMI1.1 
 gestelltes, auf ein Liter gebrachtes Bad passieren, welches 14   9 p-Nitrani1in   und 40 g kristallisiertes Natriumazetat gelöst   enthält.   Nach dem Waschen, Seifen und Trocknen erhält man ein kräftiges Rotbraun von den angegebenen guten Echtheitseigenschaften. 



   In ganz. analoger Weise werden die Färbungen mit anderen Farbstoffen aus dia-   zotierten     ha) ogenierten Aminohenzo ! sutfosäuren   und m-Diaminen hergestellt. 



   Als halogenierte Aminobenzolsulfosäuren kommen z. B. ausser der genannten noch in Betracht : die 4-Chloranilin-3-sulfosäure, die 3-Brom-2-toluidin-5-sulfosäure. die 2.   5-Dichlor-   anilin-4-sulfosäure. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



  Process for the representation of etchable azo dyes on the fiber.



   It has been found that valuable dyeings on cotton are obtained if the diazo compounds of halogenated aminobenzene sulfonic acids are coupled with na-diamines and the products thus obtained are developed on the fiber with nitrodiazobenzene. The colors are strong and clear, yellow-brown to red-brown. partly copper-like nuances; they are very easy to etch, washable and acid-proof; the lightfastness is also excellent.



   Example.
 EMI1.1
 Pass the provided bath made up to one liter, which contains 14 9 p-nitroanine and 40 g of crystallized sodium acetate dissolved. After washing, soaping and drying, a strong reddish brown with the stated good fastness properties is obtained.



   In whole. in an analogous manner, the dyeings with other dyes from diazotized ha) ogenated Aminohenzo! sutfoic acids and m-diamines.



   As halogenated aminobenzene sulfonic acids come z. B. in addition to the mentioned: 4-chloroaniline-3-sulfonic acid, 3-bromo-2-toluidine-5-sulfonic acid. 2. 5-dichloro-aniline-4-sulfonic acid.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

 

Claims (1)

PATENT-ANSPRUCH : Verfahren zur Darstellung von ätzbaren Azofarbstoffen auf der Faser, dadurch gekennzeichnet, dass man die aus diazotierten halogenierten Aminobenzolsulfosäuren mit m-Diaminen EMI1.2 **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: Process for the preparation of etchable azo dyes on the fiber, characterized in that the diazotized halogenated aminobenzene sulfonic acids with m-diamines EMI1.2 ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT58406D 1910-12-12 1911-10-21 Process for the representation of etchable azo dyes on the fiber. AT58406B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE58406X 1910-12-12

Publications (1)

Publication Number Publication Date
AT58406B true AT58406B (en) 1913-03-26

Family

ID=5629558

Family Applications (1)

Application Number Title Priority Date Filing Date
AT58406D AT58406B (en) 1910-12-12 1911-10-21 Process for the representation of etchable azo dyes on the fiber.

Country Status (1)

Country Link
AT (1) AT58406B (en)

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