AT72640B - Process for the preparation of mordant dyes. - Google Patents

Process for the preparation of mordant dyes.

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Publication number
AT72640B
AT72640B AT72640DA AT72640B AT 72640 B AT72640 B AT 72640B AT 72640D A AT72640D A AT 72640DA AT 72640 B AT72640 B AT 72640B
Authority
AT
Austria
Prior art keywords
preparation
mordant dyes
dyes
acidylaminophenol
mordant
Prior art date
Application number
Other languages
German (de)
Original Assignee
Anilin Fabrikation 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 Anilin Fabrikation Ag filed Critical Anilin Fabrikation Ag
Application granted granted Critical
Publication of AT72640B publication Critical patent/AT72640B/en

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Description

  

   <Desc/Clms Page number 1> 
 



  Verfahren zur Darstellung von Beizenfarbstoffen. 



   Aus den deutschen Patentschriften Nr. 146265 und 147530 ist bekannt, dass sich   4-Acidylaminophenol   und seine Substitutionsprodukte mit freier 2-Stellung mit Diazoverbindungen kombinieren lassen. Es werden dort Kombinationen mit Diazonaphtalinsulfosäuren beschrieben, deren nachchromiertp Färbungen grau sind. 



   Wie nun gefunden wurde, entstehen durch Kombination von 4-Acidylaminophenol und seinen Substitutionsprodukten mit   diazotierter Pikramiasäure   wertvolle Beizenfarbstoffe, deren Färbungen sich durch hervorragende Wasch-, Walk-, Potting-und Lichtechtheit auszeichnen und hierin die obengenannten Farbstoffe erheblich übertreffen. Die Nuancen der   Chromlacke   sind in der Regel olive, in einzelnen Fällen braun. Vor den Farbstoffen der deutschen Patentschrift Nr. 252915 aus   Pikraminsäure   und 4-Acidyl-   amino-l-naphtolen,   die ihrer ungenügenden Löslichkeit wegen keinen Eingang in die Technik gefunden haben, ist den neuen Farbstoffen ihre gute   Löslichkeit     nachzurühmen.   



   Beispiel :    19'9 Teile Pikramins l1re   werden wie üblich diazotiert und bei 100 mit einer   sodaalkalischen Lösung von 15@@ Teilen 4-Acetylaminophenol vereinigt. Nach   beendeter Kombination wärmt mau auf 600 an und filtriert den Farbstoff ab. Er bildet getrocknet ein schwarzes Pulver, das sich in Wasser mit brauner Farbe   lost. Mit Hilfo     \on Chrombeize   wird Wolle olive   gefärbt.   

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



   <Desc / Clms Page number 1>
 



  Process for the preparation of mordant dyes.



   It is known from German Patent Nos. 146265 and 147530 that 4-acidylaminophenol and its substitution products with a free 2-position can be combined with diazo compounds. Combinations with diazonaphthalene sulfonic acids are described there, the post-chromed colorations of which are gray.



   As has now been found, the combination of 4-acidylaminophenol and its substitution products with diazotized picramic acid gives rise to valuable mordant dyes, the colorations of which are distinguished by excellent fastness to washing, fulling, potting and light and in this respect considerably exceed the abovementioned dyes. The nuances of the chrome lacquers are usually olive, in some cases brown. Before the dyes of German patent specification No. 252915 made from picric acid and 4-acidylamino-1-naphthols, which have not found their way into technology because of their inadequate solubility, the good solubility of the new dyes is to be praised.



   Example: 19.9 parts of picramins are diazotized as usual and combined at 100 with a soda-alkaline solution of 15 parts of 4-acetylaminophenol. After the combination is complete, warm up to 600 and filter off the dye. When dried, it forms a black powder that dissolves in water with a brown color. With Hilfo \ on Chrombeize wool is dyed olive.

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

Claims (1)

PATENT-ANSPRUCH : Verfahren zur Darstellung on Beizenfarbstoffen, dadurch gekennzeichnet, dass diazotierte Pikraminsaure mit 4-Acidylaminophenol oder seinen Substitutionsprodukten kombiniert wird. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: Process for the preparation of mordant dyes, characterized in that diazotized picric acid is combined with 4-acidylaminophenol or its substitution products. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT72640D 1914-12-18 1915-11-05 Process for the preparation of mordant dyes. AT72640B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE72640X 1914-12-18

Publications (1)

Publication Number Publication Date
AT72640B true AT72640B (en) 1916-10-25

Family

ID=5636210

Family Applications (1)

Application Number Title Priority Date Filing Date
AT72640D AT72640B (en) 1914-12-18 1915-11-05 Process for the preparation of mordant dyes.

Country Status (1)

Country Link
AT (1) AT72640B (en)

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