AT44468B - Process for the preparation of red monoazo dyes which are particularly suitable for the production of color lakes. - Google Patents

Process for the preparation of red monoazo dyes which are particularly suitable for the production of color lakes.

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Publication number
AT44468B
AT44468B AT44468DA AT44468B AT 44468 B AT44468 B AT 44468B AT 44468D A AT44468D A AT 44468DA AT 44468 B AT44468 B AT 44468B
Authority
AT
Austria
Prior art keywords
preparation
production
particularly suitable
monoazo dyes
color lakes
Prior art date
Application number
Other languages
German (de)
Original Assignee
Badische Anilin & Sodafabrik
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 Badische Anilin & Sodafabrik filed Critical Badische Anilin & Sodafabrik
Application granted granted Critical
Publication of AT44468B publication Critical patent/AT44468B/en

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  • Paints Or Removers (AREA)
  • Paper (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Verfahren zur Darstellung von roten zur Herstellung von Farblacken besonders geeigneten   Monoazofarbsto1fen.   
 EMI1.1 
 mit   -Naphtol erhalten worden (vergl.   die deutschen   Pateutschriften   Nr. 145908 und   Nr.     17537s)   finden wegen ihrer schonen orangen Nuance, guten   Fällbarkeit   und   L) eckkraft   und mässigen Anforderungen entsprechenden Lichtechtheit in der Fabrikation der Farblack   ausgedehnte   Anwendung. 



     Ms   hat sich nun gezeigt, dass man einen Farbstoff von ähnlichen guten Eigenschaften, aber ganz erheblich grösserer Lichtechtheit erhält, wenn man an Stelle der genannten Chlor- 
 EMI1.2 
 
 EMI1.3 
 verwendet. Auch die Kombinationen der Diazoverbindung aus dieser Säure mit   &num;-naphtol-   sulfosäuren unterscheiden sich vorteilhaft durch ihre grössere Lichtechtheit von den bisher 
 EMI1.4 
 

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



   <Desc / Clms Page number 1>
 



  Process for the preparation of red monoazo dyes which are particularly suitable for the production of colored lakes.
 EMI1.1
 obtained with -Naphtol (cf. the German patent documents No. 145908 and No. 17537s) are widely used in the manufacture of colored lacquers because of their beautiful orange nuance, good precipitability and opacity and lightfastness corresponding to moderate requirements.



     It has now been shown that a dye with similar good properties, but considerably greater lightfastness, is obtained if, instead of the chlorine-
 EMI1.2
 
 EMI1.3
 used. The combinations of the diazo compound from this acid with naphthol sulfonic acids also advantageously differ from those hitherto in that they are more lightfast
 EMI1.4
 

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

Claims (1)

**WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT44468D 1908-11-26 1909-03-10 Process for the preparation of red monoazo dyes which are particularly suitable for the production of color lakes. AT44468B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE44468X 1908-11-26

Publications (1)

Publication Number Publication Date
AT44468B true AT44468B (en) 1910-10-25

Family

ID=5624677

Family Applications (1)

Application Number Title Priority Date Filing Date
AT44468D AT44468B (en) 1908-11-26 1909-03-10 Process for the preparation of red monoazo dyes which are particularly suitable for the production of color lakes.

Country Status (1)

Country Link
AT (1) AT44468B (en)

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