AT68973B - Process for the preparation of azo dyes from 2,3-oxynaphthoic acid arylamides. - Google Patents

Process for the preparation of azo dyes from 2,3-oxynaphthoic acid arylamides.

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Publication number
AT68973B
AT68973B AT68973DA AT68973B AT 68973 B AT68973 B AT 68973B AT 68973D A AT68973D A AT 68973DA AT 68973 B AT68973 B AT 68973B
Authority
AT
Austria
Prior art keywords
preparation
oxynaphthoic acid
azo dyes
oxynaphthoic
acid arylamides
Prior art date
Application number
Other languages
German (de)
Original Assignee
Griesheim Elektron Chem Fab
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 Griesheim Elektron Chem Fab filed Critical Griesheim Elektron Chem Fab
Application granted granted Critical
Publication of AT68973B publication Critical patent/AT68973B/en

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

Description

  

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 EMI2.1 
 Lichtechtheit. 



   Erzeugung des Farbstoffes auf der Faser :
Die Ware wird mit einer 2,3-Oxynaphtoesäureanilidlösung, wie sie im Beispiel 1 angegeben ist, imprägniert und in folgendem Färbebad gefärbt :
Eine aus    22'3   Teilen 1-Aminoanthrachinon hergestellte Diazolösung wird mit kaltem Wasser auf 1 l aufgefüllt und mit 120   cm essigsaurem   Natron 1 : 1 abgestumpft. Man erhält so ein leuchtendes Rot, ebenfalls von hervorragender Seifen-und Lichtechtheit. 



   Beispiel III. 



   Die Tetrazolösung aus    23-8 Teilen   1.   5-Diaminoanthrachinon   fliesst in eine   natronalkalische   Lösung von 54 Teilen 2,3-Oxynaphtoesäureanilid, welche mit soviel Soda versetzt ist, dass das   Kombinationsgemisch   am Schluss der Kupplung neutral reagiert. Der nach Beendigung der Kombination abfiltrierte und gut gewaschene Farbstoff wird vorteilhaft in Pastenform verwendet. In trockenem Zustande bildet er ein blaustichig bordeauxgefärbtes Pulver, dessen   Lösung in konzentrierter Schwefelsäure braunviolett   ist. Beim Versetzen dieser Lösung mit Wasser fällt der Farbstoff in   bordeauxfarbf-nen Flocken wieder   aus. 



   Bei der   Yerlackung   gibt der Farbstoff blaustichigrote Pigmentfarhen von hervorragender Öl-und Lichtechtheit. 



   Erzeugung des Farbstoffes auf der Faser :
Die Ware wird mit einer 2,3-Oxynaphtoesäureanilidlösung entsprechend Beispiel I imprägniert und in folgendem Färbebad   gefärbt  
Eine aus   23#8   Teilen 1,5-Diaminoanthrachinon hergestellte Diazolösung wird mit kaltem Wasser auf 1    aufgefüllt   und mit   120c' essigsaurem Natron   1 : 1 abgestumpft. Man erhält so ein tiefes blaustichiges Rot von ebenfalls hervorragender Seifen-und Lichtechtheit. 



   In gleicher Weise gelingt die Kombination mit anderen   Diazoverbindungen der Anthra-     chinonreihe0  
An Stelle von 2. 3-Oxynaphtoesäureanilid   kann man seine Homologen, wie die 2. 3-Oxy-   naphtoesäuretoluide, oder seine Substitutionsprodukte wie die 2. 3-0xynaphtoesiiurechlorallllidp oder die 2. 3-Oxynaphtoesäurenitranilide verwenden.



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 EMI2.1
 Lightfastness.



   Generation of the dye on the fiber:
The goods are impregnated with a 2,3-oxynaphthoic anilide solution, as indicated in Example 1, and dyed in the following dye bath:
A diazo solution prepared from 22'3 parts of 1-aminoanthraquinone is made up to 1 l with cold water and blunted 1: 1 with 120 cm of sodium acetate. This gives a bright red, likewise of excellent soap and lightfastness.



   Example III.



   The tetrazo solution of 23-8 parts of 1.5-diaminoanthraquinone flows into a sodium-alkaline solution of 54 parts of 2,3-oxynaphthoic anilide, which is mixed with enough soda that the combination mixture reacts neutrally at the end of the coupling. The dye, which is filtered off and well washed after the end of the combination, is advantageously used in paste form. When dry it forms a bluish-tinged burgundy-colored powder, the solution of which in concentrated sulfuric acid is brown-violet. When this solution is mixed with water, the dye precipitates again in bordeaux-colored flakes.



   In the case of varnishing, the dye gives bluish-tinged pigments of excellent oil and lightfastness.



   Generation of the dye on the fiber:
The goods are impregnated with a 2,3-oxynaphthoic anilide solution according to Example I and dyed in the following dye bath
A diazo solution prepared from 23 # 8 parts of 1,5-diaminoanthraquinone is made up to 1 with cold water and blunted 1: 1 with 120 ° acetic acid sodium bicarbonate. In this way, a deep blue-tinged red is obtained which is likewise excellent in soap and lightfastness.



   Combination with other diazo compounds of the anthrachinone series0 succeeds in the same way
Instead of 2. 3-oxynaphthoic acid anilide, one can use its homologues, such as the 2nd 3-oxynaphthoic acid toluids, or its substitution products such as the 2nd 3-oxynaphthoic acid chlorallide or the 2nd 3-oxynaphthoic acid nitranilide.

 

Claims (1)

PATENTANSPRUCH : EMI2.2 PATENT CLAIM: EMI2.2
AT68973D 1913-09-19 1914-04-30 Process for the preparation of azo dyes from 2,3-oxynaphthoic acid arylamides. AT68973B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE68973X 1913-09-19

Publications (1)

Publication Number Publication Date
AT68973B true AT68973B (en) 1915-06-10

Family

ID=5634695

Family Applications (1)

Application Number Title Priority Date Filing Date
AT68973D AT68973B (en) 1913-09-19 1914-04-30 Process for the preparation of azo dyes from 2,3-oxynaphthoic acid arylamides.

Country Status (1)

Country Link
AT (1) AT68973B (en)

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