CH184182A - Process for the preparation of an azo dye. - Google Patents

Process for the preparation of an azo dye.

Info

Publication number
CH184182A
CH184182A CH184182DA CH184182A CH 184182 A CH184182 A CH 184182A CH 184182D A CH184182D A CH 184182DA CH 184182 A CH184182 A CH 184182A
Authority
CH
Switzerland
Prior art keywords
azo dye
preparation
parts
dye
oxybenzene
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 CH184182A publication Critical patent/CH184182A/en

Links

Landscapes

  • Coloring (AREA)

Description

  

      Verfahren    zur Herstellung eines     Azofarbstoffes.            Gegenstand    des     Hauptpatentes    ist ein  Verfahren zur Herstellung eines     Azofarb-          stoffes,    bei dem dianotiertes     5-Nitro-2-amino-          I        -oxybenzol    mit     1-N-Oxätliyl-N-butylamino-          3-methylbenzol    gekuppelt wird.  



  Es wurde nun gefunden, dass man einen  wertvollen ähnlichen     Azofarbstoff    erhält,  wenn man die     Diazoverbindung    des     5-Nitro-          2-amino-l-oxybenzols    mit     1-N-Dioxäthyl-          amino-3-methylbenzol    kuppelt.  



  Der neue Farbstoff eignet sich vorzüglich  zum Färben von     Zelluloseestern    und     -äthern     aus     wässrigem    Bade und liefert hierbei kräf  tige     fuehsinrote    Färbungen, die sich durch  besondere Klarheit und gute Lichtechtheit  auszeichnen, sowie     waschecht    und rein weiss       ützbar    sind; er eignet sich ferner zum Färben  von Harz- und     Nitrozelluloselacken.     



  <I>Beispiel:</I>  154 Teile     5-Nitro-2-amino-7.-oxybenzol     werden in 6000 Teilen Wasser suspendiert,  mit 250 Teilen     3,5%iger    Salzsäure versetzt  und unter allmählicher Zugabe von 300 Tei  len einer     23%igen        Natriumnitritlösung        dia-          zotiert.    Die so     erhaltene    Lösung der Diazo-         verbindung    wird zu einer Lösung von 205  Teilen     1-N-Dioxyäthylamino-3-methylbenzol     in 120 Teilen     35%iger    Salzsäure und 1000  Teilen Wasser     gegeben.    Die     Farbstoffbil-       <RTI  

   ID="0001.0037">   dting    wird durch Zugabe von 500 Teilen       Natriumacetat    zu Ende geführt.



      Process for the preparation of an azo dye. The subject of the main patent is a process for the production of an azo dye in which dianotated 5-nitro-2-amino-1-oxybenzene is coupled with 1-N-oxethyl-N-butylamino-3-methylbenzene.



  It has now been found that a valuable similar azo dye is obtained if the diazo compound of 5-nitro-2-amino-1-oxybenzene is coupled with 1-N-dioxäthylamino-3-methylbenzene.



  The new dye is ideally suited for dyeing cellulose esters and ethers from aqueous baths and delivers strong fiery red dyes, which are characterized by particular clarity and good lightfastness, as well as being washable and pure white; it is also suitable for dyeing resin and nitrocellulose lacquers.



  <I> Example: </I> 154 parts of 5-nitro-2-amino-7th-oxybenzene are suspended in 6000 parts of water, 250 parts of 3.5% hydrochloric acid are added and, with the gradual addition of 300 parts of a 23 % sodium nitrite solution diacotized. The solution of the diazo compound thus obtained is added to a solution of 205 parts of 1-N-dioxyethylamino-3-methylbenzene in 120 parts of 35% strength hydrochloric acid and 1000 parts of water. The dye image <RTI

   ID = "0001.0037"> dting is completed by adding 500 parts of sodium acetate.

Claims (1)

PATENTANSPRUCH: Verfahren zurHerstellung eines Azofarb- stoffes, dadurch gekennzeichnet, dass man die Diazoverbindung des 5-Nitro-2-amino-l-oxy- benzols mit 1-N-Dioxätllylamino-3-metliyl- benzol kuppelt. Claim: Process for the production of an azo dye, characterized in that the diazo compound of 5-nitro-2-amino-1-oxybenzene is coupled with 1-N-dioxätllylamino-3-methylbenzene. Der neue Farbstoff eignet sieh vorzüg lich zum Färben von Zelluloseestern und -äthern aus wässrigem Bade und liefert hier bei kräftige fuchsinrote Färbungen, die sieh durch besondere Klarheit und gute Licht echtheit auszeichnen, sowie waschecht und rein weiss ätzbar sind; er eignet sich ferner zum Färben von Harz- und Nitrozellulose lacken. The new dye is ideally suited for dyeing cellulose esters and ethers from watery baths and provides strong fox-red tints, which are characterized by particular clarity and good lightfastness, and which are washable and can be etched in pure white; it is also suitable for coloring resin and nitrocellulose varnishes.
CH184182D 1934-03-09 1935-02-06 Process for the preparation of an azo dye. CH184182A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE184182X 1934-03-09
CH180691T 1935-02-06

Publications (1)

Publication Number Publication Date
CH184182A true CH184182A (en) 1936-05-15

Family

ID=25720444

Family Applications (1)

Application Number Title Priority Date Filing Date
CH184182D CH184182A (en) 1934-03-09 1935-02-06 Process for the preparation of an azo dye.

Country Status (1)

Country Link
CH (1) CH184182A (en)

Similar Documents

Publication Publication Date Title
CH184182A (en) Process for the preparation of an azo dye.
CH180691A (en) Process for the preparation of an azo dye.
CH188205A (en) Process for the preparation of an azo dye.
CH205815A (en) Process for the production of a new, metal-containing stain dye.
CH239329A (en) Process for the preparation of a disazo dye.
CH194663A (en) Process for the preparation of an azo dye.
CH222693A (en) Process for the preparation of a monoazo dye.
CH195224A (en) Process for the preparation of a chromable monoazo dye.
CH180582A (en) Process for the production of a new dye.
CH184770A (en) Process for the preparation of an azo dye.
CH194093A (en) Process for the preparation of an azo dye.
CH202751A (en) Process for the preparation of an azo dye.
CH215073A (en) Process for the preparation of an azo dye.
CH162740A (en) Process for the production of a new substantive azo dye.
CH215072A (en) Process for the preparation of an azo dye.
CH221166A (en) Process for the preparation of an azo dye.
CH229356A (en) Process for the preparation of a trisazo dye.
CH174519A (en) Process for the production of a new azo dye.
CH129482A (en) Process for the production of a new azo dye.
CH210493A (en) Process for the preparation of a water-soluble azo dye.
CH139375A (en) Process for the preparation of a polyazo dye.
CH294242A (en) Process for the preparation of a trisazo dye.
CH213430A (en) Process for the preparation of an azo dye.
CH203620A (en) Process for the preparation of an azo dye.
CH169700A (en) Process for the production of a new azo dye.