CH248703A - Process for the preparation of a copper-containing disazo dye. - Google Patents

Process for the preparation of a copper-containing disazo dye.

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Publication number
CH248703A
CH248703A CH248703DA CH248703A CH 248703 A CH248703 A CH 248703A CH 248703D A CH248703D A CH 248703DA CH 248703 A CH248703 A CH 248703A
Authority
CH
Switzerland
Prior art keywords
sep
copper
disazo dye
dye
preparation
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellschaft Ciba
Original Assignee
Ciba Geigy
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 Ciba Geigy filed Critical Ciba Geigy
Publication of CH248703A publication Critical patent/CH248703A/en

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Description

  

  Verfahren zur Herstellung eines kupferhaltigen     Disazofarbstoffe8       Gegenstand des vorliegenden     Z-Luatz-          patentes    ist ein Verfahren zur Herstellung  eines     kupferlialtigen        Disazofarbstoffes,    da  durch gekennzeichnet,     dass    der     Disazefarb-          Stoff        [2,8-Dioxynaphtha.Iin-6-sulionsäurel-          (1-azo-4)-        [3,3'-dimetlioxy-diphenyl]-(4'-azo-          1)   <B>-</B>     r2-oxynaphtlialin-3,

  6-disulfons#Lure]    mit       kupferabgebenden    Mitteln behandelt wird.  



  Der neue, kupferhaltige Farbstoff färbt  die     Cellulosefaser    in     reinblauen    Tönen.  
EMI0001.0017     
  
    <I>Beispiel:</I>       Man stellt in an sieh bekannter Weise  den asymmetrischen     Disazofarbstoff    aus<B>61</B>  Teilen     4,4'-Dia.mino-3,3'-dimethoxy-diphenyl,     <B>60</B> Teilen     92,8-Dioxynaphthalin-6-sulfonsäure     und<B>76</B> Teilen     2-Oxynaphthalin-3,6-disulfon-          Säure    dar.

   Der     abfiltrierte        Disazofarbstoff     wird in der     10faehen    Menge heissem Wasser  unter Zusatz von     50Vol.-Teilen    23%iger     Am-          moniaklösung    gelöst.     Man    erwärmt auf<B>85</B>  bis<B>90'</B> und versetzt allmählich mit einer  Lösung von<B>150</B> Teilen     krist.    Kupfersulfat  in Überschüssigem Ammoniak.

   Man hält die         Tempera,tur    unter Rühren während 12 Stun  den bei<B>85-90'.</B> Nach dem     Erha.Iten    wird  die neue     Kupferkomplexverbindung    durch       Aussalzen    abgeschieden,     abfiltriert,    mit       io%iger    Kochsalzlösung gewaschen und  dann getrocknet.  



  Der neue Farbstoff bildet ein     violett-          schwarzes    Pulver, das sieh in heissem Wasser  mit     violettbla.uer,    in     konz.    Schwefelsäure mit       grünstichig    blauer Farbe löst.  



  Die     Cellulosefaser    wird in lichtechten       reinblauen    Tönen gefärbt.



  Process for the production of a copper-containing disazo dye8 The subject matter of the present Z-Luatz patent is a process for the production of a copper-like disazo dye, characterized in that the disazo dye substance [2,8-dioxynaphtha.Iin-6-sulionic acid- (1-azo- 4) - [3,3'-dimetlioxy-diphenyl] - (4'-azo-1) <B> - </B> r2-oxynaphtlialin-3,

  6-disulfons # Lure] is treated with copper-releasing agents.



  The new, copper-containing dye dyes the cellulose fiber in pure blue tones.
EMI0001.0017
  
    <I> Example: </I> The asymmetric disazo dye is prepared in a manner known per se from <B> 61 </B> parts of 4,4'-dia.mino-3,3'-dimethoxy-diphenyl, <B> 60 parts of 92,8-dioxynaphthalene-6-sulfonic acid and 76 parts of 2-oxynaphthalene-3,6-disulfonic acid.

   The filtered disazo dye is dissolved in 10 times the amount of hot water with the addition of 50 parts by volume of 23% ammonia solution. It is heated to <B> 85 </B> to <B> 90 '</B> and a solution of <B> 150 </B> parts of crystalline is gradually added. Copper sulfate in excess ammonia.

   The temperature is kept at 85-90 'for 12 hours with stirring. After it has been obtained, the new copper complex compound is separated out by salting out, filtered off, washed with 10% sodium chloride solution and then dried.



  The new dye forms a violet-black powder, which looks violet-blue in hot water, in conc. Sulfuric acid with a greenish blue color.



  The cellulose fiber is dyed in lightfast, pure blue tones.

Claims (1)

EMI0001.0044 <B>PATENTANSPRUCH:</B> <tb> Verfahren <SEP> zur <SEP> Herstellung <SEP> eines <SEP> kupfer haltigen <SEP> Disazofarbstoffes, <SEP> dadurch <SEP> gekenn zeichnet, <SEP> dass <SEP> der <SEP> Disazofarbstoff <SEP> [2,8-Di oxynap'htlia-Iin, <SEP> <B>- <SEP> 6 <SEP> -</B> <SEP> sulfonsäure] <SEP> <B>- <SEP> #(1 <SEP> -</B> <SEP> azo <SEP> <B>-</B> <SEP> 4) <SEP> <B>-</B> <tb> [3,3'-dimethoxy-diphenyl] <SEP> <B>-</B> <SEP> (4'-azo-1) <SEP> <B>-</B> <SEP> [2-oxy n & phthalin-3,6-disulionsäure] <SEP> mit <SEP> kupferab gebenden <SEP> Mitteln <SEP> behandelt <SEP> wird. <tb> Der <SEP> neue, <SEP> kupferhaltige <SEP> Farbstoff <SEP> färbt <tb> die <SEP> Cillulosefaser <SEP> in <SEP> reinblauen <SEP> Tönen. EMI0001.0044 <B> PATENT CLAIM: </B> <tb> Process <SEP> for the <SEP> production <SEP> of a <SEP> <SEP> copper-containing <SEP> disazo dye, <SEP> marked with <SEP>, <SEP> that <SEP> the <SEP> disazo dye <SEP > [2,8-Di oxynap'htlia-Iin, <SEP> <B> - <SEP> 6 <SEP> - </B> <SEP> sulfonic acid] <SEP> <B> - <SEP> # (1 <SEP> - </B> <SEP> azo <SEP> <B> - </B> <SEP> 4) <SEP> <B> - </B> <tb> [3,3'-dimethoxy-diphenyl] <SEP> <B> - </B> <SEP> (4'-azo-1) <SEP> <B> - </B> <SEP> [ 2-oxy n & phthalene-3,6-disulionic acid] <SEP> is treated with <SEP> copper-releasing <SEP> agents <SEP> <SEP>. <tb> The <SEP> new <SEP> <SEP> copper-containing <SEP> dye <SEP> colors <tb> the <SEP> cillulose fiber <SEP> in <SEP> pure blue <SEP> tones.
CH248703D 1945-03-22 1945-03-22 Process for the preparation of a copper-containing disazo dye. CH248703A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH244051T 1945-03-22
CH248703T 1945-03-22

Publications (1)

Publication Number Publication Date
CH248703A true CH248703A (en) 1947-05-15

Family

ID=25728900

Family Applications (1)

Application Number Title Priority Date Filing Date
CH248703D CH248703A (en) 1945-03-22 1945-03-22 Process for the preparation of a copper-containing disazo dye.

Country Status (1)

Country Link
CH (1) CH248703A (en)

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