CH294234A - 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
CH294234A
CH294234A CH294234DA CH294234A CH 294234 A CH294234 A CH 294234A CH 294234D A CH294234D A CH 294234DA CH 294234 A CH294234 A CH 294234A
Authority
CH
Switzerland
Prior art keywords
copper
preparation
disazo dye
dissolves
parts
Prior art date
Application number
Other languages
German (de)
Inventor
Ag J R Geigy
Original Assignee
Ag J R 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 Ag J R Geigy filed Critical Ag J R Geigy
Publication of CH294234A publication Critical patent/CH294234A/en

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Description

  

  Verfahren     zur        Herstellung        eines        kupferhaltigen        Dieazofarbstoffes.            Gegenstand    vorliegenden Patentes ist ein  Verfahren zur Herstellung eines kupferhal  tigen     Disazofarbstoffes.    Das Verfahren ist da  durch gekennzeichnet, dass man 1     Mol    tetrazo-         tiertes        4,4'-Diamino-3,3'-dimethoxy-diphenyl    in  beliebiger Reihenfolge nacheinander mit 1     Mol          1-Oxy-naphthalin-3,

  8-disulfonsäure    und 1     Mol     der Verbindung  
EMI0001.0014     
    kuppelt und den erhaltenen     Disazofarbstoff     mit kupferabgebenden Mitteln behandelt.  



  Der erhaltene neue     Farbstoff    stellt ein  dunkles Pulver dar, das sich in Wasser mit.  blauer Farbe löst. und     Cellulosefasern    in leb  haften blauen Tönen färbt.    <I>Beispiel:</I>  Zu der Zwischenverbindung aus 24,4 Tei  len     tetrazotiertem        o-Dianisidin    und 30,4 Teilen       1-Oxy-naphthalin-3,8-disulfonsäiire    wird eine       ammoniakalisehe    Lösung, enthaltend 44,6 Teile  der folgenden Verbindung  
EMI0001.0022     
    zulaufen gelassen und bis zur Beendigung  der Kupplung verrührt.

   Der     Disazofarbstoff     wird in 2500 Teilen     @@        asser    bei 80 bis 85  ge  löst und bei dieser Temperatur 400 Teile einer       Kupferoxydammoniaklösung,    die 50 Teile       krist.    Kupfersulfat und 120 Teile     konz.        wäss-          ri-en    Ammoniak     enthält,    zugefügt. Es wird  4 bis 5 Stunden auf 80 bis 85  erhitzt und nach  Zufügen von weiteren 50 Teilen einer     konz.          .Ainmoniaklösung    15 bis 20 Stunden auf 90 bis    95  erhitzt. Der gebildete Kupferkomplex wird  mit Kochsalz ausgefällt, filtriert und getrocknet.

    Er stellt ein dunkles Pulver dar, das sich in  Wasser mit blauer Farbe löst und     Cellulose-          fasern    in lebhaften blauen Tönen von sehr  guter Wasser- und Lichtechtheit färbt.



  Process for the preparation of a copper-containing dieazo dye. The present patent is a process for the preparation of a kupferhal term disazo dye. The process is characterized in that 1 mole of tetrazo-tated 4,4'-diamino-3,3'-dimethoxy-diphenyl is mixed in any order with 1 mole of 1-oxynaphthalene-3,

  8-disulfonic acid and 1 mole of the compound
EMI0001.0014
    coupled and treated the disazo dye obtained with copper donating agents.



  The new dye obtained is a dark powder that dissolves in water with. blue color dissolves. and cellulose fibers in vivid blue tones. <I> Example: </I> An ammoniacal solution containing 44.6 parts of the following is added to the intermediate compound of 24.4 parts of tetrazotized o-dianisidine and 30.4 parts of 1-oxynaphthalene-3,8-disulfonic acid connection
EMI0001.0022
    allowed to run in and stirred until the coupling is complete.

   The disazo dye is dissolved in 2500 parts @@ water at 80 to 85 ge and at this temperature 400 parts of a copper oxide ammonia solution containing 50 parts of crystalline. Copper sulfate and 120 parts of conc. aqueous ammonia is added. It is heated to 80 to 85 hours for 4 to 5 hours and, after adding a further 50 parts of a conc. .Ainmoniaklösung heated to 90 to 95 for 15 to 20 hours. The copper complex formed is precipitated with common salt, filtered and dried.

    It is a dark powder that dissolves in water with a blue color and dyes cellulose fibers in lively blue tones with very good water and lightfastness.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines kupfer haltigen Disazofarbstoffes, dadurch gekenn- zeichnet, dass man 1 Mol tetrazotiertes -1,1'- Diamino-3,3'-dimethoxy-diphenyl in beliebiger Reihenfolge nacheinander mit 1 Mol 1-Oxy- naphthalin-3,8-disulfonsäure und 1. 2vIol der Verbindung EMI0002.0008 kuppelt und den erhaltenen Disazofarbstoff mit kupferabgebenden Mitteln behandelt. Der erhaltene neue Farbstoff stellt ein dunkles Pulver dar, das sich in Wasser mit. PATENT CLAIM: Process for the preparation of a copper-containing disazo dye, characterized in that 1 mol of tetrazotized -1,1'-diamino-3,3'-dimethoxy-diphenyl is mixed with 1 mol of 1-oxynaphthalene-3 , 8-disulfonic acid and 1.2vIol of the compound EMI0002.0008 coupled and treated the disazo dye obtained with copper donating agents. The new dye obtained is a dark powder that dissolves in water with. blauer Farbe löst und Cellulosefasern in leb haften blauen Tönen färbt. blue paint dissolves and dyes cellulose fibers in vivid blue tones.
CH294234D 1951-02-07 1951-02-07 Process for the preparation of a copper-containing disazo dye. CH294234A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH291510T 1951-02-07
CH294234T 1951-02-07

Publications (1)

Publication Number Publication Date
CH294234A true CH294234A (en) 1953-10-31

Family

ID=25733115

Family Applications (1)

Application Number Title Priority Date Filing Date
CH294234D CH294234A (en) 1951-02-07 1951-02-07 Process for the preparation of a copper-containing disazo dye.

Country Status (1)

Country Link
CH (1) CH294234A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5225545A (en) * 1991-05-15 1993-07-06 Ciba-Geigy Corporation Disazo dyes containing a 1-hydroxy-3-sulfo-acylaminophenyl-amino-naphthalene coupling component

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5225545A (en) * 1991-05-15 1993-07-06 Ciba-Geigy Corporation Disazo dyes containing a 1-hydroxy-3-sulfo-acylaminophenyl-amino-naphthalene coupling component

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