CH310150A - Process for the preparation of a copper-containing disazo dye. - Google Patents

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

Info

Publication number
CH310150A
CH310150A CH310150DA CH310150A CH 310150 A CH310150 A CH 310150A CH 310150D A CH310150D A CH 310150DA CH 310150 A CH310150 A CH 310150A
Authority
CH
Switzerland
Prior art keywords
copper
dye
preparation
disazo dye
oxynaphthalene
Prior art date
Application number
Other languages
German (de)
Inventor
Mainkur Cassella Farbwerke
Original Assignee
Cassella Farbwerke Mainkur 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 Cassella Farbwerke Mainkur Ag filed Critical Cassella Farbwerke Mainkur Ag
Publication of CH310150A publication Critical patent/CH310150A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B35/00—Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
    • C09B35/02—Disazo dyes
    • C09B35/039—Disazo dyes characterised by the tetrazo component
    • C09B35/08—Disazo dyes characterised by the tetrazo component the tetrazo component being a derivative of biphenyl
    • C09B35/10—Disazo dyes characterised by the tetrazo component the tetrazo component being a derivative of biphenyl from two coupling components of the same type
    • C09B35/14—Disazo dyes characterised by the tetrazo component the tetrazo component being a derivative of biphenyl from two coupling components of the same type from hydroxy compounds

Description

  

  Zusatzpatent     zum    Hauptpatent Nr. 306382.    Verfahren zur Herstellung eines kupferhaltigen     Disazofarbstoffes.       Vorliegendes Patent bezieht sieh auf ein.  Verfahren zur Herstellung eines kupferhalti  gen     Disazofarbstoffes,    dadurch gekennzeich  net, dass man 1     Mol    der     Tetrazov        erbindung     von     4.4'-Diamino-3.3'-dimethoxydiphenyl    mit  1.     Mol        1-Oxy-naphthalin-3.6-disulfonsäure    und  1     Mol        1-Oxy-naphthalin-4-sulfonsäure    verei  nigt und den so erhaltenen Farbstoff mit  Kupfer abgebenden Mitteln behandelt.

           Beispiel:     21,8 kg     4.4'-Diamino-3.3'-dimethoxydiphe-          nyl    werden in der üblichen Weise in     Salzsäure     gelöst und unter Eiskühlung durch langsames       Zulaufenlassen    einer wässerigen Lösung von  13,8 kg     Natriumnitrit        tetrazotiert.    Zu der,  nötigenfalls filtrierten,     Tetrazolösung    lässt  man bei 0  eine überschüssiges     Natriumcarbo-          nat    enthaltende Lösung von 30,4 kg     1-Oxy-          riaphthalin-3.6-disttlfonsäure    laufen und rührt  einige Zeit,

   bis sich der Zwischenkörper ge  bildet hat und die     Tetrazoverbindung    nicht  mehr nachweisbar ist. Dann gibt man eine  neutrale Lösung von 23 kg     1-Oxynaphthalin-          4-sulfonsäure    hinzu, rührt einige Zeit weiter  und führt die Bildung des     Disazofarbstoffes     durch Zugabe von Natronlauge zu Ende. Der  Farbstoff wird durch Anwärmen, Neutrali  sieren mit Salzsäure und Zugabe von Stein  salz abgeschieden und filtriert.  



  Zwecks     Überführung    in die     Kitpferkom-          plexverbindung    löst man die     Parbstoffpaste     in etwa 5000 1 Wasser, fügt eine Mischung    aus etwa 52,5 kg Kupfersulfat kristallisiert,  gelöst in etwa 200 1 Wasser und 120 1     Ammo-          niakwasser    (Dichte 0,93), hinzu und     rührt     etwa 24 Stunden bei 90-95  in geschlossenem  Gefäss mit     Rückflusskühler.    Es tritt starker  Geruch nach     Methylamin    auf. Nach Beendi  gung der     Kupferkomplexbildung    wird der  Farbstoff durch     Aussalzen    mit Steinsalz ab  geschieden.  



  Der so erhaltene Farbstoff bildet nach dem       Trocknen    ein dunkles wasserlösliches Pulver  und färbt Baumwolle und     Polyamidfasern    in       rotstichig    blauen Tönen. Der Farbstoff besitzt  ein sehr gutes Ziehvermögen und sehr gute  Löslichkeit. Die Färbungen sind sehr licht  echt.



  Additional patent to main patent No. 306382. Process for the production of a copper-containing disazo dye. This patent refers to a. Process for the preparation of a copper-containing disazo dye, characterized in that 1 mol of the Tetrazov compound of 4.4'-diamino-3.3'-dimethoxydiphenyl is mixed with 1. mol of 1-oxynaphthalene-3.6-disulfonic acid and 1 mol of 1-oxynaphthalene -4-sulfonic acid combined and treated the dye thus obtained with copper donating agents.

           Example: 21.8 kg of 4,4'-diamino-3,3'-dimethoxydiphenyl are dissolved in hydrochloric acid in the usual way and tetrazotized while cooling with ice by slowly running in an aqueous solution of 13.8 kg of sodium nitrite. A solution of 30.4 kg of 1-oxyriaphthalene-3,6-distulfonic acid containing excess sodium carbonate is allowed to run into the tetrazo solution, filtered if necessary, and stirred for some time.

   until the intermediate body has formed and the tetrazo compound can no longer be detected. Then a neutral solution of 23 kg of 1-oxynaphthalene-4-sulfonic acid is added, stirring is continued for some time and the formation of the disazo dye is completed by adding sodium hydroxide solution. The dye is deposited by warming up, neutralizing with hydrochloric acid and adding rock salt and filtered.



  To convert it into the kitpfer complex compound, dissolve the paraffin paste in about 5000 liters of water, add a mixture of about 52.5 kg of crystallized copper sulfate, dissolved in about 200 liters of water and 120 liters of ammonia water (density 0.93), and add stir for about 24 hours at 90-95 in a closed vessel with a reflux condenser. There is a strong odor of methylamine. After completion of the copper complex formation, the dye is deposited by salting out with rock salt.



  The dye thus obtained forms a dark, water-soluble powder after drying and dyes cotton and polyamide fibers in reddish blue tones. The dye has very good drawability and very good solubility. The colors are very light-fast.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines kupfer haltigen Disazofarbstoffes, dadurch gekenn zeichnet, dass man 1 Mol der Tetrazoverbin- dung von 4.4' - Diamino - 3.3'- dirnethoxydiphe- nyl mit 1 Mol 1-Oxy-naphthalin-3.6-disulfon- säure und 1 Mol 1-Oxy-naphthalin-4-sulfon- säure vereinigt und den so erhaltenen Farb stoff mit Kupfer abgebenden Mitteln behan delt. PATENT CLAIM: Process for the production of a copper-containing disazo dye, characterized in that 1 mol of the tetrazo compound of 4.4'-diamino-3.3'-dirnethoxydiphenyl is mixed with 1 mol of 1-oxynaphthalene-3.6-disulphonic acid and 1 Moles of 1-oxynaphthalene-4-sulfonic acid are combined and the dye thus obtained is treated with agents that donate copper. Der so erhaltene Farbstoff bildet nach dem Trocknen ein dunkles wasserlösliches Pulver -und färbt Baumwolle und Polyamid fasern in rotstichig blauen Tönen. After drying, the dye thus obtained forms a dark, water-soluble powder and dyes cotton and polyamide fibers in reddish-tinged blue tones.
CH310150D 1951-07-27 1952-07-23 Process for the preparation of a copper-containing disazo dye. CH310150A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE310150X 1951-07-27
CH306382T 1953-12-10

Publications (1)

Publication Number Publication Date
CH310150A true CH310150A (en) 1955-09-30

Family

ID=25735129

Family Applications (1)

Application Number Title Priority Date Filing Date
CH310150D CH310150A (en) 1951-07-27 1952-07-23 Process for the preparation of a copper-containing disazo dye.

Country Status (1)

Country Link
CH (1) CH310150A (en)

Similar Documents

Publication Publication Date Title
CH310150A (en) Process for the preparation of a copper-containing disazo dye.
DE880622C (en) Process for the preparation of copper-containing disazo dyes
DE930409C (en) Process for the preparation of disazo dyes
DE411332C (en) Process for the preparation of yellow-brown stain-coloring disazo dyes
CH310151A (en) Process for the preparation of a copper-containing disazo dye.
CH306382A (en) Process for the preparation of a copper-containing disazo dye.
CH308789A (en) Process for the preparation of a copper-containing disazo dye.
CH215063A (en) Process for the production of a copper-containing trisazo dye.
DE698977C (en) Process for the production of water-soluble azo dyes
CH223704A (en) Process for the production of a new, copper-containing azo dye.
CH306381A (en) Process for the preparation of a copper-containing disazo dye.
DE1074174B (en) Process for the preparation of disazo dyes and their metal complex compounds
CH211004A (en) Process for the preparation of an azo dye.
CH258758A (en) Process for the preparation of an azo dye.
CH249794A (en) Process for the preparation of a substantive azo dye.
CH137648A (en) Process for the preparation of an azo dye.
CH355240A (en) Process for the preparation of disazo dyes
CH272499A (en) Process for the preparation of a monoazo dye.
CH138211A (en) Process for the production of a new metal-containing dye.
CH154040A (en) Process for the preparation of an azo dye for cotton.
CH191739A (en) Process for the preparation of an azo dye.
CH180264A (en) Process for the preparation of an azo dye.
CH294236A (en) Process for the preparation of a copper-containing disazo dye.
CH300793A (en) Process for the preparation of a disazo dye.
CH308791A (en) Process for the preparation of a copper-containing disazo dye.