CH128916A - Process for the preparation of the copper compound of a substantive azo dye. - Google Patents

Process for the preparation of the copper compound of a substantive azo dye.

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Publication number
CH128916A
CH128916A CH128916DA CH128916A CH 128916 A CH128916 A CH 128916A CH 128916D A CH128916D A CH 128916DA CH 128916 A CH128916 A CH 128916A
Authority
CH
Switzerland
Prior art keywords
azo dye
preparation
copper compound
substantive azo
copper
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 CH128916A publication Critical patent/CH128916A/en

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Description

  

  Verfahren zur Darstellung der Kupferverbindung eines     substantiven        Azofarbstoffes.       Es wurde gefunden, dass der     substantive          Azofarbstoff,        wie    er aus zwei Molekülen der       Diazoverbindung    aus     2-Aminophenoxyessig-          säure    und einem Molekül 5.     5'-Dioxy-2.        2'-          dinaphtylamin    - 7.

   7' -     disulfosäure    erhalten  werden kann, in eine Kupferverbindung über  geführt wird, wenn man auf denselben ein  kupferabgebendes Mittel     einwirken        läss't.     Der erhaltene kupferhaltige Farbstoff zieht  auf Baumwolle in lichtechten violetten Tö  nen.  



  <I>Beispiel</I>  909 Gewichtsteile des     Azofarbstoffes    aus  2 Molekülen     2-Aminophenoxyessigsäure    und  1 Molekül     5.5'-Dioxy-2.2'-dinaphtylamin-          7.        7'-disulfosäure    werden in 20,000     Volum-          teilen    Wasser gelöst, mit Essigsäure deut  lich sauer gemacht und bei<B>80'</B> unter Rüh  ren mit 800 Gewichtsteilen Kupfersulfat       (krist.)    in der zehnfachen Menge Wasser ver  setzt.

   Nach einstündigem     Erwärmen    wird die         Abscheidung    der     Farbstoffsäure    eventuell  durch     Zusatz    von Kochsalz vervollständigt,       abgepresst    und getrocknet. Der Farbstoff  zieht aus dem     Glaubersalz-Sodabad    auf  Baumwolle in lichtechten violetten Tönen.



  Process for the preparation of the copper compound of a substantive azo dye. It has been found that the substantive azo dye, as it is composed of two molecules of the diazo compound from 2-aminophenoxyacetic acid and one molecule of 5. 5'-dioxy-2. 2'-dinaphthylamine - 7.

   7'-disulfonic acid can be obtained, is converted into a copper compound if a copper-releasing agent is allowed to act on the same. The copper-containing dye obtained pulls on cotton in lightfast violet tones.



  <I> Example </I> 909 parts by weight of the azo dye from 2 molecules of 2-aminophenoxyacetic acid and 1 molecule of 5.5'-dioxy-2.2'-dinaphthylamine-7. 7'-disulfonic acid are dissolved in 20,000 parts by volume of water, with acetic acid clearly made acidic and added at <B> 80 '</B> while stirring with 800 parts by weight of copper sulfate (crystalline) in ten times the amount of water.

   After one hour of heating, the deposition of the dyestuff acid is possibly completed by adding sodium chloride, pressed off and dried. The dye draws from the Glauber's salt soda bath on cotton in lightfast purple tones.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung der Kupfer verbindung eines substantiven Azofarbstof- fes, dadurch gekennzeichnet, dass man den aus zwei Molekülen der Diazoverbindung aus 2-Aminophenoxyessigsäure und einem Mole kül 5. PATENT CLAIM: Process for the preparation of the copper compound of a substantive azo dye, characterized in that the two molecules of the diazo compound of 2-aminophenoxyacetic acid and one molar 5. 5'-Dioxy-2. 2'-dinaphtylamin-7. T- disulfosäure erhältlichen substantiven Azo- farbstoff und ein kupferabgebendes Mittel aufeinander einwirken lässt. Die so erhaltene Kupferverbindung zieht auf Baumwolle in lichtechten violetten Tönen. 5'-dioxy-2. 2'-dinaphthylamine-7. T-disulfonic acid available substantive azo dye and a copper donor can act on each other. The copper compound obtained in this way pulls on cotton in lightfast violet tones.
CH128916D 1926-04-19 1927-03-29 Process for the preparation of the copper compound of a substantive azo dye. CH128916A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE128916X 1926-04-19
CH128005T 1927-03-29

Publications (1)

Publication Number Publication Date
CH128916A true CH128916A (en) 1928-11-16

Family

ID=25711005

Family Applications (1)

Application Number Title Priority Date Filing Date
CH128916D CH128916A (en) 1926-04-19 1927-03-29 Process for the preparation of the copper compound of a substantive azo dye.

Country Status (1)

Country Link
CH (1) CH128916A (en)

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