CH128919A - 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
CH128919A
CH128919A CH128919DA CH128919A CH 128919 A CH128919 A CH 128919A CH 128919D A CH128919D A CH 128919DA CH 128919 A CH128919 A CH 128919A
Authority
CH
Switzerland
Prior art keywords
azo dye
preparation
copper
copper compound
substantive azo
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 CH128919A publication Critical patent/CH128919A/en

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

      Verfahren    zur Darstellung der Kupferverbindung eines     substantiven        Azofarbstoffes.       Es     wurde    gefunden, dass der     substantive          Azofarbstoff,    wie er aus zwei Molekülen der       Diazoverbindung    aus     4-Nitro-2-aminophenol-          glykoläther    und einem Molekül 5.     5'-Dioxy-          2.2'-dinaphtylamin-7.7'-disulfosäure    erhal  ten werden kann, in eine Kupferverbindung  übergeführt wird, wenn man auf denselben  ein kupferabgebendes Mittel einwirken lässt.

    Der erhaltene kupferhaltige     Azofarbstoff     zieht auf die pflanzliche Faser in licht-,       alkali-    und bügelechten     violetten    Tönen.  



       Beispiel:     925 Gewichtsteile des     Azofarbstoffes    aus  2 Molekülen     4-Nitro-2-aminophenolglykol-          äther    und 1 Molekül     5.5'-Dioxy-2.2'-di-          naphtylamin-7.7'-disulfosäure    werden in  26 000     Volumteilen    Wasser gelöst, mit Essig  säure deutlich sauer gemacht und bei<B>80'</B>  mit 250     Gewiehtsteilen    kristallisiertem Kup  fersulfat versetzt. Unter Rühren wird 2       Stunden    auf<B>80'</B> erwärmt, die Ausscheidung    der     Farbstoffsäure    eventuell durch Kochsalz  vervollständigt,     abgepresst    und getrocknet.

    Der Farbstoff zieht aus dem Glaubersalz  Sodabad in licht-,     alkali-    und bügelechten  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 can be obtained from two molecules of the diazo compound from 4-nitro-2-aminophenol glycol ether and one molecule of 5.5'-dioxy-2.2'-dinaphthylamine-7.7'-disulfonic acid, is converted into a copper compound when a copper-releasing agent is allowed to act on it.

    The copper-containing azo dye obtained is absorbed by the vegetable fibers in light-, alkali- and iron-fast purple tones.



       Example: 925 parts by weight of the azo dye from 2 molecules of 4-nitro-2-aminophenolglycol ether and 1 molecule of 5.5'-dioxy-2.2'-di-naphthylamine-7.7'-disulfonic acid are dissolved in 26,000 parts by volume of water, and acetic acid is clearly acidic made and at <B> 80 '</B> with 250 parts by weight of crystallized copper sulfate. The mixture is heated to <B> 80 '</B> for 2 hours while stirring, the precipitation of the dye acid is possibly completed with sodium chloride, pressed off and dried.

    The dye draws from the Glauber's salt soda bath in light, alkali and iron-fast 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 4-Nitro-2-aminophenolglykoläther und einem Molekül 5 . 5'-Dioxy-2.2'-dinaphtylamin-7 . 7'- disulfosäure erhältlichen substantiven Azo- farbstoff und ein kupferabgebendes Mittel aufeinander einwirken lässt. 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 4-nitro-2-aminophenol glycol ether and a molecule of 5. 5'-Dioxy-2.2'-dinaphthylamine-7. 7'-disulfonic acid available substantive azo dye and a copper releasing agent can act on one another. Der erhaltene kupferhaltige Farbstoff zieht auf die pflanz liche Faser in licht-, alkali- und bügelechten violetten Tönen. The copper-containing dye obtained is absorbed onto the vegetable fiber in light, alkali and iron-fast violet tones.
CH128919D 1926-04-19 1927-03-29 Process for the preparation of the copper compound of a substantive azo dye. CH128919A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE128919X 1926-04-19
CH128005T 1927-03-29

Publications (1)

Publication Number Publication Date
CH128919A true CH128919A (en) 1928-11-16

Family

ID=25711008

Family Applications (1)

Application Number Title Priority Date Filing Date
CH128919D CH128919A (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) CH128919A (en)

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