CH128918A - 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
CH128918A
CH128918A CH128918DA CH128918A CH 128918 A CH128918 A CH 128918A CH 128918D A CH128918D A CH 128918DA CH 128918 A CH128918 A CH 128918A
Authority
CH
Switzerland
Prior art keywords
azo dye
preparation
copper
copper compound
substantive
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 CH128918A publication Critical patent/CH128918A/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-Amino-l-oxybenzol-          glycerinäther    und einem Molekül 5.     5'-Di-          oxy    - 2 . 2'-     dinaphtylamin    - 7.

   7'-     disulfosäure     erhalten werden kann, in eine     Kupferverbin-          dung    übergeführt wird,     wenn    man auf den  selben ein kupferabgebendes Mittel einwirken  lässt.

   Der     erhaltene    kupferhaltige Farbstoff  zieht auf die pflanzliche Faser in licht-,     al-          kali-    und bügelechten violetten Tönen von  bemerkenswerter     Klarheit.            Beispiel:

       893 Gewichtsteile des     Azofarbstoffes    aus  2 Molekülen     2-Amino-l-oxybenzol-glycerin-          äther     
EMI0001.0023     
    und 1 Molekül     5.5'-Dioxy-2.2'-dinaphtyl-          amin-7    .     7'-disulfosäure    werden in 26 000       Volumteilen    Wasser gelöst, mit Essigsäure  deutlich sauer gemacht     und    bei<B>80'</B> mit 2,50    Gewichtsteilen     kristallisiertem    Kupfersulfat  versetzt.

   Unter Rühren wird 2 Stunden auf  80       erwärmt,    die Ausscheidung der     Farb-          stoffsäure    eventuell durch Kochsalz vervoll  ständigt,     abgepresst    und getrocknet. Der  Farbstoff zieht aus dem     Glaubersalz-Soda-          bad    in licht-,     alkali-,    bügelechten violetten  Tönen von bemerkenswerter Klarheit.



  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-amino-1-oxybenzene-glycerol ether 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 is absorbed by the vegetable fibers in light, alkali and iron-fast violet tones of remarkable clarity. Example:

       893 parts by weight of the azo dye from 2 molecules of 2-amino-1-oxybenzene-glycerol ether
EMI0001.0023
    and 1 molecule of 5.5'-dioxy-2.2'-dinaphthylamine-7. 7'-disulfonic acid is dissolved in 26,000 parts by volume of water, made significantly acidic with acetic acid and mixed with 2.50 parts by weight of crystallized copper sulfate at <B> 80 '</B>.

   The mixture is heated to 80 for 2 hours with stirring, the precipitation of the dyestuff 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 violet tones of remarkable clarity.

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-Amino-l-oxybenzol-glycerinäther und einem Molekül 5.5'-Dioxy-2.2'-dinaphtyl- amin-7. 7'-disulfosäure erhältlichen substan- tiven Azofarbstoff und ein kupferabgeben des Mittel aufeinander einwirken lässt. PATENT CLAIM: A process for the preparation of the copper compound of a substantive azo dye, characterized in that the two molecules of the diazo compound from 2-amino-1-oxybenzene-glycerol ether and one molecule of 5.5'-dioxy-2.2'-dinaphthyl amine 7th 7'-disulfonic acid available substantial azo dye and a copper-releasing agent can act on each other. Der erhaltene kupferhaltige Farbstoff zieht auf die pflanzliche Faser in licht-, alkali- und bügelechten violetten Tönen von bemerkens werter Klarheit. The resulting copper-containing dye draws onto the vegetable fibers in light, alkali and iron-fast violet tones of remarkable clarity.
CH128918D 1926-04-19 1927-03-29 Process for the preparation of the copper compound of a substantive azo dye. CH128918A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE128918X 1926-04-19
CH128005T 1927-03-29

Publications (1)

Publication Number Publication Date
CH128918A true CH128918A (en) 1928-11-16

Family

ID=25711007

Family Applications (1)

Application Number Title Priority Date Filing Date
CH128918D CH128918A (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) CH128918A (en)

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