CH128005A - 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
CH128005A
CH128005A CH128005DA CH128005A CH 128005 A CH128005 A CH 128005A CH 128005D A CH128005D A CH 128005DA CH 128005 A CH128005 A CH 128005A
Authority
CH
Switzerland
Prior art keywords
azo dye
copper compound
preparation
copper
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 CH128005A publication Critical patent/CH128005A/en

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Description

  

  Verfahren zur     Darstellun;    der Kupferverbindung eines     substantiven        Azofarbstoffes.       Es wurde gefunden, dass     substantive        Azo-          farbstoffe    aus     Diazoverbindungen    beziehungs  weise     Diazoazoverbindungen    von solchen     No-          noaminen    und ihren Derivaten, die in     o-Stellung     zur     Aminogruppe    mindestens eine nicht sub  stituierte oder substituierte     Alkyloxy-,

          Aralkyl-          oxy-    oder     Aryloxygruppe    tragen, in wertvolle  Kupferverbindungen     überführbar    sind. Man  erhält so sehr lichtechte     substantive        Azofarb-          stoffe    in den verschiedensten Farbtönen, die  sich durch     Alkaliechtheit,    sowie Bügelechtheit  auszeichnen.  



  Gegenstand vorliegender Erfindung ist  ein Verfahren zur Darstellung der Kupfer  verbindung eines     substantiven        Azofarbstoffes,     welches dadurch gekennzeichnet ist, dass man  den aus zwei Molekülen der     Diazoverbindung     aus     2-Aminoanisol    und 1 Molekül     5.5'-Dioxy-          2.         '-dinaphtylamin-7    .     7'-disulfosäure    erhält  lichen     Azofarbstoff    und ein kupferabgebendes  Mittel aufeinander einwirken lässt. Die so  erhaltene Kupferverbindung zieht am Baum  wolle in     alkali-    und lichtechten rotvioletten  Tönen von guter Bügelechtheit.

           Beispiel:     780 Gewichtsteile des     Azofarbstoffes    aus  2 Molekülen     2-Aminoanisol    und 1 Molekül  5 .     5'-Dioxy-2    .     2'-dinapbtylamin-7    .     7'-disulfo-          säure    werden mit 27000     Volumteilen    Wasser  gelöst. Unter Rühren wird mit Essigsäure  schwach sauer gemacht und dann bei 80  mit  280 Gewichtsteilen kristallisiertem Kupfer  sulfat in der zehnfachen Menge Wasser ver  setzt.

   Nach zweistündigem Erwärmen auf  70-80  wird die Ausscheidung der Farbstoff  säure eventuell durch Zusatz von     Kochsals     vervollständigt, der     Farbstoff        abgepresst    und  getrocknet. Er zieht auf Baumwolle im       Glaubersalz-Sodabad    in     alkali-    und lichtechten  rotvioletten Tönen von guter Bügelechtheit.



  Method of presentation; the copper compound of a substantive azo dye. It has been found that substantive azo dyes from diazo compounds or diazoazo compounds of those noamines and their derivatives which have at least one unsubstituted or substituted alkyloxy, in the o-position to the amino group

          Carry aralkyl oxy or aryloxy groups, can be converted into valuable copper compounds. In this way, very lightfast substantive azo dyes are obtained in a wide variety of shades, which are distinguished by their fastness to alkali and ironing.



  The present invention relates to a process for the preparation of the copper compound of a substantive azo dye, which is characterized in that the two molecules of the diazo compound from 2-aminoanisole and 1 molecule of 5.5'-dioxy-2.'-dinaphthylamine-7. 7'-disulfonic acid and a copper-releasing agent can act on one another. The copper compound obtained in this way pulls on cotton in alkali and lightfast red-violet tones that are easy to iron.

           Example: 780 parts by weight of the azo dye from 2 molecules of 2-aminoanisole and 1 molecule of 5. 5'-dioxy-2. 2'-dinapbtylamine-7. 7'-disulfonic acid is dissolved in 27,000 parts by volume of water. While stirring, the mixture is made slightly acidic with acetic acid and then at 80 with 280 parts by weight of crystallized copper sulfate in ten times the amount of water.

   After two hours of warming to 70-80, the excretion of the dyestuff acid is possibly completed by adding Kochsals, the dyestuff is squeezed out and dried. It pulls on cotton in a Glauber's salt soda bath in alkali and lightfast red-violet tones that are easy to iron.

 

Claims (1)

<B>PATENTANSPRUCH:</B> Verfahren zur Darstellung der Kupfer verbindung eines substarrtiven Azofarbstoffes, dadurch gekennzeichnet, dass man den aus zwei Molekülen der Diazoverbindung aus 2- Aminoanisol und einem Molekül 5.5'-Dioxy- 2.2'-dinaphtylamin-7.7'-disulfosäure erhält- liehen substantiven Azofarbstoff und ein kupferabgebendes Mittel aufeinander ein wirken lässt. Die so erhaltene Kupferverbin dung zieht auf Baumwolle in alkali- und lichtechten rotvioletten Tönen von guter Bügelechtheit. <B> PATENT CLAIM: </B> Process for the preparation of the copper compound of a substarrtiven azo dye, characterized in that the two molecules of the diazo compound of 2-aminoanisole and one molecule of 5.5'-dioxy-2.2'-dinaphtylamine-7.7'- disulfonic acid borrowed substantive azo dye and a copper donating agent can act on each other. The copper compound obtained in this way pulls on cotton in alkali and lightfast red-violet shades of good ironing fastness.
CH128005D 1926-04-19 1927-03-29 Process for the preparation of the copper compound of a substantive azo dye. CH128005A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE128005X 1926-04-19

Publications (1)

Publication Number Publication Date
CH128005A true CH128005A (en) 1928-10-01

Family

ID=5662343

Family Applications (1)

Application Number Title Priority Date Filing Date
CH128005D CH128005A (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) CH128005A (en)

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