CH128920A - 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.Info
- Publication number
- CH128920A CH128920A CH128920DA CH128920A CH 128920 A CH128920 A CH 128920A CH 128920D A CH128920D A CH 128920DA CH 128920 A CH128920 A CH 128920A
- Authority
- CH
- Switzerland
- Prior art keywords
- azo dye
- copper
- preparation
- copper compound
- compound
- Prior art date
Links
Landscapes
- Coloring (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-Chlor-2-aminophenol. glyzerinäther und einem Molekül 5 . 5'-Dioxy- 2 . 2'- dinaphtylamin- 7 . 7'- disulfosäure er.
halten werden kann, in eine Kupferverbin dung übergeführt wird, wenn man auf den selben ein kupferabgebendes Mittel ein wirken lässt. Der erhaltene kupferhaltige Azofarbstoff zieht auf die pflanzliche Faser in licht-, alkali- und bügelechten violetten Tönen von bemerkenswerter Klarheit.
<I>Beispiel</I> 963 Gewichtsteile des Azofarbstoffes aus 2 Molekülen 4-Chlor-2-aminophenolglyzerin- äther und 1 Molekül 5.5'-Dioxy-2.2'-di- napthylamin -7 . 7'- disulfosäure werden in 26,000 Volumteilen Wasser gelöst, mit Essig säure deutlich sauer gemacht und bei 80 mit 250 Gewichtsteilen kristallisiertem Kupfer sulfat versetzt.
Unter Rühren wird zwei Stunden auf 80 erwärmt, die Ausscheidung der Farbstoffsäure eventuell durch Kochsalz vervollständigt, abgepresst und getrocknet. Der Farbstoff zieht aus dem Glaubersalz Sodabad in licht-, a.lkali- und bügelechten violetten Tönen von bemerkenswerter Klar heit.
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 4-chloro-2-aminophenol. glycerin ether and one molecule 5. 5'-dioxy-2. 2'-dinaphthylamine- 7. 7'-disulfonic acid er.
can be held, is converted into a copper compound if one lets a copper-releasing agent act on the same. The copper-containing azo dye obtained draws onto the vegetable fiber in light-, alkali- and iron-fast purple tones of remarkable clarity.
<I> Example </I> 963 parts by weight of the azo dye from 2 molecules of 4-chloro-2-aminophenol glycerol ether and 1 molecule of 5.5'-dioxy-2.2'-di-napthylamine -7. 7'-disulfonic acid are dissolved in 26,000 parts by volume of water, made significantly acidic with acetic acid and mixed with 250 parts by weight of crystallized copper sulfate at 80.
The mixture is heated to 80 for two hours with 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-resistant violet tones of remarkable clarity.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE128920X | 1926-04-19 | ||
CH128005T | 1927-03-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH128920A true CH128920A (en) | 1928-11-16 |
Family
ID=25711009
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH128920D CH128920A (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) | CH128920A (en) |
-
1927
- 1927-03-29 CH CH128920D patent/CH128920A/en unknown
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