CH128917A - 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
- CH128917A CH128917A CH128917DA CH128917A CH 128917 A CH128917 A CH 128917A CH 128917D A CH128917D A CH 128917DA CH 128917 A CH128917 A CH 128917A
- Authority
- CH
- Switzerland
- Prior art keywords
- azo dye
- preparation
- copper
- copper compound
- dye
- 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 2-Amino-l-oxybenzol- glykoläther 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 Farbstoff zieht auf die pflanzliche Faser in licht-, alkali- und bügelechten rot violetten Tönen von bemerkenswerter Klar heit.
<I>Beispiel</I> 833 Gewichtsteile des Azofarbstoffes aus 2 Molekülen 2-Amino-l-oxybenzolglykol- äther
EMI0001.0016
und 1 Molekül 5.5'-Dioxy-2.2'-dinaphtyl- amin-7 . 7'-disulfoäure werden in 26,000 Vo- lumteilen Wasser gelöst, mit Essigsäure deutlich sauer gemacht und bei<B>80'</B> 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, alkali- und bügelechten rotvioletten Tönen von bemerkenswerter Klarheit.
Process for the preparation of the copper compound of a noun azo dye. It was found that the noun azo dye, as it is composed of two molecules of the diazo compound from 2-amino-1-oxybenzene glycol ether and a molecule 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 draws onto the vegetable fibers in light, alkali and iron-fast red-violet tones of remarkable clarity.
<I> Example </I> 833 parts by weight of the azo dye from 2 molecules of 2-amino-1-oxybenzene glycol ether
EMI0001.0016
and 1 molecule of 5.5'-dioxy-2.2'-dinaphthylamine-7. 7'-disulfoic acid is dissolved in 26,000 parts by volume of water, made significantly acidic with acetic acid and, at <B> 80 '</B>, 250 parts by weight of crystallized copper sulfate are added.
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-fast red-violet tones of remarkable clarity.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE128917X | 1926-04-19 | ||
CH128005T | 1927-03-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH128917A true CH128917A (en) | 1928-11-16 |
Family
ID=25711006
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH128917D CH128917A (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) | CH128917A (en) |
-
1927
- 1927-03-29 CH CH128917D patent/CH128917A/en unknown
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