CH123667A - Process for the production of a diazo salt preparation for dyeing and printing. - Google Patents
Process for the production of a diazo salt preparation for dyeing and printing.Info
- Publication number
- CH123667A CH123667A CH123667DA CH123667A CH 123667 A CH123667 A CH 123667A CH 123667D A CH123667D A CH 123667DA CH 123667 A CH123667 A CH 123667A
- Authority
- CH
- Switzerland
- Prior art keywords
- dyeing
- ended
- added
- reaction
- diazo salt
- Prior art date
Links
Description
Verfahren zur Herstellung eines Diazosalzpräparates für Färberei und Druckerei. a Es wurde gefunden, dass man ein gut haltbares Diazosalzpräparat für Färberei und Druckerei erhält, wenn man die wie üblich hergestellte mineralsaure Diazosalzlösung von 5-Nitro-2-amino-l-anisol,mit einem 1.5-naph- talindisulfosauren Metallsalz umsetzt.
Das so erhaltene neutrale 1.5-Naphtalin- disulfonat des dianotierten 5-Nitro-2-amino- 1-anisols von zum Beispiel 43 % Gehalt an Nitroaminoanisolbase bildet ein gelbes, gut haltbares, lösliches, unmittelbar zum Ausfär ben grundierter Baumwolle geeignetes Diazo- salzpräparat, das zweckmässig mit geeigneten, die Ausfärbungen,
die Löslichkeit und die Haltbarkeit günstig beeinflussenden Zusätzen und Färbereihilfsmitteln, wie zum Beispiel Aluminiumsulfat oder Alaun, arylsulfonsauren Metallsalzen und dergleichen noch auf einen handelsüblichen Diazogehalt eingestellt wird.
<I>Beispiel</I> Eine aus 168 Teilen 5-Nitro-2-amino-l- anisol in üblicher Weise hergestellte konzen- trierte Lösung des Diazochlorids wird mit 189 Teilen 1.5-naphtalindisulfosaurem Na trium, Molekulargewicbt 332, bis zur völligen Umsetzung verrührt; dann wird abfiltriert und das Diazosalz bei mässiger Temperatur getrocknet und unter Umständen durch Ver mischen mit geeigneten Färbereihilfsstoffen in handelsfertige Form gebracht. Diese Zusätze können auch dem noch feuchten Diazosalz zugemischt werden.
Process for the production of a diazo salt preparation for dyeing and printing. a It has been found that a diazo salt preparation that can be kept well for dyeing and printing is obtained if the normally prepared mineral acid diazo salt solution of 5-nitro-2-amino-1-anisole is reacted with a 1,5-naphthalenedisulfonic acid metal salt.
The neutral 1,5-naphthalene disulfonate of the dianotized 5-nitro-2-amino-1-anisole obtained in this way, for example with a content of 43% nitroaminoanisole base, forms a yellow, well-preserved, soluble diazo-salt preparation suitable immediately for coloring primed cotton, the appropriate with suitable, the coloring
the solubility and shelf life of additives and dyeing auxiliaries, such as aluminum sulfate or alum, aryl sulfonic acid metal salts and the like, is adjusted to a commercially available diazo content.
<I> Example </I> A concentrated solution of the diazo chloride prepared in the usual way from 168 parts of 5-nitro-2-amino-l-anisole is mixed with 189 parts of sodium 1,5-naphthalene disulphonic acid, molecular weight 332, until complete conversion stirred; it is then filtered off and the diazo salt is dried at moderate temperature and, under certain circumstances, brought into commercial form by mixing it with suitable dyeing auxiliaries. These additives can also be added to the still moist diazo salt.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE123667X | 1925-01-19 | ||
CH121789T | 1926-01-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH123667A true CH123667A (en) | 1927-12-16 |
Family
ID=25709784
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH123667D CH123667A (en) | 1925-01-19 | 1926-01-18 | Process for the production of a diazo salt preparation for dyeing and printing. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH123667A (en) |
-
1926
- 1926-01-18 CH CH123667D patent/CH123667A/en unknown
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