CH123665A - 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
- CH123665A CH123665A CH123665DA CH123665A CH 123665 A CH123665 A CH 123665A CH 123665D A CH123665D A CH 123665DA CH 123665 A CH123665 A CH 123665A
- Authority
- CH
- Switzerland
- Prior art keywords
- dyeing
- diazo salt
- added
- ended
- reaction
- Prior art date
Links
Landscapes
- Coloring (AREA)
Description
Verfahren zur Herstellung eines Diazosalzpräparates für Färberei und Druckerei. Es wurde gefunden, dass man ein gut haltbares Diazosalzpräparat für Färberei und Druckerei erhält, wenn man die wie üblich hergestellte mineralsaure Diazosalzlösung von o-Nitroanilin mit einem 1.5-Daphtalindisul- fosauren Metallsalz umsetzt.
Das so erhaltene neutrale 1.5-Naphta- lindisulfonat des diazotierten o-Nitroanilins von zum Beispiel 37/o Gehalt an Nitroani- linbase bildet ein gelbes, gut haltbares, genügend lösliches, unmittelbar zum Aus färben grundierter Baumwolle geeignetes Diazosalzpräparat, das zweckmässig mit geeig neten, die Ausfärbungen, die Löslichkeit und die Haltbarkeit günstig beeinflussenden Zusätzen und Färbereihilismitteln, wie zum Beispiel Aluminiumsullat oder Alaun,
aryl- sulfonsauren Metallsalzen und dergleichen noch auf einen handelsüblichen Diazogehalt eingestellt wird.
<I>Beispiel:</I> Eine aus<B>138</B> Teilen o-Nitroanilin in übli cher Weise hergestellte konzentrierte Lö- sung des Diazochlorids -wird mit<B>180</B> Teilen 1.5-naphtalindisulfosaurein Natrium, 'Hole- kulargewicht <B>332,</B> bis zur völligen Umsetzung verrührt; dann wird abfiltriert und das Di- azosalz bei mässiger Temperatur getrocknet und unter Umständen durch Vermischen mit geeigneten Färbereihifsstoffen in handelsfer tige 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. It has been found that a diazo salt preparation that can be kept well for dyeing and printing is obtained if the conventionally prepared mineral acid diazo salt solution of o-nitroaniline is reacted with a 1,5-daphthalene disulphonate metal salt.
The neutral 1,5-naphthalene disulfonate of the diazotized o-nitroaniline obtained in this way, for example 37 / o content of nitroaniline base, forms a yellow, well-durable, sufficiently soluble, diazo salt preparation suitable for dyeing primed cotton, which is expediently mixed with suitable, the coloring, the solubility and the shelf life of additives and dyeing auxiliaries, such as aluminum sulphate or alum,
aryl sulfonic acid metal salts and the like is still adjusted to a commercial Diazo content.
<I> Example: </I> A concentrated solution of the diazo chloride prepared in a customary manner from <B> 138 </B> parts of o-nitroaniline is made up of sodium with <B> 180 </B> parts of 1.5-naphthalene disulfosaurine , 'Hole weight <B> 332, </B> stirred until it is completely converted; it is then filtered off and the diazo salt is dried at a moderate temperature and, under certain circumstances, brought into a ready-to-trade form by mixing it with suitable dyeing agents.
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 |
---|---|---|---|
DE123665X | 1925-01-19 | ||
CH121789T | 1926-01-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH123665A true CH123665A (en) | 1927-12-16 |
Family
ID=25709782
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH123665D CH123665A (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) | CH123665A (en) |
-
1926
- 1926-01-18 CH CH123665D patent/CH123665A/en unknown
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