CH123663A - 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
- CH123663A CH123663A CH123663DA CH123663A CH 123663 A CH123663 A CH 123663A CH 123663D A CH123663D A CH 123663DA CH 123663 A CH123663 A CH 123663A
- Authority
- CH
- Switzerland
- Prior art keywords
- dyeing
- ended
- added
- reaction
- diazo salt
- 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 Chlortoluidin (CHs : NH2 : Cl = 1 : 2 : 5) mit einem 1.5-naphtalindisulfosauren Metallsalz umsetzt.
Das so erhaltene neutrale 1.5-Naphtalin- disulfonat des diazotierten Chlortoluidins (CHs : NHa :
Cl = 1 : 2 : 5) von zum Beispiel 42 % Gehalt an Chlortoluidinbase bildet ein weisses, am Licht und beim Lagern sich bräunendes, gut haltbares, lösliches, unmittel bar zum Ausfärben grundierter Baumwolle geeignetes Diazosalzpräparat, das zweck mässig mit geeigneten, die Ausfärbungen, die Löslichkeit und die Haltbarkeit günstig be einflussenden Zusätzen und Färbereihilfsmit- teln, wie zum Beispiel Aluminiumsulfat oder Alaun,
arylsulfonsauren Metallsalzen und dergleichen noch auf einen handelsüblichen Diazogehalt eingestellt wird.
<I>Beispiel:</I> Eine aus 142 Teilen 5-Chlor-2-amino- 1-toluol in üblicher Weise hergestellte kon- zentrierte Lösung des Diazochlorids wird mit 185 Teilen 1 . 5 naphtalindisulfosaurem Na trium, Mol. Gew. 332, bis zur völligen Umset zung verrührt; dann wird abfiltriert und das Di-- azosalz bei mässiger Temperatur getrocknet und unter Umständen durch Vermischen mit ge eigneten 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. It has been found that a diazo salt preparation with good stability for dyeing and printing is obtained if the normally prepared mineral acid diazo salt solution of chlorotoluidine (CHs: NH2: Cl = 1: 2: 5) is reacted with a 1.5-naphthalene disulphonic acid metal salt.
The neutral 1,5-naphthalene disulfonate of diazotized chlorotoluidine (CHs: NHa:
Cl = 1: 2: 5) with a chlorotoluidine base content of 42%, for example, forms a white, easily durable, soluble, diazo salt preparation which is suitable for dyeing primed cotton and which can be used with suitable dyes , additives and dyeing auxiliaries that have a beneficial effect on solubility and shelf life, such as aluminum sulfate or alum,
arylsulfonic acid metal salts and the like is still set to a commercial Diazo content.
<I> Example: </I> A concentrated solution of the diazo chloride prepared in the usual way from 142 parts of 5-chloro-2-amino-1-toluene is mixed with 185 parts of 5 naphtalindisulfosaurem sodium, mol. Wt. 332, stirred until complete implementation; Then it is filtered off and the diazo salt is dried at a 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 |
---|---|---|---|
DE123663X | 1925-01-19 | ||
CH121789T | 1926-01-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH123663A true CH123663A (en) | 1927-12-16 |
Family
ID=25709780
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH123663D CH123663A (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) | CH123663A (en) |
-
1926
- 1926-01-18 CH CH123663D patent/CH123663A/en unknown
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