CH123638A - 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
- CH123638A CH123638A CH123638DA CH123638A CH 123638 A CH123638 A CH 123638A CH 123638D A CH123638D A CH 123638DA CH 123638 A CH123638 A CH 123638A
- Authority
- CH
- Switzerland
- Prior art keywords
- dyeing
- reaction
- ended
- added
- 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 Diazosalz- lösung von Chlortoluidin (CH, : NH, : C1 = 1 : 2 : 4) mit einem 1.5-naphtalindi- sulfosauren Metallsalz umsetzt.
Das so erhaltene neutrale 1. 5-Naphtalin- disulfonat des diazotierten Chlortoluidins von z. B. 42 % Gehalt an Chlortoluidinbase bildet ein weisses, sich am Licht bräunendes, gut haltbares, lösliches, unmittelbar zum Ausfärben grundierter Baumwolle geeignetes Diazosalzpräparat, das zweckmässig mit- ge eigneten, die Ausfärbungen, die Löslichkeit und die Haltbarkeit günstig beeinflussenden Zusätzen und Färbereihilfsmitteln, wie z. B.
Aluminiumsulfat, Alaun, arylsixlfonsauren Metallsalzen und dergleichen, noch auf einen handelsüblichen Diazogehalt eingestellt wird.
Beispiel Eine aus 142 Teilen 4-Chlor-2-amino-l- toluol in üblicher Weise hergestellte kon- zentrierte Lösung des Diazochlorids wird mit 185 Teilen 1. 5-naphtalinclisulf osaurem Na trium, Mol.-Gewicht 832, bis zur völligen Umsetzung verrührt; dann wird abfiltriert und das Diazosalz bei mässiger Temperatur getrocknet und unter Um_ ständen durch Ver mischen mit geeigneten Färbereihilfsstoffen in handelsfertige Form gebracht.
Diese Zu sätze können auch dem noch feuchten Di- azosalz 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 normally prepared mineral acid diazo salt solution of chlorotoluidine (CH,: NH,: C1 = 1: 2: 4) with a 1.5-naphthalene disulfonic acid Metal salt converts.
The neutral 1.5-naphthalene disulfonate of the diazotized chlorotoluidine obtained in this way from z. B. 42% content of chlorotoluidine base forms a white, light-browning, long-lasting, soluble, diazo salt preparation suitable for dyeing primed cotton, which is also suitable, additives and dyeing auxiliaries that have a beneficial effect on the coloration, solubility and shelf life, such as B.
Aluminum sulfate, alum, arylsixlfonsauren metal salts and the like, is still adjusted to a commercial Diazo content.
EXAMPLE A concentrated solution of the diazo chloride prepared in the customary manner from 142 parts of 4-chloro-2-amino-l-toluene is stirred with 185 parts of 1.5-naphthalene-disulfate sodium, mol. Weight 832, until the reaction is complete ; 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 |
---|---|---|---|
DE123638X | 1925-01-19 | ||
CH121789T | 1926-01-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH123638A true CH123638A (en) | 1927-12-01 |
Family
ID=25709755
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH123638D CH123638A (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) | CH123638A (en) |
-
1926
- 1926-01-18 CH CH123638D patent/CH123638A/en unknown
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