CH123641A - 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.

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Publication number
CH123641A
CH123641A CH123641DA CH123641A CH 123641 A CH123641 A CH 123641A CH 123641D A CH123641D A CH 123641DA CH 123641 A CH123641 A CH 123641A
Authority
CH
Switzerland
Prior art keywords
dyeing
ended
added
reaction
diazo salt
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellsc Farbenindustrie
Original Assignee
Ig Farbenindustrie Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ig Farbenindustrie Ag filed Critical Ig Farbenindustrie Ag
Publication of CH123641A publication Critical patent/CH123641A/en

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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     p-Chlor-o-nitroanilin    mit einem       l.5-naphtalindisulfosauren    Metallsalz um  setzt.  



  Das so erhaltene neutrale 1.     5-Naphtalin-          disulfonat    des     diazotierten        Chlornitroanilins     von z. B. W /o Gehalt an     Chlornitroanilinbase     bildet ein gelbes, gut haltbares, lösliches, un  mittelbar zum Ausfärben grundierter Baum  wolle geeignetes     Diazosalzpräparat,    das  zweckmässig mit geeigneten, die Ausfärbun  gen, die Löslichkeit und die Haltbarkeit  günstig beeinflussenden Zusätzen und     Fär-          bereihilfsmitteln,    wie zum Beispiel Alumi  niumsulfat oder Alaun,     arylsulfonsauren    Me  tallsalzen und dergleichen,

   noch auf einen  handelsüblichen     Diazogehalt    eingestellt wird.       Beispiel     Eine aus 173 Teilen     4-Chlor-2-nitro-l-          anilin    in üblicher Weise hergestellte konzen-         trierte    Lösung des     Diazochlorids    wird mit  190 Teilen     1.5-naphtalindisulfosaurem    Na  trium, Hol.-Gewicht 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 Zu  sätze können auch dem noch feuchten     D.iazo-          salz    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 conventionally prepared mineral acid diazo salt solution of p-chloro-o-nitroaniline is reacted with a 1.5-naphthalene disulphonic acid metal salt.



  The neutral 1. 5-naphthalene disulfonate of the diazotized chloronitroaniline of z. B. W / o content of chloronitroaniline base forms a yellow, long-lasting, soluble, directly suitable for coloring primed cotton diazo salt preparation, which is useful with additives and dyeing auxiliaries that have a beneficial effect on coloring, solubility and shelf life, such as For example aluminum sulfate or alum, aryl sulfonic acid metal salts and the like,

   is still set to a commercially available Diazo content. EXAMPLE A concentrated solution of the diazo chloride prepared in the customary manner from 173 parts of 4-chloro-2-nitro-l-aniline is stirred with 190 parts of sodium 1,5-naphthalene-disulphonate, weight 332, until 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 D. azo salt.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Diazo- salzpräparates für Färberei und Druckerei, dadurch gekennzeichnet, dass man die wie üblich hergestellte mineralsaure Diazosalz- lösung von p-Chlor-o-nitroanilin mit einem 1.5-naphtalindisulfosauren Metallsalz um setzt. PATENT CLAIM: Process for the production of a diazo salt preparation for dyeing and printing, characterized in that the normally produced mineral acid diazo salt solution of p-chloro-o-nitroaniline is implemented with a 1.5-naphthalene disulphonic acid metal salt. Das so erhaltene neutrale 1. 5-Naphtalin- disulfonat des diazotierten Chlornitroanilins bildet ein gelbes, gut haltbares, lösliches, un mittelbar zum Ausfärben grundierter Baum molle geeignetes Diazosalzpräparat. UNTERANSPRÜCHE: 1. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man nach beendeter Reaktion noch einen rärbereihilfsstoff zu setzt. The neutral 1,5-naphthalene disulphonate of the diazotized chloronitroaniline thus obtained forms a yellow, well-preserved, soluble, and directly suitable for coloring primed tree molle diazo salt preparation. SUBClaims: 1. Method according to claim, characterized in that, after the reaction has ended, a dyeing additive is added. ?. Verfahren nach Patentanspruch, dadurch ()'e-(- nnzeichnet, dass man nach beendeter Reaktion noch Aluminiumsulfat zusetzt. 3. Verfahren nach Patentanspruch, dadurch sekennzeiehnet, dass man nach beendeter Reaktion noch Alaun zusetzt. 1. Verfahren nach Patentanspruch, dadurch ekennzeiehnet, dass man nach beendeter Reaktion noch ein arvlulfonsaures He- tallsalz zusetzt. ?. Process according to claim, characterized in that aluminum sulfate is added after the reaction has ended. 3. Process according to claim, characterized in that alum is added after the reaction has ended. 1. Process according to claim, characterized in that that after the reaction has ended, a sulfonic acid metal salt is added.
CH123641D 1925-01-19 1926-01-18 Process for the production of a diazo salt preparation for dyeing and printing. CH123641A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE123641X 1925-01-19
CH121789T 1926-01-18

Publications (1)

Publication Number Publication Date
CH123641A true CH123641A (en) 1927-12-01

Family

ID=25709758

Family Applications (1)

Application Number Title Priority Date Filing Date
CH123641D CH123641A (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) CH123641A (en)

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