CH123640A - 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
CH123640A
CH123640A CH123640DA CH123640A CH 123640 A CH123640 A CH 123640A CH 123640D A CH123640D A CH 123640DA CH 123640 A CH123640 A CH 123640A
Authority
CH
Switzerland
Prior art keywords
dyeing
diazo salt
ended
added
reaction
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 CH123640A publication Critical patent/CH123640A/en

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Description

  

      Yerfahren    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       m-Nitroanilin    mit einem     1.5-naphtalindisulfo-          sauren    Metallsalz umsetzt.  



  Das so erhaltene neutrale     1.5-Naphtalin-          disulfonat    des     diazotierten        Nitroanilins-    von  zum Beispiel 37 % Gehalt an     Nitroanilin-          base    bildet ein bräunliches, gut haltbares,  lösliches, unmittelbar zum Ausfärben grun  dierter Baumwolle geeignetes     Diazosalzprä-          parat,    das zweckmässig mit geeigneten,     die     Ausfärbungen, die Löslichkeit und die Halt  barkeit günstig beeinflussenden Zusätzen und       Färbereihilfsmitteln,    wie zum Beispiel Alu  miniumsulfat oder Alaun,

       arylsulfonsauren     Metallsalzen und dergleichen, noch auf einen  handelsüblichen     Diazogehalt    eingestellt wird.       ,Beispiel:     Eine aus 138 Teilen     m-Nitroanilin    in  üblicher Weise hergestellte konzentrierte Lö-         sung    des     Diazochlorids    wird mit 180 Teilen  1.     5-naphtalindisulfosaurem    Natrium,     Moleku-          largewicht    332, bis zur völligen Umsetzung  verrührt;

   dann wird     abfiltriert    und das     Di-          azosalz    bei mässiger Temperatur getrocknet  und unter Umständen durch Vermischen mit  geeigneten     Färbereihilfsstoffen    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 m-nitroaniline is reacted with a 1,5-naphthalene disulphonic acid metal salt.



  The neutral 1,5-naphthalene disulfonate of the diazotized nitroaniline, for example 37% content of nitroaniline base, which is obtained in this way, forms a brownish, easily durable, soluble diazo salt preparation which is suitable for dyeing primed cotton and which is conveniently combined with suitable dyeings , 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 adjusted to a commercial Diazo content. Example: A concentrated solution of the diazo chloride prepared in the usual way from 138 parts of m-nitroaniline is stirred with 180 parts of 1.5-naphthalene-disulphonic acid, molecular weight 332, 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 auxiliaries. These additives can also be added to the still moist diazo 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 m-Nitroanilin mit einem 1.5 naphtalindisulfosauren Metallsalz umsetzt. PATENT CLAIM: A 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 m-nitroaniline is reacted with a 1.5 naphthalene disulfonic acid metal salt. Das so erhaltene neutrale 1.5-Naphtalin- disulfonat des diazotierten Nitroanilins bildet ein bräunliches, gut haltbares, lösliches, un mittelbar zum Ausfärben grundierter Baum wolle geeignetes Diazosalzpräparat. - UNTERANSPRÜCHE: 1. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man nach beendeter Reaktion noch einen Färbereihilfsstoff zu setzt. 2. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man nach beendeter Reaktion noch Aluminiumsulfat zusetzt. 3. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man nach beendeter Reaktion noch Alaun zusetzt. 4. The neutral 1,5-naphthalene disulfonate of the diazotized nitroaniline obtained in this way forms a brownish, easily durable, soluble diazo salt preparation that is immediately suitable for coloring primed cotton. SUBClaims: 1. Method according to claim, characterized in that a dyeing auxiliary is added after the reaction has ended. 2. The method according to claim, characterized in that aluminum sulfate is added after the reaction has ended. 3. The method according to claim, characterized in that alum is added after the reaction has ended. 4th Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man nach beendeter Reaktion noch ein arylsulfonsaures Metall salz zusetzt. Process according to patent claim, characterized in that, after the reaction has ended, an arylsulphonic acid metal salt is added.
CH123640D 1925-01-19 1926-01-18 Process for the production of a diazo salt preparation for dyeing and printing. CH123640A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE123640X 1925-01-19
CH121789T 1926-01-18

Publications (1)

Publication Number Publication Date
CH123640A true CH123640A (en) 1927-12-01

Family

ID=25709757

Family Applications (1)

Application Number Title Priority Date Filing Date
CH123640D CH123640A (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) CH123640A (en)

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