CH123645A - 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
CH123645A
CH123645A CH123645DA CH123645A CH 123645 A CH123645 A CH 123645A CH 123645D A CH123645D A CH 123645DA CH 123645 A CH123645 A CH 123645A
Authority
CH
Switzerland
Prior art keywords
dyeing
ended
added
diazo salt
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 CH123645A publication Critical patent/CH123645A/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     Diazosalzlösung    von       4-Nitro-2-amino-l-toluol    mit einem     1.5-naph-          talindisulfosauren    Metallsalz umsetzt.  



  Das so erhaltene neutrale     1.5-Naphtalin-          disulfonat    des     diazotierten        Nitrotoluidins    von       zum        Beispiel        28        %        Gehalt        an        Nitrotoluidin-          base    bildet ein fast weisses, 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.

    <I>Beispiel:</I>     _     Eine aus 152 Teilen     4-Nitro-2-amino-l-          toluol    in üblicher Weise hergestellte konzen-         trierte    Lösung des     Diazochlorids    wird mit  200 Teilen     1.5-naphtalindisulfosaureni    Na  trium,     Molekulargewicht    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 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 conventionally prepared mineral acid diazo salt solution of 4-nitro-2-amino-1-toluene is reacted with a 1,5-naphthalenedisulfonic acid metal salt.



  The neutral 1,5-naphthalene disulfonate of diazotized nitrotoluidine obtained in this way, for example with a nitrotoluidine base content of 28%, forms an almost white, well-preserved, soluble diazo salt preparation suitable for dyeing primed cotton, which is conveniently combined with suitable dyeings ,

   the solubility and durability of additives and dyeing auxiliaries, such as aluminum sulfate or alum, aryl sulfonic acid metal salts and the like, which have a beneficial effect on a commercial diazo content, is adjusted.

    <I> Example: </I> _ A concentrated solution of the diazo chloride prepared in the usual way from 152 parts of 4-nitro-2-amino-l-toluene is mixed with 200 parts of 1.5-naphthalenedisulfosaureni sodium, molecular weight 332, up to complete implementation stirred; 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)

PATENTANSPRUCH: Verfahren zur Herstellung eines Diazo- salzpräparates für Färberei und Druckerei, dadurch gekennzeichnet, dass man die,, wie üblich hergestellte mineralsaure Diazosalz- lösung von 4.-Nitro-2-amino-l-toluol mit einem 1.5-naphtalindisulfosauren Metallsalz umsetzt. 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 4-nitro-2-amino-1-toluene is reacted with a 1.5-naphthalene disulphonic acid metal salt. Das so erhaltene neutrale 1.5-Näphtalin- disulfonat des diazotierten Nitrotoluidins bil det ein fast weisses, gut haltbares, lösliches, unmittelbar zum Ausfärben grundierter Baum wolle geeignetes Diazosalzpräparat. ÜNTNRANSPRt?CFIP, 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 nitrotoluidine thus obtained forms an almost white, easily durable, soluble diazo salt preparation that is immediately suitable for coloring primed cotton. ÜNTNRANSPRt? CFIP, 1. Method according to claim, characterized in that a dyeing auxiliary is added after the reaction has ended. puts. 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.
CH123645D 1925-01-19 1926-01-18 Process for the production of a diazo salt preparation for dyeing and printing. CH123645A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE123645X 1925-01-19
CH121789T 1926-01-18

Publications (1)

Publication Number Publication Date
CH123645A true CH123645A (en) 1927-12-01

Family

ID=25709762

Family Applications (1)

Application Number Title Priority Date Filing Date
CH123645D CH123645A (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) CH123645A (en)

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