CH123669A - 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
CH123669A
CH123669A CH123669DA CH123669A CH 123669 A CH123669 A CH 123669A CH 123669D A CH123669D A CH 123669DA CH 123669 A CH123669 A CH 123669A
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 CH123669A publication Critical patent/CH123669A/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       5-Nitro-2-amino-l-toluol    mit einem     1.5-naph-          talindisulfosauren    Metallsalz umsetzt.  



  Das so erhaltene neutrale     1.5-Naphtalin-          disulfonat    des     diazotierten        5-Nitro-2-amino-l-          toluols    von zum Beispiel 28      /o    Gehalt an       Nitrotoluidinbase    bildet ein     gelbbraunes,    gut  haltbares, lösliches, unmittelbar zum Ausfär  ben grundierter Baumwolle geeignetes     Diazo-          salzpräparat,    das zweckmässig mit geeigneten,  die Ausfärbungen, die Löslichkeit und die  Haltbarkeit günstig beeinflussenden Zusätzen  und     Färbereihilfsmitteln,    wie zum Beispiel  Aluminiumsulfat oder Alaun,

       arylsulfonsauren     Metallsalzen und dergleichen noch auf einen  handelsüblichen     Diazogehalt    eingestellt wird.    <I>Beispiel</I>    Eine aus 152 Teilen-     5-Nitro-2-amino-l-          toluol    in üblicher Weise hergestellte konzen  trierte Lösung des     Diazochlorids    wird mit    200 Teilen     1.5-naphtalindisulfosaurem    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 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 you can get a well durable. Diazo salt preparation for dyeing and printing is obtained if the normally prepared mineral acid diazo salt solution of 5-nitro-2-amino-1-toluene is reacted with a 1,5-naphthalenedisulfonic acid metal salt.



  The neutral 1,5-naphthalene disulfonate of the diazotized 5-nitro-2-amino-l-toluene obtained in this way with, for example, a nitrotoluidine base content of 28%, forms a yellow-brown, well-preserved, soluble diazotised salt preparation suitable immediately for dyeing primed cotton , expediently with suitable additives and dyeing auxiliaries, such as aluminum sulfate or alum, which have a beneficial effect on the color, the solubility and the shelf life,

       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 152 parts of 5-nitro-2-amino-l-toluene is trium with 200 parts of 1.5-naphthalene disulfonic acid, molecular weight 332, until complete conversion 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 Diazosalz- präparates für Färberei und Druckerei, dadurch gekennzeichnet, dass man die wie üblich her gestellte mineralsaure Diazosalzlösung von 5-Nitro-2-amino-l-toluol mit einem 1.5-naph- talindisulfosauren Metallsalz umsetzt. Claim: A process for the production of a diazo salt preparation for dyeing and printing, characterized in that the mineral acid diazo salt solution of 5-nitro-2-amino-1-toluene prepared as usual is reacted with a 1,5-naphthalenedisulfonic acid metal salt. Das so erhaltene neutrale 1.5-Naphtalin- disulfonat des diazotierten 5-Nitro-2-amino-l- toluols bildet ein gelbbraunes, gut haltbares, lösliches, unmittelbar zum Ausfärben grun dierter Baumwolle geeignetes Diazosalzprä- parat. UNTERANSPRÜCHE: 1. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man nach beendeter Reaktion noch einen Färbereihilfsstoff zu setzt. 2. The neutral 1,5-naphthalene disulfonate of the diazotized 5-nitro-2-amino-l-toluene obtained in this way forms a yellow-brown, well-preserved, soluble diazo salt preparation which is immediately suitable for coloring primed cotton. SUBClaims: 1. The method according to claim, characterized in that a dyeing auxiliary is added after the reaction has ended. 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. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man nach beendeter Reaktion noch ein arylsulfoiisaures 3Ietall- salz zusetzt. Process according to patent claim, characterized in that after the reaction has ended, aluminum sulfate is also added. 3. The method according to claim, characterized in that alum is added after the reaction has ended. 4. The method according to claim, characterized in that after the reaction has ended, an arylsulfoiisaures 3Ietall- salt is added.
CH123669D 1925-01-19 1926-01-18 Process for the production of a diazo salt preparation for dyeing and printing. CH123669A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE123669X 1925-01-19
CH121789T 1926-01-18

Publications (1)

Publication Number Publication Date
CH123669A true CH123669A (en) 1927-12-16

Family

ID=25709786

Family Applications (1)

Application Number Title Priority Date Filing Date
CH123669D CH123669A (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) CH123669A (en)

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