CH90836A - Process for the preparation of a substantive o-oxyazo dye. - Google Patents

Process for the preparation of a substantive o-oxyazo dye.

Info

Publication number
CH90836A
CH90836A CH90836DA CH90836A CH 90836 A CH90836 A CH 90836A CH 90836D A CH90836D A CH 90836DA CH 90836 A CH90836 A CH 90836A
Authority
CH
Switzerland
Prior art keywords
dye
oxyazo
substantive
amino
diazotized
Prior art date
Application number
Other languages
German (de)
Inventor
Gesellschaft Fuer Chemis Basel
Original Assignee
Chem Ind Basel
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 Chem Ind Basel filed Critical Chem Ind Basel
Publication of CH90836A publication Critical patent/CH90836A/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B35/00—Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
    • C09B35/02—Disazo dyes
    • C09B35/039—Disazo dyes characterised by the tetrazo component
    • C09B35/04—Disazo dyes characterised by the tetrazo component the tetrazo component being a benzene derivative
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B45/00—Complex metal compounds of azo dyes
    • C09B45/02—Preparation from dyes containing in o-position a hydroxy group and in o'-position hydroxy, alkoxy, carboxyl, amino or keto groups
    • C09B45/24—Disazo or polyazo compounds
    • C09B45/28—Disazo or polyazo compounds containing copper

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)

Description

  

  Zusatzpatent zum Hauptpatent     Nr.   <B>90478. -</B>    Verfahren zur Herstellung eines direktziehenden     o-Oxyazofarbstoffes.       Es wurde gefunden,<B>'</B>     dass    durch Kuppeln  von     diazotiertem        2-Amino-4-c.hlor-5-nitro-l-          oxybenzol    mit     2-Oxynaphtaliii-3:

  6-disulfo-          säure,    Reduzieren,     Diazotieren    und- Kuppeln  mit     1-Metlioxyw2-ainino-4-methylbenzol-des    er  haltenen     Monoazofarbstoffes    ein     dipektziehen-          der        o-Oxyazofarbstoff    erhalten wird, welcher  Baumwolle in licht- und     alkaliempfindlichen,          grünstichig    blauen Tönen anfärbt.

   Durch  Nachkupfern oder durch Färben in der für       direktziellende    Farbstoffe, üblichen W eise  unter Zusatz von Kupferverbindungen<B>zum</B>  Bade werden hervorragend licht- und     alkali-          echte,    grün     stichig    blaue Töne erhalten.  



  <I>Beispiel:</I>  <B>18,9 kg</B>     2-Amiiio-4-chlor-5- nitro-l-oxybeii-          zol    werden auf übliche Weise     diazotiert.    Die       Diazoverbindung        lässt        man    einlaufen in eine  Lösung von 34,8<B>kg</B> 2<B>- A -</B>     6-Naphtoldistilfo-          säure    Lind<B>30 kg</B> Soda.

   Nach 24     Stunden-          wird    auf<B>60 0</B> erwärmt, mit einer Lösung von       36   <B>kg</B> kristallisiertem Schwefelnatrium     Vera     setzt<B>-</B> und nach     1/,2-stündigem    Rühren der    Farbstoff durch<B>-</B> Zusatz von Kochsalz     und-          Salzsätire    bis zum Verschwinden der alka  lischen     Reakti        on    gefällt. Man filtriert,     presst,     löst wieder in<B>500</B> Liter Wasser, -versetzt  nach dem Abkühlen mit<B>7,2 kg</B>     Natrium-          nitrit    und säuert mit<B>50 kg</B> Salzsäure an.

    Nach     1-stütidigein.Rühren        lässt    man die     Diazo-          verbindung    einlaufen<B>'</B> in eine Lösung von  <B>13,8 kg</B>     1-Methoxy-2        amino-4-methylbenzol,

            13        kg        Salzsäure        von        30%        und        500        Liter     Wasser und versetzt allmählich mit einer  Lösung -von<B>30 kg</B> kristallisiertem     Natrium-          acetat.-    Nach 24     Stunden*    wird alkalisch ge  macht und     ausgesalzen.  



  Additional patent to main patent no. <B> 90478. - Process for the preparation of a substantive o-oxyazo dye. It was found that by coupling diazotized 2-amino-4-chloro-5-nitro-l-oxybenzene with 2-oxynaphtaliii-3:

  6-disulphonic acid, reducing, diazotizing and coupling with 1-metlioxyw2-ainino-4-methylbenzene-the monoazo dye obtained is a dipectic o-oxyazo dye which dyes cotton in light- and alkali-sensitive, greenish blue tones.

   By re-coppering or by dyeing in the manner customary for direct-targeting dyes with the addition of copper compounds <B> to </B> the bath, excellent lightfast and alkaline-fast, greenish blue tones are obtained.



  <I> Example: </I> <B> 18.9 kg </B> 2-Amiiio-4-chloro-5-nitro-l-oxybeiizole are diazotized in the usual way. The diazo compound is allowed to run into a solution of 34.8 kg 2 - A - 6-naphtholedistilfoic acid and 30 kg of soda.

   After 24 hours, it is heated to <B> 60 0 </B>, with a solution of 36 <B> kg </B> crystallized sulfur sodium vera sets <B> - </B> and after 1 /, 2 hours Stir the dye by adding table salt and salt saturation until the alkaline reaction disappears. It is filtered, pressed, dissolved again in <B> 500 </B> liters of water, mixed with <B> 7.2 kg </B> sodium nitrite after cooling and acidified with <B> 50 kg </ B > Hydrochloric acid.

    After stirring for 1 hour, the diazo compound is allowed to run <B> '</B> into a solution of <B> 13.8 kg </B> 1-methoxy-2 amino-4-methylbenzene,

            13 kg of hydrochloric acid of 30% and 500 liters of water and gradually mixed with a solution of <B> 30 kg </B> crystallized sodium acetate.- After 24 hours * it is made alkaline and salted out.

Claims (1)

<B>PATENTANSPRUCH</B> Verfahren zur Herstellung<B>-</B>eines direkt ziehenden o-Oxyazofarbstoffes, dadurch ge kennzeichnet, dass diazotiertes 2-Ainiiio-4- chlor-5-iiitro-l-oxybenzol mit 2-Oxyi)aphtalin-- 3: 6-disulfosäure gekuppelt wird<B>-</B> und der resultierende. Monoazofarbstoh reduziert, dia- zotiert und mit 1-Methoxy-2-ami-no-4-methyl- benzol kombiniert wird. <B> PATENT CLAIM </B> Process for the production <B> - </B> of a direct o-oxyazo dye, characterized in that diazotized 2-amino-4-chloro-5-nitro-l-oxybenzene with 2- Oxyi) aphtalin-- 3: 6-disulfonic acid is coupled <B> - </B> and the resulting. Monoazo dye is reduced, diazotized and combined with 1-methoxy-2-amino-4-methylbenzene. Der erhalten.e Oxy- azotarbstoff färbt Baumwolle direkt in licht- und alkaliempfindlichen, 'grünstichig blauen Tönen, Durch Nachkupfern oder durch Färben in der für direktziehende Farbstoffe üblichen Weise unter Zusatz von Kupferverbindungen zum Bade werden hervorragend licht- und alkaliechte, grünstichig blaue- Töne erhalten. The oxyazo dye obtained dyes cotton directly in light- and alkali-sensitive, greenish blue tones. By copying or by dyeing in the manner customary for substantive dyes with the addition of copper compounds to the bath, excellent light- and alkali-fast, greenish blue tones are achieved receive.
CH90836D 1918-02-02 1918-02-02 Process for the preparation of a substantive o-oxyazo dye. CH90836A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH90836T 1918-02-02
CH90478T 1918-02-02

Publications (1)

Publication Number Publication Date
CH90836A true CH90836A (en) 1921-10-01

Family

ID=25704183

Family Applications (1)

Application Number Title Priority Date Filing Date
CH90836D CH90836A (en) 1918-02-02 1918-02-02 Process for the preparation of a substantive o-oxyazo dye.

Country Status (1)

Country Link
CH (1) CH90836A (en)

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