CH304606A - Process for the preparation of a metallizable monoazo dye. - Google Patents

Process for the preparation of a metallizable monoazo dye.

Info

Publication number
CH304606A
CH304606A CH304606DA CH304606A CH 304606 A CH304606 A CH 304606A CH 304606D A CH304606D A CH 304606DA CH 304606 A CH304606 A CH 304606A
Authority
CH
Switzerland
Prior art keywords
monoazo dye
dye
metallizable monoazo
preparation
metallizable
Prior art date
Application number
Other languages
German (de)
Inventor
Ag Sandoz
Original Assignee
Ag Sandoz
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 Ag Sandoz filed Critical Ag Sandoz
Publication of CH304606A publication Critical patent/CH304606A/en

Links

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
    • C09B29/00—Monoazo dyes prepared by diazotising and coupling
    • C09B29/02—Monoazo dyes prepared by diazotising and coupling from diazotised o-amino-hydroxy compounds
    • 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
    • C09B45/14—Monoazo compounds
    • C09B45/16—Monoazo compounds containing chromium

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

Description

  

  Verfahren zur     Herstellung    eines     metallisierbaren        Monoazofarbstoffes.       Gegenstand des vorliegenden Patentes ist  ein Verfahren zur Herstellung eines     metalli-          sierbaren        Monoazofarbstoffes,    das dadurch ge  kennzeichnet ist, dass     mann        1.Mol    dianotiertes     1-          Amino-2-oxy-5-methylsulfonylbenzol    mit 1     Mol          1-Acetylamino-8-oxynaphthalin    in dessen     7-          Stellung    kuppelt.  



  Zur Erzielung einer     Kupplung    des     Diazo-          körpers    in     7-Stellung    der     Azokomponente    wird  in konzentriert     ätzalkalischem    Medium gear  beitet.  



  Der so erhaltene Farbstoff ist neu und  eignet sich     zum    Färben von Wolle, Seide und  andern stickstoffhaltigen Fasern nach einem       Nachehromierungs-    oder nach einem     Eiribad-          chromierungsverfahren.    Er kann auch als in  Substanz metallisiertes Produkt verwendet  werden.  



  Im nachfolgenden Beispiel bedeuten die  Teile Gewichtsteile.  



  <I>Beispiel:</I>  19,2 Teile     1-Amino-2-oxy-5-methylsulfoilyl-          benzol    werden in 40 Teilen     Wasser    und  11 Teilen konzentrierter Salzsäure angerührt       rund    mit 7 Teilen     Natriumnitrit    bei 0-5  di  anotiert. Die     Diazoverbindung    wird mit 10 Tei  len Kochsalz     ausgesalzen,        abfiltriert,    gut ab  gepresst und unter kräftigem Rühren in eine       Mischung    aus 20 Teilen     1-Acetylamino-ä-oxy-          naphthalin    und 100 Teilen 34      higer    Natron  lauge bei 0  eingetragen.

   Nach beendigter  Kupplung wird der Farbstoff durch Verdün  nen der Masse mit Wasser und Neutralisation  mit Essigsäure abgeschieden und hernach ab-    filtriert. Er lässt sich durch Umfällen aus sehr  verdünnten     wässerigalkalischen    Lösungen rei  nigen.     Getrocknet.    ist er ein blauschwarzes  Pulver, welches Wolle     nachchromiert    -und  nach dein     Einbadchromierungsverfahren    in  reinen     violetten    Tönen mit guten Licht- und       Nassechtheiten    färbt. Der Farbstoff kann  auch in Substanz metallisiert werden. Seine       Chromkomplexverbindtutg    liefert wertvolle  Färbungen von sehr guten Eigenschaften.



  Process for the preparation of a metallizable monoazo dye. The subject of the present patent is a process for the production of a metallizable monoazo dye, which is characterized in that 1.Mol of dianotated 1-amino-2-oxy-5-methylsulfonylbenzene with 1-mole of 1-acetylamino-8-oxynaphthalene in it 7- position clutch.



  To achieve a coupling of the diazo body in the 7-position of the azo component, a concentrated caustic-alkaline medium is used.



  The dye obtained in this way is new and is suitable for dyeing wool, silk and other nitrogen-containing fibers according to a post-chromating or egg bath chromating process. It can also be used as a substance metallized product.



  In the following example, the parts are parts by weight.



  <I> Example: </I> 19.2 parts of 1-amino-2-oxy-5-methylsulfoilylbenzene are mixed in 40 parts of water and 11 parts of concentrated hydrochloric acid and anotized with 7 parts of sodium nitrite at 0-5 di. The diazo compound is salted out with 10 parts of sodium chloride, filtered off, pressed well and, with vigorous stirring, introduced into a mixture of 20 parts of 1-acetylamino-oxy-naphthalene and 100 parts of 34-hour sodium hydroxide solution.

   After coupling is complete, the dye is deposited by diluting the mass with water and neutralization with acetic acid and then filtered off. It can be cleaned by reprecipitation from very dilute aqueous alkaline solutions. Dried. it is a blue-black powder which re-chromates wool and, after your one-bath chroming process, dyes it in pure purple tones with good light and wet fastness properties. The dye can also be metallized in substance. Its chromium complex compound provides valuable colors with very good properties.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines metalli- sierbaren Monoazofarbstoffes, dadurch ge kennzeichnet, dass mann 1 11o1 .dianotiertes 1- .Llinino-2-oxy-5-methylsuifonylbenzol mit 1 Mol 1-Acetylamino-S-oxynaphthalin in dessen 7- Stellung kuppelt. PATENT CLAIM: Process for the production of a metallizable monoazo dye, characterized in that 1 11o1 .dianotated 1- .Llinino-2-oxy-5-methylsulfonylbenzene is coupled with 1 mole of 1-acetylamino-S-oxynaphthalene in its 7-position. Der neue metallisierbare Monoazofarbstoff ist ein blauschwarzes Pulver, welches Wolle nachehromiert und nach dem Einbadchromie- rungsverfahren in reinen violetten Tönen mit guten Licht und Nassechtheiten färbt. Der Farbstoff kann auch in Substanz metallisiert werden. Seine Ohromkomplea-verbindung lie fert wertvolle Färbungen von sehr guten Eigenschaften. UNTERANSPRUCH: Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass mann in konzentriert ätzalkalischein Medium arbeitet. The new metallizable monoazo dye is a blue-black powder that re-domains wool and dyes it in pure violet shades with good light and wet fastness properties using the single-bath chroming process. The dye can also be metallized in substance. Its auricular complex provides valuable colorations with very good properties. SUBClaim: Method according to claim, characterized in that one works in a concentrated caustic alkaline medium.
CH304606D 1952-02-05 1952-02-05 Process for the preparation of a metallizable monoazo dye. CH304606A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH304606T 1952-02-05
CH301815T 1952-02-05

Publications (1)

Publication Number Publication Date
CH304606A true CH304606A (en) 1955-01-15

Family

ID=25734441

Family Applications (1)

Application Number Title Priority Date Filing Date
CH304606D CH304606A (en) 1952-02-05 1952-02-05 Process for the preparation of a metallizable monoazo dye.

Country Status (1)

Country Link
CH (1) CH304606A (en)

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