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CH238447A - Process for the production of a metallizable dye. - Google Patents

Process for the production of a metallizable dye.

Info

Publication number
CH238447A
CH238447A CH238447DA CH238447A CH 238447 A CH238447 A CH 238447A CH 238447D A CH238447D A CH 238447DA CH 238447 A CH238447 A CH 238447A
Authority
CH
Switzerland
Prior art keywords
dye
production
parts
brown
acid
Prior art date
Application number
Other languages
German (de)
Inventor
Ag J R Geigy
Original Assignee
Ag J R Geigy
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 J R Geigy filed Critical Ag J R Geigy
Publication of CH238447A publication Critical patent/CH238447A/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
    • C09B56/00—Azo dyes containing other chromophoric systems
    • C09B56/04—Stilbene-azo dyes

Landscapes

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

Description

  

  Verfahren zur Herstellung eines     metallisierbaren    Farbstoffes.    Gegenstand des vorliegenden Patentes ist  ein Verfahren zur Herstellung eines     metalli-          sierbaren    Farbstoffes. Das Verfahren ist da  durch gekennzeichnet, dass die     Monoazofarb-          stoffe        4-Nitro-4'-aminostilben-2,2'-disulfon-          säure        ->        Salicylsäure    und     4-Chlor-2-amino-          1-ogybenzol->-m-Anisidin    in alkalischer Lö  sung miteinander kondensiert werden.  



  Der neue Farbstoff stellt in     gekupfertem     Zustand ein fast schwarzes Pulver dar. Dieses  löst sich in Wasser mit     rotbrauner,        in        conc.     Schwefelsäure mit blauer Farbe und färbt       Cellulosefasern    in lichtechten braunen Tönen.

    <I>Beispiel:</I>  57,1 Teile des Farbstoffes aus     diazotierter          4-Nitro-4'-aminostilben-2,2'-disulfonsäure    und       Salicylsäure    und 25 Teile des Farbstoffes aus       diazotiertem        4-Chlor-2-amino-l-ogybenzol    und       m-Anisidin    werden in 1000 Teilen Wasser  und 300 Teilen Natronlauge     36         B6    14 bis  16 Stunden bei Siedetemperatur unter Rück-         fluss    kondensiert.

   Nach dem Abkühlen wird  mit Salzsäure neutralisiert, mit     Kochsalzvoll-          ends    ausgefällt,     abfiltriert    und     getrocknet.     



  Die     Kupferverbindung    des. Farbstoffes       kann    erhalten werden, indem man ihn in 4000  bis 5000 Teilen Wasser und 150 Teilen     conc.          Ammoniak    löst,     mit    einer     Lösung    von 25 Tei  len Kupfersulfat in 100 Teilen Wasser ver  setzt und 10-14 Stunden bei 90-95  ver  rührt. Die     Kupferverbindung    wird durch  Ausfällen mit Kochsalz isoliert.     Ein    etwas  besser lösliches Produkt wird erhalten,     wenn     man die     Kupferung    in Gegenwart eines     Di-          spergierungsmittels,    wie z.

   B. 100 Teile was  serlösliches     Caseinabbauprodukt,    durchführt.



  Process for the production of a metallizable dye. The present patent relates to a process for producing a metallizable dye. The process is characterized in that the monoazo dyes 4-nitro-4'-aminostilbene-2,2'-disulfonic acid -> salicylic acid and 4-chloro-2-amino-1-ogybenzene -> - m-anisidine be condensed with one another in alkaline solution.



  The new dye is an almost black powder in the coppered state. This dissolves in water with red-brown, in conc. Sulfuric acid with a blue color and dyes cellulose fibers in lightfast brown tones.

    <I> Example: </I> 57.1 parts of the dye from diazotized 4-nitro-4'-aminostilbene-2,2'-disulfonic acid and salicylic acid and 25 parts of the dye from diazotized 4-chloro-2-amino-1 -ogybenzene and m-anisidine are condensed in 1000 parts of water and 300 parts of sodium hydroxide solution 36 B6 for 14 to 16 hours at the boiling point under reflux.

   After cooling, it is neutralized with hydrochloric acid, completely precipitated with common salt, filtered off and dried.



  The copper compound of the dye can be obtained by adding it to 4000 to 5000 parts of water and 150 parts of conc. Dissolves ammonia, ver with a solution of 25 Tei len copper sulfate in 100 parts water and stirred for 10-14 hours at 90-95 ver. The copper compound is isolated by precipitation with common salt. A slightly more soluble product is obtained if the coppering is carried out in the presence of a dispersing agent, such as.

   B. 100 parts of what ser-soluble casein degradation product performs.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines metalli- sierbaren Farbstoffes, dadurch gekennzeich net, dass die Monoazofarbstoffe 4-Nitro-4'- aminostilben-2,2'-disulfonsäure -> Salicyl- säure und 4-Chlor-2-amino-l-ogybenzol --> m-Anisidin in alkalischer Lösung miteinander kondensiert werden. Der neue Farbstoff stellt in gekupfertem Zustand ein fast schwarzes Pulver dar. PATENT CLAIM: A process for the production of a metallizable dye, characterized in that the monoazo dyes 4-nitro-4'-aminostilbene-2,2'-disulfonic acid -> salicylic acid and 4-chloro-2-amino-1-ogybenzene -> m-anisidine are condensed with one another in an alkaline solution. When coppered, the new dye is an almost black powder. Dieses löst sich in Wasser mit rotbrauner, in cone. Schwefelsäure mit blauer Farbe und färbt Cellulosefasern in lichtechten braunen Tönen. This dissolves in water with red-brown, in cone. Sulfuric acid with a blue color and dyes cellulose fibers in lightfast brown tones.
CH238447D 1942-12-22 1942-12-22 Process for the production of a metallizable dye. CH238447A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH236583T 1942-12-22
CH238447T 1942-12-22

Publications (1)

Publication Number Publication Date
CH238447A true CH238447A (en) 1945-07-15

Family

ID=25728122

Family Applications (1)

Application Number Title Priority Date Filing Date
CH238447D CH238447A (en) 1942-12-22 1942-12-22 Process for the production of a metallizable dye.

Country Status (1)

Country Link
CH (1) CH238447A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE921277C (en) * 1951-04-28 1954-12-13 Ciba Geigy Process for the production of copper-containing azo dyes of the stilbene series

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE921277C (en) * 1951-04-28 1954-12-13 Ciba Geigy Process for the production of copper-containing azo dyes of the stilbene series

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