CH238449A - Process for the production of a metallizable dye. - Google Patents

Process for the production of a metallizable dye.

Info

Publication number
CH238449A
CH238449A CH238449DA CH238449A CH 238449 A CH238449 A CH 238449A CH 238449D A CH238449D A CH 238449DA CH 238449 A CH238449 A CH 238449A
Authority
CH
Switzerland
Prior art keywords
dye
production
parts
brown
amino
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 CH238449A publication Critical patent/CH238449A/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)
  • Coloring (AREA)

Description

  

      Zusatzpatent    zum     Hauptpatent    Nr.     23,6-583.            Terfahren    zur Herstellung eines     metallisierbaren        Farbstoffes.       Gegenstand des vorliegenden Patentes ist  ein Verfahren zur     Herstellung    eines     metal-          lisierbaren        Farbstoffes.    Das Verfahren ist  dadurch gekennzeichnet, dass der     äthylierte          Monoazofarbstof    f 4 -     Nitro    -     4'-        aminostilben-          2,

  2'-disulfonsäure->-Phenol    und der     Amino-          azofarbstoff        2-Amino-l-oxybenzol-4-sulfon-          säure>    .     m-Anisidin    in alkalischer Lösung  miteinander kondensiert werden.  



  Der neue     Farbstoff        stellt    in     gekupfertem     Zustand ein schwarzes Pulver dar. Dieses löst  sich in Wasser mit     rotbrauner,    in     konz.     Schwefelsäure mit violetter Farbe und färbt       Cellulosefasern    in lichtechten gelbbraunen  Tönen.

           i        Beispiel:       55,5 Teile des bekannten     äthylierten     Farbstoffes aus     diazotierter        4-Nitro-4'-amino-          Ftilben-2,2'-disulfonsäure    und Phenol und  26 Teile des Farbstoffes aus     diazotierter     2 -     Amino    -1-     oxybenzol    -4-     sulfonsäure    und  m-     Anisidin    werden in 140-0 Teilen Wasser  und 200 Teilen Natronlauge 3'6      Be    in be  kannter Weise kondensiert.

   Nach dem Ab  kühlen wird mit Salzsäure neutralisiert, mit    Kochsalz vollends ausgefällt,     abfiltriert    und  getrocknet.  



  Die     Kupferverbindung        des    Farbstoffes  kann erhalten werden, indem man ihn in  4000 Teilen Wasser löst, bei 80-90  mit  einer Lösung von 25 Teilen     krist.    Kupfer  sulfat in 100 Teilen Wasser     und    60 Teilen       25%igem    Ammoniak versetzt, 12-14 Stun  den bei 90  verrührt und den Farbstoff durch  Ausfällen mit Kochsalz isoliert.



      Additional patent to the main patent No. 23.6-583. A process for the production of a metallizable dye. The subject of the present patent is a process for the production of a metalizable dye. The method is characterized in that the ethylated monoazo dye f 4 - nitro - 4'- aminostilbene- 2,

  2'-disulfonic acid -> - phenol and the amino azo dye 2-amino-1-oxybenzene-4-sulfonic acid>. m-anisidine are condensed with one another in alkaline solution.



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

           i Example: 55.5 parts of the known ethylated dye from diazotized 4-nitro-4'-amino-Ftilben-2,2'-disulfonic acid and phenol and 26 parts of the dye from diazotized 2-amino-1-oxybenzene -4-sulfonic acid and m-anisidine are condensed in a known manner in 140-0 parts of water and 200 parts of sodium hydroxide solution 3'6 Be.

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



  The copper compound of the dye can be obtained by dissolving it in 4000 parts of water, crystallizing at 80-90 with a solution of 25 parts. Copper sulfate in 100 parts of water and 60 parts of 25% ammonia are added, the mixture is stirred for 12-14 hours at 90 and the dye is isolated by precipitation with sodium chloride.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines metalli- sierbaren Farbstoffes, dadurch gekennzeich net, dass der äthylierteMonoazofarbstoff 4-Ni- tro-4'-aminostilben-2,2'-disulfonsiäure-> Phe nol und der Aminoazofarbatoff 2-Amino-l- oxybenzol-4-sulfonsäure -<B>>-</B> m-Anisidin in alkalischer Lösung miteinander kondensiert werden. Der neue Farbstoff stellt in gekupfertem Zustand einschwarzes Pulver dar. PATENT CLAIM: Process for the production of a metallizable dye, characterized in that the ethylated monoazo dye 4-nitro-4'-aminostilbene-2,2'-disulfonic acid-> phenol and the aminoazo-carbate 2-amino-l-oxybenzene- 4-sulfonic acid - <B>> - </B> m-anisidine are condensed with one another in alkaline solution. The new dye is a black powder in the coppered state. Dieses löst sich in Wasser mit rotbrauner, in konz. Schwefelsäure mit violetter Farbe und färbt Gellulosefasern in lichtechten gelbbraunen Tönen. This dissolves in water with red-brown, in conc. Sulfuric acid with a violet color and dyes cellulose fibers in lightfast yellow-brown tones.
CH238449D 1942-12-22 1942-12-22 Process for the production of a metallizable dye. CH238449A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH238449T 1942-12-22
CH236583T 1942-12-22

Publications (1)

Publication Number Publication Date
CH238449A true CH238449A (en) 1945-07-15

Family

ID=25728124

Family Applications (1)

Application Number Title Priority Date Filing Date
CH238449D CH238449A (en) 1942-12-22 1942-12-22 Process for the production of a metallizable dye.

Country Status (1)

Country Link
CH (1) CH238449A (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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