CH91275A - Process for the preparation of an acidic dye containing chromium. - Google Patents

Process for the preparation of an acidic dye containing chromium.

Info

Publication number
CH91275A
CH91275A CH91275DA CH91275A CH 91275 A CH91275 A CH 91275A CH 91275D A CH91275D A CH 91275DA CH 91275 A CH91275 A CH 91275A
Authority
CH
Switzerland
Prior art keywords
chromium
preparation
dye
acidic dye
acid
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 CH91275A publication Critical patent/CH91275A/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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

       

  Verfahren zur Darstellung eines     chromhaltigen        sauren        Farbstoffes.       Es wurde gefunden, dar     rnan    den     rnetall-          empfindlichen        Azofarbstoff    aus der     brornierten          Diazoverbindung    der     1-Arnino-2-oxyrraplrtalirr-          4-sulfosäure    und     u-Naphtol    durch Behandeln  mit den     chromhaltigen        Komplexverbindungen,

       welche durch     Einwirkung    von     hydroxylgrup-          penhaltigen    organischen Verbindungen auf  alkalische     Chromhydroxydsuspensionen    erhal  ten werden, in einen     chromhaltigen    sauren       Farbstoff    überführen kann, welcher das Chrom  in maskierter Bindung enthält, indem das  selbe aus der wässerigen Lösung durch Soda,  Natronlauge oder Ammoniak nicht gefällt  wird. Der     Farbstoff    ist wasserlöslich, säure  beständig, nicht     kupfererrrpfindlich    und färbt  animalische Fasern aus saurem Bad in blauen,  walk- und lichtechten Tönen an.  



  <I>Beispiel</I>  In 600 Teilen einer     Chronihydroxydlry-          dratpaste,    enthaltend 76,5 Teile     Cr=03,    löst  man unterhalb<B>700</B> 267 Teile     Ätzkali.    Hier  auf gibt man 90 Teile Glyzerin hinzu und  erhitzt zum Kochen, bis vollständige Lösung  eingetreten ist.

   Sodann     -,erdünnt    man auf    <B>1100</B>     Voluniteile,    versetzt mit     173    Teilen des       FarbstQffes    aus der     bromiurten        Diazoverbirr-          dung    der     1-Amino-2-ox3-naphtalin--l-ulfosäure     und     a-Naphtol    und     kocht    das     Ganze    einige  Stunden am     Riichflrrsskiililei#    weiter,

   bis der       Farbstoff    vollständig in seine     Chromverbin-          dung        übergegangen    ist. Ist dies erreicht. so  verdünnt     man    mit     3300    Teilen kaltem Was  ser und salzt den     entstandenen    Farbstoff aus,       nachdem    der     tltzall@aliüberschul:,    mit     -Mineral-          säure    neutralisiert worden ist.

   Statt     (xlyzerin          können    auch andere     hydroxylgruppenhaltige     organische     Verbindungen    wie     Clly-hol,        Tannin,          Gallussäure,        Zuckerarten,    Kohlenhydrate, ver  wendet werden.



  Process for the preparation of an acidic dye containing chromium. It has been found that the metal-sensitive azo dye from the brominated diazo compound of 1-amino-2-oxyrrapidal-4-sulfonic acid and u-naphthol by treatment with the chromium-containing complex compounds,

       which are obtained by the action of hydroxyl group-containing organic compounds on alkaline chromium hydroxide suspensions, can be converted into a chromium-containing acidic dye which contains the chromium in masked bond, as the same is not precipitated from the aqueous solution by soda, sodium hydroxide or ammonia. The dye is water-soluble, acid-resistant, not sensitive to copper and stains animal fibers from an acid bath in blue, mill-fast and light-fast shades.



  <I> Example </I> In 600 parts of a chronihydroxydrate paste containing 76.5 parts of Cr = 03, <B> 700 </B> 267 parts of caustic potash are dissolved. 90 parts of glycerine are added and the mixture is heated to a boil until it has completely dissolved.

   Then -, you dilute to <B> 1100 </B> parts by volume, add 173 parts of the coloring agent from the brominated diazo compound of 1-amino-2-ox3-naphthalene-l-sulfonic acid and a-naphthol and boil it Whole a few hours on the Riichflrrrsskiilei #,

   until the dye has completely converted into its chromium compound. Is this achieved. so you dilute with 3300 parts of cold water and salt out the resulting dye, after the tltzall @ aliüberul :, has been neutralized with mineral acid.

   Instead of (xlycerin), other organic compounds containing hydroxyl groups, such as cyllyhol, tannin, gallic acid, types of sugar, carbohydrates, can also be used.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eine> elrroin- haltigen sauren Farbstoffes., dadurch gekenn zeichnet, dass rnan den nretallernpfindliehen Azofarbstoff aus der bromierten Diazoverbin- dung der 1-Arnirro-2-oxy-naplitalirr-4-sulfosärri-e und ct-Naplrtol mit den chromhaltigen Kom- plexverbindungen, PATENT CLAIM: Process for the preparation of an acidic dye containing elrroin., Characterized in that the azo dye from the brominated diazo compound of 1-Arnirro-2-oxy-naplitalirr-4-sulfosärri-e and ct-Naplrtol with the chromium-containing complex compounds, welche durch Einwirkung von hydroxylgruppenhaltigen organischenVer- Bindungen auf alkalische Chroinhydroxyd- suspensionen erhalten würden, behandelt. Der Farbstoff enthält Chrom in maskier- ter Bindung, indem dasselbe aus der wäs serigen Lösung durch Soda; which would be obtained by the action of organic compounds containing hydroxyl groups on alkaline chroin hydroxide suspensions. The dye contains chromium in a masked bond, by removing the same from the aqueous solution with soda; Natronlauge oder Ammoniak nicht gefällt wird, ist wasserlös- lich, säurebeständig, nicht hupfereizipiindlich und färbt animalische Fasern aus saurem Bad in blauen, wall- und lichtechten Tönen an. Sodium hydroxide or ammonia is not precipitated, is water-soluble, acid-resistant, does not have a tendency to jump and stains animal fibers from an acid bath in blue, wall- and light-fast shades.
CH91275D 1920-03-30 1920-03-30 Process for the preparation of an acidic dye containing chromium. CH91275A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH77248T 1920-03-30
CH91275T 1920-03-30

Publications (1)

Publication Number Publication Date
CH91275A true CH91275A (en) 1921-10-17

Family

ID=25702033

Family Applications (1)

Application Number Title Priority Date Filing Date
CH91275D CH91275A (en) 1920-03-30 1920-03-30 Process for the preparation of an acidic dye containing chromium.

Country Status (1)

Country Link
CH (1) CH91275A (en)

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