CH91271A - 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
CH91271A
CH91271A CH91271DA CH91271A CH 91271 A CH91271 A CH 91271A CH 91271D A CH91271D A CH 91271DA CH 91271 A CH91271 A CH 91271A
Authority
CH
Switzerland
Prior art keywords
chromium
dye
preparation
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 CH91271A publication Critical patent/CH91271A/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B45/00Complex metal compounds of azo dyes
    • C09B45/02Preparation from dyes containing in o-position a hydroxy group and in o'-position hydroxy, alkoxy, carboxyl, amino or keto groups
    • C09B45/14Monoazo compounds
    • C09B45/16Monoazo compounds containing chromium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Detergent Compositions (AREA)

Description

  

  Verfahren zur Darstellung eines chromhaltigen sauren     Farbstoffes.       Es wurde gefunden, dass man den metall  empfindlichen     Azofarbstoff    aus dianotierter       4-Chlor-2-amino-l-oxybenzol-6-sulfosäure    und       1-Phenyl-3-methyl-5-pyrazolorr    durch Behand  lung mit den     cbromhaltigen        Komplexverbin-          dungen,    welche durch Einwirkung von     hydro-          gylgruppenhaltigen    organischen     Verbindungen     auf alkalische     Chromhydroxydsuspensionen     erhalten 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 kupferempfindlich und färbt  animalische Fasern aus saurem Bad in roten,  walk- und lichtechten Tönen an.  



  <I>Beispiel:</I>  In 600 Teilen einer     Chromhy        droxydhydrat-          paste,    enthaltend 76,5 Teile     Cra0s,    löst man  unterhalb 70   160 Teile     Ätznatron.    Hierauf  gibt man 90 Teile Glyzerin hinzu und erhitzt  zum Kochen, bis vollständige Lösung einge  treten ist.

       Sodann    verdünnt man auf 2400         Volumteile,    versetzt mit 430 Teilen des F     a.rb-          stoffes    aus dianotierter     4-Chlor-2-amirro-l-oxy-          benzol-6-sulfosiiure    und     1-Pheny        1-3-methyl-5-          pyrazolon    und kocht das Ganze einige Stun  den am     Rückflusskühler    weiter, bis der Farb  stoff vollständig in seine Chromverbindung  übergegangen ist.

   Ist dies erreicht, so ver  dünnt man mit 7200 Teilen kaltem Wasser  und salzt den entstandenen Farbstoff aus,  nachdem der     Ätzalkaliüberschuss    mit Mineral  säure neutralisiert worden ist. Statt Glyzerin  können auch andere     hydroxylgruppenhaltige,     organische Verbindungen, wie     Glykol,        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 can be obtained from dianotized 4-chloro-2-amino-1-oxybenzene-6-sulfonic acid and 1-phenyl-3-methyl-5-pyrazolor by treatment with the cbromine-containing complex compounds which obtained by the action of organic compounds containing hydrogyl groups on alkaline chromium hydroxide suspensions, can be converted into a chromium-containing acidic dye,

   which contains the chromium in a masked bond, while the same is not precipitated from the aqueous solution by soda, caustic soda or ammonia. The dye is water-soluble, acid-resistant, not sensitive to copper and stains animal fibers from an acid bath in red, mill-fast and light-fast shades.



  <I> Example: </I> In 600 parts of a chromium hydroxide hydrate paste containing 76.5 parts of Cra0s, 160 parts of caustic soda are dissolved below 70. 90 parts of glycerine are then added and the mixture is heated to a boil until complete dissolution has occurred.

       It is then diluted to 2400 parts by volume, mixed with 430 parts of the dye from dianotated 4-chloro-2-amirro-1-oxybenzene-6-sulfonic acid and 1-pheny 1-3-methyl-5-pyrazolone and cook the whole thing on the reflux condenser for a few hours until the dye has completely converted into its chromium compound.

   Once this has been achieved, dilute it with 7200 parts of cold water and salt out the resulting dye after the excess caustic alkali has been neutralized with mineral acid. Instead of glycerine, other organic compounds containing hydroxyl groups, such as glycol, tannin, gallic acid, sugars, carbohydrates, can also be used.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines chrom- haltigen sauren Farbstoffes, dadurch gekenn zeichnet, dass man den metallempfindlichen Azofarbstcff aus dianotierter 4-Chlor-2-amino- 1-oxybenzol-6-srrlfosiiur,e und 1-Pherry l-3-me- thyl-5-pyrazolorr mit den chromhaltigen Kom plexverbindungen, PATENT CLAIM: Process for the preparation of a chromium-containing acidic dye, characterized in that the metal-sensitive azo dye is made from dianotated 4-chloro-2-amino-1-oxybenzene-6-srrlfosiiur, e and 1-Pherryl-3-me- thyl-5-pyrazolorr with the chromium-containing complex compounds, welche durch Einwirkung von hydroxylgruppenhaltigen organischen Ver- bindungen auf alkalische Chromhydroxyd- suspensionen erhalten werden, behandelt. Der Farbstoff enthält Chrom in maskierter Bin dung, indem dasselbe aus der wässerigen Lösung durch Soda, Natronlauge oder Am moniak nicht gefällt wird, ist wasserlöslich, säurebeständig, nicht kupferempfindlich und färbt animalische Fasern aus saurem Bad in roten, walk- und lichtechten Tönen an. which are obtained by the action of organic compounds containing hydroxyl groups on alkaline chromium hydroxide suspensions. The dye contains chromium in a masked bond, as it is not precipitated from the aqueous solution with soda, caustic soda or ammonia, it is water-soluble, acid-resistant, not sensitive to copper and stains animal fibers from an acid bath in red, milled and lightfast shades.
CH91271D 1920-03-30 1920-03-30 Process for the preparation of an acidic dye containing chromium. CH91271A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH91271T 1920-03-30
CH77248T 1920-03-30

Publications (1)

Publication Number Publication Date
CH91271A true CH91271A (en) 1921-10-17

Family

ID=25702029

Family Applications (1)

Application Number Title Priority Date Filing Date
CH91271D CH91271A (en) 1920-03-30 1920-03-30 Process for the preparation of an acidic dye containing chromium.

Country Status (1)

Country Link
CH (1) CH91271A (en)

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