CH86680A - Process for the preparation of a chromium-containing acidic dye. - Google Patents

Process for the preparation of a chromium-containing acidic dye.

Info

Publication number
CH86680A
CH86680A CH86680DA CH86680A CH 86680 A CH86680 A CH 86680A CH 86680D A CH86680D A CH 86680DA CH 86680 A CH86680 A CH 86680A
Authority
CH
Switzerland
Prior art keywords
chromium
preparation
dye
acid
acidic dye
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 CH86680A publication Critical patent/CH86680A/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)
  • Coloring (AREA)

Description

  

      Verfahren    zur Herstellung eines     ehromlialtigen    sauren Farbstoffs.    Es wurde gefunden, dass man den     inetall-          empfindlichen        Azofarbstoff    aus     diazotiertem          5-Nitro-2-amido-l-oxybenzol    und     2-Anrido-          naphtalirr    - 7 -     srrlfonsärire    durch     Bebandlung     mit chromabgebenden Mitteln in einen     cbrom-          haltigen    sauren     Farbstoff    überführen kann.

    welcher das Chrom in     maskierter    Bindung  enthält, indem dasselbe aus der     wässrigen          Lösung    durch Soda, Natronlauge oder     Ainino-          niak    nicht gefällt wird. Der     Farbstoff    ist  wasserlöslich, säurebeständig, nicht kupfer  empfindlich und färbt animalische Fasern aus  saurem Bade in blaustichig     grünen,    walk  und lichtechten Tönen.  



       Beispiel:     5 Teile     Azofarbstoff    aus     diazotiertem    5     -          Nitro-2-amido-l-oxy-beirzol    und     2-Amido-          naphtalin    - 7 -     sulfonsäure    werden     finit    200 Tei  len Wasser, 7,5 Teilen     Chromfluorid    (mit  einem     36,8/o        Cr2    03 entsprechenden     Chrorn-          gelialt)    und L0-20 Teilen Glaspulver oder  der entsprechenden Menge eines andern säure  bindenden Mittels, wie     -'LNatriumacetat,

          Ammo-          niumlaktat    und dergleichen, während 24     Stlrrr-          den    unter     Rückfluss    gekocht. Es scheidet sich  die Chromverbindung der Farbsäure als schwer-  
EMI0001.0042     
  




      Process for the preparation of an ethylenic acidic dye. It has been found that the metal-sensitive azo dye from diazotized 5-nitro-2-amido-1-oxybenzene and 2-anridonaphthalene can be converted into a chromium-containing acid dye by treatment with chromium-releasing agents.

    which contains the chromium in a masked bond, in that it 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 dyes animal fibers from acid baths in bluish green, milled and lightfast shades.



       Example: 5 parts of azo dye from diazotized 5-nitro-2-amido-1-oxy-beirzole and 2-amido naphthalene-7-sulfonic acid are finely 200 parts of water, 7.5 parts of chromium fluoride (with a 36.8 / o Cr2 03 corresponding chromium gelialt) and L0-20 parts of glass powder or the corresponding amount of another acid-binding agent, such as sodium acetate,

          Ammonium lactate and the like, refluxed for 24 hours. The chromium compound of the coloric acid separates as a difficult
EMI0001.0042

Claims (1)

PATENTANSPRUCH: Verfahren zur Tierstellung eines clrrom- baltigen sauren Farbstoffes, dadurch gekenn zeichnet, dah man den metallempfindlichen Azofarbstoff aus diazotiertem 5-Nitro-2- EMI0001.0050 behandelt. PATENT CLAIM: A method for the preparation of an acidic dye containing clrromium, characterized in that the metal-sensitive azo dye is made from diazotized 5-nitro-2- EMI0001.0050 treated. Der Farbstoff enthält das Chrom in mas kierter- Bindung, indem dasselbe aus des wäss- rigen Lösung durch Soda, Natronlauge oder Ammoniak nicht gefällt wird, ist wasserlös- licb, säurebeständig, nicht kupferempfindlich und färbt aninialiselie Fasern aus saurem Bade in blaustichig grünen, walk- und licht echten Tönen. The dye contains the chromium in a masked bond, since it is not precipitated from the aqueous solution by soda, caustic soda or ammonia, it is water-soluble, acid-resistant, not sensitive to copper and colors aninialiselie fibers from acid baths in bluish green, millet - and light real tones.
CH86680D 1917-10-12 1917-10-12 Process for the preparation of a chromium-containing acidic dye. CH86680A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH86680T 1917-10-12
CH80096T 1917-10-12

Publications (1)

Publication Number Publication Date
CH86680A true CH86680A (en) 1920-09-16

Family

ID=25702621

Family Applications (1)

Application Number Title Priority Date Filing Date
CH86680D CH86680A (en) 1917-10-12 1917-10-12 Process for the preparation of a chromium-containing acidic dye.

Country Status (1)

Country Link
CH (1) CH86680A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE744303C (en) * 1940-06-04 1944-01-13 Ig Farbenindustrie Ag Process for the preparation of chromium-containing o-oxyazo dyes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE744303C (en) * 1940-06-04 1944-01-13 Ig Farbenindustrie Ag Process for the preparation of chromium-containing o-oxyazo dyes

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