CH86682A - 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
CH86682A
CH86682A CH86682DA CH86682A CH 86682 A CH86682 A CH 86682A CH 86682D A CH86682D A CH 86682DA CH 86682 A CH86682 A CH 86682A
Authority
CH
Switzerland
Prior art keywords
chromium
acid
dye
preparation
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 CH86682A publication Critical patent/CH86682A/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

Description

  

  Verfahren zur Herstellung eines     chromhaltigen    sauren Farbstoffs.         Ea    wurde gefunden, dass man den metall  empfindlichen     Azofarbstoff    aus     diazotiertem          5-Nitro-4-chlor-2-amido-l-oxybenzol    und     2-          Amidonaphtalin-6-sulfonsäure    durch Behand  lung mit chromabgebenden     Mitteln    in einen       chromhaltigen    sauren     Farbstoff        überführen     kann, welcher das Chrom in maskierter Bin  dung enthält, indem dasselbe aus der wäs  serigen Lösung durch Soda, Natronlauge oder  Ammoniak nicht gefällt wird.

   Der Farbstoff  ist wasserlöslich, säurebeständig, nicht     kupfer-          empfindlich    und färbt animalische Fasern aus  saurem Bad in blaugrünen, walk- und licht  echten Tönen.  



  <I>Beispiel</I>  5 Teile     Azofarbstoff    aus     diazotiertem    5  Nitro-4-chlor-2-amido-l-oxybenzol und     2-          Amidonaphtalin-6-sulfonsäure    werden mit 200  Teilen Wasser, 7,5 Teilen     Chromfluorid    (mit  einem     36..8"/o        CrQ        0s    entsprechenden Chrom  gehalt) und 10-20 Teilen Glaspulver oder  der entsprechenden Menge eines andern säure  bindenden Mittels, wie     Natriumacetat,        Am-          moniumlaktat    und dergleichen, während 24  Stunden unter     Rückfluss    gekocht.

   Es scheidet  sieh die Chromverbindung der Farbsäure als         schwerlöslicher    Niederschlag aus. Derselbe  wird     abfiltriert,    in kalter verdünnter Natron  lauge (enthaltend 1 Teil     NaOH)    gelöst und  mit Essigsäure schwach angesäuert. Aus der  intensiv grünen Lösung wird der     Farbstoff     durch Aussahen abgeschieden,     abfiltriert,    ge  presst und getrocknet.



  Process for the preparation of an acidic dye containing chromium. It has been found that the metal-sensitive azo dye made from diazotized 5-nitro-4-chloro-2-amido-1-oxybenzene and 2-amidonaphthalene-6-sulfonic acid can be converted into a chromium-containing acidic dye by treatment with chromium donating agents, which the chromium in masked binding contains, 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 dyes animal fibers from an acid bath in blue-green, whipped and light shades.



  <I> Example </I> 5 parts of azo dye from diazotized 5-nitro-4-chloro-2-amido-1-oxybenzene and 2-amidonaphthalene-6-sulfonic acid are mixed with 200 parts of water, 7.5 parts of chromium fluoride (with a 36 ..8 "/ o CrQ 0s corresponding chromium content) and 10-20 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 out as a sparingly soluble precipitate. The same is filtered off, dissolved in cold dilute sodium hydroxide solution (containing 1 part NaOH) and made weakly acidic with acetic acid. The dye is deposited from the intensely green solution by looking, filtered off, pressed and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines chrom- haltigen sauren Farbstoffes, dadurch gekenn zeichnet, dass man den metallempfindlichen Azofarbstoff aus diazotiertem 5-Nitro-4-chlor- 2-ainido-l-oxybenzol und 2-Amidonaphtalin- 6-sulfonsäui-e mit chromabgebenden Mitteln behandelt. PATENT CLAIM: A process for the production of a chromium-containing acidic dye, characterized in that the metal-sensitive azo dye is made from diazotized 5-nitro-4-chloro-2-ainido-1-oxybenzene and 2-amidonaphthalene-6-sulfonic acid with chromium-releasing Means treated. Der Farbstoff enthält das Chrom in mas kierter Bindung, indem dasselbe aus der wäs serigen Lösung durch Soda, Natronlauge oder Ammoniak nicht gefällt wird, ist wasser löslich, säurebeständig, nicht kupferempfind lich und färbt animalische Fasern aus saurem Bad in blaugrünen, walk- und lichtechten Tönen. The dye contains the chromium in a masked bond, as it is not precipitated from the aqueous solution by soda, caustic soda or ammonia, is water-soluble, acid-resistant, not sensitive to copper and colors animal fibers from an acid bath in blue-green, mill-proof and lightfast Tones.
CH86682D 1917-10-12 1917-10-12 Process for the preparation of an acidic dye containing chromium. CH86682A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH86682T 1917-10-12
CH80096T 1917-10-12

Publications (1)

Publication Number Publication Date
CH86682A true CH86682A (en) 1920-09-16

Family

ID=25702623

Family Applications (1)

Application Number Title Priority Date Filing Date
CH86682D CH86682A (en) 1917-10-12 1917-10-12 Process for the preparation of an acidic dye containing chromium.

Country Status (1)

Country Link
CH (1) CH86682A (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

Similar Documents

Publication Publication Date Title
CH86682A (en) Process for the preparation of an acidic dye containing chromium.
CH86690A (en) Process for the preparation of an acidic dye containing chromium.
CH86686A (en) Process for the preparation of an acidic dye containing chromium.
CH86684A (en) Process for the preparation of an acidic dye containing chromium.
CH86694A (en) Process for the preparation of an acidic dye containing chromium.
CH86685A (en) Process for the preparation of an acidic dye containing chromium.
CH86692A (en) Process for the preparation of an acidic dye containing chromium.
CH86689A (en) Process for the preparation of an acidic dye containing chromium.
CH86691A (en) Process for the preparation of an acidic dye containing chromium.
CH86688A (en) Process for the preparation of an acidic dye containing chromium.
CH86679A (en) Process for the preparation of a chromium-containing acidic dye.
CH86681A (en) Process for the preparation of a chromium-containing acidic dye.
CH86693A (en) Process for the preparation of an acidic dye containing chromium.
CH86683A (en) Process for the preparation of an acidic dye containing chromium.
CH86680A (en) Process for the preparation of a chromium-containing acidic dye.
CH86687A (en) Process for preparing a chromium-containing acidic dye.
CH86974A (en) Process for the preparation of an acidic dye containing chromium.
CH87139A (en) Process for the preparation of an acidic dye containing chromium.
CH213429A (en) Process for the production of a copper-containing trisazo dye.
CH205818A (en) Process for the production of a new, metal-containing stain dye.
CH86979A (en) Process for the preparation of an acidic dye containing chromium.
CH203039A (en) Process for the preparation of an azo dye containing complex bonded copper.
CH86978A (en) Process for the preparation of an acidic dye containing chromium.
CH205813A (en) Process for the production of a new, metal-containing stain dye.
CH200673A (en) Process for the preparation of an azo dye containing complexed chromium.