CH86975A - 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
CH86975A
CH86975A CH86975DA CH86975A CH 86975 A CH86975 A CH 86975A CH 86975D A CH86975D A CH 86975DA CH 86975 A CH86975 A CH 86975A
Authority
CH
Switzerland
Prior art keywords
acid
chromium
dye
sensitive
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 CH86975A publication Critical patent/CH86975A/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
    • C09B45/01—Complex metal compounds of azo dyes characterised by the method of metallisation
    • 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    Farbstoffes.    Es wurde gefunden, dass man den metall  empfindlichen     Azofarbstoff    aus     diazotierter     i -     Amino    - 2 -     oxynaphtalin-4-sulfosäure    und       1-3'-Nitrophenyl-3-methyl-5-pyrazolon        durch     Behandlung in der Wärme mit.

   einfach  chromsauren Salzen, am besten bei Gegen  wart eines Reduktionsmittels und eines     al-          kalibindenden    Mittels, zum Beispiel     Ainmo-          niumsulfat    und     Natriumthiosulfat,    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, säure  beständig, nicht kupferempfindlich und  färbt animalische Fasern aus saurem Bad  in walk- und lichtechten blauroten Tönen.  <I>Beispiel:</I>  10 Teile des     Azofarbstoffes    aus     diazotier-          ter        1-Amino-2-oxynaphtalin-4-sulfosäure    und  i -     3'-Nitrophenyl-3-        methyl-5-pyrazolon,    10  Teile     Kaliumchromat    und     'i    Teile kristalli  siertem     Magnesiumsulfat    werden in 1000  'feilen Wasser zwei Stunden gekocht., wobei    die ursprünglich braunorange Farbe der Lö  sung blaurot. geworden ist..

   Die-     Chromver-          bindung    wird     durch        Aussalzen    abgeschie  den,     abfiltriert    und getrocknet.



  Process for the preparation of an acidic dye containing chromium. It has been found that the metal-sensitive azo dye from diazotized i - amino - 2 - oxynaphthalene-4-sulfonic acid and 1-3'-nitrophenyl-3-methyl-5-pyrazolone by treatment in the heat with.

   chromic acid salts, ideally in the presence of a reducing agent and an alkali binding agent, for example ammonium sulphate and sodium thiosulphate, can be converted into an acidic dye containing chromium, which contains the chromium in a masked bond by removing it from the aqueous solution is not precipitated by soda, caustic soda or ammonia.



  The dye is water-soluble, acid-resistant, not sensitive to copper and dyes animal fibers from an acidic bath in blush and lightfast blue-red shades. <I> Example: </I> 10 parts of the azo dye from diazotized 1-amino-2-oxynaphthalene-4-sulfonic acid and i - 3'-nitrophenyl-3-methyl-5-pyrazolone, 10 parts of potassium chromate and 'i Parts of crystallized magnesium sulphate are boiled for two hours in 1000 'files of water, the original brown-orange color of the solution being blue-red. has become..

   The chromium compound is separated out by salting out, filtered off and dried.

Claims (1)

PATENTANSPRUCII Verfahren zur FIerstellung eines chrom- haltigen sauren Farbstoffes, darin beste- hend, PATENT CLAIM Process for the production of a chromium-containing acidic dye, consisting of dass man den metallempfindlichen Azofarbstoff aus diazotierter l.-Amirio-2-o>xy- naplrtalin-4-sulfosäure und 1-3'-Nit-ropheriyl- 3 - methyl - 5 - pyi azolon mit einfach ehrom- sauren Salzen in der Wärme behandelt.. that the metal-sensitive azo dye from diazotized l.-Amirio-2-o> xy-naplrtalin-4-sulfonic acid and 1-3'-nit-ropheriyl-3 - methyl - 5 - pyi azolone with simple ehromic acid salts in the heat treated .. Der Farbstoff enthält (-las Chrom in mas kierter Bindung, indem dasselbe aus<B>der</B> wässerigen Lösung durch Soda, Natronlauge oder Ammoniak nicht. gefällt \wird, ist was serlöslich, säurebeständig, nicht, kupfer empfindlich und färbt animalische Fasern aus saurem Bad in walk- und lichtechten blauroten Tönen. UNTERANSPRüCIIE 1. The dye contains (-las chromium in a masked bond, as it is not precipitated from <B> the </B> aqueous solution by soda, caustic soda or ammonia. Anything is soluble, acid-resistant, not, copper-sensitive and has an animal color Fibers from an acid bath in walk-fast and lightfast blue-red tones. SUBCLAIM 1. Verfahren nach Patentanspruch, dadurch gekennzeichnet, class man Reduktionsmit- tel und alkalibindende Mittel zusetzt. 2. Verfahren nach Patentanspruch und Un teranspruch i, dadurch gekennzeichnet, clati man Ammoniumsulfal. und Natrium- tliiosulfat zusetzt.. Process according to patent claim, characterized in that reducing agents and alkali-binding agents are added. 2. The method according to patent claim and Un teran claim i, characterized in that clati one ammonium sulfal. and sodium thiiosulfate added.
CH86975D 1916-12-23 1916-12-23 Process for the preparation of an acidic dye containing chromium. CH86975A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH86975T 1916-12-23
CH77248T 1920-03-30

Publications (1)

Publication Number Publication Date
CH86975A true CH86975A (en) 1920-10-16

Family

ID=25702023

Family Applications (1)

Application Number Title Priority Date Filing Date
CH86975D CH86975A (en) 1916-12-23 1916-12-23 Process for the preparation of an acidic dye containing chromium.

Country Status (1)

Country Link
CH (1) CH86975A (en)

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