CH86978A - 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
CH86978A
CH86978A CH86978DA CH86978A CH 86978 A CH86978 A CH 86978A CH 86978D A CH86978D A CH 86978DA CH 86978 A CH86978 A CH 86978A
Authority
CH
Switzerland
Prior art keywords
dye
chromium
preparation
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 CH86978A publication Critical patent/CH86978A/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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring Foods And Improving Nutritive Qualities (AREA)
  • Coloring (AREA)

Description

  

      \'erfahren    zur     Herstellung    eines     eliroinlialtigen    sauren     Farbstoff-.       Es wurde gefunden,     dah    man den metall  empfindlichen     Azofarbstoff    aus     diazotiertein          4-Nitro-2-ainino-l-oxybenzol    und     1-oxynapli-          talin-5-sulfosiiiire    durch Behandlung in     der     Wärme mit einfach     elironisauren    Salzen am  besten bei Gegenwart eines     Reduktionsmittels     und eines     alkalibindenden    -Mittels,

   zum Bei  spiel     Aininoniumsulfat    und     NatriLunthiosulfat,     in     einen        chromhaltigen,    sauren Farbstoff über  führen kann, welcher das     Chrom    in maskierter  Bindung enthält, indem dasselbe 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 saurein Bad in walk  und lichtechten     violettbraunen    Tönen.  



       Beispiel:     5 Teile     Azofarbstoff    aus     diazotiertein          4-Niti,o-2-amino-l-oxybenzol    und     1-oxynaph-          talin-5-sulfosäure    und 1,5 Teile     Kaliurnchro-          mat    werden in 125 Teilen Wasser 1 Stunde  gekocht, wobei die ursprünglich violette Farbe  der Lösung     violettbraun    geworden ist. Die  Chromverbindung wird durch Aussahen ab  geschieden,     abfiltriert    und getrocknet.



      \ 'experienced for the production of an eliroinlialtigen acidic dye. It has been found that the metal-sensitive azo dye from diazotized 4-nitro-2-ainino-1-oxybenzene and 1-oxynapitaline-5-sulfosiiire by treatment in heat with simple elironic acid salts is best in the presence of a reducing agent and a alkali-binding agents,

   For example, ammonium sulfate and sodium thiosulfate, can lead to a chromium-containing, acidic dye, which contains the chromium in masked bond, in that 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 acidic bath in walk and lightfast violet-brown tones.



       Example: 5 parts of azo dye made from diazotized 4-niti, o-2-amino-1-oxybenzene and 1-oxynaphthalene-5-sulfonic acid and 1.5 parts of potassium chromate are boiled in 125 parts of water for 1 hour, the originally The purple color of the solution has turned purple-brown. The chromium compound is separated off by sight, filtered off and dried.

Claims (1)

PATE N TANSPRUCIi Verfahren zur llei:stellung eines Chrom- lialtigen, sauren Farbstoffes, darin bestehend, dah inau den metallempfindlichen Azofarb- stoff aus diazutierter 4-Nitro-'3-amino-l-oxy- benzol und 1-ux-ymiphtalin-5-sulfosäure mit einfach chromsauren Salzen in der Wärme behandelt. PATE N TANSPRUCIi Process for the preparation of a chromium-containing, acidic dye, which contains the metal-sensitive azo dye from diazutized 4-nitro-3-amino-1-oxybenzene and 1-ux-ymiphtalin-5 -sulfonic acid treated with simple chromic acid salts in the heat. 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 wasserlös lich, säurebeständig, nicht kupferempfindlich und färbt animalische Fasern aus saurem Bad in walk- und lichtechten violettbraunen Tönen. UNTERANSPRÜCHE: 1. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man Reduktionsmittel und alkalibindende Mittel zusetzt. 2. The dye contains the chromium in a masked bond, as it is not precipitated from the aqueous solution with soda, caustic soda or ammonia, is water-soluble, acid-resistant, not sensitive to copper and colors animal fibers from an acid bath in whipped and lightfast violet-brown shades. SUB-CLAIMS: 1. Method according to claim, characterized in that reducing agents and alkali-binding agents are added. 2. Verfahren nach Patentanspruch und 1_:nter- anspruch 1, dadurch gekennzeichnet, dass man Aninioniumsulfat und Natriumthio- sulfat zusetzt. Process according to patent claim and claim 1, characterized in that anionic sulfate and sodium thiosulfate are added.
CH86978D 1916-12-23 1916-12-23 Process for the preparation of an acidic dye containing chromium. CH86978A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH86978T 1916-12-23
CH77248T 1920-03-30

Publications (1)

Publication Number Publication Date
CH86978A true CH86978A (en) 1920-11-01

Family

ID=25702026

Family Applications (1)

Application Number Title Priority Date Filing Date
CH86978D CH86978A (en) 1916-12-23 1916-12-23 Process for the preparation of an acidic dye containing chromium.

Country Status (1)

Country Link
CH (1) CH86978A (en)

Similar Documents

Publication Publication Date Title
CH86978A (en) Process for the preparation of an acidic dye containing chromium.
CH86979A (en) Process for the preparation of an acidic dye containing chromium.
CH87139A (en) Process for the preparation of an acidic dye containing chromium.
CH86974A (en) Process for the preparation of an acidic dye containing chromium.
CH86977A (en) Process for the preparation of an acidic dye containing chromium.
CH86690A (en) Process for the preparation of an acidic dye containing chromium.
CH86693A (en) Process for the preparation of an acidic dye containing chromium.
CH86976A (en) Process for the preparation of an acidic dye containing chromium.
CH86975A (en) Process for the preparation of an acidic dye containing chromium.
CH86694A (en) Process for the preparation of an acidic dye containing chromium.
CH86686A (en) Process for the preparation of an acidic dye containing chromium.
CH86691A (en) Process for the preparation of an acidic dye containing chromium.
CH86684A (en) Process for the preparation of an acidic dye containing chromium.
CH132918A (en) Process for the preparation of a stain dye.
CH86682A (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.
CH86680A (en) Process for the preparation of a chromium-containing acidic dye.
CH86679A (en) Process for the preparation of a chromium-containing acidic dye.
CH86692A (en) Process for the preparation of an acidic dye containing chromium.
DE474746C (en) Process for the preparation of o-oxyazo dyes
CH86685A (en) Process for the preparation of an acidic dye containing chromium.
CH86689A (en) Process for the preparation of an acidic dye containing chromium.
CH86681A (en) Process for the preparation of a chromium-containing acidic dye.
CH190722A (en) Process for the preparation of an azo dye.
CH199462A (en) Process for the preparation of an azo dye containing complexed chromium.