CH162635A - Process for the production of a new chromium-containing dye. - Google Patents

Process for the production of a new chromium-containing dye.

Info

Publication number
CH162635A
CH162635A CH162635DA CH162635A CH 162635 A CH162635 A CH 162635A CH 162635D A CH162635D A CH 162635DA CH 162635 A CH162635 A CH 162635A
Authority
CH
Switzerland
Prior art keywords
chromium
containing dye
production
dye
new chromium
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 CH162635A publication Critical patent/CH162635A/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

  

  Zusatzpatent zum Hauptpatent Nr. 159942.         Verfahren    zur Herstellung eines neuen     chromhaltigen    Farbstoffes.    Es wurde gefunden, dass man einen neuen  chromhaltigen Farbstoff erhält, wenn man  den     Azofarbstoff    aus     diazotierter        1-Amino-2-          oxynaphthalin-4,6-disulfonsäure    und     ,Q-Naph-          thol    mit chromabgebenden Mitteln behandelt.  



  Der erhaltene chromhaltige Farbstoff stellt  ein dunkles Pulver dar, das sich in konzen  trierter Schwefelsäure mit blauvioletter, in  Wasser mit violetter Farbe löst und Wolle  aus saurem Bade in echten blauen Tönen  färbt.    <I>Beispiel:</I>  49,6 Teile des durch Kupplung von diano  tierter     1-Amino-2-oxynaphtbalin-4,6-disulfon-          säure    mit     f-Naphthol    erhaltenen Farbstoffes  werden in 400 Teilen Wasser gelöst und  nach Zugabe einer 5      /oigen        Fluorebromlösung,     entsprechend 7,6 Teilen     Cr$Os,    3 Stunden  rückfliessend gekocht.

   Durch Zugabe von    etwas Soda wird eventuell vorhandenes über  schüssiges Chrom ausgefällt, filtriert und die       Farbstofflösung    hierauf eingedampft.



  Additional patent to main patent No. 159942. Process for the production of a new chromium-containing dye. It has been found that a new chromium-containing dye is obtained if the azo dye consisting of diazotized 1-amino-2-oxynaphthalene-4,6-disulfonic acid and Q-naphthol is treated with chromium-releasing agents.



  The chromium-containing dye obtained is a dark powder which dissolves in concentrated sulfuric acid with blue-violet, in water with a violet color and dyes wool from an acid bath in real blue tones. <I> Example: </I> 49.6 parts of the dye obtained by coupling diano-2-oxynaphtbalin-4,6-disulfonic acid with f-naphthol are dissolved in 400 parts of water and, after adding a 5% fluorobromine solution, corresponding to 7.6 parts of Cr $ Os, refluxed for 3 hours.

   Any excess chromium present is precipitated by adding a little soda, filtered and the dye solution is then evaporated.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen chromhaltigen Farbstoffes, dadurch gekenn zeichnet, dass man den Azofarbstoff aus diano tierter 1-Amino-2-oxynaphthalin-4,6-disulfon- säure und P-Naphthol mit chromabgebenden Mitteln behandelt. Der erhaltene chromhaltige Farbstoff stellt ein dunkles Pulver dar, das sich in konzen trierter Schwefelsäure mit blauvioletter, in Wasser mit violetter Farbe löst und Wolle aus saurem Bade in echten blauen Tönen färbt. PATENT CLAIM: Process for the production of a new chromium-containing dye, characterized in that the azo dye from diano-2-oxynaphthalene-4,6-disulfonic acid and P-naphthol is treated with chromium-releasing agents. The chromium-containing dye obtained is a dark powder which dissolves in concentrated sulfuric acid with blue-violet, in water with a violet color and dyes wool from an acid bath in real blue tones.
CH162635D 1932-02-18 1932-02-18 Process for the production of a new chromium-containing dye. CH162635A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH159942T 1932-02-18
CH162635T 1932-02-18

Publications (1)

Publication Number Publication Date
CH162635A true CH162635A (en) 1933-06-30

Family

ID=25717286

Family Applications (1)

Application Number Title Priority Date Filing Date
CH162635D CH162635A (en) 1932-02-18 1932-02-18 Process for the production of a new chromium-containing dye.

Country Status (1)

Country Link
CH (1) CH162635A (en)

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