CH170321A - Process for the preparation of a chromium-containing azo dye. - Google Patents

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

Info

Publication number
CH170321A
CH170321A CH170321DA CH170321A CH 170321 A CH170321 A CH 170321A CH 170321D A CH170321D A CH 170321DA CH 170321 A CH170321 A CH 170321A
Authority
CH
Switzerland
Prior art keywords
chromium
azo dye
containing azo
amino
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 CH170321A publication Critical patent/CH170321A/en

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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

  

      Zusatzpatent    zum     Hauptpatent        Nr.    166497.    Verfahren zur Herstellung eines chromhaltigen     Azofarbstoffes.       Es wurde gefunden, dass man einen     chrom-          haltigen        Azofarbstoff    durch Einwirkung des  chromhaltigen     Azofarbstoffes,

      der durch     Chro-          mieren    einer Mischung der     Azofarbstoffe    aus  dianotierter     1-Amino-2-oxyriaphthaliir-4-sulfon-          säure    und     2-Oxyriaphthalin    sowie aus diano  tierter     1-Arnino-2-oxynaphthalin-4-sulfonsäure     und     1-Phenyl-3-methyl-5-pyrazolori    entsteht,  auf den     Monoazofarbstoff    aus dianotiertem       1-Oxy-2-amino-4-chlorberrzol    und     1.8-Dioxy-          naphthaliri-3.6-disulfonsäure    erhalten kann,  wenn diese Einwirkung in alkalischem Medium  erfolgt.  



  Der neue chromhaltige     Azofarbstoff    stellt  ein     violettschwarzes    Pulver dar, das Wolle  aus saurem Bade in     violettblauen    Tönen von  guten     Echtheiten    färbt.         Beispiel:

       41,6 Teile des     Azofarbstoffes    aus diano  tierter     1-Amino-2-oxynaphthalin-4-sulfonsäure     und     2-Oxyriaphthalin    sowie 44,7 Teile des       Azofarbatoffes    aus dianotierter 1-Amino-2-         oxynaphthalin-4-sulfoirsäure    und     1-Phenyl-3-          methyl-5-pyrazolon    werden in 1200 Teilen  Wasser mit     Chromformiat,    entsprechend 18,24  Teilen     Cr20a,    15 Stunden gekocht.

   Die zum  grossen Teil bereits ausgeschiedene Chrom  verbindung der     Farbstoffe    scheidet man durch  Beigabe von Kochsalz völlig aus,     nutscht    ab  und trägt das     Nutschgut    sowie 52 Teile des       Monoazofarbstoffes    aus dianotiertem     1-Oxy-2-          amino-4-chlorbenzol    und     1.8-Dioxynaphtba-          lin-3.6-disulfonsäure    in<B>900</B> Teile einer 7     o/oigen     Natronlauge ein.

   Nach     4-5stütidigem    Kochen  unter     Rückflusskühlung    wird mit stark ver  dünnter Mineralsäure neutralisiert, von wenig  Verunreinigungen     abfiltriert    und die violette  Lösung im Vakuum bei     Wasserbadtempera-          tur    zur Trockne verdampft.  



  Zu demselben chromhaltigen     Azofarbstoff     gelangt man, wenn statt Natronlauge andere  Alkalien, wie z. B. Kalilauge, Soda, Pottasche,  Borax,     Magnesiumoxyd,        Calciumhydroxyd,     Ammoniak oder     Trialkaliphosphat    verwendet  werden.



      Additional patent to main patent No. 166497. Process for the production of a chromium-containing azo dye. It has been found that a chromium-containing azo dye can be produced by the action of the chromium-containing azo dye,

      which by chroming a mixture of azo dyes from dianotated 1-amino-2-oxyriaphthalene-4-sulfonic acid and 2-oxyriaphthalene and from diano-tated 1-amino-2-oxynaphthalene-4-sulfonic acid and 1-phenyl-3- methyl-5-pyrazolori arises, on the monoazo dye can be obtained from dianotized 1-oxy-2-amino-4-chlorobertzene and 1,8-dioxynaphthaliri-3,6-disulfonic acid if this action takes place in an alkaline medium.



  The new chromium-containing azo dye is a violet-black powder that dyes wool from an acid bath in violet-blue shades with good fastness properties. Example:

       41.6 parts of the azo dye from dianotated 1-amino-2-oxynaphthalene-4-sulfonic acid and 2-oxyriaphthalene and 44.7 parts of the azo carbate from dianotated 1-amino-2-oxynaphthalene-4-sulfoiric acid and 1-phenyl-3 - methyl-5-pyrazolone are boiled in 1200 parts of water with chromium formate, corresponding to 18.24 parts of Cr20a, for 15 hours.

   The chromium compound of the dyes, which has already largely been separated out, is completely eliminated by adding table salt, suction filtered and the filter material as well as 52 parts of the monoazo dye made from dianotized 1-oxy-2-amino-4-chlorobenzene and 1,8-dioxynaphtba-lin- 3.6-disulfonic acid in <B> 900 </B> parts of a 7% sodium hydroxide solution.

   After boiling under reflux for 4-5 hours, the mixture is neutralized with highly dilute mineral acid, little impurities are filtered off and the violet solution is evaporated to dryness in vacuo at water bath temperature.



  The same chromium-containing azo dye is obtained if, instead of sodium hydroxide, other alkalis, such as. B. potassium hydroxide, soda, potash, borax, magnesium oxide, calcium hydroxide, ammonia or trialkali phosphate can be used.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines chrom- haltigen Azofarbstoffes durch Einwirkung des chromhaltigen Azofarbstoffes, der durch Chromieren einer Mischung der Azofarbstoffe aus dianotierter 1-Amino-2..oxynaphtlialin-4- sulfonsäure und 2-Oxynaphthalin, sowie aus dianotierter 1-Amino-2-oxynaphthaliii-4-sulfon- säure und 1-Phenyl-3-methyl-b-pyrazolon ent steht, PATENT CLAIM: Process for the production of a chromium-containing azo dye by the action of the chromium-containing azo dye, which is produced by chromating a mixture of the azo dyes from dianotated 1-amino-2..oxynaphthaline-4-sulfonic acid and 2-oxynaphthalene, and from dianotated 1-amino-2 -oxynaphthaliii-4-sulfonic acid and 1-phenyl-3-methyl-b-pyrazolone is formed, auf den Monoazofarbstoff aus diano tiertem 1-Oxy-2-ämino-4-chlorbenzol und 1.8- Dioxynaphthalin-3.6-disulfonsäure, dadurch gekennzeichnet, dass diese Einwirkung in alkalischem Medium erfolgt. Der neue chromhaltige Azofarbstoff stellt ein violettschwarzes Pulver dar, das Wolle aus saurem Bade in violettblauen Tönen von guten Echtheiten färbt. on the monoazo dye from diano-oriented 1-oxy-2-aemino-4-chlorobenzene and 1.8-dioxynaphthalene-3.6-disulfonic acid, characterized in that this action takes place in an alkaline medium. The new chromium-containing azo dye is a violet-black powder that dyes wool from an acid bath in violet-blue shades with good fastness properties.
CH170321D 1932-11-07 1932-11-07 Process for the preparation of a chromium-containing azo dye. CH170321A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH170321T 1932-11-07
CH166497T 1934-01-15

Publications (1)

Publication Number Publication Date
CH170321A true CH170321A (en) 1934-06-30

Family

ID=25718303

Family Applications (1)

Application Number Title Priority Date Filing Date
CH170321D CH170321A (en) 1932-11-07 1932-11-07 Process for the preparation of a chromium-containing azo dye.

Country Status (1)

Country Link
CH (1) CH170321A (en)

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