CH170332A - 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
CH170332A
CH170332A CH170332DA CH170332A CH 170332 A CH170332 A CH 170332A CH 170332D A CH170332D A CH 170332DA CH 170332 A CH170332 A CH 170332A
Authority
CH
Switzerland
Prior art keywords
azo dye
oxynaphthalene
chromium
containing azo
amino
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 CH170332A publication Critical patent/CH170332A/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

  

  <B>Zusatzpatent</B> 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    des     Azofarbstoffes    aus dianotierter       1-Amino-2-oxynaphthalin-4-sulfonsäure    und       2-Oxynaphthalin    entsteht,

   auf den     Azofarb-          stoff    aus dianotierter     1-Amino-2-oxynaphthalin-          4-sulfonsäure    und     1-Oxynaphthalin    erhalten  kann, wenn diese Einwirkung in alkalischem  Medium erfolgt.  



  Der erhaltene chromhaltige     Azofarbstoff     ist in Wasser leicht löslich und färbt Wolle  aus     organischsaurem-schwefelsaureni    Bade in  marineblauen Tönen von vorzüglichen     Echt-          heiten.     



  <I>Beispiel:</I>  110 Teile der Chromverbindung des     Azo-          farbstoffes    aus dianotierter     1-Amino-2-oxy-          naphthalin-4-sulfonsäure    und     2-Oxynaphthalin     werden in einem Gemisch 1500 Teilen Wasser,  200 Teilen     30o/oiger    Natronlauge und 10 Tei  len Zucker gelöst, hierauf 41,6 Teile des       Azofarbstoffes    aus dianotierter 1-Amino-2-oxy-         naphthalin-4-sulfonsäure    und     1-Oxynaphtha-          lin    zugefügt, und die Mischung wird 4 Stun  den rückfliessend gekocht.

   Nach dem Abküh  len auf<B>60'</B> wird mit     10o/oiger    Salzsäure und  etwas Ameisensäure schwach     lackmussauer     gestellt und die blaue Lösung im Vakuum  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.



  <B> Additional patent </B> 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 is produced by the action of the chromium-containing azo dye, which is formed by chroming the azo dye from dianotated 1-amino-2-oxynaphthalene-4-sulfonic acid and 2-oxynaphthalene,

   on the azo dye from dianotized 1-amino-2-oxynaphthalene-4-sulfonic acid and 1-oxynaphthalene, if this action takes place in an alkaline medium.



  The chromium-containing azo dye obtained is easily soluble in water and dyes wool from an organic-sulfuric acid bath in navy blue shades of excellent fastness.



  <I> Example: </I> 110 parts of the chromium compound of the azo dye from dianotized 1-amino-2-oxynaphthalene-4-sulfonic acid and 2-oxynaphthalene are mixed in a mixture of 1500 parts of water and 200 parts of 30% sodium hydroxide solution and 10 parts of sugar, then 41.6 parts of the azo dye from dianotized 1-amino-2-oxynaphthalene-4-sulfonic acid and 1-oxynaphthalene are added, and the mixture is refluxed for 4 hours.

   After cooling down to <B> 60 '</B>, 10% hydrochloric acid and a little formic acid are used to make a weak lacquer wall and the blue solution is evaporated to dryness in a vacuum.



  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 ohrom- haltigen Azofarbstoffes durch Einwirkung des chromhaltigen Azofarbstoffes, der durch Chromieren des Azofarbstoffes aus dianotier ter 1-Amino-2-oxynaphthalin-4-sulfonsäure und 2-Oxynaphthalin entsteht, auf den Azo- farbstoff aus dianotierter 1-Amino-2-oxynaph- thalin-4-sulfonsäure und 1-Oxynaphthalin, dadurch gekennzeichnet, PATENT CLAIM: Process for the production of an ohromal azo dye by the action of the chromium-containing azo dye, which is formed by chromating the azo dye from dianotized 1-amino-2-oxynaphthalene-4-sulfonic acid and 2-oxynaphthalene, on the azo dye from dianotated 1- Amino-2-oxynaphthalene-4-sulfonic acid and 1-oxynaphthalene, characterized in that dass diese Einwir kung in alkalischem Medium erfolgt. Der erhaltene chromhaltige Azofarbstoff ist in Wasser leicht löslich und färbt Wolle aus organischsaureai-schwefelsaurem Bade in marineblauen Tönen von vorzüglichen Echt- heiten. that this action takes place in an alkaline medium. The chromium-containing azo dye obtained is easily soluble in water and dyes wool from organic acid-sulfuric acid bath in navy blue shades of excellent fastness properties.
CH170332D 1932-11-07 1932-11-07 Process for the preparation of a chromium-containing azo dye. CH170332A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH170332T 1932-11-07
CH166497T 1934-01-15

Publications (1)

Publication Number Publication Date
CH170332A true CH170332A (en) 1934-06-30

Family

ID=25718314

Family Applications (1)

Application Number Title Priority Date Filing Date
CH170332D CH170332A (en) 1932-11-07 1932-11-07 Process for the preparation of a chromium-containing azo dye.

Country Status (1)

Country Link
CH (1) CH170332A (en)

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