CH172578A - Process for the production of a chromium-containing dye. - Google Patents

Process for the production of a chromium-containing dye.

Info

Publication number
CH172578A
CH172578A CH172578DA CH172578A CH 172578 A CH172578 A CH 172578A CH 172578D A CH172578D A CH 172578DA CH 172578 A CH172578 A CH 172578A
Authority
CH
Switzerland
Prior art keywords
chromium
azo dye
oxynaphthalene
amino
mixture
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 CH172578A publication Critical patent/CH172578A/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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  Verfahren zur Herstellung eines chromhaltigen Farbstoffes.    Es wurde gefunden, dass man einen  chromhaltigen     Azofarbstoff    aus dem Gemisch  der komplexen Chromverbindung des     Azo-          farbstoffes    aus dianotierter     1-Amino-2-oxy-          riaphtbalin-4-sulfonsäure    und     2-Oxynaphthalin     mit dem     Azofarbstoff    aus     diazotierter4-Methyl-          2-amino-l-phenol-b-sulfonsäure    und     2-Oxy-          naphthalin    herstellen kann,

   wenn man dieses  Gemisch in wässerigem Medium mit     Alkali-          salzen,    die in wässeriger Lösung höchstens  schwach hydrolytisch gespalten sind, erwärmt.  



  Der erhaltene chromhaltige     Azofarbstoff     stellt ein     violettschwarz    gefärbtes Pulver dar,  das sich in Wasser sehr leicht mit violetter  Farbe löst und Wolle aus     organischsaurem-          schwefelsaurem    Bade in     rötlichmarineblauen     Tönen von sehr guten     Echtheiten    färbt.  



  <I>Beispiel:</I>  66 Teile des in saurem Medium herge  stellten chromhaltigen Farbstoffes aus dem       Azofarbstoff    aus dianotierter     1-Amino-2-oxy-          naphthalin-4-sulfonsäure    und     2-Oxynaphthalin       werden in Gegenwart von<B>18,5</B> Teilen       Ammoniumacetat    in 800 Teilen Wasser ge  löst und mit einer Lösung von 28,6 Teilen  des     Azofarbstoffes    aus dianotierter     4-1Vlethyl-          2-amino-l-phenol-b-sulfonsäure    und     2-Oxy-          naphthalin    in 800 Teilen Wasser 12 Stunden       rückfliessend    gekocht.

   .Das     Chromierungs-          gemisch    wird zur Entfernung von Verun  reinigungen filtriert und aus dem Filtrat der  neue chromhaltige     Farbstoff    durch     Aussalzen     abgeschieden.  



  Zu demselben Farbstoff gelangt man,  wenn man statt     Ammoniumacetat    andere       Alkalisalze,    die in wässeriger Lösung höch  stens schwach hydrolytisch gespalten sind,  wie     Natriumacetat,    Natriumsulfat, Natrium  chlorid,     Kaliumsulfat,        Natriumformiat,        benzol-          bezw.        naphthalinsulfonsaures    Natrium, Am  moniumsulfatoderMagnesiumsulfatverwendet.



  Process for the production of a chromium-containing dye. It has been found that a chromium-containing azo dye from the mixture of the complex chromium compound of the azo dye from dianotated 1-amino-2-oxyriaphtbalin-4-sulfonic acid and 2-oxynaphthalene with the azo dye from diazotized 4-methyl-2-amino can produce l-phenol-b-sulfonic acid and 2-oxynaphthalene,

   if this mixture is heated in an aqueous medium with alkali salts which are at most weakly hydrolytically cleaved in aqueous solution.



  The chromium-containing azo dye obtained is a violet-black colored powder which dissolves very easily in water with a violet color and dyes wool from an organic-acidic sulfuric acid bath in reddish-navy blue shades of very good fastness properties.



  <I> Example: </I> 66 parts of the chromium-containing dye produced in an acid medium from the azo dye from dianotated 1-amino-2-oxynaphthalene-4-sulfonic acid and 2-oxynaphthalene are in the presence of <B> 18, 5 parts of ammonium acetate dissolved in 800 parts of water and dissolved with a solution of 28.6 parts of the azo dye from dianotated 4-1Vlethyl-2-amino-1-phenol-b-sulfonic acid and 2-oxynaphthalene in 800 parts Water boiled under reflux for 12 hours.

   The chromating mixture is filtered to remove impurities and the new chromium-containing dye is separated out from the filtrate by salting out.



  The same dye is obtained if, instead of ammonium acetate, other alkali salts, which are most weakly hydrolytically cleaved in aqueous solution, such as sodium acetate, sodium sulfate, sodium chloride, potassium sulfate, sodium formate, benzene respectively. sodium naphthalenesulfonic acid, ammonium sulfate, or magnesium sulfate is used.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines chrom- haltigen Azofarbstoffes aus dem Gemisch der komplexen Chromverbindung des Azofarb- stoffes aus diazotierter 1-Amino-2-oxynaph- thalin-4-sulfonsäure und 2-Oxynaphthalin mit dem Azofarbstoff aus diazotierter 4-Methyl- 2-amino-l-phenol-"5-sulfonsäure und 2-Oxy- PATENT CLAIM: Process for the production of a chromium-containing azo dye from the mixture of the complex chromium compound of the azo dye from diazotized 1-amino-2-oxynaphthalene-4-sulfonic acid and 2-oxynaphthalene with the azo dye from diazotized 4-methyl- 2- amino-l-phenol- "5-sulfonic acid and 2-oxy- naphthalin, dadurch gekennzeichnet, dass dieses Gemisch in wässerigem Medium mit Alkalisalzen, die in wässeriger .Lösung höch stens schwach hydrolytisch gespalten sind, erwärmt wird. Der erhaltene chromhaltige _Azofarbstoff stellt ein violettschwarz gefärb-.- Pulver dar, das sich in Wasser sehr leicht mit violetter Farbe löst und Wolle aus organischsaurem- schwefelsaurem Bade in rötlichmarineblauen Tönen von sehr guten Echtheiten färbt. naphthalene, characterized in that this mixture is heated in an aqueous medium with alkali salts which are at most weakly hydrolytically cleaved in aqueous .Lösung. The obtained chromium-containing azo dye is a violet-black colored -.- powder that dissolves very easily in water with a violet color and dyes wool from organic acid-sulfuric acid bath in reddish-navy blue shades of very good fastness properties.
CH172578D 1933-03-31 1933-03-31 Process for the production of a chromium-containing dye. CH172578A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH169694T 1933-03-31
CH172578T 1933-03-31

Publications (1)

Publication Number Publication Date
CH172578A true CH172578A (en) 1934-10-15

Family

ID=25718759

Family Applications (1)

Application Number Title Priority Date Filing Date
CH172578D CH172578A (en) 1933-03-31 1933-03-31 Process for the production of a chromium-containing dye.

Country Status (1)

Country Link
CH (1) CH172578A (en)

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