CH165830A - 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
CH165830A
CH165830A CH165830DA CH165830A CH 165830 A CH165830 A CH 165830A CH 165830D A CH165830D A CH 165830DA CH 165830 A CH165830 A CH 165830A
Authority
CH
Switzerland
Prior art keywords
chromium
azo dye
production
oxynaphthalene
containing 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 CH165830A publication Critical patent/CH165830A/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)
  • Chemical Treatment Of Metals (AREA)
  • Coloring (AREA)

Description

  

  Verfahren zur Herstellung eines neuen     chromhaltigen        Farbstoffes.       Es wurde gefunden,     dass    man einen neuen  chromhaltigen     Azofarbstoff    durch Einwir  kung des chromhaltigen     Azofarbsfoffes,    der  durch     Chromieren    des     Azofarbstoffes    aus       diazotierter        1-Amino-2-oxynaphtha.lin-4-sul-          fonsä.ure    und     2-Oxynaphthalin    entsteht, auf  den selben chromfreien     Azofarbstoff    erhal  ten kann,

   wenn die Einwirkung in     alka-          lisehem    Medium erfolgt.  



  Der erhaltene chromhaltige     Azofarbstoff     löst sich in Wasser mit blauer Farbe und  färbt Wolle aus .saurem Bade in marine  blauen     Tönen    von vorzüglicher Echtheit.  



  <I>Beispiel:</I>  83,2 Teile des     Azofarbstoffes    aus     diazo-          tierter        1.-Amino    - ? -     oxynaphthalin-4-sulfon-          säure    und     2-Oxynaphthalin    in Form seine       Natriumsalzes    werden in 1600 Teilen Was  ser suspendiert, mit einer     Chromformia.t-          lösung,    entsprechend 16,7 Teilen     Cr203,    Ver  setzt und 9 Stunden unter     Rückfluss    gekocht.

      Dann wird mit 200 Teilen 30 %     iger    Natron  lauge alkalisch gestellt; hierauf werden wei  tere 27,7 Teile desselben, jedoch chromfreien       Azofarbstoffes    zugegeben und das Ganze  drei     Stunden    gekocht. Nach dem Abkühlen  auf 50 bis<B>60'</B> wird mit 10%iger Salzsäure       lLeutralisiert    und mit geringen Mengen Amei  sensäure schwach     lackmussauer    gestellt. Nach  dem     Abfiltrieren    von geringen Mengen Ver  unreinigungen wird im Vakuum zur Trockne  verdampft.  



  Zu demselben     chromhaltigen        Azofarb-          stoff    gelangt man, wenn statt Natronlauge  andere alkalisch wirkende Substanzen, wie  zum Beispiel Kalilauge, Soda, Pottasche,  Borax,     Magnesiumoxyd,        Calciumoxyd,    Am  moniak oder     Trialkaliphosphat    verwendet  werden.



  Process for the production of a new chromium-containing dye. It has been found that a new chromium-containing azo dye is produced by the action of the chromium-containing azo dye produced by chromating the azo dye from diazotized 1-amino-2-oxynaphtha.lin-4-sulphonic acid and 2-oxynaphthalene on the same can receive chromium-free azo dye,

   if the action takes place in alkaline medium.



  The chromium-containing azo dye obtained dissolves in water with a blue color and dyes wool from acidic bath in marine blue shades of excellent fastness.



  <I> Example: </I> 83.2 parts of the azo dye from diazo- tated 1.-amino -? - oxynaphthalene-4-sulfonic acid and 2-oxynaphthalene in the form of its sodium salt are suspended in 1600 parts of water, treated with a chromium formate solution, corresponding to 16.7 parts of Cr203, and refluxed for 9 hours.

      Then it is made alkaline with 200 parts of 30% sodium hydroxide solution; then further 27.7 parts of the same, but chromium-free azo dye are added and the whole is boiled for three hours. After cooling to 50 to 60 ', it is neutralized with 10% hydrochloric acid and weakly lacquered wall with small amounts of formic acid. After filtering off small amounts of impurities, it is evaporated to dryness in vacuo.



  The same chromium-containing azo dye is obtained if other alkaline substances such as potassium hydroxide, soda, potash, borax, magnesium oxide, calcium oxide, ammonia or trialkali phosphate are used instead of sodium hydroxide solution.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen chromhaltien Azofarbstoffes durch Einwir t' kung des chromhaltigen Azofarbstoffes, der durch Chromieren des Azofarbstoffes aus diazotierter 1-Amino-2-oxynaphthalin-4-sul- fonsäure und 2-Oxynaphthalin entsteht, auf den selben chromfreien Azofarbstoff, da durch gekennzeichnet, dass die Einwirkung in alkalischem Medium erfolgt. PATENT CLAIM: Process for the production of a new chromium-containing azo dye by action of the chromium-containing azo dye, which is formed by chromating the azo dye from diazotized 1-amino-2-oxynaphthalene-4-sulfonic acid and 2-oxynaphthalene, on the same chromium-free azo dye, as characterized in that the action takes place in an alkaline medium. Der erhaltene chromhaltige Azofarbstoff löst .sich in Wasser mit haauer Farbe und färbt Wolle aus saurem Bade in marine blauen Tönen von vorzüglicher Echtheit. The chromium-containing azo dye obtained dissolves in water with a rough color and dyes wool from an acid bath in marine blue shades of excellent fastness.
CH165830D 1932-11-08 1932-11-08 Process for the production of a new chromium-containing dye. CH165830A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH165830T 1932-11-08

Publications (1)

Publication Number Publication Date
CH165830A true CH165830A (en) 1933-12-15

Family

ID=4418553

Family Applications (1)

Application Number Title Priority Date Filing Date
CH165830D CH165830A (en) 1932-11-08 1932-11-08 Process for the production of a new chromium-containing dye.

Country Status (1)

Country Link
CH (1) CH165830A (en)

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