CH86688A - Process for the preparation of an acidic dye containing chromium. - Google Patents

Process for the preparation of an acidic dye containing chromium.

Info

Publication number
CH86688A
CH86688A CH86688DA CH86688A CH 86688 A CH86688 A CH 86688A CH 86688D A CH86688D A CH 86688DA CH 86688 A CH86688 A CH 86688A
Authority
CH
Switzerland
Prior art keywords
acid
acidic
dye containing
preparation
acidic 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 CH86688A publication Critical patent/CH86688A/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

  

  verfahren zur Herstellung eines     cvroinhalltiben    sauren     Farbstoff.       Es wurde gefunden, dass man den metall  empfindlichen     Azofarbstoff    ans     diazotiertein          5-Nitro-2-ainido-l-oxybenzol    und der     N-Me-          thylensulfosäureder        2-Aminonaplitalin-7-stilfo-          säure    durch Behandlung mit chromabgebenden  Mitteln in einen chromhaltigen sauren Farb  stoff überführen kann, welcher das Chrom in  maskierter Bindung enthält, indem dasselbe  aus der wässerigen Lösung durch Soda,  Natronlauge oder Ammoniak nicht gefällt  wird.

   Der     Farbstoff    ist wasserlöslich, säure  beständig, nicht kupferempfindlich und färbt  animalische Fasern aus     saurein    Bad in blau  stichig grünen, walk- und lichtechten Tönen.  <I>Beispiel:</I>  5 Teile     Azofarbstoff    aus     diazotiertein          5-Nitro-2-amido-l-oxy        benzol    und der     N-111e-          thylensulfosäure    der     2-Aniinonaiplitaliii-7-su        Ifo-          säure    werden mit 200 Teilen Wasser, 7,5  Teilen     Chromfliiorid    (mit einem     36,

  80/0        Ci =Oa     entsprechenden Chromgehalt) und 10-20  Teilen Glaspulver oder der entsprechenden  Menge eines andern säurebindenden Mittels,  wie     Natriumacetat,        Amtrioniumlaktat    und  dergleichen, während 24 Stunden     unter        Rück-          fluss    gekocht. Es scheidet sich die Clrroniver-         bindung    der Farbsäure als     scliwerlöslicber          Niederschlag    aus.

   Derselbe wird     abfiltriert,     in kalter.     verdünnter    Natronlauge     (enthaltend     1 Teil     NaOH)    gelöst und mit     l@ssigsäure     schwach     arigesiiiiei-t.    Aus der     intensiv    grünen  Lösung wird der Farbstoff durch Aussahen  abgeschieden,     abfilti icrt,        geprel.)t    und ge  trocknet.



  Process for the production of a cvroinhalltiben acidic dye. It has been found that the metal-sensitive azo dye can be diazotized in 5-nitro-2-ainido-1-oxybenzene and the N-methylene sulfonic acid of 2-aminonaplitalin-7-stilfoic acid by treatment with chromium donating agents in a chromium-containing acidic dye can transfer, which contains the chromium in a masked bond, in that the same is not precipitated from the aqueous solution by soda, sodium hydroxide or ammonia.

   The dye is water-soluble, acid-resistant, not sensitive to copper and dyes animal fibers from an acidic bath in blue, green, mill-fast and light-fast shades. <I> Example: </I> 5 parts of azo dye from diazotized 5-nitro-2-amido-1-oxybenzene and the N-111ethylene sulfonic acid of 2-aniinonaiplitaliii-7-su ifo acid are mixed with 200 parts of water, 7.5 parts of chromium fluid (with a 36,

  80/0 Ci = Oa corresponding chromium content) and 10-20 parts glass powder or the corresponding amount of another acid-binding agent, such as sodium acetate, amtrionium lactate and the like, boiled under reflux for 24 hours. The chloride compound of the color acid separates out as a slightly soluble precipitate.

   The same is filtered off, in cold. dilute sodium hydroxide solution (containing 1 part NaOH) dissolved and weakly arigesiiiiei-t with aqueous acid. The dye is deposited from the intensely green solution by looking, filtered off, pressed and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines clri"oni- haltigen, sauren Farbstoffes, dadurch gekenn- zeiebnet, dah murr den metallempfindlichen Azofarbstoff aus diazotiertem 1-oxybetizol lind der N-llethylensulfos: PATENT CLAIM: Process for the production of an acidic dye containing clri "oni, characterized by the fact that the metal-sensitive azo dye from diazotized 1-oxybetizole and N-llethylene sulfos: i.ure der 2-Aminonaplrtalin-7-sulfosänre mit chr@un- abgebenden Mitteln behaindelt. Der Farbstoff eirtliiilt das Chrom in mas kierter Bindung, indem dasselbe aus der wiisserigen Lösung durch Soda. Natronlauge oder Amniiuüak nicht gefiillt wird, I acid of 2-aminonaplrtalin-7-sulfosane treated with chr @ non-releasing agents. The coloring agent separates the chromium in a masked bond by removing it from the aqueous solution with soda. Caustic soda or amniotic fluid is not filled, ist wasser- lüslich, säurebeständig, nicht Iznpfereinpfind- lieh und färbt ariiniitlisclie Fasern aus saurem Baal in blaustichig grünen, walk- und licht echten Tönen. is water-soluble, acid-resistant, not sensitive to the heart and dyes aromatic fibers from acidic Baal in bluish green, whipped and light shades.
CH86688D 1917-10-12 1917-10-12 Process for the preparation of an acidic dye containing chromium. CH86688A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH86688T 1917-10-12
CH80096T 1917-10-12

Publications (1)

Publication Number Publication Date
CH86688A true CH86688A (en) 1920-09-16

Family

ID=25702629

Family Applications (1)

Application Number Title Priority Date Filing Date
CH86688D CH86688A (en) 1917-10-12 1917-10-12 Process for the preparation of an acidic dye containing chromium.

Country Status (1)

Country Link
CH (1) CH86688A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1006988B (en) * 1954-03-05 1957-04-25 Geigy Ag J R Process for the production of chromium-containing azo dyes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1006988B (en) * 1954-03-05 1957-04-25 Geigy Ag J R Process for the production of chromium-containing azo dyes
DE1006988C2 (en) * 1954-03-05 1957-10-03 Geigy Ag J R Process for the production of chromium-containing azo dyes

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