CH86683A - 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
CH86683A
CH86683A CH86683DA CH86683A CH 86683 A CH86683 A CH 86683A CH 86683D A CH86683D A CH 86683DA CH 86683 A CH86683 A CH 86683A
Authority
CH
Switzerland
Prior art keywords
sep
dye
preparation
acidic dye
containing chromium
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 CH86683A publication Critical patent/CH86683A/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)
  • Paper (AREA)
  • Coloring (AREA)

Description

  

  Verfahren zur Herstellung eines     ehroinhalt!.gen    sauren Farbstoffs.    Es wurde gefunden,     dass        inan    den metall  empfindlichen     Azofarbstoff        aus        diazotierteni          6-Nitro-4-cblot--2-atnido-l-oxybeiizol    und     2-          Amidonaphtaliii-6-sulfonsäure    durch Behand  lung mit chromabgebenden Mitteln in einen       chroinhaltigen    sauren Farbstoff überführen  kann,     weleber    das     Chroin    in maskierter Bin  dung enthält, indem dasselbe ans der wäs  serigen Lösung durch Soda,

   Natronlauge oder  Ammoniak nicht gefällt wird. Der Farbstoff  ist wasserlöslich, säurebeständig, nicht kupfer  empfindlich und färbt animalische Fasern     aus     saurem Bad in blaugrünen,     walk-    Lind licht  echten Tönen.  



  <I>Beispiel:</I>  <B>5</B> Teile     Azofarbstoff    aus     diazotiertem        6-          Nitro-4-elilor-2-ainido-l-oxybeiizol    und     2-          Amidonaphtaliii-6-sulfonsätii-e    werden mit 200  Teilen Wasser,     7,5    Teilen     Chromfluorid        (init     einem     36,80/0        Cr203    entsprechenden Chrom  gehalt) und 10-20 Teilen Glaspulver oder  der entsprechenden Menge eines andern     saure-          bindenden    Mittels, wie     Natriumacetat,

          Am-          moniumlaktat    und dergleichen, während 24  Stunden unter     Rückfluss    gekocht. Es scheidet  sich die Chromverbindung der Farbsäure als         schwerIöslicher        Niedersehlag    aus.

   Derselbe  wird     abfiltriert,    in     halter    verdünnter -Natron  lauge (enthaltend<B>1</B> Teil     Na011)    gelöst und  mit     Essig#,:i#ii e        sehwaeh        antgesänert.    Ans der  intensiv grünen     Usung    wird der Farbstoff  durch     Aussalzen    abgeschieden,     abfiltriert,        ge-          presst    und getrocknet.



  Process for the production of an acidic dye with its own content. It has been found that inan the metal-sensitive azo dye from diazotized 6-nitro-4-cblot - 2-atnido-1-oxybeiizole and 2-amidonaphthalene-6-sulfonic acid can be converted into a chroin-containing acid dye by treatment with chromium-donating agents, which contains the chroin in a masked bond by adding it to the aqueous solution through soda,

   Sodium hydroxide or ammonia is not precipitated. The dye is water-soluble, acid-resistant, not sensitive to copper and dyes animal fibers from an acid bath in blue-green, soft and light shades.



  <I> Example: </I> <B> 5 </B> parts of azo dye from diazotized 6-nitro-4-elilor-2-ainido-1-oxybeiizole and 2-amidonaphthalene-6-sulfonic acid are added to 200 parts Water, 7.5 parts of chromium fluoride (with a chromium content corresponding to 36.80 / 0 Cr203) and 10-20 parts of glass powder or the corresponding amount of another acid-binding agent, such as sodium acetate,

          Ammonium lactate and the like, refluxed for 24 hours. The chromium compound of the coloric acid separates out as a poorly soluble deposit.

   The same is filtered off, dissolved in halter diluted sodium hydroxide solution (containing <B> 1 </B> part Na011) and soaked with vinegar #,: i # ii e sehwaeh. The dye is deposited on the intensely green solution by salting out, filtered off, pressed and dried.

Claims (1)

<B>PATENTANSPRUCH:</B> Verfahren zur Herstellunköl, eines ehroni- lialtigen sauren Farbstoffes, dadurch gekenn- zeiehnet, dass man den nietallempfindlichen Azofarbstoff aus diazotiertem 6-Nitro-4-elilor- 2-aiiiido-l-oxvberizol und '2-Aiiiidoiiaphtaliii- 6-sLilfoilsätire init chroniab.-ebenden Mitteln EMI0001.0060 behandelt. <tb> Der <SEP> <B> PATENT CLAIM: </B> Process for the production of an honest acidic dye, characterized in that the rivet-sensitive azo dye is made from diazotized 6-nitro-4-elilor-2-aiiiido-1-oxvberizole and '2 -Aiiiidoiiaphtaliii- 6-sLilfoilsätire init chroniab.-leveling means EMI0001.0060 treated. <tb> The <SEP> Farbstoff <SEP> euthält <SEP> <U>das</U> <SEP> Chrom <SEP> in <SEP> nias kierter <SEP> Bindung, <SEP> indem <SEP> dasselbe <SEP> aus <SEP> der <tb> isserj-en <SEP> Li;sung <SEP> dureb. <SEP> Soda, <SEP> Natronlau-e <tb> w <SEP> äs <tb> oder <SEP> Auinioniak <SEP> nicht <SEP> gefällt <SEP> wird, <SEP> ist <SEP> wasser löslich, <SEP> nieht <SEP> kupfereml;find lieli <SEP> und <SEP> färbt <SEP> animalische <SEP> Fasern <SEP> aus <SEP> saureni <tb> Bad <SEP> in <SEP> blaugrünen, <SEP> walk- <SEP> und <SEP> lichtechten <tb> Tönen. Dye <SEP> contains <SEP> <U> the </U> <SEP> chromium <SEP> in <SEP> nias marked <SEP> bond, <SEP> by <SEP> the same <SEP> from <SEP> the <tb> isserj-en <SEP> Li; sung <SEP> dureb. <SEP> Soda, <SEP> Natronlau-e <tb> w <SEP> as <tb> or <SEP> Auinioniak <SEP> does not <SEP> is precipitated <SEP> is, <SEP> is <SEP> water-soluble, <SEP> not <SEP> copper eml; find lieli <SEP> and <SEP> colors <SEP> animal <SEP> fibers <SEP> from <SEP> saureni <tb> Bad <SEP> in <SEP> blue-green, <SEP> walk- <SEP> and <SEP> lightfast <tb> tones.
CH86683D 1917-10-12 1917-10-12 Process for the preparation of an acidic dye containing chromium. CH86683A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH86683T 1917-10-12
CH80096T 1917-10-12

Publications (1)

Publication Number Publication Date
CH86683A true CH86683A (en) 1920-09-16

Family

ID=25702624

Family Applications (1)

Application Number Title Priority Date Filing Date
CH86683D CH86683A (en) 1917-10-12 1917-10-12 Process for the preparation of an acidic dye containing chromium.

Country Status (1)

Country Link
CH (1) CH86683A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE744303C (en) * 1940-06-04 1944-01-13 Ig Farbenindustrie Ag Process for the preparation of chromium-containing o-oxyazo dyes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE744303C (en) * 1940-06-04 1944-01-13 Ig Farbenindustrie Ag Process for the preparation of chromium-containing o-oxyazo dyes

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