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CH110878A - Process for the production of a new dye. - Google Patents

Process for the production of a new dye.

Info

Publication number
CH110878A
CH110878A CH110878DA CH110878A CH 110878 A CH110878 A CH 110878A CH 110878D A CH110878D A CH 110878DA CH 110878 A CH110878 A CH 110878A
Authority
CH
Switzerland
Prior art keywords
dye
production
new dye
parts
new
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 CH110878A publication Critical patent/CH110878A/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 neuen     Farbstoffes.       Es wurde gefunden, dass man einen neuen  Farbstoff erhält, wenn man die     3-Oxynaph-          tlialiri-1,8-dilzarbonsiiure    mit     diazotiertem        5-          Nitro-2-arnino-l-plieirol    kuppelt und den so  erhaltenen     Farbstoff    mit     Chromfluorid    behan  delt. Der neue     Farbstoff    bildet ein schwärz  liches Pulver, löst sich in Wasser unter Zu  satz von Natronlauge mit violetter Farbe und  erzeugt im     Chromdruck.    auf Baumwolle sehr  echte graue Töne.  



       Beispiel:     15,4 Teile     5-Niti,o-2-amino-l-phenol    werden  wie üblich     diazotiert    und in eine Lösung von  <B>21,6</B> Teilen     3-Oxynaphtbaiin-1,8-dilzarbon-          säureanhydrid,    8 Teilen     Natronlauge    und 40  Teilen Soda in 500 Teilen Wasser einge  tragen.     AIan    rührt, bis die     Diazoverbindung     verschwunden ist. Hierauf salzt man     finit     Kochsalz aus     und    filtriert den ausgeschiedenen  Farbstoff.  



  22 Teile des     Dinatriumsalzes    des Farb  stoffes werden in 500 Teilen Wasser gelöst    und     finit    einer     Fluorchromlösung,    entsprechend  10 Teilen     Cra03,    versetzt.     Man    kocht einige  Zeit, zweckmässig in Gegenwart von     Cxlas-          pulver,    filtriert, löst den Rückstand in ver  dünnter Natronlauge auf, filtriert, neutralisiert  mit Mineralsäure und fällt den     Farbstoff    durch  Kochsalz aus.



      Process for the production of a new dye. It has been found that a new dye is obtained if the 3-Oxynaph- tlialiri-1,8-Dilzarbonsiiure is coupled with diazotized 5-nitro-2-arnino-1-Plieirol and treated the dye thus obtained with chromium fluoride. The new dye forms a blackish powder, dissolves in water with the addition of caustic soda with a violet color and is produced using chrome printing. very real gray tones on cotton.



       Example: 15.4 parts of 5-niti, o-2-amino-1-phenol are diazotized in the usual way and converted into a solution of 21.6 parts of 3-oxynaphthalene-1,8-dilzarboxylic anhydride , 8 parts of sodium hydroxide solution and 40 parts of soda in 500 parts of water are included. Keep stirring until the diazo compound has disappeared. Then you salt out finite common salt and filter the precipitated dye.



  22 parts of the disodium salt of the dye are dissolved in 500 parts of water and a fluorochrome solution, equivalent to 10 parts of Cra03, is added. It is boiled for some time, suitably in the presence of Cxlas powder, filtered, the residue is dissolved in dilute sodium hydroxide solution, filtered, neutralized with mineral acid and the dye is precipitated with sodium chloride.

Claims (1)

PATENTANSPRUCH Verfahren zur Herstellung eines neuen Farbstoffes, dadurch gekennzeichnet, dass man die 3-Oxynaphthalin-1,8-dikarbonsäure mit di- azotiertem 5-Nitro-2-amirio-l-pheriol kuppelt und den so erhaltenen Farbstoff mit Chrom- fluorid behandelt. Der neue Farbstoff bildet ein schwärzliches Pulver, löst sich in Wasser unter Zusatz von Natronlauge mit violetter Farbe und erzeugt im Chromdruck auf Baum wolle sehr echte graue Töne. PATENT CLAIM Process for the production of a new dye, characterized in that the 3-oxynaphthalene-1,8-dicarboxylic acid is coupled with diacotized 5-nitro-2-amirio-1-pheriol and the dye thus obtained is treated with chromium fluoride. The new dye forms a blackish powder, dissolves in water with the addition of caustic soda with a violet color and creates very real gray tones in the chrome print on cotton.
CH110878D 1923-12-28 1923-12-28 Process for the production of a new dye. CH110878A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH110287T 1923-12-28
CH110878T 1923-12-28

Publications (1)

Publication Number Publication Date
CH110878A true CH110878A (en) 1925-07-01

Family

ID=25707669

Family Applications (1)

Application Number Title Priority Date Filing Date
CH110878D CH110878A (en) 1923-12-28 1923-12-28 Process for the production of a new dye.

Country Status (1)

Country Link
CH (1) CH110878A (en)

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