CH131502A - Process for the production of a new chromium-containing azo dye. - Google Patents

Process for the production of a new chromium-containing azo dye.

Info

Publication number
CH131502A
CH131502A CH131502DA CH131502A CH 131502 A CH131502 A CH 131502A CH 131502D A CH131502D A CH 131502DA CH 131502 A CH131502 A CH 131502A
Authority
CH
Switzerland
Prior art keywords
chromium
dye
production
azo dye
containing azo
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 CH131502A publication Critical patent/CH131502A/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

  

  <B>Zusatzpatent</B> zum Hauptpatent Nr.<B>128006.</B>    Verfahren zur Herstellung eines neuen     chromhaltigen        Azofarbstoffes.       Es wurde gefunden, dass man einen  neuen: wertvollen     ehromh.altigen        Azofarb-          stoff    erhält, wenn man den Farbstoff aus       diazotiertem        5-Nitro-2-amino-l-phenol    und  -     W-Amino)        -benzoylamino    - 5 -     oxynaphtalin-          7-sulfosäure    mit     ehromabgeben-den    Mitteln  behandelt.

   Der neue chromhaltige Farbstoff  stellt trocken ein dunkelblaues Pulver dar,  welches sich in Wasser mit blaugrauer und  in verdünnter     Sodalösung    mit     rotstiehig     blauer Farbe löst. Baumwolle wird aus neu  tralem Bade in echten blaustichig     grauen     Tönen gefärbt.  



  5,23 Gewichtsteile des Farbstoffes aus       diazotiertem        5-iVTitro-2-amino-l-phenol    und  2 -     (3'-A-mino)        -benzoylamino    - 5     -oxynaphtalin-          7-sulfosäure    werden mit einer<B>1,522</B> Teilen       Cr_0entsprechenden    Menge     Fluorchrom    und  8 Teilen essigsaurem Natrium in 600 Teilen  Wasser     während    48 Stunden am Rückfluss-    kühler zum Sieden erhitzt. Hierauf wird  heiss filtriert und aus dem Filtrat die Chrom  verbindung mit Kochsalz abgeschieden.



  <B> Additional patent </B> to main patent no. <B> 128006. </B> Process for the production of a new chromium-containing azo dye. It has been found that a new: valuable Ehromhaltigen azo dye is obtained if the dye is obtained from diazotized 5-nitro-2-amino-1-phenol and -W-amino) -benzoylamino-5-oxynaphthalene-7- sulfonic acid treated with Ehroma-releasing agents.

   The new chromium-containing dye is a dry dark blue powder that dissolves in water with a blue-gray color and in dilute soda solution with a reddish blue color. Cotton is dyed from neutral bath in real bluish gray tones.



  5.23 parts by weight of the dye from diazotized 5-iVtitro-2-amino-1-phenol and 2- (3'-A-mino) -benzoylamino-5-oxynaphthalene-7-sulfonic acid have a <B> 1.522 </ B > Parts of Cr_0 corresponding amount of fluorochrome and 8 parts of sodium acetate in 600 parts of water heated to boiling for 48 hours on a reflux condenser. It is then filtered while hot and the chromium compound with common salt is deposited from the filtrate.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung .eines chrom- haltigen Azofarbstoffes, dadurch gekenn zeichnet, dass man ,den Farbstoff aus -di@azo- tiertem 5-Nitro-2-amino-l-phenol und 2-(3'- A-mino) -benzoylamino-5-oxynaphtalin- 7 - sul- fosäure mit chromabgebenden Mitteln be handelt. PATENT CLAIM: A process for the production of a chromium-containing azo dye, characterized in that the dye is made from di @ azo-tated 5-nitro-2-amino-1-phenol and 2- (3'-A-mino) -benzoylamino-5-oxynaphthalene- 7 - sulphonic acid treated with chromium-releasing agents. Der .neue chromhaltige Farbstoff stellt trocken ein dunkelblaues Pulver dar, welches sich in Wasser mit blaugrauer und in verdünnter Sodalösung mit rotstichig blauer Farbe löst. Baumwolle wird aus neu tralem Bade in echten blaustichig grauen Tönen gefärbt. The new chromium-containing dye is a dry dark blue powder which dissolves in water with a blue-gray color and in dilute soda solution with a reddish blue color. Cotton is dyed from neutral bath in real bluish gray tones.
CH131502D 1927-08-19 1927-08-19 Process for the production of a new chromium-containing azo dye. CH131502A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH128006T 1927-08-19
CH131502T 1927-08-19

Publications (1)

Publication Number Publication Date
CH131502A true CH131502A (en) 1929-02-15

Family

ID=25711021

Family Applications (1)

Application Number Title Priority Date Filing Date
CH131502D CH131502A (en) 1927-08-19 1927-08-19 Process for the production of a new chromium-containing azo dye.

Country Status (1)

Country Link
CH (1) CH131502A (en)

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