CH131253A - Process for the production of a new azo dye. - Google Patents

Process for the production of a new azo dye.

Info

Publication number
CH131253A
CH131253A CH131253DA CH131253A CH 131253 A CH131253 A CH 131253A CH 131253D A CH131253D A CH 131253DA CH 131253 A CH131253 A CH 131253A
Authority
CH
Switzerland
Prior art keywords
dye
blue
production
chromium
azo 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 CH131253A publication Critical patent/CH131253A/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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Coloring (AREA)

Description

  

  Verfahren zur Herstellung eines neuen     Azofarbstoffes.       Es wurde gefunden, dass man einen neuen  wertvollen     Farbstoff    erhält, wenn man den       o-Oxyazofarbstoff,    welcher durch Vereinigen  von dianotiertem     5-Nitro-2-amirro-l-phenol    mit       2-(2'-Methoxy)-phenylamino-5-oxynaphtalin-7-          sulfosäure    entsteht, mit Chrom abgebenden  Mitteln behandelt.

   Der neue     Farbstoff    stellt  ein dunkles Pulver dar, löst sich in Wasser  mit blauer, in verdünnter     Sodalösung    mit       grünstichig    blauer, in konzentrierter Schwefel  säure mit violetter Farbe auf und färbt Wolle  aus mineralsaurem Bade in     grünstichig    blauen  und Kunstseide     (Viscose)    aus     sodaalkalischem     Bade in grünblauen Tönen mit guten Echt  heitseigenschaften.  



       Beispiel:     5,1 Gewichtsteile des Farbstoffes aus     dia-          zotiertem        5-Nitro-2-aminophenol    und 2-(2'       Methoxy)-phenylamino-5-oxynaphtalin-7-sulfo-          säure    werden in 400 Teilen     Wasser    gelöst  und mit einer 1,52 Teilen     CrY0s    entsprechenden  Menge     Fluorchrom    unter Zusatz von 1,36  Teilen     Natriumacetat    längere Zeit unter Rück-         fluss    zum Sieden erhitzt.

   Hierauf wird der       Farbstoff    durch Zusatz von Kochsalz abge  schieden, filtriert, gewaschen und bei mässi  ger Temperatur getrocknet.



  Process for the production of a new azo dye. It has been found that a new valuable dye is obtained by using the o-oxyazo dye, which is obtained by combining dianotated 5-nitro-2-amirro-1-phenol with 2- (2'-methoxy) -phenylamino-5-oxynaphthalene -7- sulfonic acid is produced, treated with chromium releasing agents.

   The new dye is a dark powder, dissolves in water with blue, in dilute soda solution with greenish blue, in concentrated sulfuric acid with violet color and colors wool from mineral acid bath in greenish blue and rayon (viscose) from soda-alkaline bath in greenish blue Tones with good fastness properties.



       Example: 5.1 parts by weight of the dye from diazotized 5-nitro-2-aminophenol and 2- (2 'methoxy) -phenylamino-5-oxynaphthalene-7-sulfonic acid are dissolved in 400 parts of water and treated with a 1, 52 parts of CrYOs corresponding amount of fluorochrome with the addition of 1.36 parts of sodium acetate heated to boiling under reflux for a long time.

   The dye is then separated out by adding sodium chloride, filtered, washed and dried at moderate temperature.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines chrom haltigen Farbstoffes, dadurch gekennzeichnet, dass man den o-Oxyazofarbstoff, welcher durch Vereinigen von dianotiertem 5-Nitro-2-amino- 1-phenol mit 2-(2'-Methoxy)-phenylamino-5- oxynaphtalin-7-sulfosäure entsteht, mit Chrom abgebenden Mitteln behandelt. PATENT CLAIM: Process for the production of a chromium-containing dye, characterized in that the o-oxyazo dye, which is obtained by combining dianotated 5-nitro-2-amino-1-phenol with 2- (2'-methoxy) -phenylamino-5- oxynaphthalene-7-sulfonic acid is produced when treated with chromium-releasing agents. Der neue Farb stoff stellt ein dunkles Pulver dar, löst sich in Wasser mit blauer, in verdünnter Sodalösung mit gr ünstichig blauer, in konzentrierter Schwe felsäure mit violetter Farbe auf und färbt Wolle aus mineralsaurem Bade in grünstichig blauen und Kunstseide (Viscose) aus soda- alkalischem Bade in grünblauen Tönen mit guten Echtheitseigenschaften. The new dye is a dark powder, dissolves in water with blue, in dilute soda solution with greenish blue, in concentrated sulfuric acid with violet color and colors wool from mineral acid bath in greenish blue and artificial silk (viscose) from soda alkaline bath in green-blue tones with good fastness properties.
CH131253D 1927-04-23 1927-04-23 Process for the production of a new azo dye. CH131253A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH131253T 1927-04-23
CH128006T 1927-08-19

Publications (1)

Publication Number Publication Date
CH131253A true CH131253A (en) 1929-01-31

Family

ID=25711014

Family Applications (1)

Application Number Title Priority Date Filing Date
CH131253D CH131253A (en) 1927-04-23 1927-04-23 Process for the production of a new azo dye.

Country Status (1)

Country Link
CH (1) CH131253A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2822360A (en) * 1954-03-05 1958-02-04 Geigy Ag J R Metallisable azo dyestuffs and complex heavy metal compounds thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2822360A (en) * 1954-03-05 1958-02-04 Geigy Ag J R Metallisable azo dyestuffs and complex heavy metal compounds thereof

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