CH98024A - Process for the preparation of an o-oxyazo dye. - Google Patents

Process for the preparation of an o-oxyazo dye.

Info

Publication number
CH98024A
CH98024A CH98024DA CH98024A CH 98024 A CH98024 A CH 98024A CH 98024D A CH98024D A CH 98024DA CH 98024 A CH98024 A CH 98024A
Authority
CH
Switzerland
Prior art keywords
dye
oxyazo
preparation
oxybenzene
diazo
Prior art date
Application number
Other languages
German (de)
Inventor
Anilin-Fabrikation Actien Fuer
Original Assignee
Anilin Fabrikation Ag
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 Anilin Fabrikation Ag filed Critical Anilin Fabrikation Ag
Publication of CH98024A publication Critical patent/CH98024A/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
    • C09B29/00—Monoazo dyes prepared by diazotising and coupling
    • C09B29/10—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group
    • C09B29/103—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group of the naphthalene series
    • 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 Darstellung eines     o-Oxyazofarbstoffes.       Es wurde     gefunden"dass    durch Kuppeln  von 3.4.     5-Trichlor-2-diazo-l-oxybenzol    mit       1-Ogynaphtalin-5-sulfosäure    ein Farbstoff er  halten wird, der Wolle aus saurem Bade rot  braun anfärbt und dessen Chromlack rötlich.  blau ist.  



       Beispiel:     21,3 Teile 3 . 4.     5-Trichlor-2-.amino-l-oxy-          benzol    werden in der üblichen Weise in Ge  genwart von Salzsäure mit     Natriumnitrit          diazotiert    und die     Diazoverbindung    mit  25 Teilen     1-Oxynaphtalin-5-sulfosaurem    Na  trium in     sodaalkalischer    Lösung gekuppelt.  Der Farbstoff wird in üblicher Weise     ausge-          salzen    und aufgearbeitet.



  Process for the preparation of an o-oxyazo dye. It has been found that by coupling 3/4 5-trichloro-2-diazo-1-oxybenzene with 1-ogynaphthalene-5-sulfonic acid, a dye is obtained which dyes wool from acid baths red-brown and the chrome varnish is reddish blue .



       Example: 21.3 parts 3. 4. 5-Trichloro-2-amino-1-oxybenzene are diazotized in the usual manner in the presence of hydrochloric acid with sodium nitrite and the diazo compound is coupled with 25 parts of 1-oxynaphthalene-5-sulfonic acid sodium in an alkaline soda solution. The dye is salted out and worked up in the usual way.

Claims (1)

PATENTANSPRUUH: Verfahren zur Darstellung eines o-Oxyazo- farbstoffes, der Wolle aus saurem Bade rot braun färbt und der mit Hilfe von Chrom beizen rötlich blaue Nuancen von guter Walk-, Licht- und Reibechtheit liefert, da durch gekennzeichnet, dass man 3.4.5-Tri- chlor-2-diazo-l-oxybenzol mitl-Oxynaphtalin- 5-sulfosäure kuppelt. PATENT APPLICATION: Process for the preparation of an o-oxyazo dye which dyes wool from acid baths red-brown and which, with the help of chromium pickling, delivers reddish blue nuances of good fullness, light and rubbing fastness, characterized by the fact that 3.4.5 -Tri-chloro-2-diazo-1-oxybenzene with 1-oxynaphthalene-5-sulfonic acid couples.
CH98024D 1920-07-08 1921-09-17 Process for the preparation of an o-oxyazo dye. CH98024A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH89057T 1920-07-08
CH98024T 1921-09-17

Publications (1)

Publication Number Publication Date
CH98024A true CH98024A (en) 1923-02-16

Family

ID=25703936

Family Applications (1)

Application Number Title Priority Date Filing Date
CH98024D CH98024A (en) 1920-07-08 1921-09-17 Process for the preparation of an o-oxyazo dye.

Country Status (1)

Country Link
CH (1) CH98024A (en)

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