CH195851A - Process for the preparation of an oxyazo dye. - Google Patents

Process for the preparation of an oxyazo dye.

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Publication number
CH195851A
CH195851A CH195851DA CH195851A CH 195851 A CH195851 A CH 195851A CH 195851D A CH195851D A CH 195851DA CH 195851 A CH195851 A CH 195851A
Authority
CH
Switzerland
Prior art keywords
dye
oxyazo
preparation
diazotized
aminophenol
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellsc Farbenindustrie
Original Assignee
Ig Farbenindustrie 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 Ig Farbenindustrie Ag filed Critical Ig Farbenindustrie Ag
Publication of CH195851A publication Critical patent/CH195851A/en

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  • Coloring (AREA)

Description

  

  Verfahren zur Herstellung eines     Ogyazofarbstoffes.       Gegenstand des vorliegenden Patentes ist  ein Verfahren zur Herstellung eines     Oxyazo-          farbstoffes.    Das Verfahren ist dadurch ge  kennzeichnet, dass man     diazotiertes        5-Nitro-          2-aminophenol    mit     2-Oxyäthylamino-7-oxy-          naplithalin-6-sulfonsäure    in alkalischem Mittel  vereinigt. Der Farbstoff kann mit metall  abgebenden Mitteln nachbehandelt werden.  Der neue Farbstoff färbt Wolle     nachchromiert     marineblau.

      <I>Beispiel:</I>    15,4 Gewichtsteile     5-Nitro-2-aminophenol     werden mit 6,9 Gewichtsteilen     Natriumnitrit     und Salzsäure     diazotiert    und mit 28,3 Ge  wichtsteilen     2-Oxyäthylamino-7-oxynaphtha-          lin-6-sulfonsäure        sodaalkalisch    gekuppelt. Der    Farbstoff färbt Wolle     nachchromiert    marine  blau.  



  Die nach bekannten Methoden hergestellte  komplexe     Chromverbindung    färbt Wolle in  blauen Tönen.



  Process for the preparation of an ogyazo dye. The present patent relates to a process for the production of an oxyazo dye. The process is characterized in that diazotized 5-nitro-2-aminophenol is combined with 2-oxyethylamino-7-oxy-naplithalin-6-sulfonic acid in an alkaline medium. The dye can be treated with metal-releasing agents. The new dye dyes wool after chrome-plated navy blue.

      <I> Example: </I> 15.4 parts by weight of 5-nitro-2-aminophenol are diazotized with 6.9 parts by weight of sodium nitrite and hydrochloric acid and with 28.3 parts by weight of 2-oxyethylamino-7-oxynaphthalin-6-sulfonic acid soda-alkaline coupled. The dye dyes wool after chrome-plated marine blue.



  The complex chromium compound produced by known methods dyes wool in blue tones.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Oxyazo- farbstoffes, dadurch gekennzeichnet, dass man diazotiertes 5-Nitro-2-aminophenol mit 2-Oxy- äthylamiifo-7-ogynaphthalin-6-sulfonsäure in alkalischem Mittel vereinigt. Der Farbstoff kann mit metallabgebenden Mitteln nachbe handelt werden. Er färbt Wolle nachchro- miert marineblau. PATENT CLAIM: A process for the production of an oxyazo dye, characterized in that diazotized 5-nitro-2-aminophenol is combined with 2-oxyethylamifo-7-ogynaphthalene-6-sulfonic acid in an alkaline medium. The dye can be treated with metal donors. He dyes wool after chroming it in navy blue.
CH195851D 1935-05-23 1936-04-28 Process for the preparation of an oxyazo dye. CH195851A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE195851X 1935-05-23
CH191850T 1936-04-28

Publications (1)

Publication Number Publication Date
CH195851A true CH195851A (en) 1938-02-15

Family

ID=25722188

Family Applications (1)

Application Number Title Priority Date Filing Date
CH195851D CH195851A (en) 1935-05-23 1936-04-28 Process for the preparation of an oxyazo dye.

Country Status (1)

Country Link
CH (1) CH195851A (en)

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