CH264194A - Process for the production of an azo waste. - Google Patents

Process for the production of an azo waste.

Info

Publication number
CH264194A
CH264194A CH264194DA CH264194A CH 264194 A CH264194 A CH 264194A CH 264194D A CH264194D A CH 264194DA CH 264194 A CH264194 A CH 264194A
Authority
CH
Switzerland
Prior art keywords
dye
production
purple
azo
blue
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellschaft Ciba
Original Assignee
Ciba Geigy
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 Ciba Geigy filed Critical Ciba Geigy
Publication of CH264194A publication Critical patent/CH264194A/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)

Description

  

  Verfahren zur Herstellung eines     Azofarbstoffes.       Es wurde gefunden, dass ein wertvoller       Azofarbstoff    hergestellt werden kann, wenn  man     diazotierte        4-Chlor-2-amino-l-phenol-6-          sulfonsäure        finit        2-Oxv-6-niethoxynaphthalin     kuppelt.  



  Der neue Farbstoff stellt ein violett  schwarzes Pulver dar, das sieh in Wasser mit  rotstickig blauer, in verdünnter     Natrium-          hydroxydlösung    mit violetter und in     konz.     Schwefelsäure mit     violettroter    Farbe löst. Der  Farbstoff färbt. Wolle aus saurem Bade in       bordeauxroten    Tönen, die durch     --\Tachclironiie-          ren    in ein sehr gut licht- und     walkeehtes    Blau  grau     übergeführt        werden.    Der Farbstoff eig  net sich auch zum Färben nach denn Einbad  ehromierverfahren.  



  Die Kupplung erfolgt,     zweckmässig    in Al  kali, z. B.     Alkahhydroxyd    und gegebenenfalls       Alkalicarbonat,    enthaltendem Medium.  



       Beispiel:     22,4 Teile     4-Chlor-2-amino-l-phenol-6-sul-          fonsäure    werden in bekannter Weise diazo-         fiert    und in alkalischer Lösung mit 18 Teilen       2-Oxv-6-nietlioxynaphthalin    gekuppelt. Der  nach erfolgter Kupplung     abgeschiedene    Farb  stoff wird     abfiltriert    und getrocknet.



  Process for the preparation of an azo dye. It has been found that a valuable azo dye can be produced by coupling diazotized 4-chloro-2-amino-1-phenol-6-sulfonic acid finitely 2-oxv-6-niethoxynaphthalene.



  The new dye is a violet-black powder that looks blue in water with red-sticky blue, in dilute sodium hydroxide solution with violet and in conc. Dissolves sulfuric acid with a purple-red color. The dye stains. Wool from an acid bath in burgundy-red tones, which are transformed into a very light and whiskey blue-gray by tachclironing. The dye is also suitable for dyeing using the single bath Ehromier method.



  The coupling takes place, conveniently in Al kali, z. B. alkali hydroxide and optionally alkali metal containing medium.



       Example: 22.4 parts of 4-chloro-2-amino-1-phenol-6-sulphonic acid are diazo- fated in a known manner and coupled with 18 parts of 2-oxy-6-nietlioxynaphthalene in an alkaline solution. The dye deposited after the coupling has taken place is filtered off and dried.

Claims (1)

PATENTANSPRUCH \erfahren zur Herstellung eines Azofarb- stoffes, dadurch gekennzeichnet, dass man di anotierte 4-Clilor-2-amino-l-plienol-6-sulfoii- säure finit 2-O1v-6-inetlioxvnaplithalin kup pelt. PATENT CLAIM \ experienced for the production of an azo dye, characterized in that the anotated 4-chloro-2-amino-1-plienol-6-sulfoiic acid finitely 2-O1v-6-inetlioxvnaplithalin coupled. Der neue Farbstoff stellt ein violett- sehwarzes Pulver dar, das sich in Wasser mit rotstichig blauer, iii verdünnter Natrium- hYdroxydlösung mit violetter und in konz. Schwefelsäure finit violettroter Farbe löst. Der Farbstoff färbt Wolle aus saurein Bade in bordeauxroten Tönen, die durch Nachchro- mieren in ein sehn gut licht- und walkechtes Blaugrau übergeführt werden. The new dye is a purple-black powder that dissolves in water with a reddish blue, iii dilute sodium hydroxide solution with purple and in conc. Sulfuric acid dissolves finite violet-red color. The dye dyes wool from acidic baths in burgundy-red tones, which are converted into a blue-gray that is very lightfast and watertight by subsequent chroming. Der Farbstoff eignet sieh auch zum Färben nach dem Ein badchromier verf ahren. The dye is also suitable for dyeing after the bath chrome-plating process.
CH264194D 1943-11-04 1943-11-04 Process for the production of an azo waste. CH264194A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH264194T 1943-11-04
CH257111T 1943-11-04

Publications (1)

Publication Number Publication Date
CH264194A true CH264194A (en) 1949-09-30

Family

ID=25730052

Family Applications (1)

Application Number Title Priority Date Filing Date
CH264194D CH264194A (en) 1943-11-04 1943-11-04 Process for the production of an azo waste.

Country Status (1)

Country Link
CH (1) CH264194A (en)

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