CH217970A - Process for the preparation of an o-oxyazo dye. - Google Patents

Process for the preparation of an o-oxyazo dye.

Info

Publication number
CH217970A
CH217970A CH217970DA CH217970A CH 217970 A CH217970 A CH 217970A CH 217970D A CH217970D A CH 217970DA CH 217970 A CH217970 A CH 217970A
Authority
CH
Switzerland
Prior art keywords
dye
oxyazo
preparation
parts
oxynaphthalene
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 CH217970A publication Critical patent/CH217970A/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

  

  Verfahren zur Herstellung eines     o-Ozyazofarbstoffes.       Nach dem im Hauptpatent beschriebenen  Verfahren erhält man einen Wolle beim Fär  ben nach dem     Chromierungsverfahren    in  marineblauen Tönen färbenden     Azofarbstoff,     wenn man     3,4,6-Trichlor-2-amino    -1-     oxy-          benzol        diazotiert    und mit     1-Methyl-4-chlor-5-          oxynaphthalin-ll-sulfonsäure    kuppelt.  



  Wie nun weiter gefunden wurde, erhält  man einen ähnlichen Farbstoff, wenn man       4,6-Dich@lor-2-amino-l-oxybenzol        diazotiert     und mit     1-@Iethyl-4-chlor-5-oxynaphthalin-          ll-sulfonsäure    kuppelt.  



  <I>Beispiel:</I>  21,45 Teile     4,6-Dichlor-2-amino-l-oxy-          benzolchlorhydrat    werden mit 250 Teilen  Wasser und 5 Teilen Salzsäure von 12'     B6          angeschlämmt    und mit 6,9 Teilen     Natrium-          nitrit    bei 5-10       diazotiert.    Die     Dia.zoverbin-          dung    wird dann zu der mit Eis versetzten  Lösung von 28,5 Teilen     1-Methyl-4-chlor-5-          oxynaphthalin-l'-sulfonsäure    und 8,

  2 Teilen         Natriumcarbonat    in 250 Teilen Wasser     gegeK          ben.    Nach     beendeter        Kupplung    werden  8 Teile     Natriumcarbonat'    hinzugefügt; der  Farbstoff wird dann in der üblichen Weise  aufgearbeitet. Er bildet nach dem Trocknen  ein dunkles Pulver, das sich in Wasser gut  löst. Die     chromierte    Färbung auf Wolle ist  klar blau und hat sehr gute Echtheitseigen  schaften.



  Process for the preparation of an o-ozyazo dye. According to the process described in the main patent, an azo dye that dyes wool in dyeing ben by the chromating process in navy blue shades is obtained if 3,4,6-trichloro-2-amino -1-oxy-benzene is diazotized and 1-methyl-4- chloro-5-oxynaphthalene-II-sulfonic acid couples.



  As has now also been found, a similar dye is obtained if 4,6-dichloro-2-amino-1-oxybenzene is diazotized and coupled with 1- @ ethyl-4-chloro-5-oxynaphthalene-ll-sulfonic acid.



  <I> Example: </I> 21.45 parts of 4,6-dichloro-2-amino-l-oxybenzene chlorohydrate are slurried with 250 parts of water and 5 parts of hydrochloric acid of 12 'B6 and mixed with 6.9 parts of sodium nitrite diazotized at 5-10. The Dia.zoverbin- dung is then mixed with ice solution of 28.5 parts of 1-methyl-4-chloro-5-oxynaphthalene-l'-sulfonic acid and 8,

  2 parts of sodium carbonate are added to 250 parts of water. When the coupling is complete, 8 parts of sodium carbonate are added; the dye is then worked up in the usual way. After drying, it forms a dark powder that dissolves well in water. The chromed dye on wool is clear blue and has very good fastness properties.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines o-Oxy- azofarbstoffes, dadurch gekennzeichnet, daB man 4,6-Diehlor-2-amino-l-oxybenzol diazo- tiert und mit 1-Methyl-4-chlor-5-oxynaph- thalin-l'-sulfonsäure kuppelt. Der Farbstoff bildet getrocknet ein dunkles Pulver, das sich in Wasser gut löst. Er färbt Wolle, nach dem Chromierungsver- fahren gefärbt, in echten, klarblauen Tönen. Claim: Process for the production of an o-oxyazo dye, characterized in that 4,6-diehlor-2-amino-1-oxybenzene is diazoated with 1-methyl-4-chloro-5-oxynaphthalene-1 '-sulfonic acid couples. When dried, the dye forms a dark powder that dissolves well in water. It dyes wool, dyed using the chroming process, in real, clear blue shades.
CH217970D 1938-07-07 1939-05-03 Process for the preparation of an o-oxyazo dye. CH217970A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE217970X 1938-07-07
CH215402T 1939-05-03

Publications (1)

Publication Number Publication Date
CH217970A true CH217970A (en) 1941-11-15

Family

ID=25725716

Family Applications (1)

Application Number Title Priority Date Filing Date
CH217970D CH217970A (en) 1938-07-07 1939-05-03 Process for the preparation of an o-oxyazo dye.

Country Status (1)

Country Link
CH (1) CH217970A (en)

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