[go: up one dir, main page]

CH218078A - Process for the production of a new azo dye. - Google Patents

Process for the production of a new azo dye.

Info

Publication number
CH218078A
CH218078A CH218078DA CH218078A CH 218078 A CH218078 A CH 218078A CH 218078D A CH218078D A CH 218078DA CH 218078 A CH218078 A CH 218078A
Authority
CH
Switzerland
Prior art keywords
azo dye
amino
production
new
new azo
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 CH218078A publication Critical patent/CH218078A/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)
  • Credit Cards Or The Like (AREA)
  • Paper (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)

Description

  

  Verfahren zur Herstellung eines neuen     Azofarbstoffes.       Es wurde gefunden, dass man einen neuen       Azofarbstoff    erhält, wenn man die     diazo-          tierte        1-Oxy-2-amino-4-chlor-6-benzolsulfon-          säure    in alkalischem Medium mit der     3-Car-          bonsäure-4-oxybenzolsulfaminoverbindung    des       1-Amino-7-oxynaphthalins    vereinigt.  



  Der neue Farbstoff stellt ein dunkles Pul  ver dar, das sich in Wasser mit blauer Farbe  löst und das Wolle aus saurem Bade in Bor  deaux-Tönen färbt,. die durch Behandeln mit       ehromabg    ebenden     Mitteln        grünrngrau-e    Töne. von  vorzüglichen     Echtheitseigernseha.ften    geben.  <I>Beispiel:</I>  223 Teile     1-Oxy-2-amino-4-chlor-6-benzol-          sulfonsä.ure    werden in 1500 Volumenteilen  Wasser und 100 Volumenteilen 40%iger Na  triumhydroxydlösung gelöst und mit 350  Volumenteilen Salzsäure (D - 1,15) ausge  fällt.

   Diese feine Suspension wird mit einer  wässerigen Lösung von 70 Teilen Natrium  nitrit innert etwa     1/2    Stunde versetzt und ge  rührt, bis eine klare Lösung der     Diazover-          bindung    entsteht.  



  Diese     Diazolösung    gibt man in eine wäs  serige Lösung des     Natriumsalzes    von 365 Tei-         len    der     3-Carbonsäure-4-oxybenzolsulfamino-          verbindung    des     1-Amino-7-oxynaphthalins,     die noch 215 Teile     Natriumcarbonat    enthält.  Man rührt, bis die Kupplung beendet ist, fällt  den Farbstoff durch Zugabe eines Salzes, wie  zum Beispiel     Natriumchlorid,    aus. Er wird       abfiltriert    und mit einer gesättigten Natrium  chloridlösung gewaschen und hernach ge  trocknet.



  Process for the production of a new azo dye. It has been found that a new azo dye is obtained if the diazotized 1-oxy-2-amino-4-chloro-6-benzenesulfonic acid is mixed with the 3-carboxylic acid-4-oxybenzenesulfamino compound of 1 in an alkaline medium -Amino-7-oxynaphthalene combined.



  The new dye is a dark powder that dissolves in water with a blue color and dyes the wool from acid baths in Boreaux shades. the green-gray tones obtained by treating with honey-emitting agents. of excellent authenticity certificates. <I> Example: </I> 223 parts of 1-oxy-2-amino-4-chloro-6-benzenesulfonic acid are dissolved in 1500 parts by volume of water and 100 parts by volume of 40% sodium hydroxide solution and mixed with 350 parts by volume of hydrochloric acid ( D - 1.15) failed.

   This fine suspension is mixed with an aqueous solution of 70 parts of sodium nitrite within about 1/2 hour and stirred until a clear solution of the diazo compound is formed.



  This diazo solution is added to an aqueous solution of the sodium salt of 365 parts of the 3-carboxylic acid-4-oxybenzenesulfamino compound of 1-amino-7-oxynaphthalene which still contains 215 parts of sodium carbonate. The mixture is stirred until the coupling has ended, and the dye is precipitated by adding a salt, such as sodium chloride, for example. It is filtered off and washed with a saturated sodium chloride solution and then dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Azofarbstoffes, dadurch gekennzeichnet, dass man die diazotierte 1-Oxy-2-amino-4-ehlor-6- benzolsulfonsäure in alkalischem Medium mit der 3-Carbonsäure-4-oxybenzolsulfamino- verbindung des 1-Amino- 7 -oxynaphthalins vereinigt. PATENT CLAIM: Process for the preparation of a new azo dye, characterized in that the diazotized 1-oxy-2-amino-4-chloro-6-benzenesulfonic acid is mixed in an alkaline medium with the 3-carboxylic acid-4-oxybenzenesulfamino compound of the 1-amino 7 -oxynaphthalene combined. Der neue Farbstoff stellt ein dunkles Pulver dar, das sich in Wasser mit blauer Farbe löst und das Wolle aus saurem Bade in Bordeaux-Tönen färbt, die durch Behan deln mit chromabgebenden Mitteln grüngraue Töne von vorzüglichen Echtheitseigenschaf ten geben. The new dye is a dark powder that dissolves in water with a blue color and dyes the wool from an acid bath in Bordeaux tones, which, when treated with chromium-releasing agents, give green-gray tones with excellent fastness properties.
CH218078D 1940-11-21 1940-11-21 Process for the production of a new azo dye. CH218078A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH218078T 1940-11-21

Publications (1)

Publication Number Publication Date
CH218078A true CH218078A (en) 1941-11-30

Family

ID=4450434

Family Applications (1)

Application Number Title Priority Date Filing Date
CH218078D CH218078A (en) 1940-11-21 1940-11-21 Process for the production of a new azo dye.

Country Status (1)

Country Link
CH (1) CH218078A (en)

Similar Documents

Publication Publication Date Title
CH218078A (en) Process for the production of a new azo dye.
CH232825A (en) Process for the preparation of an azo dye.
CH199370A (en) Process for the preparation of an azo dye.
CH202745A (en) Process for the preparation of an azo dye.
CH200370A (en) Process for the preparation of a chromable o-oxydisazo dye.
CH200063A (en) Process for the preparation of an azo dye.
CH202749A (en) Process for the preparation of an azo dye.
CH202748A (en) Process for the preparation of an azo dye.
CH135390A (en) Process for the production of a new azo dye.
CH199369A (en) Process for the preparation of an azo dye.
CH261848A (en) Process for the preparation of an o, o&#39;-dioxyazo dye.
CH202747A (en) Process for the preparation of an azo dye.
CH199368A (en) Process for the preparation of an azo dye.
CH261066A (en) Process for the preparation of a polyazo dye.
CH227978A (en) Process for the preparation of an azo dye.
CH192049A (en) Process for the production of a new azo dye.
CH202743A (en) Process for the preparation of an azo dye.
CH202746A (en) Process for the preparation of an azo dye.
CH282263A (en) Process for the preparation of a monoazo dye.
CH199371A (en) Process for the preparation of an azo dye.
CH135391A (en) Process for the production of a new azo dye.
CH177838A (en) Process for the production of a new azo dye.
CH147697A (en) Process for the production of a new metal-containing dye.
CH229356A (en) Process for the preparation of a trisazo dye.
CH198709A (en) Process for the preparation of an azo dye.