CH162740A - Process for the production of a new substantive azo dye. - Google Patents

Process for the production of a new substantive azo dye.

Info

Publication number
CH162740A
CH162740A CH162740DA CH162740A CH 162740 A CH162740 A CH 162740A CH 162740D A CH162740D A CH 162740DA CH 162740 A CH162740 A CH 162740A
Authority
CH
Switzerland
Prior art keywords
azo dye
dye
new
production
blue
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 CH162740A publication Critical patent/CH162740A/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
    • C09B31/00—Disazo and polyazo dyes of the type A->B->C, A->B->C->D, or the like, prepared by diazotising and coupling
    • C09B31/02—Disazo dyes
    • C09B31/08—Disazo dyes from a coupling component "C" containing directive hydroxyl and amino groups
    • 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
    • C09B45/24—Disazo or polyazo compounds
    • C09B45/28—Disazo or polyazo compounds containing copper

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Paper (AREA)
  • Coloring (AREA)

Description

  

      Verfahren    zur Herstellung eines neuen direktziehenden     Azofarbstoffes.       Es wurde gefunden, dass man einen neuen  direktziehenden     Azofarbstoff    erhält, wenn  man den     Azofarbstoff,    der selbst durch Ver  einigen von     1-Diazo-2-oxy-4-nitro-5-berrzol-          sulfonsäure    mit     1-Amino-2.        5-dimethoxybenzol     erhalten wird,     diazotiert    und mit     2-Benzoyl-          amino-5-oxynaphtalin-7-sulfonsäure    vereinigt.  



  Der neue Farbstoff bildet ein schwarz  blaues Pulver, das Baumwolle in klaren  blauen Tönen anfärbt, die durch Nachbehan  deln mit kupferabgebenden Mitteln sich nach  Grünblau verschieben und sehr gute Licht  beständigkeit zeigen.  



  <I>Beispiel:</I>  234 Teile     1-Amino-2-oxy-4-nitro-5-benzol-          sulfonsäure    werden in salzsaurer Lösung mit  69 Teilen     Natriumnitrit        diazotiert.    Diese       Diazolösung    wird mit 188 Teilen des     Chlor-          hydrates    von     1-Amino-2.5-dimethoxybenzol     versetzt und durch langsames Zusetzen von       Natriumacetat    unter Rühren die Kupplung  beendet. Der entstandene Farbstoff wird ab  filtriert und mit     Natriumchlorid    gewaschen.

    Man löst hierauf den Farbstoff in heissem  Wasser und der notwendigen Menge Natrium  karbonat, versetzt mit 69 Teilen Natrium-         nitrit    und giesst die Lösung in eine eiskalte,  wässerige Lösung, die 270 Teile 30     0%ige     Salzsäure enthält. Die     Diazoverbindung    des  Farbstoffes fällt aus. Sie wird     abfiltriert    und  in eine eiskalte,     natriumkarbonathaltige    Lö  sung von 343 Teilen     2-Benzoylamino-6-ogy-          naphtalin-7-sulfonsäure    eingetragen.

   Nachdem  der     Farbstoff    gebildet ist, wird er     abfiltriert     und mit     Natriumehloridlösung    gewaschen und  dann getrocknet.



      Process for the production of a new substantive azo dye. It has been found that a new substantive azo dye is obtained if the azo dye, which is itself produced by ver some of 1-diazo-2-oxy-4-nitro-5-berrzenesulfonic acid with 1-amino-2. 5-dimethoxybenzene is obtained, diazotized and combined with 2-benzoylamino-5-oxynaphthalene-7-sulfonic acid.



  The new dye forms a black-blue powder that dyes cotton in clear blue tones, which after treatment with copper-releasing agents shift to green-blue and show very good light resistance.



  <I> Example: </I> 234 parts of 1-amino-2-oxy-4-nitro-5-benzenesulfonic acid are diazotized in hydrochloric acid solution with 69 parts of sodium nitrite. 188 parts of the chlorohydrate of 1-amino-2,5-dimethoxybenzene are added to this diazo solution and the coupling is terminated by slowly adding sodium acetate with stirring. The resulting dye is filtered off and washed with sodium chloride.

    The dye is then dissolved in hot water and the necessary amount of sodium carbonate, 69 parts of sodium nitrite are added and the solution is poured into an ice-cold, aqueous solution containing 270 parts of 30% strength hydrochloric acid. The diazo compound of the dye precipitates. It is filtered off and introduced into an ice-cold, sodium carbonate-containing solution of 343 parts of 2-benzoylamino-6-ogynaphthalene-7-sulfonic acid.

   After the dye is formed, it is filtered off and washed with sodium chloride solution and then dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen direktziehenden Azofarbstoffes, dadurch ge kennzeichnet, dass man den Azofarbstoff aus 1-Diazo-2-oxy-4-nitro-5-benzolsulfonsäure und 1-Amino-2. 5-dimethogybenzol diazotiert und mit 2-Benzoylamino-5-oxyDaphtalin-7-sulfon- säure vereinigt. Der neue Farbstoff bildet ein schwarz . blaues Pulver, das Baumwolle in klaren, blauen Tönen anfärbt, die durch Nachbehan deln mit kupferabgebenden Mitteln sich nach Grünblau verschieben und sehr gute Licht beständigkeit zeigen. Claim: Process for the preparation of a new substantive azo dye, characterized in that the azo dye from 1-diazo-2-oxy-4-nitro-5-benzenesulfonic acid and 1-amino-2. 5-dimethogybenzene diazotized and combined with 2-benzoylamino-5-oxyDaphthalene-7-sulfonic acid. The new dye forms a black. blue powder that dyes cotton in clear, blue tones, which after treatment with copper-releasing agents shift to green-blue and show very good light resistance.
CH162740D 1932-09-07 1932-09-07 Process for the production of a new substantive azo dye. CH162740A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH162740T 1932-09-07

Publications (1)

Publication Number Publication Date
CH162740A true CH162740A (en) 1933-07-15

Family

ID=4415888

Family Applications (1)

Application Number Title Priority Date Filing Date
CH162740D CH162740A (en) 1932-09-07 1932-09-07 Process for the production of a new substantive azo dye.

Country Status (1)

Country Link
CH (1) CH162740A (en)

Similar Documents

Publication Publication Date Title
CH162740A (en) Process for the production of a new substantive azo dye.
CH192049A (en) Process for the production of a new azo dye.
CH229358A (en) Process for the preparation of a trisazo dye.
CH229356A (en) Process for the preparation of a trisazo dye.
CH202749A (en) Process for the preparation of an azo dye.
CH174517A (en) Process for the production of a new azo dye.
CH202743A (en) Process for the preparation of an azo dye.
CH202747A (en) Process for the preparation of an azo dye.
CH171233A (en) Process for the production of a new azo dye.
CH204443A (en) Process for the production of a new azo dye.
CH249783A (en) Process for the preparation of an azo dye.
CH235458A (en) Process for the preparation of a water-soluble monoazo dye.
CH235456A (en) Process for the preparation of a water-soluble monoazo dye.
CH166072A (en) Process for the production of a new azo dye.
CH229360A (en) Process for the preparation of a trisazo dye.
CH172573A (en) Process for the production of a new azo dye.
CH190423A (en) Process for the production of a new azo dye.
CH192042A (en) Process for the production of a new azo dye.
CH203618A (en) Process for the preparation of an azo dye.
CH199371A (en) Process for the preparation of an azo dye.
CH218078A (en) Process for the production of a new azo dye.
CH202745A (en) Process for the preparation of an azo dye.
CH200672A (en) Process for the production of a new azo dye.
CH165412A (en) Process for the production of a new azo dye.
CH222799A (en) Process for the production of a new azo dye.