CH226836A - Process for the preparation of a green trisazo dye. - Google Patents

Process for the preparation of a green trisazo dye.

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Publication number
CH226836A
CH226836A CH226836DA CH226836A CH 226836 A CH226836 A CH 226836A CH 226836D A CH226836D A CH 226836DA CH 226836 A CH226836 A CH 226836A
Authority
CH
Switzerland
Prior art keywords
parts
green
dye
amino
acid
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 CH226836A publication Critical patent/CH226836A/en

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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
    • C09B35/00—Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
    • C09B35/36—Trisazo dyes of the type
    • C09B35/374—D contains two aryl nuclei linked by at least one of the groups —CON<, —SO2N<, —SO2—, or —SO2—O—

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

Description

  

      Zusatzpatent    zum     Hauptpatent    Nr. 223071.         Yerfaliren    zur Herstellung eines grünen     Trisazofarbstoffe;       Gegenstand vorliegenden Patentes ist ein  Verfahren zur Herstellung eines grünen     Tris-          azofarbstoffes.    Das Verfahren ist dadurch  gekennzeichnet, dass man     tetrazotiertes     1-     Amino    -4 -     (4'-        aminobenzoylamino)        -benzol     zunächst mit 1     Mol        Salicylsäure,

      dann mit  1     Mol        1-Amino-2-carboxymethoxynaphthalin-          6-sulfonsäure    vereinigt, den so erhaltenen       Aminodisazofarbstoff        weiterdiazotiert    und  mit     1-Benzoylamino-8-oxynaphthalin-3,6-di-          sulfonsäure    kuppelt.  



  Der neue Farbstoff stellt ein metallisch  glänzendes wasserlösliches Pulver dar und  färbt Baumwolle und regenerierte Zellulose  in grünen Tönen.  



  <I>Beispiel:</I>  113,5 Teile     1-Amino-4-(4'-aminobenzoyl-          amino)-benzol    werden in 4800 Teilen Eis  wasser unter Zusatz von 310 Teilen Salz  säure (d = 1,18) gelöst und durch     Zutropfen     von 69 Teilen     Natriumnitrit    in 350 -Teilen    Wasser     tetrazotiert.    Zu der klaren     Tetrazo-          lösung,    die mit 275 Teilen     Natriumacetat     abgestumpft worden ist,

   lässt man eine Lö  sung von 80 Teilen     l.-oxybenzol-2-carbon-        i     saurem Natrium in 500 Teilen Wasser zu  laufen und setzt zur Beendigung der halb  seitigen Kupplung 480 Teile 20 %     ige    Natron  lauge langsam zu. Man fügt nun bei schwach       bicarbonat-alkalischer    Reaktion die Lösung  von 175 Teilen des     Natriumsalzes    von       1-Amino    - 2 -     carboxymethoxynaphthalin-6-sul-          fonsäure    zu und salzt den erhaltenen Farb  stoff am folgenden Tage aus.

   Der isolierte  Farbstoff wird erneut gelöst und mit 35 Tei  len     Natriumnitrit    und 600 Teilen Salzsäure  bei 20      diazotiert.    Die braune     Diazoverbin-          dung    wird als Paste in eine Lösung von 235  Teilen     1-Benzoylamino-8-hydroxynaphthaIin-          3,6-disulfonsäure    in wässerigem     Pyrdin    bei  Gegenwart von 80 Teilen     Natriumcarbonat     eingetragen.

   Der wie üblich isolierte Farb  stoff stellt ein dunkles, metallisch glänzendes      wasserlösliches Pulver dar,     das    klare,     metal-          lisierbare    grüne Färbungen liefert.



      Additional patent to main patent no. 223071. Yerfaliren for the production of a green trisazo dye; The present patent relates to a process for the production of a green tris azo dye. The process is characterized in that tetrazotized 1- amino -4 - (4'-aminobenzoylamino) benzene is first treated with 1 mol of salicylic acid,

      then combined with 1 mole of 1-amino-2-carboxymethoxynaphthalene-6-sulfonic acid, the aminodisazo dye thus obtained is further diazotized and coupled with 1-benzoylamino-8-oxynaphthalene-3,6-disulfonic acid.



  The new dye is a metallic, shiny, water-soluble powder and dyes cotton and regenerated cellulose in green tones.



  <I> Example: </I> 113.5 parts of 1-amino-4- (4'-aminobenzoyl-amino) -benzene are dissolved in 4800 parts of ice water with the addition of 310 parts of hydrochloric acid (d = 1.18) and tetrazotized by adding 69 parts of sodium nitrite in 350 parts of water. To the clear tetrazo solution, which has been blunted with 275 parts of sodium acetate,

   a solution of 80 parts of 1.-oxybenzene-2-carbonic acid sodium in 500 parts of water is allowed to run and 480 parts of 20% sodium hydroxide solution are slowly added to terminate the half-sided coupling. The solution of 175 parts of the sodium salt of 1-amino-2-carboxymethoxynaphthalene-6-sulphonic acid is then added in a weakly alkaline bicarbonate reaction and the resulting dye is salted out on the following day.

   The isolated dye is redissolved and diazotized at 20 with 35 parts of sodium nitrite and 600 parts of hydrochloric acid. The brown diazo compound is added as a paste to a solution of 235 parts of 1-benzoylamino-8-hydroxynaphthalene-3,6-disulfonic acid in aqueous pyrdine in the presence of 80 parts of sodium carbonate.

   The dye, isolated as usual, is a dark, metallic luster, water-soluble powder that provides clear, metallizable green colors.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines grünen Trisazofa.rbstoffes, dadurch gekennzeichnet. dass man tetrazotiertes 1-Amino-4-(4'-amino- benzoylamino)-benzol zunächst mit 1 111o1 Salieylsäure, dann mit 1 112o1 1-Amino-?- carboxymethoxynaphthalin-6-,sulfonsäure ver einigt, den so erhaltenen Aminodisa7ofarb- Stoff weiterdiazotiert und mit 1-Benzoyl- amino-8-oxynaphthalin-3,6-disulfonsäure kup pelt. PATENT CLAIM: Process for the production of a green Trisazofa dye, characterized. that tetrazotized 1-amino-4- (4'-aminobenzoylamino) -benzene is combined first with 11111 salicic acid, then with 11121 1-amino-? - carboxymethoxynaphthalene-6-, sulfonic acid, the aminodisa7ofarb substance thus obtained further diazotized and kup pelt with 1-benzoylamino-8-oxynaphthalene-3,6-disulfonic acid. Der neue Farbstoff stellt ein metallisch glänzendes wasserlösliches Pulver dar und färbt Baumwolle und regenerierte Zellulose in grünen Tönen. The new dye is a metallic, shiny, water-soluble powder and dyes cotton and regenerated cellulose in green tones.
CH226836D 1939-12-30 1941-07-30 Process for the preparation of a green trisazo dye. CH226836A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE301239X 1939-12-30
CH223071T 1941-07-30

Publications (1)

Publication Number Publication Date
CH226836A true CH226836A (en) 1943-04-30

Family

ID=25726669

Family Applications (2)

Application Number Title Priority Date Filing Date
CH226836D CH226836A (en) 1939-12-30 1941-07-30 Process for the preparation of a green trisazo dye.
CH226835D CH226835A (en) 1939-12-30 1941-07-30 Process for the preparation of a green trisazo dye.

Family Applications After (1)

Application Number Title Priority Date Filing Date
CH226835D CH226835A (en) 1939-12-30 1941-07-30 Process for the preparation of a green trisazo dye.

Country Status (1)

Country Link
CH (2) CH226836A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2553033A (en) * 1947-12-23 1951-05-15 Geigy Ag J R Tetrakisazo dyestuffs

Also Published As

Publication number Publication date
CH226835A (en) 1943-04-30

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