CH109617A - Process for the production of an azo dye particularly suitable for chrome printing on cotton. - Google Patents

Process for the production of an azo dye particularly suitable for chrome printing on cotton.

Info

Publication number
CH109617A
CH109617A CH109617DA CH109617A CH 109617 A CH109617 A CH 109617A CH 109617D A CH109617D A CH 109617DA CH 109617 A CH109617 A CH 109617A
Authority
CH
Switzerland
Prior art keywords
cotton
brown
production
particularly suitable
azo dye
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 CH109617A publication Critical patent/CH109617A/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
    • C09B45/24—Disazo or polyazo compounds
    • C09B45/26—Disazo or polyazo compounds containing chromium
    • 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
    • C09B33/00—Disazo and polyazo dyes of the types A->K<-B, A->B->K<-C, or the like, prepared by diazotising and coupling
    • C09B33/02—Disazo dyes
    • C09B33/04—Disazo dyes in which the coupling component is a dihydroxy or polyhydroxy compound

Landscapes

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

Description

  

  <B>Zusatzpatent</B> zum Hauptpatent Nr. 94229.         Verfahren    zur Herstellung eines für den Chromdruck auf Baumwolle besonders  geeigneten     Azofarbstoffes.       Es wurde gefunden, dass man durch Kup  peln von 1     Mol.        diazotierter        1-Oxy-2-amino-          4-nitrobenzol-6-karbonsäure    und 1     Mol.        dia-          zotierter        1-Aminobenzol-3-sulfosäure    mit  1     Mol.        Resorcylsäure    einen     Azofarbstoff    er  hält, welcher bei dem     Chromdruck,

  auf    Baum  wolle ein gelbes Braun von guten Echtheits  eigenschaften erzeugt.         Beispiel:            Man    kuppelt zunächst die     Diazoverbin-          dung    aus 19,8 Teilen     1-Oxy-2-amino-4-nitro-          benzol-6-karbonsäure    mit 15,4 Teilen     Re-          sorcylsäure    bei Gegenwart von 30 Teilen  Soda. Ist die Kupplung vollendet, so setzt .  man weitere 10 Teile Soda zu und lässt die  auf übliche-Weise bereitete     Diazoverbindung     aus 17,3 Teilen     1-Aminobenzol-3-sulfosäure     und 6,9 Teilen     Natriumnitrit    einfliessen.

    Nach mehrstündigem Rühren ist die Kom  bination vollendet und man scheidet alsdann  den Farbstoff auf übliche Weise ab.  



  Der neue Farbstoff     ist    in Wasser mit  gelbbrauner Farbe löslich, welche auf Zu-         satz    von Lauge rotbraun wird. In konzen  trierter Schwefelsäure löst er sich mit braun  roter Farbe. Mit Chromacetat auf Baum  wolle gedruckt, erhält man ein gelbes Braun  von guten Echtheitseigenschaften.



  <B> Additional patent </B> to main patent No. 94229. Process for the production of an azo dye particularly suitable for chrome printing on cotton. It has been found that coupling 1 mole of diazotized 1-oxy-2-amino-4-nitrobenzene-6-carboxylic acid and 1 mole of diazotized 1-aminobenzene-3-sulfonic acid with 1 mole of resorcylic acid produces an azo dye he holds, which at the chrome print,

  A yellow brown with good fastness properties is produced on cotton. Example: The diazo compound is first coupled from 19.8 parts of 1-oxy-2-amino-4-nitrobenzene-6-carboxylic acid with 15.4 parts of resorbic acid in the presence of 30 parts of soda. If the coupling is complete, then. a further 10 parts of soda are added and the diazo compound prepared in the usual manner from 17.3 parts of 1-aminobenzene-3-sulfonic acid and 6.9 parts of sodium nitrite is allowed to flow in.

    After several hours of stirring, the combination is complete and the dye is then separated off in the usual way.



  The new dye is soluble in water with a yellow-brown color, which turns red-brown with the addition of lye. In concentrated sulfuric acid it dissolves with a brown-red color. Printed on cotton with chromium acetate, the result is a yellow brown with good fastness properties.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines für den Chromdruck auf Baumwolle besonders ge eigneten Azofarbstoffes, dadurch gekenn zeichnet, dass 1 Mol. diazotierter 1-Oxy-2- @amino-4-nitrobenzol-6-kaTbonsäure und 1 Mol. diazotierte Aminobenzol-3-sulfosäure mit 1 Mol. Resorcylsäure gekuppelt werden. Der neue Farbstoff ist in Wasser mit gelbbrauner Farbe löslich, welche auf- Zu satz von Lauge rotbraun wird. In konzen trierter Schwefelsäure löst er sich mit braun roter Farbe. PATENT CLAIM: Process for the production of an azo dye which is particularly suitable for chrome printing on cotton, characterized in that 1 mol. Of diazotized 1-oxy-2- @ amino-4-nitrobenzene-6-kaTboxylic acid and 1 mol. Of diazotized aminobenzene-3- sulfonic acid can be coupled with 1 mole of resorcylic acid. The new dye is soluble in water with a yellow-brown color, which becomes red-brown with the addition of lye. In concentrated sulfuric acid it dissolves with a brown-red color. Mit Chromacetat auf Baum wolle gedruckt, erhält man ein gelbes Braun von guten Echtheitseigenschaften. Printed on cotton with chromium acetate, the result is a yellow brown with good fastness properties.
CH109617D 1921-03-15 1924-05-27 Process for the production of an azo dye particularly suitable for chrome printing on cotton. CH109617A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH94229T 1921-03-15
CH109617T 1924-05-27

Publications (1)

Publication Number Publication Date
CH109617A true CH109617A (en) 1925-04-01

Family

ID=25704800

Family Applications (1)

Application Number Title Priority Date Filing Date
CH109617D CH109617A (en) 1921-03-15 1924-05-27 Process for the production of an azo dye particularly suitable for chrome printing on cotton.

Country Status (1)

Country Link
CH (1) CH109617A (en)

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