CH116503A - Process for the production of a new dye. - Google Patents

Process for the production of a new dye.

Info

Publication number
CH116503A
CH116503A CH116503DA CH116503A CH 116503 A CH116503 A CH 116503A CH 116503D A CH116503D A CH 116503DA CH 116503 A CH116503 A CH 116503A
Authority
CH
Switzerland
Prior art keywords
production
new dye
dye
new
nitro
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 CH116503A publication Critical patent/CH116503A/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

  

      Znsatzpate'it    zum Hauptpatent Nr.     111564.            Verfahren    zur Herstellung eines neuen Farbstoffes.    Es wurde gefunden, dass man einen neuen       Farbstoff    erhält, wenn man den     Azofarbstoff,     welcher durch Kuppeln von dianotierter     4-          Nitro-2-amino-l-phenol-6-sulfosäure    mit     Acet-          essigester    erhalten wird, mit     Chromformiat     behandelt.

   Der neue     Farbstoff    bildet ein olives  Pulver, löst sich in Wasser mit gelber, in  verdünnter Natronlauge mit oranger Farbe  und färbt Wolle aus saurem Bade in sehr  gleichmässigen, echten,     rotstichig    gelben  Tönen an.  



  <I>Beispiel:</I>  39,7 Teile des Farbstoffes, erhalten durch       Kuppeln    von     4-Nitro-2-diazo-l-phenol-6-sulfo-          säure    mit     Acetessigester,    werden einige Zeit  in wässeriger Lösung mit einer     Ohrornformiat-          lösung    entsprechend 22,5 Teilen     Cr20s    er-    wärmt. Die Lösung wird sodann eingedampft  und der Farbstoff mit Kochsalz- ausgefällt.



      Addition to main patent no. 111564. Process for the production of a new dye. It has been found that a new dye is obtained if the azo dye, which is obtained by coupling dianotated 4-nitro-2-amino-1-phenol-6-sulfonic acid with acetic acetate, is treated with chromium formate.

   The new dye forms an olive powder, dissolves in water with yellow, in dilute caustic soda with orange color and colors wool from acid baths in very even, genuine, reddish yellow tones.



  <I> Example: </I> 39.7 parts of the dye, obtained by coupling 4-nitro-2-diazo-1-phenol-6-sulfonic acid with acetoacetic ester, are for some time in aqueous solution with an auron formate solution heated to the equivalent of 22.5 parts Cr20s. The solution is then evaporated and the dye is precipitated with sodium chloride.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Farbstoffes, dadurch gekennzeichnet, dass man den Azofarbstoff, welcher durch Kuppeln von dianotierter 4-Nitro-2-amino-l-phenol-6-sulfo- säure mit Acetessigester erhalten wird, mit Chromformiat behandelt. Der neue Farbstoff bildet ein olives Pulves, löst sich in Wasser mit gelber, in verdünnter Natronlauge mit oranger Farbe und färbt Wolle aus saurem Bade in sehr gleichmässigen, echten, rot stichig gelben Tönen an. Claim: A process for the production of a new dye, characterized in that the azo dye, which is obtained by coupling dianotated 4-nitro-2-amino-1-phenol-6-sulfonic acid with acetoacetic ester, is treated with chromium formate. The new dye forms an olive powder, dissolves in water with yellow, in dilute caustic soda with orange color and dyes wool from acid baths in very even, genuine, red, yellowish tones.
CH116503D 1924-06-17 1924-06-17 Process for the production of a new dye. CH116503A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH111564T 1924-06-17
CH116503T 1924-06-17

Publications (1)

Publication Number Publication Date
CH116503A true CH116503A (en) 1926-09-01

Family

ID=25707869

Family Applications (1)

Application Number Title Priority Date Filing Date
CH116503D CH116503A (en) 1924-06-17 1924-06-17 Process for the production of a new dye.

Country Status (1)

Country Link
CH (1) CH116503A (en)

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