CH116511A - Process for the production of a new dye. - Google Patents

Process for the production of a new dye.

Info

Publication number
CH116511A
CH116511A CH116511DA CH116511A CH 116511 A CH116511 A CH 116511A CH 116511D A CH116511D A CH 116511DA CH 116511 A CH116511 A CH 116511A
Authority
CH
Switzerland
Prior art keywords
new dye
dye
production
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 CH116511A publication Critical patent/CH116511A/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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  <B>Zusatzpatent</B> zum Hauptpatent Nr. 111564.    Verfahren zur Herstellung eines neuen     Farbstoffes.       Es     wurde    gefunden, dass man einen neuen       Farbstoff    erhält, wenn man den     Azofarb-          stoff,    welcher durch Kuppeln von     diazotier-          ter        6-Nitro-2-amino-l-phenol-4-sulfosäure    mit       Acetessiganilid    erhalten wird, mit Chrom  fluorid behandelt. Der neue Farbstoff     bildet     ein braunes Pulver, löst sich in Wasser mit  gelber Farbe und färbt Wolle aus saurem  Bade in sehr gleichmässigen, echten rötlich  gelben Tönen an.  



       Beispiel:     44,4 Teile des     Natronsalzes    des Farb  stoffes, erhalten durch Kuppeln von     6-Nitro-          2-diazo-l-phenol-4-sulfosäure    mit     Acetessig-          anilid,        werden    in 1000 Teilen Wasser gelöst,  mit einer     Chromfluoridlösung,        entsprechend     22,5 Teilen     Cr203,    versetzt und einige Zeit    bei Gegenwart von 10 Teilen Glaspulver zum  Sieden erhitzt. Die Lösung wird hierauf  durch Verdampfen     konzentriert    und der  Farbstoff mit Kochsalz ausgefällt.



  <B> Additional patent </B> 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 diazotized 6-nitro-2-amino-1-phenol-4-sulfonic acid with acetoacetanilide, is treated with chromium fluoride. The new dye forms a brown powder, dissolves in water with a yellow color and dyes wool from an acid bath in very even, genuine reddish yellow tones.



       Example: 44.4 parts of the sodium salt of the dye, obtained by coupling 6-nitro-2-diazo-1-phenol-4-sulfonic acid with acetoacetic anilide, are dissolved in 1000 parts of water with a chromium fluoride solution corresponding to 22, 5 parts Cr203, added and heated to boiling for some time in the presence of 10 parts glass powder. The solution is then concentrated by evaporation and the dye is precipitated with common salt.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Farbstoffes, dadurch gekennzeichnet, dass man den Azofarbstoff, welcher durch Kup peln von diazotierter 6-Nitro-2-amino-l-phe- nol-4-sulfosäure mit Acetessiganilid erhalten wird, mit Chromfluorid behandelt. Der neue Farbstoff bildet ein braunes Pulver, löst sich in Wasser mit gelber Farbe und färbt Wolle aus saurem Bade in sehr gleichmässigen, ech ten rötlichgelben Tönen an. Claim: Process for the preparation of a new dye, characterized in that the azo dye, which is obtained by coupling diazotized 6-nitro-2-amino-1-phenol-4-sulfonic acid with acetoacetanilide, is treated with chromium fluoride. The new dye forms a brown powder, dissolves in water with a yellow color and dyes wool from an acid bath in very even, genuine reddish-yellow tones.
CH116511D 1924-06-17 1924-06-17 Process for the production of a new dye. CH116511A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH111564T 1924-06-17
CH116511T 1924-06-17

Publications (1)

Publication Number Publication Date
CH116511A true CH116511A (en) 1926-09-01

Family

ID=25707877

Family Applications (1)

Application Number Title Priority Date Filing Date
CH116511D CH116511A (en) 1924-06-17 1924-06-17 Process for the production of a new dye.

Country Status (1)

Country Link
CH (1) CH116511A (en)

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