CH119380A - Process for the production of a new dye. - Google Patents

Process for the production of a new dye.

Info

Publication number
CH119380A
CH119380A CH119380DA CH119380A CH 119380 A CH119380 A CH 119380A CH 119380D A CH119380D A CH 119380DA CH 119380 A CH119380 A CH 119380A
Authority
CH
Switzerland
Prior art keywords
new dye
production
yellow
acid
parts
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 CH119380A publication Critical patent/CH119380A/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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Coloring (AREA)

Description

  

  Verfahren zur Herstellung eines neuen     Farbstoffes.       Es wurde gefunden, dass man einen  neuen Farbstoff erhält, wenn man die  jenige     ss-Naphthylbarbitursäure,    welche aus       ss-Naphthylharnstoff    und     Malonester    -erhal  ten wird, mit     diazotierter        4-Chlor-2-aanino-          1-phenol-6-sulfosäure    kuppelt und das so  erhaltene Produkt mit     Fluorchrom    be  handelt. Der neue Farbstoff bildet ein  gelbbraunes Pulver, löst sich in verdünn  ter     Sodalösung    mit gelber Farbe und erzeugt  auf Wolle, aus saurem Bade gefärbt, echte  rotgelbe Töne.  



       Beispiel:     224     Teile        4-Chlor-2-amino-l-phenol-6-          sulfosäure    werden wie üblich     diazotiert     und in ein Gemisch aus 267 Teilen     ss-          Naphthylbarbitursäure,        133    Teilen 30     %iger     Natronlauge, 1.70 Teilen Soda und 1500 Tei  len Wasser eingetragen. Die Kupplung setzt  sofort ein; zu ihrer Vervollständigung rührt  man noch einige Zeit. Der gebildete Farb  stoff wird darin filtriert und getrocknet.

      50,2 Teile dieses Farbstoffes werden in  650 Teilen kochendem Wasser gelöst und  mit einer,     Fluorchromlösung,    entsprechend  15,2 Teilen     Cr2Os,    versetzt. Man kocht  mehrere Stunden am     Rüekflusskühler,    dampft  teilweise ein und gewinnt die neue Chrom  verbindung durch Filtrieren, gegebenenfalls  unter vorherigem     Aussalzen.  



  Process for the production of a new dye. It has been found that a new dye is obtained if the one ss-naphthylbarbituric acid, which is obtained from ss-naphthylurea and malonic ester, is coupled with diazotized 4-chloro-2-aanino-1-phenol-6-sulfonic acid and the product thus obtained is treated with fluorochrome be. The new dye forms a yellow-brown powder, dissolves in a dilute soda solution with a yellow color and produces genuine red-yellow tones on wool dyed from an acid bath.



       Example: 224 parts of 4-chloro-2-amino-1-phenol-6-sulfonic acid are diazotized as usual and introduced into a mixture of 267 parts of ss-naphthylbarbituric acid, 133 parts of 30% strength sodium hydroxide, 1.70 parts of soda and 1500 parts of water . The clutch works immediately; stir for a while to complete them. The color formed is then filtered and dried.

      50.2 parts of this dye are dissolved in 650 parts of boiling water and a fluorochrome solution, corresponding to 15.2 parts of Cr2Os, is added. It is boiled for several hours on the reflux condenser, partially evaporated and the new chromium compound is obtained by filtering, if necessary with prior salting out.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Farbstoffes, dadurch gekennzeichnet, dass man diejenige ss-Naphthylbarbitursäure, wel che aus ss-Naphthylharnstoff und Malon- ester erhalten wird, mit diazotierter 4- Chlor-2-amino-l-phenol-6-sulfosäure kuppelt und das so erhaltene Produkt mit Fluoi- chrom behandelt. Der neue Farbstoff bildet ein gelbbraunes Pulver, löst sich in ver dünnter Sodalösung mit gelber Farbe und erzeugt auf Wolle, aus saurem Bade gefärbt, echte rotgelbe Töne. Claim: Process for the production of a new dye, characterized in that the ß-naphthylbarbituric acid which is obtained from ß-naphthylurea and malonic ester is coupled with diazotized 4-chloro-2-amino-1-phenol-6-sulfonic acid and the product thus obtained is treated with fluorochrome. The new dye forms a yellow-brown powder, dissolves in a dilute soda solution with a yellow color and produces genuine red-yellow tones on wool dyed from an acid bath.
CH119380D 1924-12-24 1924-12-24 Process for the production of a new dye. CH119380A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH119380T 1924-12-24
CH114283T 1924-12-24

Publications (1)

Publication Number Publication Date
CH119380A true CH119380A (en) 1927-03-16

Family

ID=25708307

Family Applications (1)

Application Number Title Priority Date Filing Date
CH119380D CH119380A (en) 1924-12-24 1924-12-24 Process for the production of a new dye.

Country Status (1)

Country Link
CH (1) CH119380A (en)

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