CH119368A - Process for the production of a new dye. - Google Patents

Process for the production of a new dye.

Info

Publication number
CH119368A
CH119368A CH119368DA CH119368A CH 119368 A CH119368 A CH 119368A CH 119368D A CH119368D A CH 119368DA CH 119368 A CH119368 A CH 119368A
Authority
CH
Switzerland
Prior art keywords
new dye
production
parts
acid
new
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 CH119368A publication Critical patent/CH119368A/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

  

  Verfahren zur Herstellung eines neuen Farbstoffes.    Es wurde gefunden, dass man einen neuen       Farbstoff    erhält, wenn man     Barbitursäure     mit     diazotierter        4-Sulfo-2-amino-l-phenol-6-          karbonsäure    kuppelt und das so erhaltene  Produkt mit     Chromformiat    behandelt. Der  neue Farbstoff bildet ein braunes- Pulver,  löst sich in verdünnter     Sodalösung    mit gel  ber Farbe und erzeugt auf .Wolle, aus saurem  Bade gefärbt, echte gelbe Töne.  



       Beispiel:     232 Teile     4-Sulfo-2-amino-l-phenol-6-kar-          bonsäure    werden wie üblich     diazotiert    und  in ein Gemisch aus 134 Teilen     Barbitur-          säure,    133 Teilen 30     %iger    Natronlauge, 170  Teilen Soda und 1500 Teilen Wasser einge  tragen. Die Kupplung setzt sofort ein, zu  ihrer Vervollständigung rührt man noch  einige Zeit. Der gebildete Farbstoff wird  dann filtriert und getrocknet.  



  37,7 Teile dieses     Firbstoffes    werden in  <B>650</B> Teilen kochendem Wasser gelöst und mit    einer     Chromformiatlösung    entsprechend 15,2  Teilen     Cr203    versetzt. Man kocht mehrere  Stunden am     Rückflusskühler,    dampft teil  weise ein und gewinnt die neue Chromver  bindung durch Filtrieren, gegebenenfalls un  ter vorherigem     Aussalzen.  



  Process for the production of a new dye. It has been found that a new dye is obtained if barbituric acid is coupled with diazotized 4-sulfo-2-amino-1-phenol-6-carboxylic acid and the product thus obtained is treated with chromium formate. The new dye forms a brown powder, dissolves in a dilute soda solution with a yellow color and dissolves. Wool, dyed from an acid bath, produces real yellow tones.



       Example: 232 parts of 4-sulfo-2-amino-1-phenol-6-carboxylic acid are diazotized as usual and mixed with 134 parts of barbituric acid, 133 parts of 30% strength sodium hydroxide solution, 170 parts of soda and 1500 parts of water entered. The clutch works immediately, and stir for some time to complete. The dye formed is then filtered and dried.



  37.7 parts of this dye are dissolved in 650 parts of boiling water and a chromium formate solution corresponding to 15.2 parts of Cr 2 O 3 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 Barbitursäure mit diazotierter 4-Sulfo- 2-amino-l-phenol-6-karbonsäure kuppelt und das so erhaltene Produkt mit Chromformiat behandelt. Der neue Farbstoff bildet ein braunes Pulver, löst sich in verdünnter Solo lösung mit gelber Farbe und erzeugt auf Wolle, aus saurem Bade gefärbt, echte gelbe Töne. PATENT CLAIM: Process for producing a new dye, characterized in that barbituric acid is coupled with diazotized 4-sulfo-2-amino-1-phenol-6-carboxylic acid and the product thus obtained is treated with chromium formate. The new dye forms a brown powder, dissolves in a dilute solo solution with a yellow color and produces real yellow tones on wool dyed from an acid bath.
CH119368D 1924-12-24 1924-12-24 Process for the production of a new dye. CH119368A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH114283T 1924-12-24
CH119368T 1924-12-24

Publications (1)

Publication Number Publication Date
CH119368A true CH119368A (en) 1927-03-01

Family

ID=25708295

Family Applications (1)

Application Number Title Priority Date Filing Date
CH119368D CH119368A (en) 1924-12-24 1924-12-24 Process for the production of a new dye.

Country Status (1)

Country Link
CH (1) CH119368A (en)

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