CH119379A - Process for the production of a new dye. - Google Patents
Process for the production of a new dye.Info
- Publication number
- CH119379A CH119379A CH119379DA CH119379A CH 119379 A CH119379 A CH 119379A CH 119379D A CH119379D A CH 119379DA CH 119379 A CH119379 A CH 119379A
- Authority
- CH
- Switzerland
- Prior art keywords
- new dye
- acid
- parts
- production
- orange
- Prior art date
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
Zusatzpatent zum Hauptpatent Nr. 114283. 'Verfahren zur Herstellung eines neuen Farbstoffes. Es wurde gefunden, dass man einen neuen Farbstoff erhält, wenn man die jenige ss-Naphthylbarhitursäure, welche aus ss-Naphtliylharnstoff und Malonester erhal ten wird, mit diazotierter 4-Chlor-2-amino= 1.-phenol-5-sulfosäure kuppelt und das so erhaltene Produkt mit Fluorchrom be handelt.
Der neue Farbstoff bildet ein orangebraunes Pulver, löst sich in verdünn 1er Sololösung mit oranger Farbe und erzeugt iiuf Wolle, aus saurem Bade gefärbt, echte rotbraune Töne.
Beispiel: 224 Teile 4-Chlor-2-amino-l-plienol-5- Sulfosäure werden wie üblich diazotiert und in ein Gemisch aus 267 Teilen ss- Naphthylbarbitursäure, 133 Teilen 30 %iger Natronlauge, 170 Teilen Soda und 1500 Tei len Wasser eingetragen. Die Kupplung setzt sofort ein; zu ihrer Vervollständigung rührt nian noch einige Zeit.
Der gebildete Farb- 4off wird dann filtriert und getrocknet. 50,2 Teile dieses Farbstoffes werden in 650 Teilen kochendem Wasser gelöst und mit einer Fluorchromlösung, entsprechend 15,2 Teilen Cr203, versetzt. Man kocht mehrere Stunden am Rückflusskühler, dampft teilweise ein und gewinnt die neue Chrom verbindung durch Filtrieren, gegebenenfalls unter vorherigem Aussalzen.
Additional patent to main patent No. 114283. Process for the production of a new dye. It has been found that a new dye is obtained if the one ss-naphthylbarhituric acid, which is obtained from ss-naphthylurea and malonic ester, is coupled with diazotized 4-chloro-2-amino = 1.-phenol-5-sulfonic acid and the product thus obtained is treated with fluorochrome be.
The new dye forms an orange-brown powder, dissolves in a dilute solo solution with an orange color and produces genuine red-brown tones on wool, dyed from an acid bath.
Example: 224 parts of 4-chloro-2-amino-l-plienol-5-sulfonic acid are diazotized as usual and introduced into a mixture of 267 parts of ss-naphthylbarbituric acid, 133 parts of 30% sodium hydroxide solution, 170 parts of soda and 1500 parts of water . The clutch works immediately; it will take some time to complete it.
The dye 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 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 filtration, if necessary with prior salting out.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH119379T | 1924-12-24 | ||
CH114283T | 1924-12-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH119379A true CH119379A (en) | 1927-03-16 |
Family
ID=25708306
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH119379D CH119379A (en) | 1924-12-24 | 1924-12-24 | Process for the production of a new dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH119379A (en) |
-
1924
- 1924-12-24 CH CH119379D patent/CH119379A/en unknown
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