CH119898A - Process for the production of a new dye. - Google Patents
Process for the production of a new dye.Info
- Publication number
- CH119898A CH119898A CH119898DA CH119898A CH 119898 A CH119898 A CH 119898A CH 119898D A CH119898D A CH 119898DA CH 119898 A CH119898 A CH 119898A
- Authority
- CH
- Switzerland
- Prior art keywords
- orange
- new dye
- parts
- dye
- production
- 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. 117996. Verfahren zur Herstellung eines neuen Farbstoffes. Es wurde gefunden, dass man einen neuen Farbstoff erhält, wenn man das 2-Amino-l- oxybenzol-4-sulfamid diazotiert, hierauf mit 1-Phenyl-3-methyl-5-pyrazolon kuppelt und den so erhaltenen Farbstoff mit Alkalichro- miten behandelt.
Der neue Farbstoff bildet ein orangebraunes Pulver, löst sich in Was ser und in verdünnter Natronlauge mit oran ger, in konzentrierter Schwefelsäure mit gel ber Farbe und färbt Wolle aus saurem Bade in orangen Tönen mit vorzüglichen Eigen- sehaften. Beispiel 18,8 Teile 2-Amino-l-oxybenzol-4-sulfa- mid werden in üblicher Weise mit 6,9 Teilen Natriumnitrit diazotiert. Die Diazolösung lä.sst man in eine eiskalte Lösung von 17,
5 Teilen 1-Phenyl-3-methyl-5-pyra.zolon und 30 Teilen Soda in 250 Teilen Wasser unter Rühren einfliessen. Die Reaktionsmasse wird nach vollendeter Kupplung auf 50 ange wärmt und der Farbstoff mit Kochsalz aus- 0-lesalzen und wie üblich isoliert. 35,7 Teile des so erhaltenen Farbstoffes werden in eine kochende Lösung enthaltend 8,5 Teile Cr2O3, 150 Teile Wasser, 28 Teile Atzkali und 10 Teile Glyzerin eingetragen und längere Zeit gekocht. Nach Verdünnen mit 200 Teilen Wasser wird filtriert und der neue Farbstoff aus dem Filtrat durch Neutralisieren und Aussa.lzen isoliert.
Additional patent to main patent no. 117996. Process for the production of a new dye. It has been found that a new dye is obtained if the 2-amino-l-oxybenzene-4-sulfamide is diazotized, then coupled with 1-phenyl-3-methyl-5-pyrazolone and the dye thus obtained with alkali chromites treated.
The new dye forms an orange-brown powder, dissolves in water and in dilute caustic soda with orange, in concentrated sulfuric acid with a yellow color and dyes wool from acid baths in orange tones with excellent properties. Example 18.8 parts of 2-amino-1-oxybenzene-4-sulfamide are diazotized in the customary manner with 6.9 parts of sodium nitrite. The diazo solution is poured into an ice-cold solution of 17,
Pour 5 parts of 1-phenyl-3-methyl-5-pyra.zolon and 30 parts of soda in 250 parts of water with stirring. After coupling is complete, the reaction mass is warmed to 50 and the dyestuff is salted out with sodium chloride and isolated as usual. 35.7 parts of the dye thus obtained are introduced into a boiling solution containing 8.5 parts of Cr2O3, 150 parts of water, 28 parts of caustic potash and 10 parts of glycerine and boiled for a long time. After dilution with 200 parts of water, the mixture is filtered and the new dye is isolated from the filtrate by neutralization and salting out.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH119898T | 1925-07-03 | ||
CH117996T | 1925-07-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH119898A true CH119898A (en) | 1927-04-16 |
Family
ID=25708932
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH119898D CH119898A (en) | 1925-07-03 | 1925-07-03 | Process for the production of a new dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH119898A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE909758C (en) * | 1951-08-08 | 1954-04-26 | Geigy Ag J R | Process for the preparation of chromium-containing monoazo dyes |
DE953827C (en) * | 1951-07-18 | 1956-12-06 | Ciba Geigy | Process for the production of metal-containing azo dyes |
DE959042C (en) * | 1951-08-07 | 1957-02-28 | Ciba Geigy | Process for the production of metal-containing azo dyes |
-
1925
- 1925-07-03 CH CH119898D patent/CH119898A/en unknown
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE953827C (en) * | 1951-07-18 | 1956-12-06 | Ciba Geigy | Process for the production of metal-containing azo dyes |
DE959042C (en) * | 1951-08-07 | 1957-02-28 | Ciba Geigy | Process for the production of metal-containing azo dyes |
DE909758C (en) * | 1951-08-08 | 1954-04-26 | Geigy Ag J R | Process for the preparation of chromium-containing monoazo dyes |
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