CH166083A - Process for the production of a new metal-containing dye. - Google Patents
Process for the production of a new metal-containing dye.Info
- Publication number
- CH166083A CH166083A CH166083DA CH166083A CH 166083 A CH166083 A CH 166083A CH 166083D A CH166083D A CH 166083DA CH 166083 A CH166083 A CH 166083A
- Authority
- CH
- Switzerland
- Prior art keywords
- containing dye
- production
- new metal
- sulfo
- dye
- 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)
Description
<B>Zusatzpatent</B> zum Hauptpatent Nr. 163542. verfahren zur Herstellung eines neuen metallhaltigen Farbstoffes. Es wurde gefunden, dass man einen neuen metallhaltigen Farbstoff erhalten kann, wenn man den Azofarbstoff aus diazotierter 4-Sulfo- 2-aminobenzol-l-karbonsäure und 1-(4'-Sulfo-)- phenyl-3-methyl-5-pyrazolon mit chromabge benden Mitteln behandelt.
Der erhaltene metallhaltige Farbstoff stellt ein dunkelgelbes Pulver dar, das sich in Wasser mit gelber Farbe löst uud Wolle aus saurem Bade in gleichmässigen, rötlichgelben Tönen färbt, die vorzüglich licht-, sowie gut walkecht sind.
<I>Beispiel:</I> Eine konzentrierte wässerige Lösung von 22,9 Teilen des Azofarbstoffes aus diazotierter 4-Sulfo-2-anririobenzol-l-karbonsäure und 1 (4'-Sulfo-)hhenyl- 3-methyl - 5 -pyrazolon wird mit 4,6 Teilen Chromoxyd in Form von Chromi-. oxalat mehrere Stunden unter Rückfuss zum Sieden erhitzt. Das vom Farbstoff nicht auf genommene Chrom wird durch Alkalizusatz entfernt und das Filtratzur Trockne verdampft.
<B> Additional patent </B> to main patent no. 163542. Process for the production of a new metal-containing dye. It has been found that a new metal-containing dye can be obtained if the azo dye is obtained from diazotized 4-sulfo-2-aminobenzene-1-carboxylic acid and 1- (4'-sulfo -) - phenyl-3-methyl-5-pyrazolone treated with chromium-releasing agents.
The metal-containing dye obtained is a dark yellow powder which dissolves in water with a yellow color and dyes wool from an acidic bath in uniform, reddish-yellow shades which are excellent lightfast and good millfast.
<I> Example: </I> A concentrated aqueous solution of 22.9 parts of the azo dye from diazotized 4-sulfo-2-anriiobenzene-1-carboxylic acid and 1 (4'-sulfo-) hhenyl-3-methyl - 5 - Pyrazolon is with 4.6 parts of chromium oxide in the form of Chromi-. oxalate heated to boiling under reflux for several hours. The chromium not absorbed by the dye is removed by adding alkali and the filtrate is evaporated to dryness.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH163542T | 1932-07-20 | ||
CH166083T | 1932-07-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH166083A true CH166083A (en) | 1933-12-15 |
Family
ID=25717800
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH166083D CH166083A (en) | 1932-07-20 | 1932-07-20 | Process for the production of a new metal-containing dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH166083A (en) |
-
1932
- 1932-07-20 CH CH166083D patent/CH166083A/en unknown
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