CH227517A - Process for the preparation of a water-soluble monoazo dye. - Google Patents
Process for the preparation of a water-soluble monoazo dye.Info
- Publication number
- CH227517A CH227517A CH227517DA CH227517A CH 227517 A CH227517 A CH 227517A CH 227517D A CH227517D A CH 227517DA CH 227517 A CH227517 A CH 227517A
- Authority
- CH
- Switzerland
- Prior art keywords
- monoazo dye
- preparation
- water
- soluble monoazo
- soluble
- 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
- C09B29/00—Monoazo dyes prepared by diazotising and coupling
- C09B29/24—Monoazo dyes prepared by diazotising and coupling from coupling components containing both hydroxyl and amino directing groups
- C09B29/28—Amino naphthols
- C09B29/30—Amino naphtholsulfonic acid
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
Verfahren zur Herstellung eines wasserlöslichen Monoazofarbstoifes. Vorliegendes Patent bezieht sich auf ein Verfahren zur Herstellung eines wasserlös lichen Monoazofarbstoffes, dadurch gekenn zeichnet, dass man die Diazoverbindunö von 2-Amino-4,6-dimethyl-2',4'-dichlor-1,1'- diphenyläther mit 1-(2',5'-Dichlorbenzoyl- amino) - 8 - ogynaphthalin - 4,6 - disulf onsäure kuppelt.
Der so erhaltene Monoazofarbstoff ist ein rotes Pulver und färbt Wolle aus saurem oder neutralem Bade in leuchtend roten Farb tönen von sehr guten Echtheitseigenschaften. <I>Beispiel:</I> 28,2 Teile 2-Amino-4,6-dimethyl-2',4'- dichlor-1,1'-diphenyläther werden in bekann ter Weise diazotiert, und die Diazoverbin- dung wird in Gegenwart eines Überschusses von Natriumcarbonat mit 50 Teilen 1-(2',5'- Dichlorbenzoylamino) - 8 - ogynaphthalin- 4,
6- disulfonsäure gekuppelt. Der erhaltene Farb stoff wird abgeschieden und getrocknet.
Process for the preparation of a water-soluble monoazo dye. The present patent relates to a process for the preparation of a water-soluble monoazo dye, characterized in that the Diazoverbindunö of 2-amino-4,6-dimethyl-2 ', 4'-dichloro-1,1'-diphenyl ether with 1- (2 ', 5'-dichlorobenzoylamino) - 8 - ogynaphthalene - 4,6 - disulfonic acid couples.
The monoazo dye thus obtained is a red powder and dyes wool from an acidic or neutral bath in bright red shades of very good fastness properties. <I> Example: </I> 28.2 parts of 2-amino-4,6-dimethyl-2 ', 4'-dichloro-1,1'-diphenyl ether are diazotized in a known manner, and the diazo compound is in the presence of an excess of sodium carbonate with 50 parts 1- (2 ', 5'-dichlorobenzoylamino) - 8 - ogynaphthalene- 4,
6- disulfonic acid coupled. The dye obtained is deposited and dried.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH227517T | 1942-01-24 | ||
CH225367T | 1942-01-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH227517A true CH227517A (en) | 1943-06-15 |
Family
ID=25726868
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH227517D CH227517A (en) | 1942-01-24 | 1942-01-24 | Process for the preparation of a water-soluble monoazo dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH227517A (en) |
-
1942
- 1942-01-24 CH CH227517D patent/CH227517A/en unknown
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