CH192476A - Process for the preparation of a monoazo dye. - Google Patents
Process for the preparation of a monoazo dye.Info
- Publication number
- CH192476A CH192476A CH192476DA CH192476A CH 192476 A CH192476 A CH 192476A CH 192476D A CH192476D A CH 192476DA CH 192476 A CH192476 A CH 192476A
- Authority
- CH
- Switzerland
- Prior art keywords
- preparation
- dye
- monoazo dye
- diazotized
- naphthol
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 4
- 238000002360 preparation method Methods 0.000 title claims description 4
- NYGZLYXAPMMJTE-UHFFFAOYSA-M metanil yellow Chemical group [Na+].[O-]S(=O)(=O)C1=CC=CC(N=NC=2C=CC(NC=3C=CC=CC=3)=CC=2)=C1 NYGZLYXAPMMJTE-UHFFFAOYSA-M 0.000 title claims description 3
- 239000000975 dye Substances 0.000 claims description 7
- 239000002253 acid Substances 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 2
- 210000004243 sweat Anatomy 0.000 claims description 2
- 239000004552 water soluble powder Substances 0.000 claims description 2
- 210000002268 wool Anatomy 0.000 claims description 2
- 239000000987 azo dye Substances 0.000 claims 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 description 1
Landscapes
- Coloring (AREA)
Description
Verfahren zur Herstellung eines Nonoazofarbstoffes. Vorliegendes Patent bezieht sich auf ein Verfahren zur Herstellung eines Monoazo- farbstoffes, dadurch gekennzeichnet, dass man diazotiertes p-Aminobenzoyl-äthyl-a-naphthyl- amin in sodaalkalischem Medium mit 1-(2'- Chlor-phenoxy-acetylamino) - 8 - naphthol-4. 6- disulfosäure kuppelt.
Der neue Farbstoff stellt nach dem Trock nen ein rotes wasserlösliches Pulver dar und färbt Wolle und Seide in sehr leuchtenden Rottönen von hervorragender Waschechtheit und sehr guter Schweiss- und Lichtechtheit. <I>Beispiel:</I> 29 Teile p-Aminoberizoyl-äthyl-a-naph- thylamin werden in üblicher Weise diazotiert. Die erhaltene Diazolösung lässt man in eine mit überschüssiger Soda versetzte Lösung von 49 Teilen 1- (2'- Chlor - phenoxy - acetyl- amino)-8-naphthol-4.6-disulfosäure laufen. Nach beendeter Kupplung wird der Farbstoff isoliert und getrocknet.
Process for the preparation of a nonoazo dye. The present patent relates to a process for the preparation of a monoazo dye, characterized in that diazotized p-aminobenzoyl-ethyl-a-naphthyl-amine in a soda-alkaline medium with 1- (2'-chloro-phenoxy-acetylamino) - 8 - naphthol-4. 6- disulfonic acid couples.
After drying, the new dye is a red, water-soluble powder and dyes wool and silk in very bright red shades of excellent washfastness and very good fastness to sweat and light. <I> Example: </I> 29 parts of p-aminoberizoyl-ethyl-a-naphthylamine are diazotized in the usual way. The resulting diazo solution is run into a solution of 49 parts of 1- (2'-chloro-phenoxy-acetyl-amino) -8-naphthol-4,6-disulfonic acid, to which excess soda is added. After the coupling has ended, the dye is isolated and dried.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE192476X | 1935-05-09 | ||
| CH190156T | 1936-04-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH192476A true CH192476A (en) | 1937-08-15 |
Family
ID=25721953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH192476D CH192476A (en) | 1935-05-09 | 1936-04-27 | Process for the preparation of a monoazo dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH192476A (en) |
-
1936
- 1936-04-27 CH CH192476D patent/CH192476A/en unknown
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