CH90706A - Process for the preparation of a monoazo dye for wool. - Google Patents
Process for the preparation of a monoazo dye for wool.Info
- Publication number
- CH90706A CH90706A CH90706DA CH90706A CH 90706 A CH90706 A CH 90706A CH 90706D A CH90706D A CH 90706DA CH 90706 A CH90706 A CH 90706A
- Authority
- CH
- Switzerland
- Prior art keywords
- wool
- preparation
- dye
- monoazo dye
- brown
- Prior art date
Links
- 210000002268 wool Anatomy 0.000 title claims description 5
- 238000000034 method Methods 0.000 title claims description 3
- 238000002360 preparation method Methods 0.000 title claims description 3
- 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 description 2
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 9
- 238000004043 dyeing Methods 0.000 claims description 4
- ZMCHBSMFKQYNKA-UHFFFAOYSA-N 2-aminobenzenesulfonic acid Chemical compound NC1=CC=CC=C1S(O)(=O)=O ZMCHBSMFKQYNKA-UHFFFAOYSA-N 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 3
- 239000012670 alkaline solution Substances 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 150000008049 diazo compounds Chemical class 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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
-
- 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 Darstellung eines Monoazofarbstofes für Wolle.- Es wurde gefunden, dass man zu einem technisch wertvollen Farbstoff gelangt; wenn man diazotierte Anilin-o-sulfosäure mit 2- Amino-7-oxynaphtalin in alkalischer Lösung kuppelt. Bei sehr gutem Egalisierungsver-- mögen des so erhaltenen Farbstoffes werden Färbungen von guter Wasch- und Alkali echtheit erzielt; durch Behandeln mit Formal dehyd werden die Echtheitseigenschaften der Färbungen noch. weiter erhöht.
<I>. Beispiel:</I> 173 Teile Anilin-o-sulfosäure werden in bekannter Weise diazotiert. Die' gebildete Diazoverbindung -lässt man einlaufen in eine mit überschüssiger Soda versetzte. Lösung von 167 Teilen 2-Amino-7-oxy iäphtaliri, ge löst mit der, berechneten Menge-Natronlange. Nach kurzem Anwärmen wird der Farbstoff ausgesalzen und abgeschieden.
Er bildet getrookrret ein braunes Pulver und liefert auf Wolle gelbbraune egale Fär bungen von guter Wasch- und Alkaliecht- beit, die durch Behandeln mit Formaldehyd. noch weiter verbessert werden. - .
Process for the preparation of a monoazo dye for wool.- It has been found that an industrially valuable dye is obtained; when diazotized aniline-o-sulfonic acid is coupled with 2-amino-7-oxynaphthalene in alkaline solution. If the dye obtained in this way has very good leveling power, dyeings of good fastness to washing and alkali are achieved; the fastness properties of the dyeings are increased by treatment with formaldehyde. further increased.
<I>. Example: 173 parts of aniline-o-sulfonic acid are diazotized in a known manner. The 'formed diazo compound is allowed to run into a with excess soda. Solution of 167 parts of 2-amino-7-oxy iäphtaliri, dissolved ge with the calculated amount of soda length. After a short warm-up, the dye is salted out and deposited.
Getrookrret forms a brown powder and produces yellow-brown level dyeings on wool that are washable and alkali-resistant, which can be achieved by treating with formaldehyde. can be further improved. -.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE518693X | 1914-06-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH90706A true CH90706A (en) | 1921-09-16 |
Family
ID=6550160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH90706D CH90706A (en) | 1914-06-30 | 1920-06-17 | Process for the preparation of a monoazo dye for wool. |
Country Status (3)
| Country | Link |
|---|---|
| CH (1) | CH90706A (en) |
| FR (1) | FR518693A (en) |
| GB (1) | GB146871A (en) |
-
1920
- 1920-06-17 CH CH90706D patent/CH90706A/en unknown
- 1920-07-01 FR FR518693A patent/FR518693A/en not_active Expired
- 1920-07-05 GB GB1876020A patent/GB146871A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB146871A (en) | 1921-11-07 |
| FR518693A (en) | 1921-05-28 |
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