CH222694A - Process for the preparation of a monoazo dye. - Google Patents
Process for the preparation of a monoazo dye.Info
- Publication number
- CH222694A CH222694A CH222694DA CH222694A CH 222694 A CH222694 A CH 222694A CH 222694D A CH222694D A CH 222694DA CH 222694 A CH222694 A CH 222694A
- Authority
- CH
- Switzerland
- Prior art keywords
- red
- amino
- acid
- bluish
- sulfonic acid
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 5
- 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
- 238000002360 preparation method Methods 0.000 title description 2
- 239000002253 acid Substances 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 210000002268 wool Anatomy 0.000 claims description 3
- 230000002378 acidificating effect Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000004043 dyeing Methods 0.000 claims 1
- GOJUJUVQIVIZAV-UHFFFAOYSA-N 2-amino-4,6-dichloropyrimidine-5-carbaldehyde Chemical group NC1=NC(Cl)=C(C=O)C(Cl)=N1 GOJUJUVQIVIZAV-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 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
- 150000001989 diazonium salts Chemical class 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000000725 suspension 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
- C09B29/30—Amino naphtholsulfonic acid
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
Verfahren zur Darstellung eines lVIonoazofarbstoffes. Gegenstand des vorliegenden Zusatzpaten tes ist ein Verfahren zur Herstellung eines Monoazofarbstoffes, welches dadurch gekenn zeichnet ist, dass diazotierte 2-Amino-5-acetyl- amino-4'-methyl-diphenylsulfon - 3'-s ulfonsäure in saurem Medium mit 2-Amino-8-oxynaph- thalin-6-sulfonsäure gekuppelt wird.
Der neue Farbstoff, ein violettrotes Pulver, welches sich in Wasser mit blauroter, in kon zentrierter Schwefelsäure mit trüb roter Farbe löst, liefert auf Wolle aus saurem Bade gleich mässige blaustichig rote Färbungen, die sich durch sehr gute Lichtechtheit auszeichnen.
<I>Beispiel:</I> 38,4 Teile 2-Amino-5-acetylamino-4'-me- thyl-dipherrylsulfon-3'-sulfonsäure werden nach bekannten Methoden indirekt diazotiert. Die Diazoniumverbindung gibt man zu einer kongo sauren Suspension von 24 Teilen 2-Amino-8- oxynaphthalin-6-sulfonsäure und stumpft dar auf die Mineralsäure in üblicher Weise bis zur schwach kongosauren Reaktion ab. Die Kupplung ist in kurzer Zeit beendet.
Man erhält einen Farbstoff, der nach dem Filtrieren und Trocknen ein violettrotes Pulver bildet, das sich in Wasser mit blauroter, in konzen trierter Schwefelsäure mit trüb roter Farbe löst und auf Wolle aus saurem Bade gleich mässige blaustichig rote Färbungen liefert, die sich dureh sehr gute Lichtechtheit auszeichnen.
Process for the preparation of an ionoazo dye. The subject of the present additional patent is a process for the production of a monoazo dye, which is characterized in that diazotized 2-amino-5-acetyl-amino-4'-methyl-diphenylsulfone - 3'-sulfonic acid in an acidic medium with 2-amino -8-oxynaphthalene-6-sulfonic acid is coupled.
The new dye, a violet-red powder, which dissolves in water with a bluish-red color and in concentrated sulfuric acid with a cloudy red color, provides uniform bluish-red colorations on wool from an acid bath, which are characterized by very good lightfastness.
<I> Example: </I> 38.4 parts of 2-amino-5-acetylamino-4'-methyl-dipherrylsulfone-3'-sulfonic acid are diazotized indirectly by known methods. The diazonium compound is added to a Congo acid suspension of 24 parts of 2-amino-8-oxynaphthalene-6-sulfonic acid and blunted to the mineral acid in the usual way until a weak Congo acid reaction. The coupling is completed in a short time.
A dye is obtained which, after filtering and drying, forms a violet-red powder which dissolves in water with bluish-red, in concentrated sulfuric acid with a cloudy red color and gives uniform bluish red colorations on wool from an acid bath, which are very good due to the fact Distinguish lightfastness.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH219931T | 1940-04-26 | ||
| CH222694T | 1940-04-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH222694A true CH222694A (en) | 1942-07-31 |
Family
ID=25726366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH222694D CH222694A (en) | 1940-04-26 | 1940-04-26 | Process for the preparation of a monoazo dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH222694A (en) |
-
1940
- 1940-04-26 CH CH222694D patent/CH222694A/en unknown
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CH222694A (en) | Process for the preparation of a monoazo dye. | |
| CH222695A (en) | Process for the preparation of a monoazo dye. | |
| CH222692A (en) | Process for the preparation of a monoazo dye. | |
| CH222697A (en) | Process for the preparation of a monoazo dye. | |
| CH222693A (en) | Process for the preparation of a monoazo dye. | |
| CH222699A (en) | Process for the preparation of a monoazo dye. | |
| CH222698A (en) | Process for the preparation of a monoazo dye. | |
| CH222691A (en) | Process for the preparation of a monoazo dye. | |
| CH222696A (en) | Process for the preparation of a monoazo dye. | |
| DE463378C (en) | Process for the preparation of disazo dyes | |
| CH200370A (en) | Process for the preparation of a chromable o-oxydisazo dye. | |
| CH189044A (en) | Process for the preparation of a monoazo dye. | |
| CH202743A (en) | Process for the preparation of an azo dye. | |
| CH212794A (en) | Process for the preparation of an azo dye. | |
| CH180582A (en) | Process for the production of a new dye. | |
| CH233353A (en) | Process for the preparation of an o, o'-dioxyazo dye. | |
| CH212792A (en) | Process for the preparation of an azo dye. | |
| CH257028A (en) | Process for the production of a metallizable azo dye. | |
| CH121711A (en) | Process for the preparation of an azo dye. | |
| CH235449A (en) | Process for the preparation of a trisazo dye. | |
| CH187338A (en) | Process for the preparation of an o-oxyazo dye. | |
| CH219931A (en) | Process for the preparation of a monoazo dye. | |
| CH179671A (en) | Process for the preparation of a monoazo dye. | |
| CH217957A (en) | Process for the preparation of a disazo dye. | |
| CH167034A (en) | Process for the production of a new azo dye. |