GB762417A - New chromium containing monoazo-pyrazolone dyestuff - Google Patents
New chromium containing monoazo-pyrazolone dyestuffInfo
- Publication number
- GB762417A GB762417A GB1792254A GB1792254A GB762417A GB 762417 A GB762417 A GB 762417A GB 1792254 A GB1792254 A GB 1792254A GB 1792254 A GB1792254 A GB 1792254A GB 762417 A GB762417 A GB 762417A
- Authority
- GB
- United Kingdom
- Prior art keywords
- dyestuff
- wool
- fibres
- pyrazolone
- silk
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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)
- Coloring (AREA)
Abstract
The invention comprises a dyestuff which in its anionic form is of formula:- <PICT:0762417/IV(b)/1> and which may be made by treating the dyestuff obtained by coupling diazotized anthranilic acid with 1- (21-methylphenyl)-3-methyl-5-pyrazolone under weakly acid to alkaline conditions with amounts of chromium yielding agents corresponding to 0.5 to 0.6 atomic proportions of chromium. The starting dyestuff may be made by coupling in an aqueous medium in the presence of excess sodium carbonate. Conventional chroming agents are specified and metallization is preferably effected in an aqueous medium in the presence of solvents such as ethanol, n-butanol, b -ethoxy-ethanol, ethylene glycol, mono-and diethanolamine and pyridine and with the addition of a wetting or a dispersing agent. The dyestuff dyes animal fibres, e.g. wool and silk, synthetic nitrogenous fibres, e.g. those of superpolyamides and superpolyurethanes, and fibres from natural and synthetic proteins. Wool and silk are dyed from neutral or weakly acid dye-baths the former in yellow shades. An example is provided of the preparation of the dyestuff and its use in dyeing wool and nylon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1792254A GB762417A (en) | 1954-06-18 | 1954-06-18 | New chromium containing monoazo-pyrazolone dyestuff |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1792254A GB762417A (en) | 1954-06-18 | 1954-06-18 | New chromium containing monoazo-pyrazolone dyestuff |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB762417A true GB762417A (en) | 1956-11-28 |
Family
ID=10103592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1792254A Expired GB762417A (en) | 1954-06-18 | 1954-06-18 | New chromium containing monoazo-pyrazolone dyestuff |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB762417A (en) |
-
1954
- 1954-06-18 GB GB1792254A patent/GB762417A/en not_active Expired
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