GB795417A - Improvements in or relating to chromium complex compounds of monoazo pyrazolone dyestuffs - Google Patents
Improvements in or relating to chromium complex compounds of monoazo pyrazolone dyestuffsInfo
- Publication number
- GB795417A GB795417A GB16125/56A GB1612556A GB795417A GB 795417 A GB795417 A GB 795417A GB 16125/56 A GB16125/56 A GB 16125/56A GB 1612556 A GB1612556 A GB 1612556A GB 795417 A GB795417 A GB 795417A
- Authority
- GB
- United Kingdom
- Prior art keywords
- dyestuffs
- relating
- complex compounds
- chromium complex
- coupling
- 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 chromium complexes which contain less than 2 atoms of metal per 2 mols. of dyestuff of formula: <FORM:0795417/IV (b)/1> where X is Cl or Me which are made by treating the dyestuffs obtainable by coupling diazotized 2 - amino - 4 - chloro - or methyl - 6 - nitrophenol with an appropriate pyrazolone, with chromium yielding agents. Coupling is advantageously effected in a weakly alkaline to alkaline medium. Metallization is effected by conventional methods. The dyestuffs dye or colour wool, silk, leather, artificial nitrogenous fibres, cellulose acetate and polyester fibres in bluish-red shades. Examples are provided of the preparation of both dyestuffs and their use in dyeing processes.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH795417X | 1955-06-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB795417A true GB795417A (en) | 1958-05-21 |
Family
ID=4537264
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB16125/56A Expired GB795417A (en) | 1955-06-17 | 1956-05-24 | Improvements in or relating to chromium complex compounds of monoazo pyrazolone dyestuffs |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB795417A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3244724A (en) * | 1961-01-25 | 1966-04-05 | Armour & Co | Sulfoalkylated imidazolines |
-
1956
- 1956-05-24 GB GB16125/56A patent/GB795417A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3244724A (en) * | 1961-01-25 | 1966-04-05 | Armour & Co | Sulfoalkylated imidazolines |
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