GB820489A - New mixed chromium complexes of monoazo dyestuffs and process for their manufacture - Google Patents
New mixed chromium complexes of monoazo dyestuffs and process for their manufactureInfo
- Publication number
- GB820489A GB820489A GB34633/55A GB3463355A GB820489A GB 820489 A GB820489 A GB 820489A GB 34633/55 A GB34633/55 A GB 34633/55A GB 3463355 A GB3463355 A GB 3463355A GB 820489 A GB820489 A GB 820489A
- Authority
- GB
- United Kingdom
- Prior art keywords
- methyl
- nitro
- chloro
- aminophenol
- dyestuffs
- 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 mixed chromium complexes containing one atom of metal bound in complex union with two different monoazodyestuffs free from sulphonic acid groups, of which one is of formula <FORM:0820489/IV(c)/1> in which the benzene and/or naphthalene nucleus may contain substituents incapable of imparting water-solubility. Advantageously the second dyestuff is an o,o1-dioxy- or o-carboxy-o1-oxymonoazo-dyestuff free of sulphonic or carboxylic acid groups (except that required for metallization). Substituents for compounds of the above formula may be nitro, alkyl and alkoxy groups and halogen atoms. The above second dyestuffs may contain halogen, alkyl, alkoxy, nitro, acylamino, sulphone amino and substituted amino substituents. Specified or indicated azo components for the second dyestuff are 4-methyl-, -methoxy- and -chloro-, 4,6-dichloro-and -dinitro-, 4-methyl- and -chloro-5- and -6-nitro-, 4-nitro-6-chloro-, 6-nitro-4-acetylamino-, 4-nitro-6-acetylamino- and 4-, 5- and 6-nitro-2-aminophenols, 2-aminophenol-4- and -5-sulphonamides, 6-nitro- and -chloro-2-aminophenol - 4 - sulphonamides, 4 - chloro - 2 - aminophenol - 5 - sulphonamide, 4 - nitro - 2 - aminophenol - 6 - sulphonamide and the N-alkyl- and -aryl-derivatives of the sulphonamides, 2 - aminophenol - 4 - and - 5 - methyl-, -phenyl- and - benzyl-sulphones and 4-chloro-2-aminophenol-5- and -6- and 6-nitro-2-aminophenol - 4 - methyl - sulphones. Specified and indicated coupling components for the second dyestuff are 4-methyl-, -isopropyl-, -tert.-amyl-, 2,4- and 3,4-dimethyl-, 4-acetylamino-3-methyl-, 4-methyl-2-acetylamino and 4-acetylamino-1-phenols, 1-benzoyl, -acetyl-, -n-butyryl- and carbomethoxy-amino-7-naphthols, 2-naphthol, 6-bromo- and methoxy-2-naphthols, 5-chloro- and 5,8-dichloro-1-naphthols, 1-naphthol-4- and -5-sulphonamides, 2-naphthol-6-sulphonamide and its -N-methyl-N-b -oxyethyl-derivative, barbituric acids, 1-phenyl-3-methyl-5-pyrazolone and its 21-, 31- and 41-chloro-, 31-sulphonamido- and 31- and 41-sulphonmethylamido - derivatives, 1,3 - diphenyl - 5 - pyrazolone, 2,4-dioxyquinoline, 5-chloro-8-oxyquinoline, acetoacetic acid anilide and o-, m- and p-chloranilides, 1-acetoacetylaminobenzene-3- and -4-sulphon- and -sulphonmethyl-amides and -2-, -3- and -4-methyl-sulphones. Advantageously the mixture to be metallized contains about 1 mol. proportion of each of two different dyestuffs. Chroming is preferably effected with a chromium complex of an o-oxy-carboxylic acid in a neutral or aqueous medium, see Specification 637,404. The dyestuffs may also be made by treating metal-free dyestuffs in neutral or weakly alkaline solution with 1,1-chromium complexes of dyestuffs the starting materials being so chosen as to yield the products indicated above. Preferably the metal-free dyestuff is of the above formula. The dyestuffs dye materials of animal origin such as silk, leather and wool and fibres of superpoly-amides or -urethanes from a weakly alkaline to weakly acid bath. In examples which illustrate the preparation of the dyestuffs and their use in dyeing wool in grey and brown shades 2-naphthol and 2-amino-benzoic acid and its 4-chloro- and -nitro-derivatives are the reactants used for the first dyestuff and for the second additional components used to those already specified are 2-aminobenzoic acid, 2-aminophenol - 4 - sulphon - methyl - and - isopropyl - amides and 1 - (41 - methyl) - phenyl - 3 - methyl-5-pyrazolone. Specification 758,016 also is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH820489X | 1954-12-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB820489A true GB820489A (en) | 1959-09-23 |
Family
ID=4539389
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB34633/55A Expired GB820489A (en) | 1954-12-02 | 1955-12-02 | New mixed chromium complexes of monoazo dyestuffs and process for their manufacture |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB820489A (en) |
-
1955
- 1955-12-02 GB GB34633/55A patent/GB820489A/en not_active Expired
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