GB343164A - Process for the manufacture of azo dyestuffs insoluble in water - Google Patents
Process for the manufacture of azo dyestuffs insoluble in waterInfo
- Publication number
- GB343164A GB343164A GB35020/29A GB3502029A GB343164A GB 343164 A GB343164 A GB 343164A GB 35020/29 A GB35020/29 A GB 35020/29A GB 3502029 A GB3502029 A GB 3502029A GB 343164 A GB343164 A GB 343164A
- Authority
- GB
- United Kingdom
- Prior art keywords
- water
- aminocarbazole
- carbazole
- hydroxy
- carboxylic acid
- 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
Landscapes
- Coloring (AREA)
Abstract
Azo dyes; azo dyes, forming on the material.-Azo dyes insoluble in water are made by coupling a diazo compound of an aromatic amine, diamine or aminoazo compound or of a heterocyclic amine or of a derivative thereof containing no group inducing solubility in water e.g. COOH or SO3H, in substance or on the fibre, with an arylide of carbazole-2-hydroxy-3-carboxylic acid. In an example, cotton is impregnated with the a -naphthalide and developed with diazotized 2-aminocarbazole; a fast brownish bordeaux is obtained. The following components and shades obtained are also specified: the anilide, b -naphthalide, o- and p-anisidide; dianisidine, o-phenetidine-azo-a -naphthylamine, m- and p-nitro-o-anisidine, 9-ethyl-3-aminocarbazole, 2 : 5-dichloraniline, 5-nitro-2-anisidine. Specification 329,353, [Class 15 (ii), Dyeing, Processes &c. for], is referred to. Carbazole-2-hydroxy-3-carboxylic acid arylides are made from carbazole-2-hydroxy-3-carboxylic acid (see Specification 303,901, [Class 2 (iii), Dyes &c.]) and the corresponding amine according to known processes. 9-Ethyl-3-aminocarbazole is made by nitrating 9-ethylcarbazole and reducing.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE343164X | 1928-11-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB343164A true GB343164A (en) | 1931-02-16 |
Family
ID=6244117
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB35020/29A Expired GB343164A (en) | 1928-11-16 | 1929-11-15 | Process for the manufacture of azo dyestuffs insoluble in water |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB343164A (en) |
-
1929
- 1929-11-15 GB GB35020/29A patent/GB343164A/en not_active Expired
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