GB543100A - Manufacture of dyestuffs of the triazole series - Google Patents
Manufacture of dyestuffs of the triazole seriesInfo
- Publication number
- GB543100A GB543100A GB12684/40A GB1268440A GB543100A GB 543100 A GB543100 A GB 543100A GB 12684/40 A GB12684/40 A GB 12684/40A GB 1268440 A GB1268440 A GB 1268440A GB 543100 A GB543100 A GB 543100A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- dyestuff
- nitro
- aminophenol
- brown
- 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
- C09B43/00—Preparation of azo dyes from other azo compounds
- C09B43/06—Preparation of azo dyes from other azo compounds by oxidation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Abstract
543,100. Dyes. SOC. OF CHEMICAL INDUSTRY IN BASLE. Aug. 7, 1940, Nos. 12684 and 12685. Convention dates, July 29, 1939, and June 26, 1940. [Classes 2 (iii) and 15 (ii)] Azo dyes containing the triazole group are obtained by oxidizing to the corresponding triazole a dyestuff of the general formula wherein A represents the residue of an azo dyestuff, B represents the residue of a diazo component, and at least one of the residues A and B carries a salicylic acid grouping on a terminal benzene nucleus. The oxidation may be effected by means of a copper compound, in which case the product may be treated, e.g. with hydrochloric acid or a soluble sulphide, to remove copper combined in complex union. The products are applicable for dyeing and printing animal and vegetable fibres, e.g. cotton, linen, -and regenerated cellulose fibres. In examples, (1) the dyestuff, salicylic acid #benzidine# (acid)-J-acid (alkaline) #4-nitro-2-aminophenol, is oxidized with ammoniacal copper sulphate and the resulting copper complex is boiled with dilute hydrochloric acid to remove the copper; the product dyes cotton from a Glauber salt bath brownish shades becoming red-brown, fast to washing and to light, on after-treatment with copper salts ; the benzidine may be replaced by 4<SP>1</SP> - aminobenzoyl - p - phenylenediamine and the salicylic by o-cresotinic acid ; (2) the dyestuff of (1) with replacement of 4-nitro-2- aminophenol by 4-chloro-6-nitro-2-aminophenol is similarly oxidized ; the product dyes cotton greenish shades becoming a fast brown on after-coppering ; (3) the dyestuff of (1) with replacement of the benzidine by p-phenylenediamine and of the 4-nitro-2-aminophenol by 5-nitro-2-aminophenol is similarly oxidized ; the product dyes cotton brownish shades becoming a fast intense dark brown on after-coppering ; (4) the dyestuff of (1) with replacement of the 4-nitro-2-aminophenol by anthranilic or 5-nitro-2-aminobenzoic acid is similarly oxidized ; the products dye cotton brown-red or brown shades respectively which are made fast by after-coppering : (5) the dyestuff of (1) with replacement of the benzidine by dianisidine is similarly oxidized to obtain a similar product; (6) the dyestuff, 5 - amino - 2 - hydroxybenzoic acid# 2 : 5 - dimethoxyaniline# (alkaline) J-acid (acid) # J - acid (alkaline) #5-nitro-2-aminophenol, is similarly oxidized ; the product dyes cotton grey-blue shades which are made fast by aftercoppering ; (7) the dyestuff, 5-amino-2-hydroxybenzoic acid# 2 : 5-dimethoxyaniline# (alkaline) J-acid (acid) #4-(4<SP>1</SP>-aminobenzoyl)- aminoaniline - 2 - sulphonic acid# salicylic acid, is similarly oxidized ; the product dyes cotton blue-green shades becoming fast and yellower on after-coppering ; (8) the dyestuff, 5-amino- 2-hydroxybenzoic acid# (alkaline) J-acid (acid) #benzidine# salicylic acid, is similarly oxidized ; the product dyes cotton yellow-brown shades becoming a fast brown on aftercoppering. Examples of the dyeing process for cotton are also given. The dyeing processes of Specifications 455,274 and 468,362 are referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH543100X | 1939-07-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB543100A true GB543100A (en) | 1942-02-10 |
Family
ID=4519195
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB12684/40A Expired GB543100A (en) | 1939-07-29 | 1940-08-07 | Manufacture of dyestuffs of the triazole series |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB543100A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2507754A (en) * | 1946-08-02 | 1950-05-16 | Geigy Ag J R | Polyazo dyestuffs |
-
1940
- 1940-08-07 GB GB12684/40A patent/GB543100A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2507754A (en) * | 1946-08-02 | 1950-05-16 | Geigy Ag J R | Polyazo dyestuffs |
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