GB190214576A - Manufacture of Substantive Secondary Disazo-dyestuffs from Monoacetyl-para-diamidohydroquinonedialkylether or Amidohydroquinone-dialkylether. - Google Patents
Manufacture of Substantive Secondary Disazo-dyestuffs from Monoacetyl-para-diamidohydroquinonedialkylether or Amidohydroquinone-dialkylether.Info
- Publication number
- GB190214576A GB190214576A GB190214576DA GB190214576A GB 190214576 A GB190214576 A GB 190214576A GB 190214576D A GB190214576D A GB 190214576DA GB 190214576 A GB190214576 A GB 190214576A
- Authority
- GB
- United Kingdom
- Prior art keywords
- naphthol
- combining
- dialkylether
- monoacetyl
- diazotizing
- 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
14,576. Imray, O., [Farbwerke vorm. Meister, Lucius, & Br³ning]. June 30. Dyeing.-Blue to greenish-black polyazo dyes are formed on cotton by diazotizing upon the fibre and developing with the usual agents, such as #-naphthol, m-phenylenediamine, m-toluylenediamine, or resorcinol, the secondary disazo dyes which are produced from a monoacetyl-p-diamidohydroquinone-dialkylether by combining the diazo compound of one of these substances, such as the dimethyl- or diethyl-ether, with alpha-naphthylamine 6-, or 7-, monosulphonic acid, diazotizing the amidoazo compound thus obtained, and combining it with 2-naphthol-6-sulphonic acid, or with 2- amido-8-naphthol-6-sulphonic acid and finally splitting off the acetyl group. Alternatively, the dye may be produced by combining the diazo compound of monacetyl-1: 4-naphtbylenediamine-6- or 7-, monosulphonic acid with 2-naphthol-6-sulphonic acid, eliminating the acetyl group and further diazotizing the product and combining it with amidohydroquinonedialkylether.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB190214576T | 1902-06-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB190214576A true GB190214576A (en) | 1903-05-21 |
Family
ID=32429909
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB190214576D Expired GB190214576A (en) | 1902-06-30 | 1902-06-30 | Manufacture of Substantive Secondary Disazo-dyestuffs from Monoacetyl-para-diamidohydroquinonedialkylether or Amidohydroquinone-dialkylether. |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB190214576A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2612496A (en) * | 1948-04-02 | 1952-09-30 | Gaspar | Acid azo dyes |
US2612448A (en) * | 1948-04-02 | 1952-09-30 | Gaspar | Photographic elements containing azo dyes and process using them |
-
1902
- 1902-06-30 GB GB190214576D patent/GB190214576A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2612496A (en) * | 1948-04-02 | 1952-09-30 | Gaspar | Acid azo dyes |
US2612448A (en) * | 1948-04-02 | 1952-09-30 | Gaspar | Photographic elements containing azo dyes and process using them |
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