GB189812119A - Manufacture of Sulphonic Acids of the Naphthalene Series, and of Colouring Matters therefrom. - Google Patents
Manufacture of Sulphonic Acids of the Naphthalene Series, and of Colouring Matters therefrom.Info
- Publication number
- GB189812119A GB189812119A GB189812119DA GB189812119A GB 189812119 A GB189812119 A GB 189812119A GB 189812119D A GB189812119D A GB 189812119DA GB 189812119 A GB189812119 A GB 189812119A
- Authority
- GB
- United Kingdom
- Prior art keywords
- dyes
- sulphonic acid
- sulphonic
- produced
- acids
- 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
Abstract
12,119. Levinstein, I., Herz, R., and Levinstein (Limited). May 28. alpha1alpha2-Naphthylenediamine-#3 (#4)-sulphonic acid is produced by reducing the azo colouring-matters resulting from the combination of a diazo compound, such as diazobenzene, with alpha1-naphthylamine-#3 or #4-sulphonic acid, or the mixture of the two obtained from #-naphthalene sulphonic acid. Monoacetyl -alpha1alpha2- naphthylenediamine-#3 (#4)-sulphonic acid is produced either by acetylating the foregoing diamine sulphonic acid, or by acetylating the azo dyes referred to above and then reducing them.] Dyes, artificial.-Azo dyes are produced by diazotizing acetylnaphthylenediamine sulphonic acid and combining it with amines, diamines, phenols, amidophenols, or oxyphenols of the benzene or naphthalene series, or sulphonic or carboxylic acids thereof. The most valuable combinations are those prepared from p-xylidine, monoacetyl- or monooxalyl-m-phenylenediamine or -m-tolylenediamine, amidocresol ether, alpha-naphthylamine, alpha1-naphthylamine-#3 or #4-sulphonic acid, amidonaphthol ether, or amidonaphthol sulphonic acid-gamma. These acetylamidoazo dyes are rediazotized and combined with naphthol sulphonic acids, dioxynaphthalene sulphonic acids, amidonaphthol sulphonic acids, and the like, whereby dyes are obtained which yield blue to black shades on animal and vegetable fibres. When saponified with caustic soda these dyes possess a greater intensity and a stronger affinity for vegetable fibres, and they may be diazotized upon the fibre and developed with dye-stuff components. The Provisional Specification relates also to the production of azo dyes by diazotizing alpha1alpha4- naphthylenediamine-#3 (or #4)-sulphonic acid and combining the amidodiazo compound with dye-stuff components. The amidoazo dyes thus formed are further diazotized and combined with dye-stuff components, whereby blue to black dyes for unmordanted cotton are produced.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB189812119T | 1898-05-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB189812119A true GB189812119A (en) | 1899-02-25 |
Family
ID=32416091
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB189812119D Expired GB189812119A (en) | 1898-05-28 | 1898-05-28 | Manufacture of Sulphonic Acids of the Naphthalene Series, and of Colouring Matters therefrom. |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB189812119A (en) |
-
1898
- 1898-05-28 GB GB189812119D patent/GB189812119A/en not_active Expired
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