| 摘要 |
<p>The commercial, water-free, water-soluble dyeing preparations contain a diazotisable aromatic amine, a coupling component and an alkali metal nitrite. The aromatic amine or the coupling component, or both, have at least one water-solubilising, free acidic group and at least one fibre-reactive group. If the fibre-reactive group contains a water-solubilising, free acidic group, it can also function as that water-solubilising, free acidic group. The preparations are suitable for dyeing and printing fibre materials of natural or synthetic origin.</p> |
