| 摘要 |
<p>A water-soluble dye comprising molecules which contain a nucleophilic group and an electrophilic group characterised in that (i) the molecules are capable of joining together by formation of a covalent bond between the nucleophilic group of one molecule and the electrophilic group of another molecule and when the dye is heated or basified; and (ii) the nucleophilic group is a thiophenol, a protected alkylthiol or a protected thiophenol.</p> |
