| 摘要 |
The flame-resist properties of natural and synthetic polyamide fibres, especially wool and wool blends, are improved by depositing in the fibres an organic chelate or fluoride complex of titanium, preferably to the extent of 0.2 - 2.5% calculated as titanium dioxide. The complexes may be dissolved as such in an aqueous medium and applied by spraying, padding or by exhaustion from a bath. Alternatively the complexes may be formed in situ in the aqueous medium by adding a complexing agent to a water-soluble titanium compound or on the fibre, as by treating with a fluoride solution fibres already treated with a titanium compound, which may itself be a chelate complex. Where the titanium complex is applied from a bath a dye can be applied to the fibres from the same bath, either simultaneously or as a separate step. |
