| 摘要 |
PURPOSE:To obtain a modified sheep wool containing an acidic substance consisting of a compound of element of IIA group or IIIA group in the fiber and having excellent wool characteristics and light resistance by subjecting the sheet wool to oxidation and reduction treatment and impregnating the above-mentioned acidic substance into the wool. CONSTITUTION:A sheep wool is subjected to oxidation treatment by hydrogen peroxide and reduction treatment by sodium sulfite to extract and remove a material dissolved by internal denaturated and then an acidic substance consisting of a compound of element of IIA group or IIIA group (preferably an ionic compound of the above- mentioned element absorbing a salt or acid component of the above-mentioned element whose aqueous solution exhibits acidity) is impregnated into the wool to provide the modified sheep wool containing the above-mentioned acidic substance at an amount of 0.01-10wt.% as the above-mentioned element based on the sheep wool and almost free from yellowing by light, embrittlement, etc. Furthermore, when a dicyan based polycondensation product is impregnated into the wool together with the above- mentioned acidic substance, a modified sheep wool further improved in light resistance is obtained. |
