羊毛拉伸细化加工的试验效果

Investigation of slenderizing of wool by stretching

针对羊毛拉伸细化技术在工业化生产中细化效果不显著和细化毛纤维性能不稳定问题,利用自行设计的模拟工业化加工设备,对64支国毛进行连续化拉伸细化加工,测试了细化毛纤维的细度、长度、强伸性能等,并与国外细化毛Optim○R的性能进行比较,以检验拉伸细化的效果。试验结果表明:细化毛纤维的平均细度下降了16.1%,豪特平均长度和巴布平均长度均提高了26.4%左右,平均强度提高了23.49%,表明该拉伸细化工艺已达到预期的效果;拉伸细化显著降低了纤维的断裂伸长率,纤维的弹性变差。

Slenderizing of wool by stretching is a novel technique, in its commercial application, however, there exist some problems such as the slenderizing effect can not live up to the expectation and the property of the slenderized wool is unstable. Therefore, we develop a laboratorial stretching apparatus on which simulation of commercial production of continuous stretching slenderizing of the 64s local wool was carded out. Then the physical properties such as the fineness, length, strength and elongation of the slenderized wool were tested and compared with those of Optim . The results showed that the average fineness of the slenderized wool fibers decreased by 16.1%, the length increased by 26.4%, and the tenacity of fiber increased by 23.49%. This demonstrates that this stretching slenderizing process is satisfactory. In addition, the elongation rate at break of the slenderized wool is lowered remarkably, and its elasticity is also decreased.