大麻纱线的碱改性柔软整理

Alkali modification and softening finish of hemp yarn

针对大麻纱在针织机上生产时存在编织成圈困难的问题,提出了对大麻纱线进行柔软处理以提高其可编织性的方法。用氢氧化钠对大麻纱线进行改性,结合柔软剂进行柔软处理的方法降低大麻纱线的刚性,并采用正交试验的方法,确定了碱改性的最佳工艺:碱液质量浓度100g/L,温度20℃,浸渍时间15min,浴比1∶20。结合柔软剂整理可明显降低大麻纱线刚性,提高纯大麻纱线的上机编织效果。

The soft hemp yarn processing was studies to enhance their weave performance.Alkali modification together with treatment of caustic soda and softener was used for reducing the stiffness of hemp yarn.The result indicates that the best technological conditions were: alkali concentration 100 g/L,temperature 20 ℃,soaking time is 15 min,liquor ratio 1∶20.The treatment with softening agent can obviously reduce the stiffness of hemp yarn and improve its knitting performance.