低温氧等离子体—壳聚糖对真丝织物的复合整理

Finishing of silk fabrics with the combination treatment of low-temperature oxygen plasma and chitosan

针对真丝织物易皱、抗菌性能差的问题,采用低温氧等离子体对真丝织物进行预处理,再用壳聚糖、柠檬酸溶液进行二浸二轧抗皱整理。对整理后的真丝织物进行力学性能和白度测试,探讨了有关工艺因素对整理效果的影响,确定了等离子体—壳聚糖对真丝织物抗皱整理的工艺。经整理后真丝织物的抗皱性能有较大提高,折皱回复角可提高50°左右,断裂强力和白度略有下降。结果表明,真丝织物经低温氧等离子体—壳聚糖联合整理后,壳聚糖与真丝纤维发生了接枝,故其折皱回复性能得以提高,纤维的结晶度有所下降。

For the poor wrinkle-resistant and poor antibacterial properties performance, silk fabrics were treated with low-temperature oxygen plasma before coordinated by chitosan-citric acid solution through dou- ble-dip-double-nip. The factors influenced on finishing results were studied and the anti-crease finishing process was obtained. The wrinkle-resistant properties of the finished fabrics were improved greatly and crease recovery angle could be improved more than 50°, while the breaking strength and the whiteness declined slightly. The results showed that the chemical crosslinking reaction occurred between chitosan and silk fiber when silk fabrics were carried out plasma-chitosan compound finishing, so the crease recovery performance was improved, and the crystallinity of the finished silk fabrics slightly decreased.