单向导湿机织物的设计及其性能研究

Study on design and performance of unidirectional woven fabric with moisture conduction function

为从结构设计的角度开发具有单向导湿功能的机织物,文章选用黏胶纤维和蜂窝微孔涤纶纤维为原料,通过改变纤维原料在织物厚度方向上的排列方式,使织物内外两层呈现不同的吸湿效应,测试并分析织物两层的含水量变化、浸湿时间、吸水速率、液态水分扩散速度、最大浸湿半径及单向传递指数,进一步分析水分在织物中的传递机理。结果表明:水分在织物中传递和吸湿扩散具有选择性和方向性;疏水内层作为贴肤面在润湿梯度效应下能单向将人体汗液排出,且能隔绝外界水分;织物内外两层亲疏水性能差异越大,单向导湿性能越好。

In order to develop woven fabrics with unidirectional moisture conduction function from the perspective of structural design,viscose fiber and honeycomb microporous polyester fiber were used as raw materials.By changing the arrangement of fiber materials in the thickness direction of the fabric,the inner and outer layers of the fabric presented different moisture absorption effects.The moisture content change,wetting time,water absorption rate,liquid water diffusion rate,maximum wetting radius and unidirectional transfer index of the two layers of the fabric were tested and analyzed,and the moisture transfer mechanism in the fabric was further analyzed.The results show that,moisture transfer and moisture absorption diffusion in the fabric were selective and directional.The hydrophobic inner layer as the skin surface could discharge human sweat in one direction under the wetting gradient effect,and isolate the external moisture.The greater the difference in hydrophilic and hydrophobic properties between the inner and outer layers,the better the unidirectional moisture conduction property.