Abstract：
Effective sweat management fabric for sportswear facilitates sweat removal from the skin and elevates the comfort for human. However, when the body is in a strong hot and humid environment or after strenuous exercise, the sweat management fabric will be totally wetted and saturated quickly. As a result, excess sweat cannot be absorbed effectively by the garment, which creates obvious stickiness and heaviness. In this paper, a directional water transport and collection multilayered knitted fabric (DWTCF) is prepared by plasma pretreatment technology and screen coating. The treelike water transport network inspired from nature is designed in order to drive the liquid flow along the channels. By surface modification, branched hydrophilic flow paths are fabricated, and other regions are hydrophobic. As a demonstration, DWTCF has been injected with water to observe the liquid transport behavior. During the experiment, 76.7% liquid is collected by DWTCF, but there is just 0.06% collected by an ordinary knitted fabric. The weight increase of the ordinary fabric is 555.4% larger than that of DWTCF. Specifically, DWTCF utilizes the wetting and pressure-gradient-induced interfacial tension as well as the gravitational effect to facilitate the fluid motion along the hydrophilic channel, in addition to the capillarity present in the fabric structure. This study provides a new idea to develop directional water transport and collection fabric to solve the moisture absorption saturation problem of the fabric, especially for conditions requiring intense sweating.
摘要：
用于运动服的有效的汗液管理织物有助于从皮肤上去除汗液并提高人类的舒适度。然而,当身体处于强烈的湿热环境或剧烈运动后，汗液管理织物将被完全润湿并迅速饱和。因此,多余的汗水不能被衣服有效吸收，这产生了明显的粘性和沉重。在本文中,通过等离子预处理技术和丝网涂层制备了定向输水和收集多层针织物（DWTCF）。灵感来自自然的树状输水网络的设计是为了驱动液体沿通道流动。通过表面改性，制造分支亲水流路，和其他区域是疏水性的。作为一个示范,已向DWTCF注入水以观察液体输送行为。在实验过程中,76.7％的液体通过DWTCF收集，但是普通针织物只收集了0.06%。普通织物的重量增加比DWTCF大555.4%。具体来说,DWTCF利用润湿和压力梯度诱导的界面张力以及重力效应来促进流体沿亲水通道的运动。除了在织物结构中存在的毛细管作用。本研究为开发定向输水收集织物解决织物吸湿饱和问题提供了新思路,特别是对于需要大量出汗的情况。
