Shanghai International Fashion Innovation Centre, Donghua University, Changning District, Shanghai 200051, China.
College of Fashion and Design, Donghua University, Changning District, Shanghai 200051, China.
ACS Appl Mater Interfaces. 2024 Aug 7;16(31):41504-41517. doi: 10.1021/acsami.4c07080. Epub 2024 Jul 29.
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.
用于运动服装的有效排汗面料有助于将汗水从皮肤中排出，并提高人体舒适度。然而，当人体处于强烈的湿热环境或剧烈运动后，排汗面料会很快完全浸湿和饱和。结果，衣服不能有效地吸收多余的汗水，这会导致明显的粘滞感和沉重感。本文采用等离子体预处理技术和网版印刷技术制备了定向导水集水多层针织面料（DWTCF）。为了驱动液体沿着通道流动，设计了受大自然启发的树状导水网络。通过表面改性，制造出支化的亲水流道，其他区域则具有疏水性。作为一个示范，DWTCF 被注入水以观察液体传输行为。在实验中，DWTCF 收集了 76.7%的液体，而普通针织面料仅收集了 0.06%。普通织物的重量增加量比 DWTCF 大 555.4%。具体而言，DWTCF 利用润湿和压力梯度诱导的界面张力以及织物结构中的毛细作用，促进流体沿亲水通道的运动，此外还利用了织物结构中的毛细作用。本研究为开发定向导水集水面料提供了新思路，以解决面料吸湿饱和的问题，特别是对于需要大量出汗的情况。
