Analysis of Liquid Transport Performance of Cotton Knitted Fabric Made by the TransDry Technology

In order to improve a competitiveness of cotton in textile market, an innovative TransDry® technology has been developed. The aim of the work was to investigate the liquid moisture transport in cotton knitted fabrics: standard and made using TransDry® technology. The measurement has been performed using Moisture Management Tester. Additionally, fabrics have been measured in the range of water-vapor permeability and thermal insulation using Permetest and Alambeta. Results showed that both calculated parameters: R – accumulative one-way transport index and OMMC – overall moisture management capacity do not reflect the advantages of the TransDry® technology. The advantages of TransDry® technology have been demonstrated in values of the following parameters: WTT – wetting time for top surface, MWRB – maximum wetted radius for the bottom surface, SST and SSB – spreading speed on both sides of fabric. Results showed that only an in-depth analysis of results of individual parameters and graphs from the MMT software allowed for a detailed examination of movement of liquid moisture in tested fabrics and demonstration of the advantages of TransDry® technology. It has been also concluded that the changes of the structure of knitted fabrics cause the changes of moisture transport properties of the fabrics.

为提升棉纺织品在纺织市场的竞争力，科研人员开发了创新性的TransDry®技术。本研究旨在探究两类棉针织物的液态水分传输特性：常规棉针织物与采用TransDry®技术制备的棉针织物。上述液态水分传输特性的测试采用水分管理测试仪（Moisture Management Tester）完成。此外，研究人员还借助Permetest与Alambeta设备，分别测试了受试织物的透湿性能与隔热性能。测试结果显示，两项计算得到的参数——累积单向传输指数（R）与总水分管理能力（OMMC）——均无法体现TransDry®技术的性能优势。而TransDry®技术的性能优势可通过以下参数的测试值得以验证：织物表面润湿时间（WTT）、底面最大润湿半径（MWRB），以及织物两面的扩散速率（SST与SSB）。研究结果表明，唯有结合MMT软件输出的各单项参数结果与配套图表进行深度分析，方能细致考察液态水分在受试织物内部的传输过程，并充分证实TransDry®技术的性能优势。本研究同时证实，针织物的结构变化会引发其水分传输性能的改变。