Jamshaid Hafsa, Mishra Rajesh Kumar, Ahmad Naseer, Nadeem Muhammad, Muller Miroslav, Kolar Viktor
Faculty of Textile Engineering, National Textile University, Faisalabad 37610, Pakistan.
Department of Material Science and Manufacturing Technology, Faculty of Engineering, Czech University of Life Sciences Prague, Kamycka 129, 165 00 Prague, Czech Republic.
Polymers (Basel). 2022 May 17;14(10):2045. doi: 10.3390/polym14102045.
This paper focuses on the comfort properties of graduated and preventive compression stockings for people who work long hours in standing postures and for athletes for proper blood circulation. The present study was conducted in order to investigate the effects of the yarn insertion density and inlaid stitches on the performance of the compression stockings. The effects of these parameters on the thermo-physiological comfort properties were tested with standard and developed methods of testing. All compression stockings were maintained with class 1 pressure as per German standards. The structural parameters of the knitted fabric structures were investigated. The stretching and recovery properties were also investigated to determine the performance properties. The theoretical pressure was predicated using the Laplace's law by testing the stockings' tensile properties. The compression interface pressures of all stockings were also investigated using a medical stocking tester (MST) from Salzmann AG, St. Gallen, Switzerland. Correlation between the theoretical pressures and pressures measured using the MST system were also assessed. The current research used a multi-response optimization technique, i.e., principal component analysis (PCA), to identify the best structure based on the optimalization of the above-mentioned properties. The results also revealed that samples with higher insertion density levels exhibit better comfort properties. The results showed that sample R1 was the best sample, followed by R2 and P. In addition, all developed stocking samples exhibited better comfort properties than the control sample from the market.
本文聚焦于为长时间站立工作的人群以及运动员设计的渐进式和预防性压力袜的舒适性能，以促进血液循环。本研究旨在调查纱线插入密度和镶嵌针迹对压力袜性能的影响。通过标准和改进的测试方法，测试了这些参数对热生理舒适性能的影响。所有压力袜均按照德国标准保持1级压力。研究了针织物结构的结构参数。还研究了拉伸和回复性能以确定其性能特性。通过测试袜子的拉伸性能，利用拉普拉斯定律预测理论压力。还使用瑞士圣加仑的萨尔兹曼股份公司生产的医用袜子测试仪（MST）研究了所有袜子的压缩界面压力。还评估了理论压力与使用MST系统测量的压力之间的相关性。当前研究使用了多响应优化技术，即主成分分析（PCA），以基于上述性能的优化确定最佳结构。结果还表明，插入密度较高的样品表现出更好的舒适性能。结果表明，样品R1是最佳样品，其次是R2和P。此外，所有研发的袜子样品都比市场上的对照样品表现出更好的舒适性能。
