Atalie Desalegn, Tesinova Pavla, Tadesse Melkie Getnet, Ferede Eyasu, Dulgheriu Ionuț, Loghin Emil
Ethiopian Institute of Textile and Fashion Technology, Bahir Dar University, Bahir Dar 1037, Ethiopia.
Department of Textile Evaluation, Technical University of Liberec, 46117 Liberec, Czech Republic.
Materials (Basel). 2021 Nov 14;14(22):6863. doi: 10.3390/ma14226863.
Consumers expect high-performance functionality from sportswear. To meet athletic and leisure-time activity requirements, further research needs to be carried out. Sportswear layers and their specific thermal qualities, as well as the set and air layer between materials, are all important factors in sports clothing. This research aims to examine the thermal properties of sports fabrics, and how they are affected by structure parameters and maintained with different layers. Three inner and four outer layers of fabric were used to make 12 sets of sportswear in this study. Before the combination of outer and inner layers, thermal properties were measured for each individual layer. Finally, the thermal resistance, thermal conductivity, thermal absorptivity, peak heat flow density ratio, stationary heat flow density, and water vapor permeability of bi-layered sportswear were evaluated and analyzed. The findings show that sportswear made from a 60% cotton/30% polyester/10% elastane inner layer and a 100% polyester outer layer had the maximum thermal resistance of 61.16 (×10 K·m W). This performance was followed by the sample made from a 90% polyester/10% elastane inner layer and a 100% polyester outer layer, and the sample composed of a 100% elastane inner layer and a 100% polyester outer layer, which achieved a thermal resistance value of 60.41 and 59.41 (×10 K·m W), respectively. These results can be explained by the fact that thicker textiles have a higher thermal resistance. This high-thermal-resistance sportswear fabric is appropriate for the winter season. Sportswear with a 90% polyester/10% elastane inner layer had worse water vapor resistance than sportswear with a 60% cotton/30% polyester/10% elastane and a 100% elastane layer. Therefore, these sports clothes have a higher breathability and can provide the wearers with very good comfort. According to the findings, water vapor permeability of bi-layered sportswear is influenced by geometric characteristics and material properties.
消费者期望运动服装具备高性能功能。为满足运动和休闲活动需求，还需开展进一步研究。运动服装的分层及其特定的保暖特性，以及材料之间的固定层和空气层，都是运动服装的重要因素。本研究旨在考察运动面料的热性能，以及它们如何受到结构参数的影响，并在不同分层情况下保持这些性能。本研究使用了三层内层和四层外层织物制作了12套运动服装。在内外层组合之前，对每一层单独的织物进行了热性能测量。最后，对双层运动服装的热阻、热导率、热吸收率、峰值热流密度比、稳态热流密度和水蒸气透过率进行了评估和分析。研究结果表明，由60%棉/30%聚酯纤维/10%氨纶内层和100%聚酯纤维外层制成的运动服装具有最大热阻，为61.16（×10 K·m²/W）。其次是由90%聚酯纤维/10%氨纶内层和100%聚酯纤维外层制成的样品，以及由100%氨纶内层和100%聚酯纤维外层组成的样品，它们的热阻值分别为60.41和59.41（×10 K·m²/W）。这些结果可以用较厚的纺织品具有较高热阻这一事实来解释。这种高热阻运动服装面料适合冬季穿着。与具有60%棉/30%聚酯纤维/10%氨纶层和100%氨纶层的运动服装相比，具有90%聚酯纤维/10%氨纶内层的运动服装的抗水蒸气性能较差。因此，这些运动服装具有更高的透气性，能为穿着者提供非常好的舒适度。根据研究结果，双层运动服装的水蒸气透过率受几何特征和材料性能的影响。
