Abstract: Origami art originated in China, and was then introduced to Japan and to the world. With the development of research on origami structure and textile technology, the foldable fabric based on origami structure has been derived from the combination of the two technologies, which makes the application and innovation of origami structure in the textile field possible. Miura-ori structure is the most classic origami folding structure and the most widely used folding structure. It can fold two-dimensional plane materials into three-dimensional shapes by origami. As an emerging metamaterial structure, the Miura-ori structure has attracted many scholars to study it.
To further develop fabrics with geometric effects and functionality, the Miura-ori structure woven fabrics were prepared by combining the origami structure with the fabric structure, and their mechanical properties and thermal-moisture properties were studied and analyzed. Origami fabrics mainly form many folded and crossed folds through folding and lapping, which are usually quite complex and unique. Origami fabrics usually adopt accurate calculation and design to form a fixed folding line and angle. Origami fabrics are usually stable, because the intersection of wrinkles increases the strength and durability of the fabric. The SGA598-D multi-axis automatic jacquard loom was used to weave the woven fabrics. Miura-ori structural fabrics were designed with the help of fabric design software CAD View60. Four kinds of Miura-ori structure fabrics were prepared by changing the warp parameters and the angle α of the Miura-ori structure side length, and the effects of different parameters on the properties of the fabrics were demonstrated. 16.67 tex and 27.78 tex white PET were used as warp yarns, 16.67 tex black PET was used as inelastic weft yarn, and the composite yarn formed by 16.67 tex black PET and 7.78 tex white PU was used as elastic weft yarn, and four kinds of Miura-ori structure woven fabrics Y45, X30, X45 and X60 were prepared by changing the Miura-ori structure angle, which was set to 30°, 45° and 60° respectively. The compression performance test, bending performance test, air permeability test and moisture permeability test of the four Miura-ori structure fabrics were carried out. The results showed that when the Miura-ori structure angle was 45°, the shape retention and the air permeability were better. When the structure angle was the same, the stiffness, air permeability and moisture permeability of the fabric with high-warp yarn density were better. Miura-ori structure fabrics were compressed first by the destruction of the structure, and then by the compression of fabrics themselves. The bending properties of the front and back sides of Miura-ori structure fabrics were quite different, and the front stiffness of Miura-ori structure fabrics was greater.
In this paper, based on origami folding structure, Miura-ori structure was applied to textiles structure and Miura-ori structure fabrics were prepared to study their mechanical and thermal-moisture properties. The study of origami fabrics can provide a new way for the development of materials with specific functions, which is of great significance for the development of new textile materials and processes, and promotes technological innovation in the field of textile and materials science.

Key words: origami structure, Miura-ori, woven fabric, mechanical properties, thermal-moisture properties

摘要： 为了开发具有立体几何效果和功能性的织物，将折纸结构应用于织物组织结构，设计并制备了Miura-ori结构机织物。通过改变经纱参数和Miura-ori结构边长所夹角度α，制备了4种不同的Miura-ori结构机织物，论证了不同参数对织物力学性能和热湿性能的影响。结果表明：Miura-ori结构角度为45°时，织物的保形性和透气效果最好；当结构角度相同时，高经纱线密度织物的硬挺度、透气性能、透湿性能优于低经纱线密度织物。Miura-ori结构机织物的研究可为开发新的纺织材料和工艺提供参考。

关键词: 折纸结构, Miura-ori, 机织物, 力学性能, 热湿性能