Evaluation of Applicability of Clothing according to TPU Hardness of Helical Coil Type Design by FDM 3D Printing 


Vol. 58,  No. 6, pp. 351-360, Dec.  2021
10.12772/TSE.2021.58.351


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  Abstract

FDM is a manufacturing process in which a material is selectively extruded through a nozzle. The FDM method currently has the potential to develop textiles and fashion products because of its easy availability, simple mechanisms, and low initial investment compared to other 3D printing techniques. Among the filaments, which include the seal-type thermoplastic polymers used in the FDM method, thermoplastic polyurethane (TPU) is mainly used in textiles due to its excellent elasticity and wear resistance. Linking, like the woven form of a coil, is a continuous and open structure, and the yarn is woven up and down in the form of a spring such as a coil, which has the advantage of high elasticity during knitting. In this study, textile structures in the form of springs such as coils were woven and output to four types of TPUs with different shore hardness, and the applicability of fibers based on properties such as wrinkle recovery and tensile strength were evaluated. Using these results, TPU filaments suitable for textile structure output were selected. As a result of the study, it was confirmed that the thicker the coil, the better the strength and elongation, and the E-TPU with 87A hardness is suitable as a filament for clothing production.

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