Manufacture technique and performance evaluation of electromagnetic-shielding/far-infrared elastic warp-knitted composite fabrics

作者：Lin, Jia-Horng; Huang, Yu-Tien; Li, Ting-Ting; Lin, Chin-Mei; Lou, Ching-Wen^*

来源：Journal of the Textile Institute, 2016, 107(4): 493-503.

DOI：10.1080/00405000.2015.1045253

• EMI shielding
• rubber thread
• stainless steel
• far-infrared emissive
• warp-knitted fabric
• bamboo charcoal

This study purposes to prepare elastic warp-knitted composite fabric which has multifunctions of shielding electromagnetic interference and emitting far-infrared ray, by altering number of rubber threads cycles. Bamboo charcoal/stainless steel wrap yarns were firstly formed via rotor twister machine, and then fabricated into three kinds of elastic warp-knitted composite fabrics using crochet machine beforehand different number of rubber threads was fed in. The mechanical, comfortability, and functional properties of resulting warp-knitted composite fabrics were evaluated afterward. Result shows that the maximum increase of breaking strength and shear strength of resulting elastic warp-knitted composite fabric was 329 and 176% respectively. The optimal far-infrared emissivity of single-layer warp-knitted composite fabric reached up to 0.9 epsilon. Electromagnetic shielding effectiveness (EMSE) was promoted along with laminated layer and plied angle of composite fabrics. When laminated angle was arranged as 0 degrees/90 degrees/0 degrees/90 degrees/0 degrees, EMSE of warp-knitted composite fabric reached 60dB at incident frequency of 1988MHz. The resulting elastic warp-knitted fabrics are applied as health care maternity belts, etc. in the future.

• 出版日期2016-4-2
• 单位中国医科大学; 天津工业大学