Abstract:

To investigate flexible, wearable and stab-resistance materials, high-performance 1414-aramid fiber(48.2 tex) and 0.06 mm 304stainless-steel wires were employed to produce stab-resistant fabric by adopting core-spun yarn preparation process, and optimizing the spinning process parameters to obtain optimum yarn twisting number. The mechanical properties of yarns and the stab resistance of fabrics were tested. And the influence of number of laminated layers on stab-resistance performance was investigated by changing the number of laminated layers. The results show that when yarn is wrapped at 200 twists / m, its fracture strength is 77.99 cN/tex, and harmful hairiness index is 90.42, which are suitable for subsequent weaving of fabrics. The knife-stab and spike-stab performance of plain fabrics has positive correlation linear relationship with the laminated layer number of the fabrics. The damage mechanisms between knife-stab and spike-stab are different; and spike stab is caused by yarns slip, and knife-stab results from yarn cutting and fracture.

Key words: aramid/stainless-steel siber core-spun yarn, yarn twisting number, stab-resistant fabric, knife stab, spike stab