Development of Blended Yarn Based on Polyimide Fiber for Military Triangular Bandage
In order to improve the performance of military triangular bandage,polyimide fiber is pretreated with antistatic agent and the blended yarn process is designed.The blended yarn with 30％,40％and 50％polyimide fiber and number of 18.4 tex are successfully spun by tak-ing polyimide fiber and new-richcel fiber as raw materials.The strength,hairiness and uneven-ness of the blended yarn are tested and analyzed.The optimal blended proportion yarn is evalu-ated by fuzzy comprehensive evaluation method,the sample is tired to weave,and indexes are tested.It is pointed out that when the content of polyimide fiber increases,the strength and e-longation of the blended yarn enhance,and the hairiness and evenness properties deteriorate gradually.Polyimide fiber has high specific resistance and low moisture regain,so it needs anti-static pretreatment during spinning.Yarn with 50/50 blending ratio of polyimide fiber/new-richcel fiber has the best comprehensive performance,and the triangular bandage produced meets the requirements of YY/T 1467-2016 standard,and has hemostatic and antibacterial properties.
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