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Factors influencing the comfort of body armor-fabric weave

by:XinXing     2020-05-11
There are many factors influencing the comfort of bulletproof vests. The bulletproof materials used, fabric structure, protective area and structural design, etc. Last time we explained the first influential factors of bulletproof materials. Today, Anhua police equipment will explain to you The second influencing factor is weave. Different fabric structures have different anti-ballistic properties, and a reasonable arrangement of the fabric structure can greatly improve the performance of body armor, and even achieve the effect of comfort and weight loss. 1. Two-dimensional fabric laminate The plain weave with higher tightness is mostly used, and the leno weave has also been tried. The process is relatively simple. At present, researchers can improve the angle of each composite layer by studying the impact of the composite layer to verify whether its anti-ballistic performance is improved, and provide a scientific theoretical basis for structural improvement. The two-dimensional woven fabric has a soft tissue structure, is comfortable to wear, and improves the comfort of body armor while being highly efficient. 2. Three-dimensional fabric reinforcement On the premise of not weakening the bulletproof capability, the internal fabric of high-strength resin is used to reduce the number of body fabric layers of the body armor. The plasticity of the three-dimensional bulletproof fabric is completely incomparable with the traditional two-dimensional fabric. It can form a bending depth of 55-75mm, which is three times that of the traditional two-dimensional bulletproof fabric. The three-dimensional bulletproof vest provides bulletproof protection while being comfortable to wear, conforms to the female body curve, environmentally friendly and pollution-free, and harmless to the human body. Three, weft-free cloth combination The weft-free cloth is made of high-strength high-modulus polyethylene fiber as the base material, evenly laid by high-tech equipment, so that the fibers are arranged in parallel in one direction, and then impregnated with high-strength elastomer resin and glued with the film, and then through 0 ° / 90 °. Laminated by the double orthogonal composite. Some scholars have arranged ultra-high molecular weight polyethylene and aramid fibers in parallel. During use, the unidirectional tape laminated prepregs are laminated together in different directions and cured. The core material is lightweight, can withstand the huge impact of bullets and knives and can reduce damage to the human body. Relevant experts have optimized the weaving process of bulletproof aramid non-woven fabrics through experimental research, adjusted the composition and solid content of the adhesive for non-woven fabrics, determined the best formula, and improved the anti-ballistic performance of the non-woven fabrics. Changing the process parameters of the weaving equipment reduces the weft-free cloth surface density and achieves the goals of light weight and comfort for body armor products. 4. Weaving process Combining two-dimensional fabric laminate materials, three-dimensional fabric reinforcement materials and weft-free fabrics, designing different combinations, angles and other composite forms is conducive to improving the flexibility of the material, reducing weight, and effectively alleviating the lack of flexibility and thickness of body armor. There is now a new type of weaving method-a multi-axial layup system, which is characterized by arranging each yarn in each layer of the layup structure to a precise position to achieve the maximum strength in a given direction, or in all directions All have the same power. The body armor fabric woven in this way is softer in texture, lighter in weight, and has better ballistic resistance than ordinary woven fabrics.
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