共查询到20条相似文献,搜索用时 359 毫秒
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针对并捻复合纱线生产过程中产生扭结疵点严重的问题,分析了整经工序筒纱退绕过程中的受力情况,对整经工序的导纱张力进行了调整,在不具备定形设备的生产条件下,成功地开发出了长丝与短纤纱并捻复合纱线织物. 相似文献
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涤棉复合纱线采用涤轮长丝和棉单纱复合加工而成,是一种生产细号轻薄型面料的优良纱线。复合纱线中各组分性能的差异对复合纱线与织物的性能将产生极大的影响。在复合纱线反向加捻的情况下,通过试验分析了复合纱线断裂强力、断裂伸长率与单纱捻度、复合纱线捻度之间的关系。复合纱线也存在着临界捻系数,复合纱线断裂伸长率与复合纱线捻系数呈正线性相关,复合纱线断裂强力、断裂伸长率与单纱捻系数呈正线性相关。 相似文献
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以可生物降解的聚乳酸长丝为原料,经并捻、热定形加工制备了聚乳酸并捻长丝纱,优化并捻工艺和热定形工艺,并对纱线的结构和性能进行了测试分析。结果表明:并捻工序的最优捻度为300捻/m,聚乳酸并捻长丝纱比原丝断裂强度降低,断裂伸长率增大,且随捻度的增大,纱线的断裂强度逐渐降低,断裂伸长率升高;热定形工序的最佳热定形温度为80℃,热定形时间为1 h;聚乳酸并捻长丝纱表面光洁,光泽好,纱为股线结构,比原丝束断裂强度下降9.7%,断裂伸长率提高7.6%。聚乳酸并捻长丝纱提高了长丝纱的集束性、耐磨性,利于以后的织造工艺。 相似文献
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为了从织物表面提取或测量纱线捻回角,提出一种无损、原位的利用织物图像测量方法。该法基于Radon变换的方法和特点,可对织物中的纱线表层纤维图像进行多角度Radon变换,从而得到纤维取向的投影积分值的矩阵,依据峰值的角度位置坐标对应着纤维主体条纹的取向,准确分析出纱线的捻向,定量表示织物中纱线的捻回角度数。对比了实测3种织物的纤维取向角与人工测量的结果,以证实用该法表示织物小样品或不宜拆纱的织物纱线加捻特征的可行性、有效性及应用潜力。 相似文献
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竹炭/铜基抗菌细旦长丝具优良的抗菌、除臭等功能。选用8.33tex/72f竹炭/铜基抗菌细旦长丝和8.33tex/24f常规涤纶长丝,分别制备了纬平针织物和双罗纹织物,测试并比较了其服用性能。试验结果显示:竹炭/铜基抗菌细旦长丝的断裂强力和针织物顶破强力较常规涤纶长丝和针织物低,但其延伸性较好,且竹炭/铜基抗菌细旦长丝针织物具有更好的透气性、抗起毛起球性、抗折皱性和芯吸性能。 相似文献
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研究分析了3种用Dref3摩擦纺多组分纬纱织造的平纹织物的风格特征。3种不同的纬纱是:芯皮均为粘纤;水溶性PVA作皮,粘胶无捻纱条作芯;PVA无捻纱条作芯,粘纤作皮。3种纱均在Dref3型摩擦纺机上按芯皮50/50比例纺成,经纱统一采用2合股纯棉纱线。将3种纱分别织成织物,然后用热水将PVA溶解去除。织物性能的测定结果:织物性能与组成织物的纱组分性能并不一致。无捻芯纱(溶掉PVA表皮)织物具有较高的拉伸强力、撕裂强力、折皱回复性和耐磨性;而空心纱(溶掉PVA作芯)织物具有丰满、蓬松的结构和良好的耐压缩性能。 相似文献
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从防辐射性能及影响针织物性能的主要参数入手,通过对毛与不同直径的金属丝包缠纺纱线、不同组织结构、不同密度针织物进行屏蔽性能测试,得出由不同工艺组合形成的针织物在不同微波环境条件下防辐射性能的效果。初步分析了影响毛金属丝包缠纱针织物屏蔽效能的因素,有利于设计与开发防电磁辐射毛针织物及产品的工艺优化,达到满足人们对毛针织品时尚、功能性的需求。 相似文献
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Puttipong Patumchat 《纺织学会志》2019,110(1):50-60
This paper presents a new computer geometric modeling approach for three-dimensional woven fabric structures. Pierce’s geometry of the weave fabric of yarn from an arc abscissa (Peirce’s) model is presented. Then, new algorithms with a filament assembly model for a single yarn composed of many filaments by twisting along the crimp shape in the warp/weft is developed. The concept of a virtual location is used to simulate the fiber distributions in the yarn cross-section. Each cross-section is rotated along the yarn length by a pre-determined amount to allow for the yarn twist. The curve of each filament in each two successive cross-sections is approximated by NURBS and then each curve is created by sweeping a closed curve along the centerline of the yarn path. The method described is demonstrated by the CAD model of woven fabrics with plain and twill weaves. The simulated woven fabrics using this approach can demonstrate a wider variety and improved visual simulations of real woven fabric and can then be further generalized for different and more complicated fabrics. The method is necessary as an input to many computational models, such as modeling the mechanical properties or the heat transfer of fabrics or composite parts. 相似文献
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为研究聚酯(PET)长丝/棉复合纱斜纹织物的保形性及服用性能,利用PET长丝与纯棉纱开发了3种线密度为9.8 tex的纱线,并以二上二下斜纹组织织造了4种织物。对织物进行了折皱回复性、免烫性、尺寸稳定性、悬垂性等保形性能,强伸性、拉伸弹性、顶破性等抗变形性测试,以及手感风格、透湿性、透气性等服用性能测试。对比分析了纯棉纱织物与复合纱织物的保形性与服用性能。结果表明:PET长丝/棉复合纱可改善纯棉织物的折皱回复性、悬垂性,提高免烫等级,同时又不影响织物的服用性能;包芯纱织物比包缠纱织物有更好的保形性,更高的免烫等级,是免烫衬衫面料的理想选择。 相似文献
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The use of hollow/microporous yarns plays an important role in enhancing the thermo‐physiological comfort properties of fabrics. Depending on structural variations in hollow yarn, heat and moisture regulation behaviours of fabrics can be affected significantly. In this study, three types of hollow cotton yarn fabrics, produced by introducing polyvinyl alcohol (PVA) filament in the core, PVA staple fibres in the blend and PVA filament in doubling with cotton spun yarn, are studied. All three types of pre‐hollow yarns and reference yarns are made with a variation in spinning technique (single roving/double roving) to prepare eight single jersey knitted fabrics. The hollow/microporous structure of the yarn is created by dissolving the PVA fibres using hot washing of the fabrics. On overall evaluation of the fabric’s thermo‐physiological comfort properties, the doubled hollow yarn fabrics are found to be better than other fabrics. In general, thermal resistance, thermal absorptivity, wicking and drying properties of all types of hollow yarn fabrics increase after repeated laundering, while air permeability, water vapour permeability and water absorbency of hollow yarn fabrics mostly decrease. In contrast with fabrics made from yarn produced through single roving technique, use of double roving technique only improves fabric water vapour permeability. 相似文献
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本文旨在通过两种加工方式研制成抗电磁辐射精纺面料,一种是镀银长丝与羊毛单纱并捻合股织造成并捻织物,一种是镀银长丝直接用作经纬纱与羊毛交织成交织物。由织物的屏蔽效能测试结果可知,并捻织物电磁屏蔽效能在2250-2650MHz波段内优于交织物,最高可达85dB,具有较好的抗电磁辐射效果。另外,经纬密度的变化对织物电磁屏蔽能力也有一定影响,两种织物紧度在78%左右、交织物羊毛与长丝比例为1:2时电磁屏蔽效果较好。其结果对开发高性能抗电磁辐射精纺面料有一定的指导意义。 相似文献