舒弹丝棉精梳混纺纱的生产

探讨舒弹丝棉精梳混纺纱的生产工艺。介绍了舒弹丝的原料性能,以舒弹丝/棉60/40 28 tex精梳混纺纱为例,指出了其生产工艺要点。必须保证纤维混和均匀、混纺比准确;清棉工序降低打手速度;梳棉工序采取弹性针布剥离盖板花;采用三道并条、一道精梳并条;条并卷牵伸倍数不宜过大;粗纱捻系数90;细纱采用赛络紧密纺工艺,以减少毛羽和常发性纱疵;络筒采用小张力及上蜡工艺,最终成纱条干CV值达到12.45%,细节1个/km,粗节18个/km,棉结25个/km。认为:应用舒弹丝棉精梳混纺纱可以拓宽弹力织物的原料范围。     

粘胶/火山岩腈纶/精梳棉/大豆蛋白复合纤维多组分混纺纱的生产实践

为开发环保、舒适、功能性纱线,介绍了线密度为1.0 dtex的火山岩腈纶、大豆蛋白复合纤维、粘胶、新疆棉的特点,探讨了粘胶/火山岩腈纶/精梳棉/大豆蛋白复合纤维赛络紧密纺混纺纱的生产方法。根据4种纤维的性能特点和成纱质量要求,采用将粘胶、火山岩腈纶、大豆蛋白复合纤维混合纺制成预并条,再与精梳棉条进行三道混并条的混合方法,控制混纺比例为粘胶/火山岩腈纶/精梳棉/大豆蛋白复合纤维50/20/20/10。另外,改进了各道工序的技术措施,开清、梳棉工序适当降低运动机件速度,并条工序温度为24～32℃,相对湿度为65%～70%,成功开发出线密度为14.7 tex粘胶/火山岩腈纶/精梳棉/大豆蛋白复合纤维多组分混纺纱。     

精梳牦牛绒棉混纺针织纱工艺研究

探讨精梳牦牛绒棉混纺针织纱的纺制工艺。简述了原色与脱色牦牛绒纤维结构和性能。利用毛纺和棉纺设备相结合的方法,将牦牛绒制成精梳牦牛绒条与精梳棉进行条混。通过各工序关键工艺参数的优选,成功纺制出混纺比为70/30、50/50、30/70的精梳牦牛绒/棉18.22tex赛络集聚针织纱;分析了混纺比对成纱性能的影响;通过切片观察纱线结构,指出牦牛绒纤维更趋向于纱体外围分布,纱体整体呈现牦牛绒包裹棉的结构。认为:随着牦牛绒纤维占比的减少,混纺纱各项性能指标均得到逐步优化。     

甲壳素纤维/Modal/精梳棉混纺针织纱的生产实践

针对甲壳素纤维粗、强力低及Modal纤维抱合力差、与棉混纺成纱性低的特点,为了成功开发出甲壳素纤维/Modal/精梳棉多组分混纺纱线.采用条子混合,各工序采取必要措施,包括增大捻系数、低车速、高相对湿度甲壳素纤维/Modal/精梳棉,详细介绍了甲壳素纤维/Modal/精梳棉混纺纱的纺纱工艺方案和技术措施.     

铜离子抗菌棉/精梳棉混纺纱线的制备及其性能研究

本文对铜离子抗菌棉（康普棉）的结构进行表征,并对抗菌棉与精梳棉混纺成纱的成纱性能及抗菌性能进行研究,结果表明：抗菌整理使棉纤维具有一定丝光效果的外观,抗菌棉/精梳棉混纺纱线的强度随混纺比例增加而略有下降,断裂伸长率略有提高,条干均匀度基本不变,纱线毛羽略有增加。混纺纱线具有良好的抗菌功能性,当抗菌棉含量为30%时,对两种菌种的抑菌率均可达到100%。     

棉石墨烯改性锦纶混纺纱的生产工艺研究

探讨精梳棉/石墨烯改性锦纶60/40 14.8tex赛络集聚纺纱线的纺纱方法。通过优选原料,在开清棉工序混入一定比例的棉纤维,解决了石墨烯改性锦纶成卷困难的问题;通过在预并工序并入一定比例的精梳棉条来调整成纱的混纺比。在保证良好分梳、除杂的同时,尽量减少梳理过程对纤维的损伤,合理优化并条、粗纱工艺流程,细纱采用赛络集聚纺纱方式,加强对牵伸区浮游纤维的控制,计算并调整纺纱工艺参数。经测试,成纱的各项性能指标良好。认为:针对石墨烯改性锦纶的工艺研究可以在棉纺设备上解决混纺纱的生产难点。     

精梳棉羊毛混纺雪花纱的开发

探讨精梳棉羊毛37 tex混纺雪花纱的生产工艺。介绍了精梳棉和羊毛纤维的性能特点和纤维规格,分析了纤维性能对纺纱工艺和成品纱质量的影响。为了纺制具有星点雪花状外观的精梳棉羊毛混纺纱,在混和、梳棉和预并条工序中,分别制得有色预并条和白色预并条,并将5根有色预并条与3根白色预并条进行两道混并条、过粗纱、细纱和络筒工序,最终纺成精梳棉/羊毛70/30 37 tex和精梳棉/羊毛80/20 37 tex两种混纺雪花纱。认为:通过采取相应的工艺和技术措施,使所纺精梳棉羊毛混纺雪花纱产品质量和风格能满足开发要求。     

多组分功能混纺纱的生产实践

探讨了远红外聚酯、木棉以及棉纤维混纺纱的生产工艺及其纱线性能。通过设计纺纱工艺流程与各工序工艺参数,成功纺制出远红外聚酯/木棉/棉60/20/20 18.5 tex混纺纱线,并对纱线的断裂强力、耐磨性能、成纱条干等指标进行测试分析。结果表明,该混纺纱线的力学性能与成纱质量良好,可用于开发保暖抗菌类功能面料,同时进一步提高了木棉纤维的可纺性和利用价值。     

专利

一种精梳棉、竹纤维与羊毛的混纺纱线 该混纺纱线的特征是：采用精梳棉、竹纤维与羊毛混纺制晓其中精梳棉、竹纤维与羊毛的质量分数分别为（40％-60％）、（20％～30％）、（10％。20％2所述竹纤维为棉型或毛型,规格（1．11。2．22）dtex×（3s～51）mm。竹纤维与羊毛、棉按各自的纺纱工艺流程进行加工制成纤维条。再予专门的并条机上混合后经过粗纱、细纱工序最终纺制成纱。     

酷桑丝纤维精梳棉赛络纱的开发

文章以酷桑丝精梳棉混纺14.8 tex赛络纱为例,介绍了酷桑丝纤维的性能特点,并对混纺纱的生产实践进行了分析,探讨了工艺流程设计和开清棉、梳棉、并条、粗纱、细纱各工序的工艺设置及采取的主要技术措施.生产中各工序通过优化配置工艺参数,保证了纺纱的顺利进行,提高了成纱质量.     

A comparative study on properties of dual-core yarns

Core-spun yarns containing Spandex have been widely used for the production of elastic textile materials. However, it has been encountered various problems not only during the usage but also during textile processes due to its high recovery property. In order to solve these problems, multicomponent core-spun yarns called as dual-core (DC) yarns, have been developed. DC yarns can be produced on the modified ring spinning machine in two different ways. In the first method, previously combined two core yarns are fed simultaneously, whereas in the second method, two core yarns are given separately into the centre of sheath fibre bundle. In present study, it was aimed to research the effect of these production methods on yarn features. Polyester and Spandex core components and cotton wrapping fibres were brought together in both two ways and the properties of multicomponent core-spun yarns were compared with cotton ring counterparts for three different yarn counts.     

集棉器对成纱质量影响的研究

探讨在EJM128K型环锭细纱机上集棉器对成纱质量的影响情况。本文分析了集棉器的数学模型,在EJM128K型环锭细纱机上加上不同型号的集棉器分别纺制CJ9.7tex、CJ7.3tex纱,测试纱线的毛羽、强力、条干等各项指标并进行对比分析。结果表明：集棉器对成纱强力和成纱毛羽提高较明显。     

The effect of core-sheath proportion on the characteristics of hollow yarns: part I mechanical properties

In the scope of this study, core yarns in the yarn count of 59 tex were produced by using cotton, viscose, wool, and polyester fibers in the sheath and different ratios of polyvinyl alcohol (PVA) in the core. After completion of yarn production on ring spinning frame, winding process was performed in order to get packages. These yarns in the form of packages were washed during a time period in order to remove PVA from the yarn structures to obtain hollow yarn structure. Yarn irregularity and yarn tensile tests were performed in the form of packages before and after washing process. As a result of these tests; it was observed that values of yarn unevenness and tensile tests were significantly influenced by the core-sheath proportion and washing process.     

Effect of polyester and elastane linear density on the physical and mechanical properties of dual-core-spun cotton yarns

ABSTRACT

The use of single-core elastic spun cotton yarns is well established in textiles and denim industry but interest in the use of dual-core-spun yarns has started to grow only recently. The aim of this study was to investigate the effect of polyester and elastane linear density on the physical and mechanical properties of dual-core-spun cotton yarns. Yarn samples were prepared on industrial-scale spinning machines using cotton as the sheath fibers and two different linear densities of polyester and three different linear densities of elastane filaments in the core. Statistical analysis of the results revealed that yarn tenacity, elongation, uniformity, and hairiness are significantly affected by the linear densities of both the polyester and elastane filaments in the core, with statistically significant interaction between them. Yarn imperfections (IPI), however, are affected mainly by the polyester denier, while the elastane linear density did not show statistically significant effect on the IPI. Regression equations for different yarn properties were also developed which showed fairly high values of coefficient of determination (R-sq).     

Sirofil-竹节复合纱纺纱工艺设计及性能探讨

在改造过的环锭细纱机上将Sirofil纺纱技术与竹节纱纺纱技术相结合，通过对长丝与须条间距、长丝预加张力以及捻系数选用不同水平值，对Sirofil-竹节复合纺纱工艺进行了优化设计，通过工艺优化，改善和提高了纱线的各项性能。     

棉／Viloft／牛奶蛋白／Lyocell多组分喷气涡流纱的开发

文章研制开发了棉／Viloft／牛奶蛋白／Lyocell多组分喷气涡流（MVS）纱和环锭纱,并对两种纱线的强力、毛羽、耐磨等性能进行了测试,结果证明：MVS纱的毛羽指标明显优于环锭纱,尤其是2mm以上的毛羽指数;MVS纱的强度和断裂伸长率要比环锭纱稍低;MVS纱和环锭纱的耐磨性能相近;MVS纱的条干CV值比环锭纱好。     

高支天丝~50/JC50赛络紧密纺针织纱的生产

文章介绍了赛络紧密纺纱线的发展前景,分析了赛络紧密纺纱线特点及赛络紧密纺纱线指标,探讨了原料选配、开清棉工序、梳棉工序、并条工序、粗纱工序、细纱工序及络筒工序的生产措施及控制要点。     

棉/酶水解丝空心纱针织物的性能分析

文章开发了棉/酶水解丝空心纱针织物,测试其织物性能并与普通棉针织物进行对比分析。得出的结论是：空心纱织物的垂直吸水性、平行吸水性、保暖性、透气性均优于普通织物的相应性能,而顶破强力和悬垂性相对要差。     

Influence of fibre strength and yarn structural characteristics on tensile failure of blended spun yarns: a prediction model

The study reports on the static failure behaviour of P/V blended ring, rotor and air-jet spun yarns explained on the basis of fibre failure coefficient. Fibre failure coefficient is an index introduced to represent fibre break and slip in combination occurring during tensile failure. Fibre break/slip during tensile failure is found dependent on fibre strength, fibre cohesiveness and internal structural developments in yarns. Tensile failure behaviour of ring, rotor and air-jet yarns found to be different owing to their difference in fibre consolidation mechanism. The contribution of individual components towards fibre failure coefficient varies with the spinning technology. An attempt has been made to develop mathematical models to explain the spun yarn failure behaviour under static condition. The developed mathematical models have incorporated the fibre property (fibre strength) and few structural characteristics of yarns which are strategically selected to justify the essence of models to enhance the prediction capability. Individual models are developed for ring, rotor and air-jet yarns owing to their structural changes caused by their inherent fibre consolidation mechanism. The developed mathematical models are free from assumptions and based on pure applied mathematics and have very high potential for prediction of spun yarn failure behaviour.     

长丝喂入位置对赛络纺包芯纱结构与性能影响

针对赛络纺包芯纱纺制过程中,长丝不同喂入位置对纱线结构和性能的影响,分别纺制了涤纶长丝在左侧粗纱须条中心、两粗纱须条中间、右侧粗纱须条中心3种结构的短纤/长丝赛络纺包芯纱。对比分析了纱线截面、成纱质量、耐磨性能、拉伸断裂过程和纱线退捻特征。结果表明:3种包芯纱中涤纶长丝均在纱线中心附近,无明显漏丝,条干均匀,毛羽较少;左侧粗纱须条中心喂入纱线拉伸断裂曲线有多峰特征,两粗纱中间喂入纱线拉伸断裂曲线有密集波动特征;右侧粗纱须条中心喂入纱线初始弹性模量最高,拉伸断裂特征为阶梯性断裂,退捻最困难,且在退捻过程中部分纱段被反向加捻,纱线结构最稳定,耐磨性好,纱线强力最高。