在棉纺设备上开发Sirofil复合纱

介绍了赛络菲尔纺的纺纱机理及其意义。重点分析了在传统棉纺细纱机上生产棉 /涤赛络菲尔复合纱的工艺关键 ,并对棉 /涤赛络菲尔复合纱的性能进行了测试     

几种纺纱方式对成纱性能的影响

嵌入式复合纺是一种新型纺纱技术,研究了普通环锭纺、赛络纺、赛络菲尔纺和嵌入式复合纺4种纺纱方式对成纱性能的影响.在选用5.56 tex涤纶长丝和毛粗纱为原料,成纱细度和捻度不变的情况下,在细纱小样机上采用不同纺纱方式纺纱.对所纺成纱的各项性能进行了测试,探究了纺纱方式对成纱性能产生影响的原因.结果表明:纺纱方式的原理不同带来的外在的成纱结构特点影响了纱线的内在性能;4种纺纱方式中,嵌入式复合纺成纱的强伸性能、毛羽指数和条干水平最优.     

涤纶缝纫线的纺制技术及质量探讨

选用5-10m的涤纶短纤纯涤纶粗纱和45dtex涤纶长丝为原料,在其他工艺参数不变的情况下,用嵌入式复合纺、赛络菲尔纺、赛络纺和环锭纺四种不同纺纱技术进行纺纱,通过成纱性能对比确定嵌入式复合纺纱技术生产涤纶缝纫线的最佳纺制技术。使用嵌入式复合纺纱技术纺制涤纶缝纫线,在其他纺纱工艺不变的情况下,分别选取不同的长丝问距、捻系数和长丝张力进行了纺纱最佳工艺参数的优化,通过对所纺纱线的实际强力伸长、毛羽指标和条干均匀度三项指标进行测试,最终确定最佳的涤纶缝纫线的纺制工艺。     

捻系数对第1代嵌入式复合纺成纱性能的影响

第1代嵌入式复合纺是一种新型纺纱技术。研究了捻系数对第1代嵌入式复合纺成纱性能的影响。在选用30 dtex涤纶长丝和棉粗纱为原料,其他纺纱工艺不变的情况下,先在一个较大范围内选取3个捻系数水平,然后对所纺纱线的实际细度、捻度、断裂强力和伸长率等项指标进行测试,再采用平分法纺制不同捻系数的棉/涤纶长丝第1代嵌入式复合纱,并测试了纱线的强伸性能,以不断缩小临界捻系数所在范围,最终确定棉/涤纶长丝第1代嵌入式复合纺纱具有最好强力拉伸效果时的最优临界捻系数范围。结果表明:40.6 tex的棉/涤纶长丝嵌入式复合纱的最优捻系数范围为376~399。     

在棉纺设备上开发Sirofil复合纱

介绍了赛络菲尔纺的纺纱机理及其意义。重点分析了在传统棉纺细纱机上生产棉／涤赛络菲尔复合纱的工艺关键，并对棉／涤赛络菲尔复合纱的性能进行了测试。     

亚麻赛络纺纱线及织物性能比较

亚麻在我国具有丰富的资源,但其深加工技术一直未能很好发展,产品性能较差,品种不多.文章介绍了利用赛络纺技术开发亚麻产品,提高其产品性能的研究.结果表明,亚麻/棉赛络纱、亚腑/棉/涤纶赛络菲尔纱织物性能优于环锭纱织物和环锭包芯纱织物,利用赛络纺技术开发亚麻产品具有良好的发展前景.     

棉莱赛尔赛络菲尔纱的纺制与性能分析

为开发新型赛络菲尔纱,将赛络菲尔纺纱中的长丝用短纤维纱代替,成功试纺出不同混纺比例和结构的棉莱赛尔赛络菲尔纱。测试分析了纱线结构、强伸性能,并对5种相同号数、不同结构和混纺比的棉与莱赛尔纯纺和复合纱线进行了吸放湿性能对比分析。结果表明:所纺棉赛络菲尔纱具有类似股线的结构特征,5种纱线的吸放湿过程相近,莱赛尔棉赛络菲尔纱、棉莱赛尔赛络菲尔纱和莱赛尔棉赛络纱的混纺比例接近,其吸放湿性能无明显差异。认为:对于不同结构的棉与莱赛尔纤维复合纱线,影响吸放湿性能的主要因素是纤维原料,纱线结构影响不显著。     

乌拉草/棉/维纶复合纱线的开发与性能

针对乌拉草/棉/维纶赛络纺包芯纱存在毛羽较多和条干较差等问题,加装导纱器引入外包缠纱,设计一种改善其条干和减少毛羽的新型纺纱方法:改进型赛络菲尔纺。对影响纱线性能较大的纱线捻系数与导纱间距进行了实验,并以断裂强度、断裂伸长率、毛羽指数和条干均匀度为性能评价指标,对改进型赛络菲尔纺制备的乌拉草/棉/维纶复合纱的工艺进行模糊综合评价。结果表明:捻系数对纱线性能影响顺序依次为400、380、360、340;改进型赛络菲尔纺在单纱间距为10 mm,捻系数为400时,复合纱的综合性能最好,与传统赛络菲尔纺工艺制备的包芯纱对比,毛羽指数下降了73.49%,条干不匀率减小了29.05%。     

不同纺纱方式对竹浆纤维混纺纱线性能的影响

为研究不同纺纱方式对竹浆纤维混纺纱线性能的影响,采用竹浆纤维、棉纤维、涤纶纤维与粘胶纤维进行混纺,混纺比例为15/40/30/15。通过对竹浆纤维混纺纱线的条干均匀度、毛羽、断裂强度、断裂伸长率等性能进行测试分析,探究了纺纱方式对成纱性能产生影响的原因。结果表明:由于转杯纺、赛络纺、环锭纺、赛络紧密纺、普通紧密纺纺纱方式不同,其不同的成纱结构特点影响了纱线的内在性能。环锭纱适宜生产强力要求较高的产品,紧密纱综合性能较好,赛络纱具有良好的外观特征,转杯纱的条干CV值优于环锭纱,赛络紧密纺的成纱毛羽最低。     

棉/涤Sirofil复合纱的开发及性能测试

介绍了赛络菲尔纺的纺纱机理及其意义。重点分析了在传统棉纺细纱机上，通过设备改造，生产棉／涤赛络菲尔复合纱的工艺关键，并对棉／涤赛络菲尔复合纱及其织物的性能进行了测试。     

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.     

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.     

涤纶长丝纺花式线及其结构性能研究

对涤纶长丝纺制花式线进行花样设计,主要是螺旋纱、结子纱、圈圈纱,并对纺制出的花式纱线的细度、拉伸断裂强度、断裂伸长率及捻度等性能进行测试,为后期的面料设计提供了材料性能依据。     

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。     

减少纯棉精梳针织纱棉结的体会

从原棉选用、清梳联工艺调整和设备状态等方面叙述了减少棉精梳针织纱棉结的体会。使用人工采摘的棉花、保证针布锋利和隔距正确、选配合理的梳理部件速比可减少棉结的产生。     

竹节纱的检测方法

介绍了竹节纱的常用测试方法,认为电容式条干仪检测方法能对竹节作出较准确的判断,此法可加以推广。     

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).     

提高棉纱质量创针织用纱名牌

介绍了近年世界棉纱质量的发展现状及趋势,指出了针织用纱的质量要求日益提高。并结合我省针织用纱的质量状况,阐述了我省创针织用纱名牌应解决的生产技术关键及措施、建议。从而进一步稳定、提高针织用纱质量,赢得市场,争创名牌。     

纯棉精梳色纺纱生产实践

叙述了纯棉精梳色纺纱生产中的原料选配、工艺优选问题，介绍了防止色差和减少棉结的措施，认为应进一步提高色纺纱的质量和档次。     

新型带子纱与睫毛纱的纺纱研究

主要介绍了应用小针筒织带机采用不同工艺开发生产一些新型花式纱线，如睫毛纱、包芯带子纱、彩色麦穗纱等，并详细介绍了纺纱工艺过程。同时指出小针筒织带机的调节方法，提出了生产新型花式纱时应注意的问题。