要布麻纤维／Tencel精梳混纺纱的开发

通过对罗布麻纤维的分析，提出对罗布麻纤维加工时必须进行预处理，以克服罗布麻纤维的弱点，提高罗布麻纤维在棉纺设备上加工的可行性，并对罗布麻纤维和Tencel纤维的混纺进行了介绍。     

棉罗布麻混纺纱的生产工艺研究

探讨棉/罗布麻72/28 18.3tex赛络集聚纱的生产工艺及其纱线特点。罗布麻纤维预处理后与扯松的精梳长绒棉条混和后再经清梳联成条,罗布麻与棉混和条预并后经过三道并条制成熟条。分析了罗布麻纤维的性能特点、前处理工艺、纺纱工艺流程,制定了合理的工艺参数;分析了棉罗布麻混纺纱内纤维径向转移特性。指出:合理的参数配置可提高罗布麻纤维的可纺性能,使成纱质量达到要求;纺纱过程中罗布麻纤维易向纱线内部转移,棉纤维易向纱线外部转移。认为:棉罗布麻混纺织物具有优良的服用性能。     

精梳棉罗布麻远红外粘胶混纺纱的生产

介绍了精梳棉罗布麻远红外粘胶混纺纱的主要纺纱工艺。精梳棉罗布麻远红外粘胶混纺纱采用功能纤维罗布麻、远红外粘胶与精梳棉混纺，使各种纤维的特性得到复合、优化、互补，形成了独特的产品风格。由于罗布麻纤维较粗，刚性大，在纺纱前必须进行预处理，以降低罗布麻纤维的刚性，提高其可纺性。     

罗布麻结构与性能及应用研究

文章通过分析罗布麻的研究现状,论述了罗布麻纤维的物质组成、形态结构、纤维特征以及罗布麻产品的优异性能,探索了罗布麻纤维的初加工工艺和产品开发,指出罗布麻纺织品具有广阔的应用前景。     

开发亚麻／罗布麻保健型纺织产品的探讨

根据亚麻纤维纤维与罗布麻纤维两者不同的纤维特性，结合其优良服用性能，纺制出亚麻／罗布麻混纺纱，进而开发出亚麻／罗布麻保健纺织产品。     

丝罗布麻保健纱的开发

将天然蛋白质蚕丝纤维与具有良好药理作用的罗布麻纤维,在绢纺设备上混纺,成功地开发了一种新型的丝罗布麻保健纱。文中简要介绍了不同棉级精梳棉和罗布麻纤维的物理性能及该保健纱在设计与生产中的技术要点。     

罗布麻纤维有效成分抑菌机理初探

采用烧瓶振荡法测得罗布麻纤维、提纯后的罗布麻纤维的大肠杆菌抑菌率。结果表明经过提纯后罗布麻纤维的抑茵率明显下降,分析罗布麻纤维中含有抑茵成分,但通过质谱分析,罗布麻纤维中并不合黄酮类化合物。     

TEMPO氧化法制备罗布麻纳米纤维素纤维

以罗布麻韧皮为原料,通过TEMPO氧化法与超声波机械作用相结合的方式制备罗布麻纳米纤维素纤维.采用单因素试验研究氧化参数对罗布麻纳米纤维素纤维得率的影响,得到使罗布麻纳米纤维素纤维得率最高时各氧化参数的最佳设计值.TEM、FTIR和XRD结果表明:罗布麻纳米纤维素纤维为纤丝状,具有较高的长径比,平均直径分布范围为40～...     

罗布麻纤维结构与性能测试研究

罗布麻纤维属于天然纤维,由于其具有较强的抑菌保健功能,相应的功能性纺织品的开发正愈发受到重视。文章对罗布麻纤维的成分、表面形貌特征、纤维长度、吸湿性能、力学性能、抗菌性能进行了测试分析,并将罗布麻纤维的这些特性与纱线的可纺性、抑菌性结合起来研究,为其纺纱加工、产业化生产提供了一定的理论依据。结果表明:罗布麻纤维通常与其他纤维进行混纺,其纤维纵向沟槽及中腔使得厌氧菌无法生存,适合加工成具有抑菌性的袜子、内衣等功能性纺织品。     

超临界处理条件对罗布麻韧皮纤维结构的影响

研究了超临界预处理、超临界生物酶和超临界化学处理对罗布麻纤维结构和组成的影响。采用傅里叶变换红外光谱、X射线衍射、热性能分析和扫描电子显微镜对罗布麻纤维进行分析。红外光谱分析结果表明,生物酶可以去除果胶和半纤维素,氢氧化钠和过氧化氢的混合物可以去除罗布麻韧皮中的木质素。X射线衍射结果表明,与未经处理的纤维相比,处理后的罗布麻纤维结晶度指数和晶粒尺寸有所增加。热重分析结果表明,罗布麻纤维经超临界处理后,热稳定性有所提高。SEM测试结果表明,超临界CO_2生物化学脱胶后包覆在罗布麻原麻周围的胶质基本被去除,纤维表面光洁。     

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.     

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.     

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。