苎麻纱的毛羽分析

本文作者对苎麻细纱的毛羽特性进行了研究。对纤维细度,纺纱支数、细纱捻度、变性苎麻纤维与细纱毛羽的关系亦进行了分析,得出如下结论: 1.纤维细度对细纱毛羽有明显影响。纤维支数愈高,毛羽愈少。 2.纺纱支数对毛羽的数量有一定影响。支数愈高,毛羽量愈少。 3.提出了细纱捻度与毛羽的回归方程。 4.变性苎麻纤维对细纱毛羽有明显影响。 5.提出了S_0=KN_1L_1d_0是衡量苎麻纱毛羽的一个重要指标。     

利用苎麻前处理工艺降低苎麻纺纱毛羽

通过试纺27.8tex纯麻纱,探讨和比较了前处理工艺中纤维素酶处理、碱变性、脱胶软麻油剂及其工艺等对苎麻成纱毛羽的影响,指出合理的前处理工艺是降低苎麻纺纱毛羽的有效途径.     

改性羊毛/苎麻平行纺复合纱的开发

介绍了羊毛与苎麻的前处理改性工艺．采用平行纺的纺纱方法在空心锭花式捻线机上开发出了新型长丝包须条的单包与双包结构的羊毛／苎麻复合纱．此复合纱具有结构稳定、条干均匀、毛羽较少、风格独特等特点，为毛织物的轻薄化、凉爽化开辟了新途径．     

凉爽毛麻复合纱产品开发

本文介绍了优质苎麻纤维与羊毛复合成纱的加工技术，对比检测了毛纱、麻纱、毛麻复合纱的条干、毛羽及强伸性能：开发了毛麻复合纱针织物，并测试了织物的导热性能。实验结果表明毛麻复合纱针织物导热性优于纯毛织物，由其所制成的衣服凉爽性更好。     

集聚毛纱性能的测试分析

本文对25tex（40公支）的集聚毛纱和普通环锭毛纱的毛羽、条干均匀度、强力等性能进行了测试，分析了它们的性能差异及其原因。     

苎麻纱直径系数的研究

为了推导出苎麻纱理论直径的计算公式，本采用显微镜投影法测试苎麻纱直径、测长称重法测定其公制支数，然后用最小二乘法分析求得苎麻纱直径系数k=0．0312．为在生产工艺设计及理论分析中采用计算法求苎麻纱直径提供了方便。     

苎麻织物表面性能的分析探讨

本文采用织物风格仪对苎麻织物表面性能进行测定,对不同织物的表面风格进行了比较;并着重就27.8tex纯苎麻纱捻度与织物表面风格进行了实验。结果表明,苎麻纱线捻度与织物表面的摩擦系数呈抛物线关系,捻度过大或过小都将影响织物的表面手感。在纱线捻度T=595～624捻/m范围内,织物在其经、纬向上的静、动摩擦系数均较小,手感光滑。     

苎麻长纤维与棉纤维混纺的研究

由于牵伸装置的局限性,一般长纤维和短纤维纺纱是分别在不同设备上进行的。苎麻/棉混纺纱也都是以苎麻短纤维(落麻或切段麻)和棉纤维按短纤维纺纱系统混纺而成的。由于原料性能的限制,其成纱质量较低,尤其是条干不匀、麻粒等方面较差,难以满足高档织物的要求。本文通过对长、短纤维在长纤维纺纱设备上进行各种方案的纺纱试验,证明了只要合理调整牵伸装置等工艺条件,长短纤维在同一设备上纺纱是可行的。并对纺出的长麻/棉混纺纱的性能作了测试分析。结果表明,由于纺纱原料性能的改善,长麻/棉混纺纱的质量较短麻/棉混纺纱的质量有了较大提高,这对开拓麻/棉混纺纱生产和市场有一定的意义。     

空气变形纱毛羽的测试方法

突出于纱体表面的零散的弧圈结构形成了空气变形纱的毛羽，其与纱线主体之间的界限模糊，且其毛羽结构和状态在外力作用下极易改变，对检测条件要求较高．通过4种仪器和方法对空气变形纱的毛羽进行了测量，认为EIB（Electronic Inspection Board）和Uster tester 4两种仪器的检测结果与静态投影目测计数法检测结果较为相近：空气变形纱毛羽数量高于同线密度的普通精纺毛纱和精梳棉纱的毛羽数量；空气变形纱的毛羽数量多集中于短毛羽（毛羽长度在1mm以下）区，并且随着毛羽长度增加而急剧减少，呈指数关系，在长毛羽（毛羽长度在2mm以上）区，空气变形纱毛羽数量显著少于短纤维纱．     

水溶性纤维应用研究

采用水溶性纤维为原料,在DREF—Ⅲ型尘笼纺纱机上对苎麻纱进行表面处理,再经后整理,使纱线获得良好的上浆效果,其毛羽明显减少,长毛羽基本伏贴。同时纱线的耐磨性、断裂强度均提高。     

改善苎麻及其混纺纱弹性研究

本文主要为了改善苎麻纱和麻棉纱的弹性,对苎麻纱、麻棉纱和棉纱进行了碱处理。并根据前人所做的工作,即有张力状态下碱处理和松弛状态下碱处理,其纱线性能存在较大差异,因而本文着重考虑在不同张力状态下进行碱处理,研究结果表明,采用低张力进行碱处理。其苎麻纱和麻棉纱的最大变形能力即断裂伸长显著增加,初始弹性模量显著下降,纱线变形恢复能力显著提高。     

Effect of Blending Ratio on he Properties of Ramie/Polyester Blended Yarn

The effects of the blending ratio on the properties of Ramie/Polyester blended yarns are discussed in this paper. The experimental results show that the elongation of the yarn with the polyester content more than 40% is better than that of others. There is a lowest tenacity of the yarn corresponding to the blending ratio of 50/50 or so. The other properties of the yarn, such as the evenness and hairiness, will be improved with the increasing of the polyester content.     

Knitting and Finishing of Ramie Knitted Fabrics Blended with Fine Polyester

Ramie fibre is harsh and rigid. Ramie yarns have a hairy feel and reduced cohesion. A considerable amount of research has been done to ease the undesirable properties of ramie products through modifying conditions of knitting and finishing according to the special properties of the ramie yarn. From the comparison results, burning the hairiness is shown as one of the effective methods to bnprove the properties of the yarn. A typical finishing condition with enzyme treatment is also recommended.     

Research on the Loop Deformation of Flat Silk Knitted Fabric Made from Parallel Spun Silk/ramie Core Yarn

This paper analyzes the causes of loop deformation of flat silk knitted fabric made from parallel spun silk/ramie core yarn. Through the measurement and analysis on the loop deformation of various samples, it is concluded that the problem herein mentioned would be improved to a certain extent by changing the fabric density or mixknitting from yarn with different direction of twist.     

SOME END-USES OF PURE RAMIE NOIL ROTOR YARNS

In the previous studies, the optimum technological combination has been obtained for producing coarse pure ramie noil yarns on rotor spinning system currently. Because of no yarn properties standard available at present for suchlike yarns, it is considered necessary to analyse the acceptability of coarse pure ramie noil rotor-spun yarns in terms of yarn properties before their products being developed. By the aid of a hypothetical concept "pure ramie noil ring-spun yarn", this paper draws the conclusion that the coarse pure ramie noil rotor-spun yarns are condsidered acceptable to a great extent; furthermore, it introduces 5 kinds of woven fabrics and 3 kinds of knitted fabrics successfully designed and developed from those yarns.