ACIDIC EFFECT OF RADIATION GRAFTING BETWEEN ACRYLONITRILE AND WOOL

The acidic effect in grafting of acrylonitrile onto wool fibre under mutual irradiation has been studied. The reactivity of various acids towards graft copolymerization was found as the order: H_2SO_4>HNO_3>HCl>HClO_4>HOAC.     

分散染料染色新工艺及理论（上）

较系统地介绍了近年来出现的两种分散染料染色新工艺及其理论,即超临界二氧化碳流体染色和助剂增溶染色。对这两种染色工艺的优缺点作了深入分析,并介绍了作者利用自己研制的专用助剂,用分散染料染羊毛纤维,证实了这种新工艺的可行性,开拓了羊毛染色的另一种途径,具有理论和实用价值。     

Tencel汉麻羊毛绢丝混纺赛络针织纱的开发

为顺利开发Tencel/汉麻/羊毛/绢丝40/30/15/15 14.7 tex赛络针织纱,针对混纺组分纤维的主要特性,对原料的预处理、混纺比控制提出了解决方案,确定了各工序适宜的工艺参数配置,并制定了相关的技术措施,最终成功纺制出Tencel汉麻羊毛绢丝混纺赛络针织纱,其成纱质量满足了使用要求。     

The components of staple tenacity and the determinants of length after carding

A theoretical model for the tensile strength of staples of wool was used to propose variables that could be measured on thirty six fleece samples from Romney sheep genetically selected on the basis of wool staple tenacity. Other variables that have been noted elsewhere in the literature were also measured. Nearly 75% of the variation in staple tenacity was described by average and minimum cross-sectional area of the fibres, and the relaxed length of the fibres held between the jaws of the instrument used to break the staple. The addition of staple length and variation in total length of the fibres in the staple improved this to almost 84%. The ultimate goal of the genetic selection was to increase the average length of fibres following carding (Hauteur and Barbe), which were also measured on the fleece samples, and the fibre, staple and sample measurements used in stepwise regression to reveal the determinants of length after carding. Variation in Hauteur was dependent on the total energy required to break the staple and the proportion of new tips present in the post-break region of the staple, yet as little as 52% of the variation was accounted for. Average cross-sectional area accounted for a further 3% of the variation in Hauteur but this was not statistically significant. Barbe was dependent on staple tenacity, which accounted for 48% of the variation. In hindsight, staple tenacity may not be an appropriate measure to genetically select sheep in order to improve fibre length after carding given the variables that affect these traits.     

Determination of model parameters for predicting handle characteristics of wool-rich suiting woven fabrics based on the Wool HandleMeter and KES-F

The main aim of this paper is to investigate the feasibility of using the Wool HandleMeter as an economical and effective method to predict the handle characteristics of wool-rich woven fabrics suitable for winter suiting. The correlation analysis and step-wise regression method were used to determine applicable curve parameters extracted from the Wool HandleMeter in order to explain the handle characteristics of the woven fabrics by a series of multiple regression models. Moreover, an independent set of woven samples was selected to validate the regression models on the basis of the Kawabata Evaluation System for Fabrics, subjective handle evaluation and the formability index F_FAST. The results showed that the Wool HandleMeter together with the developed regression models is an excellent starting point for the simple evaluation of handle characteristics of wool-rich woven fabrics and can be the basis for further development of the Wool HandleMeter for woven fabrics.     

紫外线照射对羊毛织物表面理化性能的影响

利用相关表面性能测试方法对紫外线照射前后羊毛织物的表面化学组成、亲水性和微观结构进行表征。结果表明,紫外线照射过程可能是部分破坏了羊毛织物上具有疏水特性的胱氨酸和二硫键及非极性的C-C键,并同时提高了表面羟基、含N基团和C-O键的含量,使织物的亲水性能得到增强,且在紫外线照射羊毛织物静态水接触角降低、毛效提高的结果中得到证实;在低功率、短时间的处理条件下,紫外线照射羊毛织物引起的化学刻蚀未对纤维表面形貌及结晶区结构造成明显变化,仅略微提升了羊毛织物的粗糙程度。综合紫外线照射对羊毛织物表面理化性能的影响,认为该方法利于毛纺染整加工。     

Antibacterial activity of nano-SiO2 antibacterial agent grafted on wool surface

A composite antibacterial agent of Ag-loaded nano-SiO₂ was prepared by adsorption methodology and grafted on wool surface. The antibacterial performance of the antibacterial wool fibers was tested for different concentration of composite antibacterial agent, contact time with germs and washing time. The content of the composite antibacterial agent grafted on wool fibers was easily controlled by varying the antibacterial agent concentration in the grafting process. The results showed that antibacterial activity increased with the increasing concentration of the composite antibacterial agent. The antibacterial wool fibers grafted 4.3% of composite antibacterial agent was highly effective in killing test bacteria and had excellent water-resisting property.     

基于ERP的毛纺织企业混合生产计划体系研究

分析了毛纺织行业的生产特征和混合生产计划体系的特点，构建了适用于毛纺织行业的生产计划体系框架并描述了功能要求。研究了各个主要计划模块的增强功能。     

羊毛沾污物与洗毛工艺(二)

本文对羊毛的沾污物质一羊毛脂、羊毛汗和尘土等做了较全面的介绍，同时介绍了洗毛的各种方法，并对水洗毛和溶剂洗毛进行了对比分析。     

水溶性聚氨酯羊毛防缩剂的研制

制备了一种水溶性聚氨酯,其制备过程是:首先按NCO/OH=2(mol)配比合成聚氨酯预聚体,然后在助溶剂存在下,与NaHSO_3水溶液混合,预聚体中NCO端基被NaHSO_3封闭,即成为聚氨酯水溶液.影响NCO基团封闭率的主要因素有:助溶剂种类、NaHSO_3/NCO比、溶液固含量等.将水溶性聚氨酯用于羊毛防缩整理,防缩效果达到IWS机可洗标准.