基于假捻集聚的棉纺细纱质量影响因素分析

研究了环锭纺纱假捻牵伸方法的工艺参数与纱线条干、断裂强度、断裂伸长和毛羽指数4个主要质量指标之间的关系,并对其进行了优化.采用部分因子实验设计对捻系数、后区牵伸倍数、后区隔距、假捻器转速等4个参数进行了分析,筛选出捻系数和假捻器转速为影响纱线质量的主要因素,并通过最速上升实验逼近最大响应区域,进而应用中心复合设计和响应面分析确定出捻系数和假捻器转速的最佳设置.实验结果表明,纱线的主要质量指标与优化拟合模型预测值较符合,模型拟合良好.     

羊毛拉伸细化技术综述

阐述了国内外羊毛细化技术的发展过程，并详细介绍了拉伸细化的机理及各种工艺流程，同时列表说明改性后纤维，纱线及织物性质的变化。     

羊毛细化拉伸系统的作用分析

对羊毛细化罗拉拉伸系统的作用进行分析，建立了纤维拉伸倍数计算公式，得出纤维有效拉伸的条件，并通过实例验证了有关分析。     

羊毛原纤体增强角蛋白膜的力学性能表征

基于羊毛微细结构,仿生制备了微-亚微尺度的原纤增强角蛋白膜,并以此为试样表征了该同质复合膜和增强体原纤的力学性能.试验发现,羊毛原纤的增强效果明显,复合膜的模量和强度相对未增强角蛋白膜有大幅提高.在同样的混合比下,光滑尖端原纤仅使膜的断裂伸长率略有降低；而采用分叉头端原纤作为增强体,增强、增韧效果同时改善.另采用修正混合法则,对微尺度羊毛光滑尖端原纤和分叉头端原纤的强度、模量和剪切强度进行了估算.     

Comprehensive Characterization Model of Integrated Cotton Fiber Quality Index

An integrated cotton fiber quality index (ICFQI) model with cotton fiber qualities which can directly express cotton fiber integrated quality and spinning yarn quality was studied.The fiber length,strength,Micronaire ( fiber fineness and fiber maturity),uniformity of fiber length,and short fiber content are the pivotal indexes expressing ICFQI.All of the results above are the basic knowledge to build up the models of ICFQI.According to spinning consistency index (SCI),spinning strength and spinning yarn integrated quality,ICFQI was the best choice.As the methods of ICFQI had quite a lot of advantages like explicit mechanism,few independent variables.The integrated fiber quality index had a significant positive correlation with yarn strength and spinning consistency,significant negative correlation with yarn evenness and yarn thin places.In additional,the model of the relationship between ICFQI and SCI was established as:SCI =0.235 6 · ICFQI+56.153.It was concluded that ICFQI value was the shared reference index for the testing of fiber inspection agency and the selection and distribution of raw cotton bales by textile mills.     

The Process Analysis of the Roller Stretching for Wool Slenderization

A theoretical estimation for the multiple-drawinghas been derived under the consideration of fiberlength distribution for the wool fiber stretchingsystem. The functions of the roller drawing systemand the parameters in stretching process have alsobeen analyzed. The theoretical algorithms have been     

Analytical Algorithms for the Blend Ratios by Fibre-bundle Tensile Curves Part Ⅲ： The Definition Method and the Relationships between the Blend Ratio and Tensile Parameters Calculated from Different Ways

The algorithms of the strength, work, modulus and percentage methods have been introduced and discussed in Part Ⅰ and Part Ⅱ of the series papers. As the following, the percentage-function calculation and the frequency-function calculation of the definition method are defined and developed in detail. Meanwhile, the Procedures to fred the tensile parameters are analysed experimentally and involve “ED” being the average values of the corresponding tensile parameters of each bundle tensile curve measured; “EC” being the tensile parameters obtained from the averaged experimental tensile curve; and “TC” being the parameters of the theoretical tensile curve according to the corresponding nominal blend ratio. The theoretical and experimental results indicate that the blend ratio estimated by the definition method from wool/polyester blended fibre bundles has a high correlation with the actual blend ratio though the variables to be known in this method are the most of all the methods and there exist the difficulty to solve fibre bundle tensile behaviour without fibre broken in accuracy and that there are high correlations between the EC and TC data and the tensile parameters should be calculated using the EC method rather than the ED method with the exception of the bundle initial modulus. The relationships between blend ratios and the tensile properties of blended fibre bundles can be used to select the optimum blend ratio of blended tops or yarns.     

毛丛卷曲特征研究的应用前景

综合了国内外对羊毛毛丛卷曲特征(包括卷曲频率、卷曲清晰度和卷曲弹性伸长率)的研究,阐述了其在羊毛买卖和生产加工中的重要作用,并对它们的应用现状和前景作了分析和预测。     

某可变恒等式条件下环的交换性

利用Herstein关于交换性的著名结论以及Jacobson密度定理等理论,应用体上行列式、线性方程组求解等方法,研究了环的交换性条件,得到了半质环的一个交换性定理.该结论中关于多项式的约束条件比较宽松,涵盖了多个已有结论,使得这些结论都成为了本定理的推论.     

针织运动面料热湿舒适性的模糊评价

根据运动中人体显汗的特点,提出了影响运动中热湿舒适性的主要因子。对典型针织运动面料的相关性能进行了测试,并对其热湿舒适性进行了模糊评价。