纱线捻度

论述基于单片机的纱线捻度测量仪的原理、硬件和软件实现，着重介绍PWM电路的工作过程和软件产生PWM脉冲的方法，并给出实现PWM信号的程序代码。

With the principle and facture of Yarn Twist measurement instrumentation discussed , the present paper emphases the working process and facture of PWM , and provides source code .

单片机在纱线捻度测量中的应用

The Application of Single - chip Microcomputer in Yarn Twist of Instrumentation

环锭细纱机加捻卷绕运动所引起的纱线捻度不匀

Twist unevenness caused by twisting and winding motion on ring frame

测定低捻长丝纱线捻度的方法及理论

Theory and Measure for Testing Twist of Lower Twist Filament Yarn

纱线捻度对清洁布清扫能力的影响

The Effect of Twist on Soil Retention of Cleaning Cloth

纱线捻度与织物紧度对织物硬挺度的影响

Influences of Yarn Twist Fabric Tightness on Fabric Stiffness

赛络纱线捻度测试方法的研究

A Study on the Measurement of Sirospun Yarn Twist

纱线捻度的测定：直接计数法

Determination of twist in yarns : direct counting method

两种圆杆上摩擦都随纱线捻度的增加而减少。

On both pins friction decreases with increasing twist .

卷缩的纱线捻度过高会产生扭结。

Unbalanced yarns have sufficient twist to kink .

在络纱过程中，保持纱线捻度的不变是十分重要的。

It is important that , during winding , no twist change take place .

纱线捻度测试方法的探讨

The testing method of the yarn twist

影响纱线捻度和加捻效率的主要工艺参数是加捻管的转速和引纱速度。

The main spinning technological parameters which affect the yarn twist and twisting efficieney are the speed of the tube twister and the winding speed .

这种环境可以使纬纱松弛，降低纱线捻度的不稳定性，防止发生扭结。

This conditioning is done to allow the filling yarn to relax , reducing the twist liveliness of the yarn and preventing the formation of kinks .

本文从理论和实践两方面提供了测定低捻长丝纱线捻度的新方法，并通过试验证明了本方法的可靠性。

Based on theoretical and practical experience , the author puts forward a new measurefor testing the twist of lower twist filament yarn , and this measure is proved through testingpractice .

运用单因子试验和正交试验讨论了氨纶百分含量、纱线捻度、氨纶牵伸倍数对弹性纱线性能的影响规律，得出各因子对纱线性能影响的显著程度和最优加工工艺参数。

Single factor and orthogonal experiments were carried out to discuss the impact of spandex percentage , yarn twist factor , spandex drawing ratio on yarn properties . As a result , significance level and optimal yarn processing parameters were obtained .

同时探讨了纺纱工艺参数&热板温度、芯丝拉伸倍数、纱线捻度、网络度等与变形纱沸水缩率间的关系。

At the same time , the relation between the shrinkage ratio of combination yarn in the boil water and spinning processing parameter , especially the temperature of heated plate , draw ratio , twist and network density are also discussed .

结果表明：Coolmax复合纱线的捻度对其毛细芯吸高度的影响较大。

The results show that the ( difference ) of the twist of Coolmax composite yarn can much affect the wicking altitude .

用于测定各种纱线的捻度及捻度不匀率。

Used for testing the twist and twist irregularity of all kinds of yarns .

本课题重点对长丝／短纤维复合纱线的捻度结构及其测定方法，拉伸性能和它的复合原理与规律进行了理论分析与实验研究。

Twist structure and twist determining methods , tensile behavior and its composite principle have been mainly studied in this theme .

降低一般纱线的捻度可以使织物具有较好的手感和悬垂性以及较好的舒适性。

Lowering the degree of twist of simple yarns may give a cloth with a more pleasant hand and drape , and superior comfort .

超低捻纯棉纱线由于捻度低，它织成的针织物具有羊毛般的柔软手感，主要用于针织衣物和毛圈类针织产品。

Knitted fabric made of super-low-twisted cotton yarn is featured by cashmere-like soft handfeeling , which is applied in textiles pursuing good handfeeling , like underwear , bath towel and so on .

根据VC程序运行结果来看，该纱线模型结合捻度结构用于模拟平纹织物的效果逼真。

Through running result of VC program , this yarn model combing with twist structure used in simulating plain weave fabric has living effect .

Sirospun纺单纱纱线结构和捻度分布的分析

Analysis of yarn Structre and Twist Distribution of Sirospun Single Yarn

纺纱区纱线强力和捻度的关系

Interrelationship Between Yarn Strength and Twist at the Spinning Point

纱线毛羽与捻度不匀产生原因及控制措施

Cause and Control Measures of Yarn Hairiness and Twist Unevenness

纱线毛羽与捻度不匀严重影响织物质量。

Yarn hairiness and twist unevenness affect fabric quality seriously .

复合纱线存在临界捻度；

There is a critical twist of the composite yarn .

羊绒纤维细而短小，如果纱线支数、捻度、织物结构、编织密度搭配不当，则很容易起毛起球。

Cashmere fiber thin and short , if the yarn count , twist , fabric structure , weave density , with properly , it is very easy to pilling .

本文通过建立纱线加捻过程中捻度变化规律的运动学方程和变直径纱线加捻过程的动力学方程获得了摩擦纺加捻过程的动力学基本微分方程。

This paper presents a dynamic differential equation for the twisting process of friction spinning through setting up the kinematic equation of variation in the twisting process of yarns and the dynamic equation for the twisting process of variable diameter yarns .