Study on Pneumatic Splice

An ideal pneumatic splice has not only interminglings in the middle, but also many small wrappings on both sides of the spliced region, and must have near overlapping loopy wrappings at both ends. Only the fluffy and hairy untwisted yarn ends obtained from a swirling jet untwisting can generate many small wrappings when spliced.To get the fluffy and hairy untwisted yarn ends, a small swirling intensity value X must be used to eliminate a reverse flow zone. To increase the wrappings at both ends, a larger swirling intensity value X must be used to form a reverse flow zone. Only a perfect splice can better the yarn's appearance,increase its strength and make it impossible for its fibers to slip easily.     

Studies of the Mechanical Properties of Viscose Wrapped Spandex Yarn

In this paper ,we can learn the performance of viscose wrapped spandex yarn through several aspects ,including yarn strength, elastic recovery rate and boiling shrinkage.If we grasp these structure characteristics, we can spin out the best yarn that we need.     

INA-V牵伸的牵伸机理分析

对ＩＮＡ－Ｖ牵伸的后区牵伸机理进行了分析（摩擦力界分布、纤维变速点分布、纤维伸直效果及粗纱捻回的变化）,并进行了纱线质量的对比试验。     

Analysis on the Effect of Indirect Yarn Steaming for FM 50/50 yarn

This experiment devised and optimized the process of indirect yarn steaming.Properties of FM 50/50 yarn treated by indirect yarn steaming were measured.By using different yarn steaming parameters and gray system theory,we got the best parameter setting on the yarn steaming apparatus.By studying and comparing the problems in knitting process,effects of yarn steaming were further studied on yarn and blended knitted fabrics.     

涡流纺流场的一种测试方法及其分析

介绍了用管式针头测量涡流纺涡流管内空气流场中某一点全压和静压的方法，并可根据所测全压和静压计算该点的动压和速度．对所测静压进行修正，建立了涡流管流场测量的修正公式     

Research on Mechanical Properties of Chemical Fibers

Development and present situation of chemical fiber industry was briefly introduced. In this paper, a comparative study on mechanical properties of nylon, polyester, and polypropylene was done. The purpose of the study is to have a better understanding of the performance of the various fibers and their advantages and disadvantages, to explore their application environment.