Reduce Tencel Hairiness Theory And Practice

The yarn hairiness of spinning was one of the most difficult problems to absolve nowadays. In the early times yam hairiness was removed or made up by finishing processes, so it was not important for spinning and weaving processing. Now with the development of the new technology, Tencel fiber and its blending products was regarded by the market, so maximum benefits was gained to use more advanced technology with minimum costs, the hairiness problem was absolutely urgent.The yarns hairiness was one of the important quality terms for yarns' quality, which not only influenced the appearances of the woven or knitted fabrics, but also affected the inner qualities, the efficiency and costs of weaving and finishing process.In the paper the history, physical and chemical properties and yarn characteristics of Tencel were represented. Yarns hairiness was definited and classified, especially its producing mechanism was discussed in detail, so the new concept was put forward to reduce harm hairiness.The factors for effecting Tencel hairiness was analyzed in forming winding yarn from spinning yarn. And the problem of Tencel hairiness was solved by changing and controlling winding tension.Some technical and apparatus measurements were improved to resolved spinning hairiness by analyzing its causes. Particularly theoretical study was brought forward to lower hairiness with air-jet spinning, and some experimental analysis were preceded. At the same time the measurements of reducing hairiness was put forward by analyzing winding process.Considering sizing craft , sizing hairiness is a main effect of air-jet weaving efficiency, and Tencel proceeds were studied in detail, so many measurements were presented. Such as lowering the Tencel warp breaks on air-jet loom, improving entangling hairiness and so on.Because author lacked some theories and practices, market research and viability assessment were only worked for air-jet spinning, repeatability of some data was not very good, so it would be improved in the future.