Special Component Structure Of Friction Spun Yarn Processing And Its Performance Study

In this paper some kinds of processing methods and special structural properties of the core-spun yam have mainly been developed produced on DREF-III friction spinning system, which can be used in many different purposes. It is studied in four parts:1 .The special structural yam produced by using the friction spinning technology is used in the industrial fabric and composite. The traditional processing methods of glass fiber fabrics and glass-reinforced materials are directly made by workers with their hands. Once workers get in touch with it, the strength of glass fiber will quickly decrease because of its natural properties of rigid and fragile. So as not only to destroy the performance of final product, but also hurt their body. However, It cannot be avoided in the course of production. We produce the friction core-spun yam made of polyester as sheath and glass filament as core to solve the problem better. The friction core-spun yam are of well property-price-rate, also with its high speed, relative shorter procession and characteristic multi-component structure are doubtless economical and high performance which cannot be replaced by any other spinning methods. The industrial textiles such as 2-D woven fabric, needle fabric, non-woven fabric and 3-D knit composite material will be in an very important position and a bright future, which also come up to the development trend of textile industry.2. The mechanical properties of friction core-spun yarn. The influence of sheath-core fiber's characteristics on the properties of DREF-III friction core-spun yam have been analyzed through experimentation. The effects of sheath fiber fineness and length on the tensile and bending properties of friction core-spun yarn have been studied using polyester and acrylic fibers.3. The thermal properties of friction core-spun yam. The influence of thermal treatment on properties of friction core-spun yam has been analyzed through experimentation. The influence of proportion of sheath component and thermal treatment under the relaxed condition on thermal shrinkage, sheath-slipping resistance and tensile properties of friction core-spun yam made of polyester multifilament core and cotton sheath has been studied both in dry and wet state. It is observed that the thermal treatment markedly increases the thermal shrinkage and sheath-slipping resistance.4. The properties of woven fabrics containing core-sheath friction core-spun yarn in weft. The properties of plain woven fabrics made of friction core-spun yarn having staple fiber core-sheath yarn, twistless core component and hollow sheath component in weft and 2-ply cotton ring-spun yarn in warp have been studied. Three different fiber in core and water-soluble staple PVA fiber in sheath, and PVA in core and viscose in sheath are involved. It is observed that the fabric made from twistless core component in weft shows very good tensile strength, tear strength, crease recovery and abrasion resistance, whereas the fabric with hollow sheath component in weft shows bulky and compressible structure.