Research And Development Of PTT In Seamless Grament

PTT(Poly Trim ethylene Terephthalate)have gained excellent feedback from scholars in Material and textile science since it was formed in 1950s.PTT is a kind of material merging advantages of PA,PET, Spandex but is more elastic than PA,having better dyeing ability than PET and is best in elastic recovery in all fibers.Besides in apparel and fabric market,PTT can also be applied to carpet making and with great potential application on industrial plastic market.Therefore,PTT is viewed as a new material from 21^stCentury.Although it have been more than 10 years since PTT polymer achieved commercial production,it still haven't realized mass application in garment and fabric market,only stayed on the beginning stage.Thus a project on how to effectively and creatively apply PTT to textile market successfully waits scholars to proceed.Under the situation that cost of PTT keeps decreasing,it's more profitable and meaningful for us to realize its application in this field. However,the writer doesn't apply PTT to traditional woven and knitting fabric but to R&D on ready-to-wear seamless apparel.China is the largest seamless product maker in the world,but these products are usually subjected to low level and mainly are brief or underwear with relatively low competition in the market.If PTT's application in this field can be successful with our hardworking then original situation on seamless apparel will be changed,apparel will be softer,thinner and with better durability. Regarding to the maker,this successful application can also bring lower cost in product,which is more practical and important.To achieve above goal,apply PTT(DTY),CM800(PTT/PET)to seamless production.Firstly,do yarn property comparison among PTT,PA,PA core spun with spandex and other ordinary textile materials,such as cotton,Cooldry, etc.Then replace PA and PA Core spun yarns with PTT and CM800 in knitting procedure.During this stage,find some problems and difficulties. After experiments and analysis,provide corresponding resolutions to those and for other maker's reference.Before proceed with dyeing and finishing process in factory,do experiment on sample dyeing at school,trying to conclude best method on control temperature,proportion of dyestuff and time in dyeing procedure. Meanwhile draw dyestuff's absorbed lines in procedure to illustrate PTT's dyeing behavior in detailed,which is great helpful for factory's technician to optimize these factors in practical application.At the end of the research,do fabric properties comparison between PTT and PA,CM800 and PA core spun with spandex.Through data and analysis to illustrate PTT seamless apparel is better in comprehensive properties and can be successfully to realize mass production in future.