PTT and PET composite polyester yarn have the comfortable hand feel of nylon, the bulk of acrylic fiber, the resilience of spandex, the high strength and dimensional stability of polyester. The fabric of this fiber is crisp, good dimensional stability, soft feel, good resilience, chlorine resistance, anti-aging, with strong anti-fouling ability of PTT fiber and dry and other unique properties, favored by consumers. Suitable for warp knitting, water jet, jet and many other post-processing equipment processing. PTT fiber has the characteristics of polyester, nylon and acrylic, in addition to good anti-fouling performance, it is easy to dye, soft to feel, elastic, elongation as good as spandex fiber, and easier to process than elastic fiber spandex.
In addition, PTT also has dry, crisp and other characteristics, very suitable for textile and clothing fabrics, PTT is suitable for pure spinning or with cellulose fiber and natural fiber, synthetic fiber composite, the production of carpet, plainclothes, fashion, underwear, sportswear, outdoor jacket,swimwear and socks, etc., in the near future, PTT fiber is likely to gradually replace polyester and nylon and become the trend of large fibers in the 21st century. At present, the price of pure PTT fiber is high, and the development needs a process. PTT and PET composite fiber can effectively reduce the cost of fabric, and the fabric properties are both, so PTT and PET composite fiber has great potential for development.
At present, the proportion range of PTT and PET composite spinning is generally :PET accounts for 55%-60%, and PTT accounts for 40%-45%. Using low viscosity PET and solid phase viscosification PTT chip spinning twin-screw component composite melt spinning composite process production, currently mainly in the composite spinning filament, the current product specifications on the market are mainly concentrated between 40D-450D (typical products such as 40D, 50D, 65D, 75D, 100D, 150D, 225D, 450D, etc.).