Polyester fiber clothing has gained immense popularity in recent years. More and more customers love this kind of material. But many still wonder: What exactly is polyester fiber?
Polyester fiber is made from polyester materials through underwater pelletization. It has a melting point between 255-260°C. It offers excellent wrinkle resistance, elasticity, and dimensional stability. Polyester fiber can be used in pure textile weaving or blended with other synthetic or natural fibers.
We customized different polyester chips that can used to produce various polyester fibers. They provide added value to your polyester fibers.
1). What is Polyester Fiber?
Polyester fiber, also known as PET fiber, is derived from polyester materials. Polyester is a polymer obtained by condensing polyhydric alcohols and polybasic acids. Some PET, when pelletized, forms polyester fiber. Fiber-grade polyester chips are used as raw materials for fiber processing in textile enterprises. Polyester is the largest production category among synthetic fibers. It accounts for nearly 80% of the synthetic fiber industry. The market dynamics of polyester affect the whole synthetic fiber industry.
Polyester serves various purposes, including bottles and films. It is used in packaging, electronics, healthcare, construction, and automotive industries. Among these, packaging is the largest non-fiber application market for polyester. It’s also the fastest-growing sector. Polyester chips are a crucial intermediate product that connects petrochemical products with several other industry products.
2). Perfrmance
- Performance
- The polyester’s density is 1.38. The melting point is 255-260°C, with bonding starting at 205°C. Safe ironing temperature of 135°C.
- It has very low moisture absorption at only 0.4%.
- Long filament has a breaking strength of 4.5-5.5 grams/denier, while short fiber has a range of 3.5-5.5 grams/denier.
- The breaking elongation for long filament is 15-25%, and short fiber is 25-40%.
- High-strength fibers can achieve a strength of 7-8 grams/denier and an elongation of 7.5-12.5%.
3). Features
Polyester offers excellent wrinkle resistance, elasticity, and dimensional stability.
- good electrical insulation properties
- withstand sunlight
- resistant to friction
- does not mold or moth
- relatively good resistance to chemical agents
- withstand weak acids and weak bases at room temperature but has limited resistance to strong alkalis
- dyeing performance is relatively poor
- requires dispersed dyes for coloration at high temperatures or in the presence of carriers
4). Application
Polyester, with its excellent textile and wear properties, is widely used.
It can be used for pure textile production or blended with natural fibers like cotton, wool, silk, and linen, as well as other synthetic fibers. This produces a wide range of fabrics with different patterns, durability, easy care, and wrinkle resistance, mimicking wool, cotton, silk, and linen.
Polyester fabrics are suitable for various applications such as men’s and women’s shirts, outerwear, children’s clothing, indoor decorative fabrics, and carpets.
Because of its elasticity and fluffiness, polyester can also be used as cotton batting. In industrial applications, high-strength polyester is used in tire cord threads, conveyor belts, fire hoses, ropes, fishing nets, as electrical insulation materials, acid-resistant filter fabrics, and paper felts.
Non-woven fabrics made from polyester can be used for indoor decoration, carpet backing, medical textiles, waddings, linings, and more.
