聚酯纤维由有机二元酸和二元醇缩聚而成的聚酯经纺丝所得的合成纤维。就是俗称的涤纶，被广泛运用于服饰面料，涤纶有优良的耐皱性、弹性和尺寸稳定性、绝缘性能好、用途非常的广泛，适用于男女老少的衣着。
Polyester fiber is made from polyester that is condensed from organic acids and diols. Is commonly known as polyester, is widely used in clothing fabrics, polyester has excellent wrinkle resistance, elasticity and dimensional stability, good insulation, a wide range of uses, suitable for men and women of all ages.
聚酯纤维具有较高的强度与弹性恢复能力，因此坚牢耐用、抗皱免烫。它的耐光性较好，除比腈纶差外，其耐晒能力胜过天然纤维织物，尤其是在玻璃后面的耐晒能力很好，几乎与腈纶不相上下。另外聚酯面料耐各种化学品性能良好，酸、碱对其破坏程度都不大，同时不怕霉菌，也不怕虫蛀。
Polyester fiber has high strength and resilience, so it is durable, wrinkle resistant and durable. Its light resistance is better, except that it is worse than acrylic fiber, its light resistance is better than natural fiber fabrics, especially in the glass behind the sun resistance is very good, almost equal to acrylic fiber. In addition, polyester fabrics have good resistance to various chemicals, acid and alkali damage to its degree is not great, at the same time not afraid of mold, not afraid of insects.
现在市场上还流行聚酯纤维阳光面料，这样的面料有很多的优秀，遮阳、透光、通风、隔热、防紫外线、防火、防潮、易清洗等特点，是一种非常好的面料，用于服饰制造很受现代人的欢迎。
Now the market is also popular polyester fiber sunshine fabric, such fabric has many excellent, shading, light transmission, ventilation, heat insulation, anti-ultraviolet radiation, fire prevention, moisture-proof, easy to clean and so on, is a very good fabric, used in clothing manufacturing is very popular with modern people.