What is polyester fabric? Why are more and more thermal underwear made of polyester fabric?

Polyester fiber, commonly known as polyester, is a synthetic fiber made by chemical condensation of organic dicarboxylic acids and diols. It is now the most important type of synthetic fiber and has many advantages:

1. Good linear density and wear resistance

The textile manufacturing industry requires the use of fine fibers to improve the density and wear resistance of fabrics, and polyester fibers precisely meet this requirement. Compared to natural fibers, polyester fibers are softer and easier to process.

2. Good elasticity and stability

Due to the high linear density of polyester fibers, this material can effectively maintain the stability of its shape and size after being made into fabrics, while also having good extensibility, allowing the fabric to naturally exhibit beautiful lines.

3. Good wrinkle resistance and heat resistance

Polyester fibers can withstand high temperatures, even after multiple washes or high-temperature drying, they can still maintain a fine fiber structure and smooth texture. Meanwhile, polyester fibers have high strength and elastic recovery ability, making the woven fabric sturdy and durable, while quickly restoring its original state. In addition, polyester fibers also have characteristics such as wear resistance and non stick fuzz, making the fabric look neater.

Nowadays, in many cases, synthetic fibers are the best choice, thanks to innovation in materials and technology. Although we used to associate luxury materials with natural fibers such as silk, cashmere, and fur, in the past decade, many new synthetic materials have emerged. They not only look beautiful, but also have good fit, drape, and feel, as well as breathability, wrinkle resistance, and easy cleaning. At the same time, their costs are lower, which is a factor that businesses must consider and the greatest benefit for them.

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