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Why are pet non-woven fabrics generally white or transparent

by:XINYU Non-woven     2022-02-18

100% polyester chips are the raw material of pet polyester spunbond non-woven fabrics. This kind of non-woven fabric is also a kind of what we call filament non-woven fabric.

pet is a milky white or light yellow, highly crystalline polymer, commonly known as polyester. The surface is smooth and shiny. It has excellent physical and mechanical properties in a wide temperature range, the long-term use temperature can reach 120 ° C, and the electrical insulation is excellent. Even at high temperature and high frequency, its electrical properties are still good, but the corona resistance is poor, and the Creep, fatigue resistance, friction resistance and dimensional stability are all good. The pet spunbond non-woven fabric is made of this material by spunbonding and hot rolling.

The pet polyester spunbond non-woven fabric supplied is a water-repellent non-woven fabric, and the water-repellent performance of the non-woven fabric is different according to the size of the gram. The larger and thicker the gram weight, the better the water repellency. If there are water droplets on the surface of the non-woven fabric, the water droplets will slide off the surface directly. And high temperature resistance. Because the melting point of polyester is around 260°C, pet polyester spunbond non-woven fabrics can maintain the stability of non-woven fabric dimensions in environments where temperature resistance is required. It has been widely used in thermal transfer printing, transmission oil filtration, and some composite materials that require high temperature resistance. It is a filament non-woven fabric second only to nylon spunbond non-woven fabrics. Its excellent strength, good air permeability, tensile and tear resistance and anti-aging properties have been used by more and more people in various fields.

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