Why do pet non-woven fabrics are usually white or transparent

100% polyester chips are the raw material of pet polyester spun-bonded non-woven fabrics. This kind of non-woven fabric is what we call a filament nonwoven cloth. Pet is milky white or light yellow, highly crystalline polymer, commonly known as polyester. Surface smooth, glossy. In relatively wide temperature range with excellent physical and mechanical properties, long-term use of up to 120 ℃ temperature, excellent electrical insulation, even under the high temperature and high frequency, its electric performance is good, but the corona resistance is poorer, creep resistance, fatigue resistance, frictional resistance, dimension stability is very good. Pet spun-bonded non-woven is the use of the material by spun-bonded hot rolling. The supply of pet polyester spun-bonded non-woven fabric is a kind of waterproof non-woven, according to the g major non-woven repellent properties vary little. G, the more thick, the greater the waterproof performance is better. If there is water on non-woven fabric surface, water will drop from surface directly. And high temperature resistance. For polyester about 260 ° C, the melting point of pet polyester spun-bonded non-woven in need of heat-resistant environment, can maintain the stability of non-woven fabric dimension performance. Has been widely used in heat transfer printing, transmission oil filter, and need some high temperature resistant composite material. A filament is second only to the nylon spun-bonded non-woven non-woven fabric. Its good strength, good permeability, tensile resistance to tear and anti-aging performance has been more and more people are applied in all fields.