Polyester --- Polyester fiber is characterized by good air permeability and moisture removal. There is also strong resistance to acids and alkalis, and UV resistance. Generally, the fabrics with multiples of 75D are polyester, such as 75D, 150D, 300D, 600D, 1200D, and 1800D. The fabric is darker and rougher than nylon.
Polyester is easy to ignite, and it melts when it is near the flame. When it burns, it emits black smoke while melting. It shows a yellow flame and emits an aromatic smell. After burning, the ashes are dark brown lumps, which can be broken with fingers. Close to flame-flammable, soften and shrink. In the flame-curl, melt, burn slowly, produce small bubbles, the flame is very small, blue. Leave the flame-stop burning and self-extinguish. Burning smell-amino or celery smell. The characteristics of the residue-the ashes are hard and black in the shape of a ball, which is not easy to crush with fingers.
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