3 ways to identify polyester fabrics:

3 ways to identify polyester fabrics:

1. Judging by the combustion method: when polyester burns, it will curl, melt, and burn with smoke; the flame will be yellow, accompanied by an aromatic smell; the ashes after burning will appear in the shape of dark brown glass balls. If you twist it with your hands, the ashes can be crushed.

2. To determine whether it is polyester staple fiber or polyester filament, you can judge by the yarn specification description. Usually, the unit of short fiber is S and the unit of filament is D, so yarn specifications 32S and 21S are generally polyester staple fiber, while 75D and 100D are polyester long fiber.

3. Directly identify short-fiber filaments by hand: Because polyester short-fiber yarn is formed by twisting a plurality of short fibers clockwise or counterclockwise, rotate the yarn left and right and twist it. If it breaks, it is a short-fiber yarn, not The ones that will break are filaments, so we can distinguish them.