Fake. In the 1970s, when many people's parents were young, there was a very fashionable clothing material called polyester, which was a brand of polyester fabric produced by American companies. Compared with natural fibers such as cotton, silk and wool, polyester, nylon, viscose and modal belong to synthetic fibers that are not found in nature, so they all belong to chemical fibers.

If chemical fiber fabrics are only washed with water, a small amount of water-soluble silicone oil such as 204 can generally eliminate most static electricity, so as to obtain good dryness and softness and be comfortable to the skin. Organic solvents such as alcohols, esters, ketones and aromatic hydrocarbons may easily cause irreparable damage because they may physically dissolve these fiber molecules. Among the varieties of silicone oil, polydimethylsiloxane with inert lubrication is the main one.