Acrylic is the second most widely used synthetic fiber after polyester and polyamide. It is soft, lightweight, warm, corrosion-resistant, light-resistant wool-like staple fiber. Less dense than wool. Known as faux wool. Although lighter than wool, it is stronger. Acrylic is not only mildew-proof and moth-eaten, but also more resistant to sunlight than wool and cotton. Therefore, the wool made of it, especially the light and soft bulky wool, has long been loved by people.