Rayon is one of the first successful artificial man-made fibers, although it is not considered synthetic. It is made from cellulose (plant). When manufactured, the rayon fibers resemble silk. This fiber is just as versatile and comfortable as natural fibers, such as cotton.
Under the microscope, the rayon fiber looks like a smooth, lustrous, glass-like cylinder, easily stretchable, doesn't wrinkle, is soft and absorbent and easy to dye, but is not a good insulator. Rayon can be made into cloth that is hard to distinguish from silk, cotton, linen, or wool.
Burn Test: Burned with a steady, rapid orange flame, smells of burning leaves, but no ash present.