Добавлю свои пять копеек Правда, на инглише.Rayon is a manufactured regenerated cellulose fiber. Because it is produced from naturally occurring polymers, it is neither a truly synthetic fiber nor a natural fiber, it is a semi-synthetic fiber.[1] Rayon is known by the names viscose rayon and art silk in the textile industry. It usually has a high lustre quality giving it a bright sheen. Rayon contains the chemical elements carbon, hydrogen, and oxygen.Короче, это полусинтетический материал, который делают из целулезы Как и вискозу.