Regenerated Cellulose (Viscose Rayon)

Properties and Applications

Regenerated cellulose (also called Lyocell, viscose Rayon or Cellophane) is a colorless, transparent and non-toxic pure cellulose product. It is produced from shredded wood pulp, which is treated with caustic soda. The so-called viscose is subsequently extruded into a bath of dilute sulfuric acid and sodium sulfate to regenerate the cellulose. The chemically treated and dissolved cellulose is either chemically spun into fibers (Viscose Rayon) or converted into a film (Cellophane).¹

The mechanical properties of regenerated cellulose, such as tensile strength, flexibility and stiffness, depend on the composition, i.e. amount of plasticizer or softener, and moisture content. Many grades of regenerated cellulose have high strength, low elongation and good water absorbency and find many industrial uses where these three properties are required. Major applications include apparel, upholstery, filters, tire cords, hoses, surgical materials, feminine hygiene products, bioplastic films, and linings for a variety of other products.

Manufacturers & Distributors

¹The first commercial transparent regenerated cellulose film was produced by Brandenberger of Neuilly sur Seine, France, in 1908
Source: W.L. Hyden, Ind. Eng. Chem., 1929, 21 (5), pp 405–410