Bitkisel ipek

Also known as viscose, artificial silk, viscose fiber, acetate filament

thumb|Rayon is made by dissolving cellulose and then precipitating it into a fiber. One method is shown here using a blue solution of cellulose (Schweizer's reagent|cuprammonium hydroxide used to dissolve) and colorless sulfuric acid to precipitate. The blue color fades from the fiber over time.