Cotton

Harvested cotton needs to be cleaned before going to the gin. Often, the cotton is dried before it is put through the cleaning equipment which removes leaves, dirt, twigs, and other unwanted material. After cleaning, the long fibers are separated from the seeds with a cotton gin and then packed tightly into bales of 500 lb (227 kg). Cotton is classified according to its staple (length of fiber), grade (color), and character (smoothness). At a textile mill, cotton fibers are spun into yarn and then woven or knitted into cloth. The seeds, still covered with linter, are sent to be pressed in an oil mill.