Staple fibers are all natural fibers except for the silk that are twisted together to form yarns. Staple fibers vary in length and available in a wide range of compositions. Staple fibers can be manufactured either from wool, raw cotton, flax or hemp. The most common raw material used for manufacturing staple fiber is wool and cotton. However, it is also manufactured from the other raw materials such as alpaca, angora, mohair and flax. Filament fibers are usually cut into shorter lengths either for spinning using a specific type of fiber or in the various combinations of natural fibers that are also considered to be the staple fibers. Staple fibers are either short filaments having length of about 21/2 inches and filaments are known as longer staples when they have length more than that of 21/2 inches. Cotton is a short staple fiber that ranges from roughly 1 inch to almost 2 inch in length on the other hand wool is a long staple fiber which ranges from about 21/2 inches to 6 inches.
