<P> Spinning is the twisting together of drawn - out strands of fibers to form yarn, and is a major part of the textile industry . The yarn is then used to create textiles, which are then used to make clothing and many other products . There are several industrial processes available to spin yarn, as well as hand - spinning techniques where the fiber is drawn out, twisted, and wound onto a bobbin . </P> <P> Artificial fibres are made by extruding a polymer through a spinneret into a medium where it hardens . Wet spinning (rayon) uses a coagulating medium . In dry spinning (acetate and triacetate), the polymer is contained in a solvent that evaporates in the heated exit chamber . In melt spinning (nylons and polyesters) the extruded polymer is cooled in gas or air and sets . All these fibres will be of great length, often kilometers long . </P> <P> Natural fibres are from animals (sheep, goat, rabbit, silkworm), minerals (asbestos), or plants (cotton, flax, sisal). These vegetable fibres can come from the seed (cotton), the stem (known as bast fibres: flax, hemp, jute) or the leaf (sisal). Without exception, many processes are needed before a clean even staple is obtained . With the exception of silk, each of these fibres is short, being only centimetres in length, and each has a rough surface that enables it to bond with similar staples . </P>

Why is it necessary to spin the fibres so as to make yarn