In yarn manufacture, process of attenuating a loose assemblage of fibres.

or drafting These fibres, called sliver, pass through a series of rollers, which straighten the individual fibres and make them more parallel. Each pair of rollers spins faster than the previous one. Drawing reduces a soft mass of fibres to a firm uniform strand of usable size. For synthetic fibres, drawing is a stretching process applied to fibres in the plastic state, increasing orientation and reducing size.