Alpaca fiber, silk and cotton are naturally occurring protein fibers – as in alpaca fiber, after shearing, the vegetable and animal matter on the fleeces are picked out, then the fiber gets tumbled and vacuumed. It is washed, dried and combed. Combing out the web of fiber opens up the locks. This produces a smoother, finer, stronger and more uniform roving for yarn spinning than otherwise would be possible. Carding follows the combing process and this is to subject the fiber in to a dividing and re-dividing action using an attempt to separate each fiber from its neighbor and form a fluffy but coherent mass (fiber web). The idea is to facilitate the removal of impurities as well. Drawing out the fiber follows next and that is to improve fiber orientation by aligning the fibers in one direction. Drawing is also employed in blending. The fiber quality has it greatest impact in strength in this process.