Carding is a process that untangles and cleans fibers to produce a continuous sliver fit for further processing. Carding is done using a bow like a handheld tool that is tied with a nylon string. The string of the bow is plucked, holding the bow closer to cotton, these vibrations help untwine the cotton fiber. Once carding is done, the collected mass is arranged into layers and then rolled to form a thick roll of cotton called Slivers.