The sliver is collected in a sliver can in preparation for roving. Combing For high quality yarns the sliver is combed after carding to make the fibers more parallel and remove smaller fibers. Drawing Slivers are then drawn out, blending the fibers and making them more parallel. No twist is added to the sliver during drawing. Several slivers can be blened together during drawing.
Slivers can go through multiple drawings for further parallelization and blending.
Roving Drawn out slivers are then fed to the roving frame where they are drawn further while a slight twist is added. The roving strands are collected in cans and fed to the spinning machine. Spinning The spinning machine draws out the roving strand adds twist, and winds the yarn onto bobbins. Winding Multiple bobbins of yarn are then wound onto larger spools called cheeses. Now the yarn is ready for texturing and dying and finally weaving into fabric.