Carding
The card is the most important machine in the yarn manufacturing process.
It performs second- and final-level cleaning functions in an overwhelming majority of cotton textile mills. The card is composed of a system of three wire-covered cylinders and a series of flat, wire-covered bars that successively work small clumps and tufts of fibers into a high degree of separation or openness, remove a very high percentage of trash and other foreign matter, collect the fibers into a rope-like form called a “sliver” and deliver this sliver in a container for use in the subsequent process.