Cotton bale
Farmers who grow cotton picking cotton after it matures, of course, in this process, try to reduce impurities such as cotton leaves and weeds. After the cotton factory receives the cotton, the cotton will be graded according to national standards, and then cotton quilts will be made through the ginning process and further sold to the spinning mill. After receiving the bale, the spinning mill will carry out a series of treatments, including cleaning, carding, drawing, strip winding, combing, two (and three) drawing, roving, spinning, winding, doubling and twisting, etc.
Cotton cleaning
The main function of cleaning cotton is to clean up the impurities in the cotton. Before the bale enters the cleaning machine, workers will open the bale for preliminary cleaning and remove the obvious impurities and foreign bodies. The cotton bag is loosened into an evacuation free state by a cotton cleaner, which mixes and removes impurities so that the cotton is evenly mixed and the quality of the cotton yarn is guaranteed.
Carding
Carding is to carding raw cotton, carding raw cotton into a single fiber state, improve the length and orientation of cotton fibers, and then carding into strips, so as to facilitate subsequent drafting into strips and other processes. Carding process can also further go out to clear uncleared neps, impurities and staple staple and other fiber defects, help the fibers to fully mix, improve uniformity. Carding cotton into a certain weight, length, uniform thickness, good shape cotton roll after drafting to meet the requirements of the sliver. In the drafting process, the sliver is drawn to a certain thickness and the parallel straightness of the fibers is improved.