The influencing factors of quality on yarn evenness are mainly reflected in the following four aspects. Grasping the following relationships and mixing good cotton are the most basic prerequisites for spinning high-quality yarn.
The influence of the fineness of raw cotton fiber on the yarn evenness
★The fineness is fine, the unevenness of fineness is low, and the number of fibers in the cross-section of the yarn is large. Evenly distributed, even yarn evenness;
★The fineness is relatively coarse, and when spinning fine yarn, the yarn evenness deteriorates significantly;
★If the fineness is too fine, there will be more appearance defects, difficult processing, and poor yarn quality;
★When the fineness is the same, the thicker the yarn number will be, The better the evenness of evenness.
The influence of defect content in raw cotton on yarn evenness
★Many defects interfere with the normal displacement of fibers during the drafting process, resulting in uneven yarn quality;
★Excessive defects may easily produce thick spots and uneven yarn quality, etc. Yarn defects;
★The yarn has many neps and impurities, which are wrapped in the inner and outer layers of the yarn, directly affecting the yarn dryness.
The influence of short fiber content in raw cotton on yarn evenness
★There are many short fibers, and the fiber movement is difficult to control during the drafting process, resulting in poor yarn evenness. The shorter the short fibers, the worse the yarn evenness;
★The length is neat, the short fibers are less, the drafting movement is normal, and the yarn evenness is uniform.
The maturity of fibers in raw cotton affects the evenness of the yarn The influence of
★The fiber is mature, soft to the touch, and the yarn is evenly dry;
★The maturity coefficient is slightly lower, and when the fineness is thinner, it will have a negative effect on the yarn. Uniform yarn dryness is advantageous;
★The maturity coefficient is low, there are many short piles and defects, and although the fineness is fine, the finished yarn has poor dryness. </p
