Impurities are non-fibrous substances, foreign fibers or colored fibers mixed in the fiber. Impurities not only affect the amount of fiber used in spinning, but also affect the spinning process and the quality of yarn and fabrics. Since coarse impurities are heavier than fibers, they are easily separated from the fibers and eliminated. Small impurities, especially small impurities associated with fibers, are difficult to remove during the spinning process. While impurities are being eliminated, coarse impurities are split into fragments due to the impact of rotating machinery. Therefore, during the spinning process, although the weight of impurities is getting smaller and smaller, the number of particles is increasing, thus affecting the appearance of the finished product. quality.
Defects are substances harmful to spinning, generally It is difficult to remove during the spinning process, or is wrapped in or attached to the yarn sliver, which deteriorates the yarn dryness, increases breakage, and worsens the appearance, directly endangering the spinning production and the quality of the final product.
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