
The process of loosening the compressed and entangled fiber materials and removing impurities. Various fiber raw materials for spinning, such as raw cotton, wool, chemical staple fiber and cotton, linen, polyester, rags, etc., are mostly transported into the textile factory in the form of bundles. The packing density of raw materials is generally 200-650 kg/m3, and the packing density of raw cotton in China is about 330-400 kg/m3. In order to spin high-quality spun yarn, it is first necessary to loosen the raw materials, remove various impurities, and mix them evenly. The opening quality of fiber raw materials has an important impact on the quality of semi-finished products and finished yarns, as well as saving materials.
effect
It is mainly to loosen fibers, cotton, textiles and other materials, and the large tangled fibers are loosened into small pieces or bundles through tearing, and at the same time, it is accompanied by mixing and impurity removal during the loosening process. The opening machine is generally composed of a pair of feeding rollers or feeding rollers and an opening cylinder. The opening cylinder is equipped with corner nails or comb needles or card clothing or porcupine thugs for more thorough opening. There are working rolls and stripping rolls on the cylinder. Different structures make the opening effect, mixing effect, and impurity removal effect have obvious differences. Therefore, different forms of opening machines should be used on production lines with different requirements. The opening machine can also be selected according to the raw materials to be processed, and the opened fibers are then fed to the carding machine for processing.