During the production period of polyester cotton, it is […]
During the production period of polyester cotton, it is unavoidable that some abnormal fibers are caused due to the conditions of the front spinning or the back spinning. Especially the recycled cotton produced by recycling chips is more likely to produce abnormal fibers. The abnormal fiber outsole can be divided into the following types;
(1) Single thick: Incompletely extended fibers. Such fibers are prone to cause abnormal dyeing and have less impact on non-woven fabrics that do not need to be dyed. Have serious implications.
(2) Parallel filaments: After stretching, two or more fibers stick together. Such fibers are prone to cause abnormal dyeing, and have less impact on non-woven fabrics that do not need to be dyed. Cloth or acupuncture has a serious effect.
(3) Gelatin: Broken or tangled filaments are generated during stretching, so that the fibers are not stretched to form hard cotton at all. This product can be divided into first-grade gelatin, second-grade gelatin, and third-grade gelatin. After the carding process, such abnormal fibers are often deposited on the card clothing, causing problems such as poor formation of the cotton web or broken nets. Such raw materials will cause serious quality defects to most non-woven fabric products.
(4) Oil-free cotton: During the extension, there is no oil on the fiber during driving due to poor vehicle conditions. This fiber usually has a dry feel. In addition to causing static electricity in the non-woven production process, it also causes semi-finished products to be processed on the finishing. problem.
(5) The above four kinds of abnormal fibers, single thick and parallel filaments are more difficult to be removed during the production of non-woven fabrics, and colloidal and oil-free cotton can be removed with a little attention of the production staff to reduce product quality defects.