(1) Single thick: Incompletely extended fibers, which tend to cause abnormal dyeing, have less effect on medical nonwoven fabrics that do not need to be dyed, but are used for water-based cloth or needle-punched fabrics for artificial leather base fabrics. There is a serious impact.

(2) merging: two or three fibers are stuck together after stretching. Such fibers are likely to cause abnormal dyeing, and have less effect on medical non-woven fabrics that do not need to be dyed, but for water used for artificial leather fabrics. Card clothing or needle cloth has a serious impact.

(3) Colloidal: Broken or entangled yarn during extension, so that the fiber does not extend at all to form hard cotton. This product can be divided into first-grade gelatinous, second-grade gelatinous, tertiary gelatinous and the like. Such abnormal fibers are often deposited on the clothing after the carding process, causing problems such as poor formation of the cotton web or broken net. Such raw materials will cause serious quality defects for most of the medical non-woven fabrics.

(4) Oil-free cotton: During the extension period, there is no oil on the fiber during the driving condition. This fiber usually has a dry feel. In addition to causing static electricity in the medical non-woven production process, it also causes the semi-finished product to be finished. The problem.

(5) The above four kinds of abnormal fibers, single root and merging are difficult to be removed during the production of medical non-woven fabrics. Colloidal and non-oily cotton can be removed as long as the production personnel pays little attention to reduce the defects of product quality.