Wool and cashmere are very common fabrics for clothing and home textiles in life. So which one is more popular with the public, and what are their characteristics?
Compared with wool, the cortex content of cashmere is higher than that of wool, and the rigidity of cashmere fiber is better than that of wool, that is, cashmere is softer than wool. The unevenness of the fineness of cashmere is also smaller than that of wool, and the appearance quality of its products is better than that of wool. The fineness of cashmere fiber is uniform, its density is smaller than that of wool, its cross-section is mostly regular circle, and its products are lighter and thinner than wool products. In addition, the hygroscopicity of cashmere is better than that of wool, which can fully absorb dyes and is not easy to fade. The moisture regain is high and the resistance value is relatively large. Furthermore, the acid and alkali resistance of wool is better than that of cashmere, and it is less damaged than cashmere when it encounters oxidants and reducing agents.
Due to the particularity of the fiber itself, there are many factors that cause the pilling of cashmere products:
(1) Fiber length: The pilling degree of fabrics woven with longer fibers is lighter than that of fabrics woven with shorter fibers. Due to the small number of fiber ends per unit length, there is also fewer fiber ends exposed to the surface of the yarn and fabric.
(2) Fiber fineness: coarse fibers are less prone to pilling than fine fibers. The yarn spun from coarse fibers has fewer fibers per unit area, and fewer fiber ends are exposed on the surface of the yarn and fabric; in addition, the thicker and stiffer the fibers are, the fibers on the surface of the fabric are not easily entangled into balls.
(3) The degree of crimp of the fiber: the crimp of the fiber is more, the cohesion between the fibers is large, the friction increases, the fiber is not easy to free to the surface of the fabric, and it is not easy to pilling.