The upper wool, which is the most used for textile wool […]
The upper wool, which is the most used for textile wool, is usually called wool.
The wool fiber is thicker than the cotton fiber, has a certain curl, and has a scale covering the surface. Due to the presence of scales, wool is given a special property, namely fluffiness. The fluffing property refers to the fact that the wool is kneaded in warm water and washing liquid, and is bitten and felted together.
In the life, the hair product is shrunk after washing, and the density is increased. The fluffing is one of the reasons. If the scale is broken and the performance is smooth and flat, the wool product does not shrink. Therefore, machine-washed sweaters sold on the market are subjected to such surface treatment.