Acrylic yarn is the trade name for polyacrylonitrile fiber in my country. The acrylic yarn has excellent performance. Because its properties are close to wool, it is called "synthetic wool". The "artificial wool" extracted from petroleum by acrylic yarn is easy to be confused with the "artificial wool" in viscose fiber, so it was later called "synthetic wool". Acrylic blended wool and artificial fur are now available on the market. , This kind of "synthetic wool" is used. The breaking strength of the acrylic fiber is 1 to 2.5 times higher than that of wool, and the woven fabric or blended wool is more durable and durable than pure wool agricultural materials or wool.

　　The specific gravity of acrylic fiber is only 1.14-1.17 g/cm3, which is lighter than wool (the specific gravity of wool is 1.3-1.32 g/cm3). Because acrylic fiber is light in weight and fluffy in volume, it can hold a lot of air, so it has good thermal insulation.

　　The light resistance and weather resistance of acrylic yarn is the best among all natural fibers and chemical fibers except fluorine-containing fibers. Experiments have shown that if the following fibers are also exposed to the sun for one year, the strength of nylon, viscose, and silk is completely destroyed, the strength of cotton is reduced by 95%, and the strength of the acrylic fiber is only reduced by 20%. Therefore,

　　Acrylic can be blended with cotton, wool, or viscose in different proportions, and these fabrics can be made into woolen, blanket, wool, artificial fur, work clothes, military tents, curtains, umbrella cloth, and so on. Acrylic fibers are especially suitable for making various outdoor products.