The main component of sock yarn, combed cotton - Combed cotton is the long, neat cotton fibers that are left after removing the shorter fibers from ordinary fibers with a machine called a comber. Due to the removal of short cotton fibers and other fiber impurities, the cotton yarn spun from combed cotton is more delicate, and the finished product has a smoother and more comfortable feel, which is the best quality in cotton. Spandex - Spandex is commonly known as elastic fiber. It has high elasticity and strong stretchability. Its stretched length can reach 5-7 times that of the original fiber. Textile products added with spandex can maintain the original outline. Socks must contain spandex in order to make the socks elastic and retractable, easier to wear, and make the socks more close to the feet, like a swimsuit, which can be tightly wrapped around the footsteps without slipping off. Nylon-Nylon is the name of a synthetic fiber with Chinese characteristics, and people are more familiar with another name, nylon.

The chemical molecules of black polypropylene yarn are also very different and are composed of polypropylene fibers. Polypropylene has good heat resistance, and the products can be read at temperatures above 100 °C, and will not deform at 150 °C under the condition of no external force. The embrittlement temperature is -35 °C, and embrittlement occurs below -35 °C, and the cold resistance is not as good as polyethylene. The reported values for the glass transition temperature of polypropylene are 18qC, 0qC, 5℃, etc. This is also because people use different samples, which contain different ratios of crystalline phase and amorphous phase, so that the chain length of the amorphous part of the molecular chain is different. caused. The melting temperature of polypropylene is about 40-50 higher than that of polyethylene, about 164-170 °C, and the melting point of 100 isotactic polypropylene is 176 °C. It is relatively stable to various other chemical reagents, but low molecular weight aliphatic hydrocarbons, aromatic hydrocarbons and chemical hydrocarbons can make polypropylene swell and swell, and its chemical stability also increases with the increase of crystallinity. Polypropylene is suitable for making various chemical pipes and fittings, and has good anti-corrosion effect. It is because there are so many good points that the role of polypropylene yarn is more and more, and the market is getting bigger and bigger.

Bamboo charcoal fiber yarn is also widely used in food and various daily necessities. After the bamboo charcoal is ground into powder, it is added to the food to make bamboo charcoal cheesecake, bamboo charcoal puffs, bamboo charcoal biscuits, bamboo charcoal Swiss rolls, bamboo charcoal jelly, bamboo charcoal pudding, There are also bamboo charcoal coffee, bamboo charcoal beans, bamboo charcoal jelly, bamboo charcoal senbei, bamboo charcoal udon noodles, bamboo charcoal ramen noodles, and can also remove some of the odors of the food itself, such as fishy smell, sheep mountain flavor, etc. In daily life, bamboo charcoal has been widely used in underwear products, shirts, T-shirts, socks, towels, bedding and sports and leisure wear, etc., and it has also been applied to daily necessities such as toothpaste and shampoo.