Polyester Staple Fiber is divided into large chemical fiber, medium chemical fiber and small chemical fiber. "Large chemical fiber", "Chinese chemical fiber" and "small chemical fiber" are the most obvious statements on the market, and there are no precise definitions. All three are for polyester staple fiber (polyester staple fiber), and other chemical fiber commodity varieties are not included for the time being. The difference is: simply put: "large chemical fiber" is usually planned larger chemical fiber companies with better quality slices directly produced fibers, technology is more advanced, equipment is mostly imported, commodity quality indicators are compared with ambition, and stable, spinnable performance is relatively high. On the contrary, many small chemical fibers on the market are now made of chips made of recycled materials such as coke bottles in production, and the technology is backward, and the equipment is mostly domestic, and the fiber quality is significantly affected, but the cost is much lower than that of large chemical fibers, and some yarns with low quality requirements can be mixed with some small chemical fibers.

The "large chemical fiber" product refers to the Polyester Staple Fiber spun by the direct spinning method of polyester melt or the direct spinning method of polyester slice with relatively sophisticated imported and domestic production equipment. Because the materials used in "large chemical fiber" commodities are basically qualified grade products, the quality indicators of its regular commodities are superior. "Large chemical fiber" polyester staple fiber is the leading material of cotton textile industry. "Large chemical fiber" production equipment is to eat "fine grain" equipment.

The vast majority of "China Chemical fiber" products and "small chemical fiber" product production equipment are produced by domestic small chemical fiber machinery factories. This kind of production equipment has a large distance from the production equipment used by "large chemical fiber" both in scale and in quality, so the products produced by using this kind of equipment and the products produced by "large chemical fiber" also have obvious quality differences. Because of this, "chemical fiber" and "small chemical fiber" equipment generally uses polyester chips and recycled polyester bottle flakes and bubbles as raw materials for polyester staple fibers. "Chemical fiber" and "small chemical fiber" production equipment is to eat "coarse grain" equipment.

Hai'an County Qinfeng Chemical Fiber Co., Ltd. specializes in production and sales：polypropylene staple fiber, Polyester Staple Fiber, functional polypropylene short fiber, functional polyester staple fiber, hydrophilic polyester staple fiber,  polypropylene, PP staple fiber, polyester staple fiber.