The project is one of the first batch of production and research projects of the country. It belongs to domestic initiative, international advanced high-tech products. By studying the spinning can be used for the fine denier and superfine filament polypropylene resin for special purpose, to overcome the obstacles of fine denier polypropylene filament fiber developed and industrialized production of a series of technical problems, successively in the laboratory testing machine, domestic ordinary spinning, spinning successfully on imported high-speed spinning equipment and production of the 22 to 28 ~ 120 dtex / 120 f. Various specifications of fine denier, super fine polypropylene filament, stretch yarn, silk yarn and fine denier fiber with special function. The quality of fiber meets the requirements of the enterprise standard and the processing requirements, the production process is stable, the technological level is continuously improved, and the first realization of the high speed and colation of polypropylene filament filament. The project on the basis of basic research, for suitable for fine denier and superfine polypropylene fiber spinning, dyeing and finishing, garment processing features a series of process technology, successfully in knitting big garden machines, spindle, developed a novel design and color fabrics on shuttleless loom more than 60 kinds, developing hundreds of clothing. The product has good hydrophobic and moisture and thermal properties. It is a new product with high technical content. After the launch of the market, consumers are particularly favored, economic and social benefits are remarkable. This project not only realized the fine denier, the industrialization of super fine denier polypropylene fiber, also developed a series of functional follow-up of new products such as: 

dyeing, far infrared, antibacterial, health care, etc., can be given a higher value-added high-tech products, it will provide the product to occupy the domestic market further, open the international market to lay a solid foundation. The project takes advantage of the existing equipment of the enterprise to properly reconstruct and establish the manufacturing base of spinning and spinning. The purpose of "less investment, quick results and high efficiency" is realized. At present, the project has successfully formed "donghua jiuding super fine fiber co., LTD" and "Shanghai mengtai high-tech textile co., LTD.", and the industrialization work is progressing smoothly.

The main technical indicators of this project are:

Single filament is less than 1 dtex; Complex filament: 22 ~ 120dtex; The filament strength is greater than 3.0 cN/dtex; Breaking elongation: 20 ~ 60: winding speed: 400 ~ 3000m/min; Drafting speed: 200 ~ 1000m/min.