Fine Denier, Ultrafine Polypropylene Filament and Products

This project is the first batch of production, research and research projects in the country. It is a domestic first and internationally advanced high-tech product. By studying the special polypropylene resin that can be used to spin fine denier and superfine denier filaments, it has overcome a series of technical problems that hinder the research and development and industrialization of fine denier polypropylene filament fibers, successively in laboratory testing machines, domestically produced ordinary Spinning and imported high-speed spinning equipment successfully spun and produced 22 to 120 dtex/28 to 144f. Within the scope of a variety of fine denier, ultrafine polypropylene stretched yarn, elastic yarn, colored yarn and fine fibers with special functions. The fiber quality meets the corporate standards and post-spinning processing requirements. The production process is stable and the process level is continuously improved. It is the first to realize the high speed and coloration of polypropylene fine denier filaments. Based on the basic research, this project explores a series of process technologies that are suitable for the spinning, dyeing, finishing, and garment processing of fine denier and ultra-fine denier polypropylene fibers. The shuttle loom has developed more than 60 kinds of novel fabrics and over 100 garments. The product has good hydrophobic and moisture-retaining properties and is a high-tech new product. After being put on the market, it was particularly favored by consumers, and the economic and social benefits were very significant. This project has not only realized the industrialization of fine denier and ultrafine denier polypropylene fibers, but also developed a series of functional follow-up new products such as dyeable, far infrared, antibacterial and health care, which can give this high-tech product higher Added value, which will lay a solid foundation for the product to further occupy the domestic market and open the international market. This project utilizes the company's existing equipment and makes appropriate modifications to establish a spinning and spinning post-processing production base. The goal of “less investment, quick results, and high efficiency” has been achieved. At present, the use of this project has successfully established "Donghua Jiuding Microfiber Co., Ltd." and "Shanghai Mengtai High-tech Textile Co., Ltd.", and the industrialization work is proceeding smoothly.
The main technical indicators of this project are:
Monofilament denier ≤ 1 dtex; Multifilament denier: 22 to 120 dtex; Multifilament strength ≥ 3.0 cN/dtex; Elongation at break: 20 to 60: Winding speed: 400 to 3000 m/min; Draft Stretching Velocity: 200 ~1000m/min.