From the perspective of foreign markets, the United States has developed a variety of functional polypropylene staple fibers such as antibacterial, flame retardant, antistatic, and antifouling 10 years ago. Western European countries have also successfully developed conductive, electric heating, bio-absorbable and degradable polypropylene. Especially in Japan, it has increased its investment in the research and development of functional polypropylene staple fiber and high-performance fiber, continuously introduced high-tech new products, and emphasized its use in decoration and industrial use, and broadened the application field of textiles. Japan's polypropylene functional textiles account for about 40% of its total textiles, or even a higher proportion. Mitsubishi Japan launched the environmentally-friendly polypropylene "Mitsubishi Pylen" earlier.

With the development of my country's polypropylene staple fiber technology, it has gradually become an important import and export country for polypropylene staple fiber. Data shows that from January to October 2019, my country's polypropylene staple fiber imports reached 248.2 tons, with an import value of 495,000 US dollars.