On October 9, 2022, SZHL Chemical Fiber Technology Corporation, China's leading manufacturer of high-performance superfine fibers, issued an announcement:
The company has realized the large-scale production of "melt direct spinning 5-8D/6f high uniformity super soft polyester fiber", which has the finest bus density in China. Its "overall technology is at the leading level in China, filling the gap in China".
The production technology of "melt direct spinning 5-8D/6f superfine fiber" has also been authorized by the State Intellectual Property Office.
SZHL adheres to the concept of "one silk to the extreme" and strives for excellence in the field of ultra-fine fibers. In 2021, SZHL will develop a finer 5-8D/6f super soft polyester fiber with high uniformity on the basis of superfine fiber 15d/72f and around the "finer" direction.
In the process of R&D, the company's ultra-fine fiber innovation team overcame difficulties. Through independent innovation, it solved technical problems such as uneven spinning of components in the production of ultra-fine fibers, large difference in spinning tension fluctuation, difficulty in drawing broken wires and forming, realized the upgrading of ultra-fine fiber preparation technology and product iteration, and also provided independent innovation strength for the high-quality development of the national advanced functional fiber industry.
Ultrafine fiber can be used in the electronic information industry, such as mobile phone circuit board, radio wave shielding substrate, etc. It is a high-end chemical fiber new material.
SZHL is also the only company in China that can mass produce FDY products with specifications of 7D and below.
In addition, 22dtex/96f and 35dtex/144f microfibers have been successfully developed and mass produced by the company, which are widely used in electronic information, high-end clothing, automotive interior and other fields in the market.