INNOVATIONS IN ULTRAFINE FIBERS: BREAKING BOTTLENECKS & FUNCTIONAL ADVANCEMENTS

1. Nanofiber Mass Production Breakthroughs

• ​Japan Toray Corporation:
  • Launched ​**”Nano Spider Silk” technology**, producing fibers as thin as ​0.05 micrometers (1/200 the diameter of a human hair) with ​15x higher absorbency than traditional materials.
  • ​Current Limitation: Lab-grade cost remains high (~¥800 per kilogram).
• ​China Hengsheng New Materials:
  • Developed ​**”Electrospinning + Microwave Setting” process** to achieve continuous nanofiber production.
  • ​Key Achievement: Yield rate reaches ​92%​ (vs. industry average of 75%).

​2. Functional Composite Technology Innovations

• ​Self-Cleaning Coatings:
  • ​China University of Science and Technology team: Created ​photocatalytic titanium dioxide coatings that decompose oil stains under UV light, extending Towel lifespan by ​3x.
• ​Thermoregulating Fibers:
  • ​U.S. PolyTech Corporation: Introduced ​phase-change material (PCM) fibers that regulate surface temperature (32℃-42℃) based on body heat.
  • ​Application: Already used in ​sports rehabilitation (e.g., cooling/warming compression garments).