The phenomena that the hook strength decreases continuously and the knot strength increases at first, and furthermore decreases with the twist increases have been observed through the knot strength and the hook strength experiments of the twisted aramid filaments.

Discussion on issues of smoke extraction of polyester filament spinning workshops;

Development of polyester filament core yarn sewing thread;

Production and technical characters of direct spinning line of polyester filament in large capacities;

Comparison of traditional and siro polyamide filament core-spun yarns;

Through investigations on the properties of polyamide filament, studies are made on the occurrence of warp streaks in water-jet weaving, and measures to eliminate such defects suggested, providing reference for water-jet weaving of polyamide filament fabrics.

Process characters of PET filament twisted by high temperature heater box;

Selection of spinneret for PET filament production;

TCS process for colored profiled PET filament;

Performance of BLQ-125 finishing oil for PP filaments;