Abstract: By analyzing the technical characteristics of the latest vortex-spinning equipment, the paper explores the latest development trend in vortex-spinning equipment. It is found that the speed of vortex spinning has been rapidly increased, and can reach up to 600 m/min, which is four times the speed of conventional rotor spinning and more than 30 times the speed of ring spinning. The speed of air-jet vortex spinning is increased; the product adaptability is stronger, which can meet the development needs of functional yarns with various raw materials and characteristics. Taking five new types of functional yarns developed by air-jet vortex-spinning enterprises in recent years as examples, the performance characteristics,product uses and key technologies in production are preliminarily analyzed, to provide practical experience and technical reference for vortex-spun product development and process innovation research.

Key words: air-jet vortex spinning; equipment; technical characteristics; product development