Fuente: Textiles (MDPI) Textiles, Vol. 6, Pages 39: Effect of Material, Number of Yarns, and Loop Length on Pressure, Stretchability, and Thermal Properties of Seamless Knitted Fabrics for Compression Textiles
Textiles doi: 10.3390/textiles6020039
Authors:
Nga Wun Li
Mei-Ying Kwan
Kit-Lun Yick

Compression textiles have been widely applied in medical, sportswear, and daily usage, with single-jersey structures produced by circular knitting dominating the market due to their thinness and light weight. However, the presence of seams may compromise compression performance and wearer comfort. This study investigates the effects of yarn type, number of yarns, and loop length on pressure, stretchability, and thermal comfort of seamless punch-lace knitted fabrics and explores their potential application in compression textiles. The results show that yarn number is the dominant factor influencing fabric stiffness, stretchability, and pressure. Fabrics with increased yarn content demonstrate higher maximum load and compression pressure. Smaller loop lengths and additional reinforcing yarns improve dimensional stability and resistance to extension. Air permeability decreases with increasing yarn number due to increased fabric thickness and reduced porosity, while thermal conductivity increases and is positively associated with ventilation resistance, indicating a trade-off between heat transfer and breathability. Surface friction and roughness are significantly affected by yarn number, yarn type, and loop length, whereas water vapour permeability shows no significant relationship with the investigated variables. Overall, seamless punch-lace knitted fabrics demonstrate strong potential for compression applications, although careful design is required to balance breathability and thermal comfort.