Mechanical properties of fibres viz. tensile modulus, tenacity, elongation are the key performance indicators of cut resistance besides yarn and fabric structure. P-aramid and UHDPE (Ultra High Density Polyethylene) based high performance fibres are most commonly used for protection against mechanical risks. Specially engineered yarns and fabrics with enhanced cut resistance are being developed for specialized applications.
This paper gives some insight on influence of fibre composition, area density and structure configuration on the performance of cut resistant textiles made from Kevlar (p-aramid). The cut resistance value (Force 20mm) as per ISO 13997 varies from 400 g to 500 g for different fabrics. Whereas a breathable a three tier, breathable engineered laminate (BOP ) developed using Kevlar knit fabric and foam showed a 20% increase in cut resistance value. To read more,
This article was originally presented at ATNT 2011. The author of this article K. Rajendrakumar is associated with AccuMED Technologies India Pvt Ltd, Coimbatore and Dr. G. Thilagavathi is associated with Department of Textile Technology PSG College of Technology, Coimbatore.