Application of newly developed fibre orientation measurement techniques for needle-punched nonwoven

Abstract

New structural characteristics based on tracer fibre and Lindsley’s techniques to measure the fibre orientation in X, Yand Z directions of needle-punched nonwoven have been investigated. The results are verified with variable cylinder speed,punch density and needle depth penetration. It is evident that measured structural characteristics and fabric tensile strengthshow very good correlation in machine direction but poor correlation in cross-direction.