The Effect Of Laying Direction On the Characteristics of Nonwoven Fabrics

In this study, the effect of laying directions (cross or cross/parallel) on the mechanical and permeability properties of nonwoven fabrics produced with polyester/viscose blends was investigated. For this purpose, nonwoven fabrics made of 70% viscose/30% polyester were produced with card line and these webs were overlaid in cross-wise or cross/parallel directions to obtain the final fabric. Then, mechanical properties such as breaking strength and elongation, air permeability properties, water absorption percentages were measured in order to determine the effect of laying direction on the properties of the fabrics. Increasing the parallel web ratio in the cross direction decreased the breaking strength values, on the contrary, increasing the parallel webs ratio in the machine direction increased the breaking strength values of the final product based on the fibre orientation