Effect of dynamic loading on jute-based needle-punched nonwoven fabrics

Abstract

<span style="font-size: 16.0pt;font-family:Fd579630-Identity-H;mso-bidi-font-family:Fd579630-Identity-H">The effect of dynamic loading on jute and jute-polypropylene blended needle-punched nonwoven fabrics has been studied. It is observed that with the increase in cycles of dynamic loading, the thickness loss increases with diminishing rate up to a certain limit and thereafter it does not change. Thickness loss decreases with the increase in punch density, depth of needle penetration and area density up to a minimum value beyond which it increases. The recovery from compression increases with the increase in above parameters. As the proportion of polypropylene fibre increases in the blend with jute, the thickness loss as well as relaxation from compression increases. Chemically texturized jute fibre, fibre laying technique and hessian reinforcement have a great effect on thickness loss as well as recovery from compression due to dynamic loading.

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