Abstract
This work highlights the relevance of punch density, needle penetration depth and basis weight on the nonwoven fabric’s properties. Fibre fineness-specific optimised carding parameters, that is feeder, cylinder and doffer speeds were used for the preparation of carded web to produce considered basis weight of carded batts. Fabric thickness, bursting strength, mean flow pore size, air permeability, air filtration efficiency and pressure drop were extensively investigated, and a relationship was developed using the Box–Behnken design. The punch density and needle penetration depth were optimised to achieve the required levels of mean flow pore size at constant basis weight for enhancing the air filtration behaviour of non-woven fabrics.
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