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Estimation of the air permeability of needlepunch materials

Research paper by A. V. Dedov

Indexed on: 01 Nov '07Published on: 01 Nov '07Published in: Fibre Chemistry



Abstract

The effect of the structure of needlepunch materials on their air permeability is a function of the structural parameters and combinations of these parameters selected. The filling factor does not reflect the effect of the structure of the needlepunch materials on their air permeability; using it together with the surface density is optimum. The effect of the needlepunching conditions on the air permeability of materials is determined with combinations of the filling factor and thickness.