The effect of bulk density on the tensile strength and air permeability of a nonwoven needle-punched fabric based on polyester fibers with a linear density of 1.7 tex is investigated. The bulk density of the fabric was varied by processing in the clearance between a heated roller and a conveyor belt. A twofold increase in tensile strength was achieved with a relatively small decrease in air permeability.

» Reference: 10.1007/s10692-020-10129-2

» Publication Date: 02/07/2020

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