Wound polypropylene yarn filter cartridge and method for making same

摘要

A filter cartridge formed of wound polypropylene yarn lacking a spin-finish and method of making same are disclosed herein. The method includes the steps of: providing a filter core; providing a plurality of continuous polypropylene filaments; applying water to the filaments without applying a spin finish to remove static therefrom; gathering together a plurality of the filaments to form at least two bundles; air texturing the at least two bundles of filaments to form a yarn; and winding said yarn around said filter core to provide a filter media.