POLYESTER HOLLOW SPUNBOND NONWOVEN FABRIC FOR AIR FILTER AND METHOD OF PREPARING THE SAME

摘要

PURPOSE: Polyester hollow spunbonded nonwoven fabric for an air filter and a manufacturing method thereof are provided to consecutively manufacture the fabric with a single process, and to improve bulkiness, air permeability and processability. CONSTITUTION: A manufacturing method of polyester hollow spunbonded nonwoven fabric for an air filter includes the following steps: forming the polyester hollow spunbonded nonwoven fabric of a diameter of 22-40 μm by spinning the polyester fiber materials with a spinneret; forming a filament web by laminating the polyester hollow filaments; and compressing and heating the filament web. The inherent viscosity of the polyester fiber is 0.6-0.7. A discharging rate of the spun polyester melting materials is 0.1-25g/min.hole.