Pleatable filter media

摘要

This invention is directed to a filter media for manufacturing pleated filters comprising a non-woven, needle punch felt including a blend of a first polyester fiber and a bi-component fiber wherein said bi-component fiber has a sheath and a core wherein said sheath has a melting point above 110° C. and said nonwoven felt has an efficiency of greater than 89% for particles size of 3 to 10 μm as determined by testing method ASHRAE 52.2. The invention can include a top portion and a bottom portion manufactured from a web made from a carding process that is cross lapped, cut and overlapped so that said top portion and said bottom portion are entangled by a needle punching process to create a homogeneous arrangement prior to applying heat and pressure to stiffen the media for pleating.

主权项

1. A filter media for manufacturing pleated filters, comprising:
a non-woven, needled felt comprising a blend of a first polyester fiber and a bi-component fiber, said first polyester fiber and said bi-component fiber being entangled by a needle punching process; and a conductive scrim integrated into the filter media, wherein said bi-component fiber has a sheath and a core and said sheath has a melting point above 110° C., said felt is stiffened and embossed with a pattern on each side of the felt, and said felt has an efficiency of greater than 89% for a particle size of 3 to 10 μm as determined by testing method ASHRAE 52.2.