Filtration media fiber structure and method of making same

摘要

Fiber structures and methods are described that incorporate a body of a micron fiber modified by the attachment of discrete length, crimped nano-fibers. Numerous of these modified fiber structures can be assembled into air filter media. Further augmentations of the modified fibers and media can be implemented to improve filtration characteristics.

主权项

1. A fiber structure, having an upstream side and a downstream side, comprising:
a plurality of micron-sized fibers, each micron-sized fiber comprising a body having a diameter of at least one micron; and a plurality of discrete length crimped nano-fibers attached to respective ones of the bodies of the plurality of micron-sized fibers, the plurality of discrete length crimped nano-fibers extending into at least one pore defined between respective ones of the plurality of micron-sized fibers for a distance not longer than half a distance across an average size of the at least one pore.