FILTER MEDIA INCLUDING FINE STAPLE FIBERS

摘要

Filter media comprising fine staple fibers and related components, systems, and methods associated therewith are provided. In some embodiments, a filter media may include a layer (e.g., a wet laid layer) comprising polymeric staple fibers having a relatively small average diameter (e.g., less than or equal to about 1 micron). The polymeric staple fiber layer may be designed to impart desirable properties to the filter media, such as a high particulate efficiency and/or fluid separation efficiency, while having relatively minimal or no adverse effects on one or more properties of the filter media that are important for a given application. The filter media, described herein, may be particularly well-suited for a variety of applications.

主权项

1. A filter media comprising:
a first layer comprising a first plurality of polymeric staple fibers having an average fiber diameter of less than or equal to about 3 microns and an average length of less than or equal to about 10 cm; and a second layer comprising fibers having an average fiber diameter of greater than or equal to about 4 microns, wherein the first plurality of polymeric staple fibers are formed of a material having a greater hydrophobicity than a hydrophobicity of the second layer, and wherein the filter media has an air permeability between 0.3 CFM and 300 CFM and a basis weight of between 5 g/m2 and 1,000 g/m2.