FILTER MEDIA LAYERS INCLUDING MIXED DIAMETER FINE FIBERS

    公开(公告)号:WO2021072117A1

    公开(公告)日:2021-04-15

    申请号:PCT/US2020/054837

    申请日:2020-10-08

    Abstract: This disclosure describes a high performing (including, for example, high efficiency and low pressure drop) filter media. The filter media includes a support layer and a layer of fine fibers wherein at least some of the fine fibers in the fine fiber layer having an average diameter at least 3 times the average fiber diameter of a smaller fine fiber in the fine fiber layer. The fine fiber layer may include multiple layers of fine fibers. In some aspects, the smaller fine fiber may be present in the same layer of fine fibers as the larger fine fibers. Additionally or alternatively, the larger fine fibers may be present in a first layer of fine fibers and the smaller fine fibers may be present in a second layer of fine fibers.

Patent Agency Ranking