Fibrillated fibers for liquid filtration media
AssigneeHollingsworth & Vose Company
InventorsHoward Yu, Sneha Swaminathan
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Abstract
Fiber webs which are used in filter media are described herein. In some embodiments, the fiber webs include fibrillated fibers and optionally non-fibrillated fibers, amongst other optional components (e.g., binder resin). In some embodiments, the fiber webs include limited amounts of, or no, glass fiber. The respective characteristics and amounts of the fibrillated fibers are selected to impart desirable properties including mechanical properties and filtration properties (e.g., dust holding capacity and efficiency), amongst other benefits.
Claims20
A filter media, comprising:
- a fiber web comprising fibrillated fibers and non-fibrillated synthetic fibers, wherein the non-fibrillated synthetic fibers are staple fibers;
- and
- wherein the fiber web has a [mean flow pore (μm)/(permeability (cfm/sf))0.5] value of greater than or equal to 0.5.
A filter media, comprising:
- a fiber web comprising fibrillated fibers and non-fibrillated synthetic fibers, wherein the non-fibrillated synthetic fibers are staple fibers;
- and
- wherein the fiber web is substantially free of glass fibers.
A filter media, comprising:
- a fiber web comprising fibrillated fibers and non-fibrillated synthetic fibers, wherein the non-fibrillated synthetic fibers are staple fibers;
- and
- wherein the fiber web comprises greater than or equal to 50 wt % non-fibrillated synthetic fibers compared to the total weight of the fiber web.
Dependencies are inferred from the claim text.