Antimicrobial filter media
AssigneePurafil, Inc.
InventorsDonald Cho, William G. England, Anthony John Lawson, Gerrit Wijbenja, Mei Xin
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Abstract
A product and method of manufacturing and producing antimicrobial fibers using an antimicrobial additive material. The method comprising using various antimicrobial metals incorporated and embedded into an inorganic material as metal ions within the additive material that can be formulated into a masterbatch precursor material and processed to manufacture fine or synthetic fibers using standard manufacturing processes for use in applications from face masks and respirators to air filters for HVAC and higher efficiency HEPA applications.
Claims12
An air filtration filter media comprising:
- a nonwoven mixture of a plurality of at least three different fibers, including (1) functional antimicrobial fibers, (2) functional antimicrobial binder fibers and (3) non-functional fibers, wherein the functional antimicrobial fibers and the functional antimicrobial binder fibers each include an active inorganic-based ingredient comprising a zeolite additive which is dispersed within an outer layer of each of the functional antimicrobial fibers and the functional antimicrobial binder fibers for an antimicrobial effect, wherein the zeolite additive is between 1% to 5% w/w of each of the functional antimicrobial fibers and the functional antimicrobial binder fibers and the zeolite additive includes a mixture of copper and silver ions having an active metal ion content between 0.01% and 0.5% w/w of the zeolite additive.
Dependencies are inferred from the claim text.