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US 7,744,681 B2Granted
Antimicrobial filtration article
AssigneeMVP Textiles & Apparel, Inc.
InventorKen Marcoon
Life of this patent
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Abstract
The present invention relates generally to a filtration article, such as a protective facemask, a method for using a filtration article, and a method for preparing a filtration article. In particular, the invention relates to a protective facemask that cost-effectively offers a broad spectrum of antimicrobial protection through the use of fibers treated with one or more oligodynamic metal and/or salt of an oligodynamic metal.
Claims13
A method of preparing a filtration article comprising:
- treating fibers with one or more oligodynamic metal and/or salt of an oligodynamic metal,
- incorporating said fibers into an air permeable filtration layer, said filtration layer being operatively associated with an air permeable support layer configured to fit over the nose and mouth of a wearer.
A method of preparing a filtration article comprising:
- treating fibers with silver or silver chloride;
- incorporating said fibers into an air permeable filtration layer comprising hydrophilic foam, wherein the concentration of said fibers in said filtration layer is between about 100 parts per million to about 2,000 parts per million and said fibers are about 0.5 mm in diameter;
- and
- operatively associating said filtration layer with an air permeable support layer and an attachment element, said support layer configured to fit over the nose and mouth of a wearer and said attachment element configured to secure said filtration article to the wearer.
1 more element
Dependencies are inferred from the claim text.