24-02-2022 дата публикации
Номер: US20220056636A1
A nonwoven fabric has active antimicrobial and anti-viral agents coated onto it. Alternatively, an active antimicrobial/antiviral agent may be mixed into the barrier coating or fiber polymers themselves that make up the nonwoven material. A primary example is the treatment of an existing fabric having known permeability appropriate for an intended use. Intended uses for this nonwoven fabric include, but are not limited to, as a wearable garment, hair coverings, “booties,” patient cubicle curtains, temporary curtains, instrument wraps, surgical drapes, and blankets, each of which has active antimicrobial protection, thereby allowing the possibility of multiple uses of the fabric product. 1. An antimicrobial fabric comprising:a nonwoven fabric substrate formed of spunbonded polymer fibers;an antimicrobial material coated onto the nonwoven fabric substrate;wherein the coated nonwoven fabric is permeable to vapor and substantially impermeable to liquids.2. An antimicrobial fabric as described in claim 1 ,wherein the fabric is coated on both sides by an antimicrobial material.3. An antimicrobial fabric as described in claim 1 ,wherein the polymer fibers that form the nonwoven fabric substrate are polyolefin fibers.4. An antimicrobial fabric as described in claim 1 ,wherein the uncoated nonwoven fabric substrate has a base weight of 20-200 g/m2.5. An antimicrobial fabric as described in claim 1 ,wherein the uncoated nonwoven fabric substrate has a thickness of 0.0025-0.030 inches.6. An antimicrobial fabric as described in claim 1 ,wherein the antimicrobial material is comprised of one or more compounds selected from the group consisting of CaCO3, TiO2, and Ca(OH)2.7. An antimicrobial fabric as described in claim 1 ,wherein the coated fabric is stretched after extrusion.8. An antimicrobial fabric as described in claim 1 ,wherein the antimicrobial coating is co-extruded onto the nonwoven fabric substrate with the co-extruded coating comprising a plurality of layers and only ...
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