Protective masks with coating comprising different electrospun fibers interweaved with each other, formulations forming the same, and method of producing thereof

• Main Authors: Kwok, Sau Kuen Connie, Kwok, Hang Ching, Tong, Ho Wang
• Format: Patent
• Language: English
• Published: 12.02.2019
• Subjects: ACCESSORIES; ADHESIVES; AGRICULTURE; ANIMAL HUSBANDRY; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; CORRECTING FLUIDS; DYES; FILLING PASTES; FISHING; FORESTRY; HUMAN NECESSITIES; HUNTING; INKS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; OUTERWEAR; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS; POLISHES; PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTSTHEREOF; PROTECTIVE GARMENTS; TRAPPING; USE OF MATERIALS THEREFOR; WEARING APPAREL; WOODSTAINS

The present invention provides a protective mask with an ultrafine fibrous coating. The ultrafine fibrous coating includes partially gelled submicron fibers interweaved with nanofibers and a biocide encapsulated in, surface-attached onto, blended with, physically trapped, and/or chemically linked to the submicron fibers and nanofibers. In an example, a microfibrous substrate with the coating assembles with other microfibrous substrates to form a protective mask having N95 level of protection and bacteria-killing capability.