Medical mask with a functional material

Abstract

The purpose of the invention is to provide a surgical mask with sufficient antibacterial properties, by uniformly manifesting on the surface of nanofibers a functional material with antibacterial and antiviral properties. The problem is solved by a mask with a functional material which comprises a nanofiber containing at least one base polymer selected from a group consisting of PVA, polylactic acid, fibroin, chitosan, chitin, nylon 6, nylon 6,6, nylon 9T, nylon 610, polyamide, polystyrene, polyacrylonitrile, polyethylene terephthalate, polyvinyl chloride, polyurethane, polyester, zein, collagen and methoxymethylated nylon, and at least one functional substance selected from a group consisting of catechin polyphenols, persimmon tannin polyphenols, grape seed polyphenols, soybean polyphenols, lemon peel polyphenols, coffee polyphenols, phenylcarboxylic acid, ellagic acid and coumalin, and having a diameter of 1 nm to 2000 nm.

1 . A mask with a functional material which comprises a nanofiber containing at least one base polymer selected from a group consisting of PVA, polylactic acid, fibroin, chitosan, chitin, nylon 6, nylon 6,6, nylon 9T, nylon 610, polyamide, polystyrene, polyacrylonitrile, polyethylene terephthalate, polyvinyl chloride, polyurethane, polyester, zein, collagen and methoxymethylated nylon, and at least one functional substance selected from a group consisting of catechin polyphenols, persimmon tannin polyphenols, grape seed polyphenols, soybean polyphenols, lemon peel polyphenols, coffee polyphenols, phenylcarboxylic acid, ellagic acid and coumalin, and having a diameter of 1 nm to 2000 nm. 
     
     
         2 . A mask with a functional material which comprises not only the nanofiber described in  claim 1  but also a reinforcing nanofiber containing at least one reinforcing polymer selected from a group consisting of PVA, polylactic acid, fibroin, chitosan, chitin, nylon 6, nylon 6,6, nylon 9T, nylon 610, polyamide, polystyrene, polyacrylonitrile, polyethylene terephthalate, polyvinyl chloride, polyester, zein, collagen and polyurethane and having a diameter of 1 nm to 2000 nm. 
     
     
         3 . The mask with the functional material according to  claim 1 , wherein the functional substance is uniformly dispersed or dissolved in the base polymer. 
     
     
         4 . The mask with the functional material according to  claim 1  which consists of only the base polymer and the functional substance. 
     
     
         5 . The mask with the functional material according to  claim 1 , wherein a weight per unit area of the nanofiber is 0.005 g/m 2  to 10 g/m 2 . 
     
     
         6 . The mask with the functional material according to  claim 1 , wherein an air-permeability is 1 cc/cm 2 ·sec to 1000 cc/cm 2 ·sec. 
     
     
         7 . The mask with the functional material according to  claim 1 , wherein a resin constituting the resin composition mask is negatively or positively electrostatically-charged and attracts surrounding substances positively or negatively electrostatically-charged. 
     
     
         8 . The mask with the functional material according to  claim 1  which is a surgical mask, wherein the resin composition mask is composed of a non-woven fabric and is for surgical applications. 
     
     
         9 . The surgical mask according to  claim 8 , wherein a trapping performance for fine particles of 0.1 μm or larger is 99% or more. 
     
     
         10 . The surgical mask according to  claim 8 , wherein a trapping performance for fine particles of 3 μm or larger is 99% or more. 
     
     
         11 . A manufacturing method for the mask according to  claim 1 , wherein a polymer-containing solution is prepared by dissolving at least one base polymer selected from a group consisting of PVA, polylactic acid, fibroin, chitosan, chitin, nylon 6, nylon 6,6, nylon 9T, nylon 610, polyamide, polystyrene, polyacrylonitrile, polyethylene terephthalate, polyvinylidene chloride, polyester, zein, collagen, polyvinyl chloride, methoxymethylated nylon and polyurethane in at least one solvent selected from a solvent group consisting of water, acetone, methanol, ethanol, propanol, toluene, benzene, cyclohexane, cyclohexanone, tetrahydrofuran, dimethylsulfoxide, 1,4-dioxane, carbon tetrachloride, methylene chloride, pyridine, N-methyl-2-pyrrolidone, ethylene carbonate, diethyl carbonate, propylene carbonate, acetonitrile, lactic acid, acetic acid, dimethylacetamide, dimethylformamide, dichloromethane, trichloromethane, hexafluoroisopropanol, formic acid, chloroform, formaldehyde and acetaldehyde; a functional substance-containing solution is prepared by dissolving at least one functional substance selected from a group consisting of catechin polyphenols, persimmon tannin polyphenols, grape seed polyphenols, soybean polyphenols, lemon peel polyphenols, coffee polyphenols, phenylcarboxylic acid, ellagic acid and coumalin in at least one solvent selected from the solvent group; a mixed solution is prepared by mixing the polymer-containing solution and the functional substance-containing solution; and the mask is manufactured from a fiber made by spinning this mixed solution by an electrospinning method. 
     
     
         12 . The manufacturing method for the mask according to  claim 11 , wherein any of the solvents for preparing the polymer-containing solution and the functional substance-containing solution is any one selected from a group consisting of formic acid, hexafluoroisopropanol, water, dimethylformamide, ethanol and dichloromethane. 
     
     
         13 . The manufacturing method for the mask according to  claim 11 , wherein the functional substance-containing solution contains sodium chloride. 
     
     
         14 . The manufacturing method for the mask according to  claim 11 , wherein the mixed solution is uniform in properties and transparent.