Composition for prevention of influenza viral infection comprising tannic acid, air filter comprising the same and air cleaning device comprising the filter

Abstract

Disclosed are a composition for the prophylaxis of influenza viral infection comprising tannic acid, an air filter coated with the same, and an air cleaner comprising the air filter. Having high inhibitory activity against influenza virus, the composition comprising tannic acid can be applied to the prevention of influenza viral infection. Also, the filter coated with the composition can remove influenza virus from the air so that it can be employed in an air cleaner for the prophylaxis of influenza viral infection.

1 . A composition for preventing influenza viral infection, comprising tannic acid as an active ingredient. 
     
     
         2 . The composition according to  claim 1 , wherein the influenza virus is an influenza A virus, an influenza B virus or an influenza C virus. 
     
     
         3 . The composition according to  claim 2 , wherein the influenza virus is an H1N1 influenza virus. 
     
     
         4 . The composition according to  claim 3 , wherein the H1N1 influenza virus is A/PR/8(H1N1), A/WSN/33(H1N1), A/Bervig-Mission/1/18(rvH1N1) or A/Singapore/6/86(H1N1). 
     
     
         5 . The composition according to  claim 3 , wherein the H1N1 influenza virus is a new influenza A (H1N1) virus. 
     
     
         6 . The composition according to  claim 9 , wherein the new influenza A (H1N1) virus is A/California/O4/09 or A/California/7/2009. 
     
     
         7 . The composition according to  claim 1 , wherein the influenza virus causes fever, coughing, sore throat, bronchitis, pneumonia, avian flu, swine flu or goat flu. 
     
     
         8 . The composition according to  claim 1 , wherein the composition is used in preparing a quasi-drug. 
     
     
         9 . The composition according to  claim 1 , wherein the quasi-drug is selected from a group consisting of a filter coating agent, a hand-wash, a mouthwash, a disinfectant, a shower foam, a water tissue, a detergent soap, a humidifier filler, a mask and an aromatic. 
     
     
         10 . An air filter comprising the composition of  claim 1 . 
     
     
         11 . A method for manufacturing an air filter, comprising:
 preparing a composition of  claim 1 ;   coating a filter base with the composition; and   drying the composition-coated filter base,   wherein the coating is conducted by:   a process of immersing a roller in the composition for the prophylaxis of influenza viral infection and applying the roller to the filter base;   a process of immersing a filter base in combination with a roller in the composition for the prophylaxis of influenza viral infection; and/or   a process of spraying a filter base with the composition for the prophylaxis of influenza viral infection.   
     
     
         12 . The method according to  claim 11 , wherein the filter base is plastic or nonwoven fabric. 
     
     
         13 . The method according to  claim 11 , wherein the nonwoven fabric is paper-based nonwoven fabric or fiber-based nonwoven fabric. 
     
     
         14 . An air cleaner comprising the air filter of  claim 10 .