Preservative material and storage method for liquid

Abstract

A nanofiber structure having pores is used as a preservative material for a liquid material. A liquid material can be stored for a long period without causing deterioration and without the need of using any additive such as an anti-bacterial agent merely by contacting the liquid material with the preservative material.

1 . A storage method for liquids, comprising the step of contacting a preservative material for liquids with a liquid,
 said preservative material comprising a nanofiber material having a plurality of pores.   
     
     
         2 . The method of  claim 1 , wherein the liquid is held in the nanofiber material in an amount not greater than a void volume of the nanofiber material. 
     
     
         3 . The method of  claim 1  or  2 , wherein the shape of the nanofiber material is cotton wool-like, nonwoven fabric-like, felt-like or sponge-like. 
     
     
         4 . A storage container for liquids, comprising at least one opening and an interior in which a liquid is placed, wherein a nanofiber material having a plurality of pores is disposed at the interior in such a way as to contact the liquid. 
     
     
         5 . The storage container of  claim 4 , wherein the nanofiber material is disposed on an inside wall or a bottom surface thereof.