Method for manufacturing surface-modified fiber material, and surface-modified fiber material

Abstract

The present invention provides a method of manufacturing a highly functional surface-modified fibrous material with high added value, to which a novel functionality is imparted while making use of the characteristics inherent in the fibrous material, by modifying the surface of a natural fibrous material derived from an animal or a plant, or of a synthetic fiber; and a surface-modified fibrous material thereby obtained. The method of manufacturing a surface-modified fibrous material according to the invention includes attaching an inorganic material on the surface of a fibrous material by a sol-gel reaction, while allowing the fibrous material to move via an air stream. Preferably, an atmospheric-pressure low-temperature plasma is further applied to the surface of the fibrous material on the surface of which the inorganic material has been attached, while allowing the fibrous material to move via an air stream.

1 . A method of manufacturing a surface-modified fibrous material, the method comprising attaching an inorganic material on a surface of a fibrous material by a sol-gel reaction, while allowing the fibrous material to move via an air stream. 
     
     
         2 . The method of manufacturing a surface-modified fibrous material according to  claim 1 , wherein titania is attached on the surface of the fibrous material by a sol-gel reaction of a titanium compound, while allowing the fibrous material to move via an air stream. 
     
     
         3 . The method of manufacturing a surface-modified fibrous material according to  claim 2 , wherein an atmospheric-pressure low-temperature plasma is applied to the surface of the fibrous material on the surface of which titania has been attached, while allowing the fibrous material to move via an air stream. 
     
     
         4 . The method of manufacturing a surface-modified fibrous material according to  claim 2 , wherein titanium tetraisopropoxide is used as the titanium compound. 
     
     
         5 . The method of manufacturing a surface-modified fibrous material according to  claim 1 , wherein alumina is attached on the surface of the fibrous material by a sol-gel reaction of an aluminum compound, while allowing the fibrous material to move via an air stream. 
     
     
         6 . The method of manufacturing a surface-modified fibrous material according to  claim 5 , wherein an atmospheric-pressure low-temperature plasma is applied to the surface of the fibrous material on the surface of which alumina has been attached, while allowing the fibrous material to move via an air stream. 
     
     
         7 . The method of manufacturing a surface-modified fibrous material according to  claim 5 , wherein aluminum isopropoxide is used as the aluminum compound. 
     
     
         8 . The method of manufacturing a surface-modified fibrous material according to  claim 1 , wherein a ceramic is attached on the surface of the fibrous material by a sol-gel reaction of a ceramic compound, while allowing the fibrous material to move via an air stream. 
     
     
         9 . The method of manufacturing a surface-modified fibrous material according to  claim 8 , wherein an atmospheric-pressure low-temperature plasma is applied to the surface of the fibrous material on the surface of which the ceramic has been attached, while allowing the fibrous material to move via an air stream. 
     
     
         10 . The method of manufacturing a surface-modified fibrous material according to  claim 1 , wherein a natural fiber or a synthetic fiber is used as the fibrous material. 
     
     
         11 . The method of manufacturing a surface-modified fibrous material according to  claim 10 , wherein feathers, a powder or a microfiber made from cocoons, silk, wool, cotton, hemp, pulp, or the synthetic fiber are/is used as the fibrous material. 
     
     
         12 . The method of manufacturing a surface-modified fibrous material according to  claim 11 , wherein the feathers are used as the fibrous material. 
     
     
         13 . A surface-modified fibrous material manufactured by the method of manufacturing a surface-modified fibrous material according to  claim 1 . 
     
     
         14 . The method of manufacturing a surface-modified fibrous material according to  claim 3 , wherein titanium tetraisopropoxide is used as the titanium compound. 
     
     
         15 . The method of manufacturing a surface-modified fibrous material according to  claim 6 , wherein aluminum isopropoxide is used as the aluminum compound. 
     
     
         16 . The method of manufacturing a surface-modified fibrous material according to  claim 2 , wherein a natural fiber or a synthetic fiber is used as the fibrous material. 
     
     
         17 . The method of manufacturing a surface-modified fibrous material according to  claim 3 , wherein a natural fiber or a synthetic fiber is used as the fibrous material. 
     
     
         18 . The method of manufacturing a surface-modified fibrous material according to  claim 4 , wherein a natural fiber or a synthetic fiber is used as the fibrous material. 
     
     
         19 . The method of manufacturing a surface-modified fibrous material according to  claim 5 , wherein a natural fiber or a synthetic fiber is used as the fibrous material. 
     
     
         20 . The method of manufacturing a surface-modified fibrous material according to  claim 6 , wherein a natural fiber or a synthetic fiber is used as the fibrous material.