Structure forming a liquid film on the surface thereof and coating solution for forming the liquid film

Abstract

A structure forming, on the surface thereof, a liquid film for improving sliding property to a fluid substance, the liquid film containing solid particles of particle size of not more than 300 μm that are dispersed therein. The structure exhibits further improved sliding property to the fluid substances due to the liquid film formed on the surface thereof, and can be favorably used as packing materials such as containers and lids.

1 . A structure forming, on a surface thereof, a liquid film for improving sliding property to a fluid substance, the liquid film containing solid particles of particle size of not more than 300 μm that are dispersed therein. 
     
     
         2 . The structure according to  claim 1 , wherein a liquid forming the liquid film acquires angle of contact (20° C.) of not more than 45° relative to the surface that supports the liquid film and has viscosity (25° C.) of not more than 100 mPa·s. 
     
     
         3 . The structure according to  claim 1 , wherein the solid particles are organic particles. 
     
     
         4 . The structure according to  claim 1 , wherein the solid particles are dispersed in an amount of 0.01 to 10 parts by mass per 100 parts by mass of a liquid that forms the liquid film. 
     
     
         5 . The structure according to  claim 1 , wherein the liquid film is formed in an amount of 1.0 to 6.2 mg/cm 2  on the surface of the structure. 
     
     
         6 . The structure according to  claim 1 , wherein the surface of the structure is formed of a synthetic resin. 
     
     
         7 . The structure according to  claim 1 , wherein the surface of the structure is formed of glass. 
     
     
         8 . The structure according to  claim 1 , wherein the structure is used as a packing material. 
     
     
         9 . The structure according to  claim 8 , wherein the packing material is used for containing a liquid content that has viscosity (25° C.) of not less than 1260 mPa·s. 
     
     
         10 . The structure according to  claim 8 , wherein the packing material is a container. 
     
     
         11 . A coating solution for forming a liquid film on a surface of a structure, the coating solution containing, as a dispersion medium, a liquid for forming the liquid film and, further, containing solid particles of particle size of 5 μm to 300 μm in an amount of 0.01 to 20 parts by mass per 100 parts by mass of the liquid that is the dispersion medium.