| 摘要 |
PROBLEM TO BE SOLVED: To obtain the subject product non-adhesive and water-repellent in its surface, having an excellent organic compound-degrading action, and thereby exhibiting an excellent anti-staining performance by exposing photocatalyst particles on the surface of a fluororesin sheet. SOLUTION: This anti-staining sheet is obtained by exposing photocatalyst particles (preferably anatase type titanium dioxide particles) on the surface of a fluororesin (preferably polytetrafluoroethylene) sheet, and is produced by cutting a cured product comprising the photocatalyst particles and the fluororesin in a desired thickness, preferably 0.1-0.3μm. The objective sheet is preferably obtained by homogeneously mixing the powder of the fluororesin with the photocatalyst particles by the use of a powder mixer, press-molding the mixture in a metal mold, curing the molded product at a temperature above the melting point of the powder of the fluororesin by a free sinter method, etc., and subsequently cutting the cured product into the sheet with a cutting lathe, etc. The diameter of the photocatalyst particles is preferably 0.007-0.5μm. The particle diameter of the fluororesin powder is generally 20-800μm. |
