| abstract |
(57) [Summary] [Problem] To provide a membrane structure material which maintains cleanliness against dirt such as dust. SOLUTION: On the surface of a base material, both a portion exhibiting hydrophilicity where photocatalytic oxide particles are exposed so as to be in contact with the outside air and a portion exhibiting water repellency where a water-repellent fluororesin is exposed so as to be in contact with the outside air An antifouling film structural material, characterized in that a surface layer having a microscopically dispersed structure is formed on the surface layer. |