To provide an anti-fogging mirror, lens, glass or other transparent base material capable of keeping high-degree surface hydrophilicity and high- degree anti fog capacity and a method for producing the same, a highly hydrophilic anti fouling base material prevented from surface contamination or having a self-cleanable or easily cleanable surface and a method for producing the same.
A composite material having a hydrophilic surface is produced by a process for preparing a base material and a process for coating the surface of the base material with a photoreactive layer containing a photocatalystic semiconductor material and showing water wettability of about 10° or less in terms of a contact angle with water at a time of light excitation. The coating process consists of a process for coating the surface of the base material with a membrane of amorphous titania and a process for heating the membrane to temp. equal to or lower than the softening point of the base material to convert amorphous titania to crystalline titania.
KOJIMA EIICHI
NORIMOTO KEIICHIRO
KITAMURA ATSUSHI
WATABE TOSHIYA
