Patent ID: 6716513
Filing Date: 2004-04-06
Classification: C03C,C04B,C09D,Y10T

Abstract:
A hydrophilic material comprising:a substrate; and a hydrophilic layer provided as the outermost layer on the substrate; the hydrophilic layer comprising hydrophilic metal oxide particles and a hydrophilic inorganic amorphous material; the hydrophilic layer having profile peaks on its surface; the hydrophilic layer having roughness properties such that, when a segment is set in only a portion not containing the profile peaks, the ten-point mean roughness (Rz) and the mean distance between concaves and convexes (Sm) obtained from a profile curve in the segment are 10 nm&lE;Rz&lE;40 nm and 10 nm&lE;Sm&lE;300 nm, respectively, while, when a segment is set so as to pass through the profile peaks, the ten-point mean roughness (Rz) and the mean distance between concaves and convexes (Sm) obtained from a profile curve in the segment are 40 nm&lE;Rz&lE;200 nm and 300 nm&lE;Sm&lE;1500 nm, respectively.