METHOD FOR KEEPING HYDROPHILIC PROPERTY OF SURFACE OF HYDROPHOBIC POLYMER SUBSTRATE

摘要

PROBLEM TO BE SOLVED: To keep improving effect of hydrophilic property of a resin substrate surface obtained by applying ion beam treatment or plasma treatment over a long period. SOLUTION: The method for keeping a hydrophilic property of a hydrophobic polymer substrate surface comprises applying plasma treatment or ion beam treatment to the hydrophobic polymer substrate and then arranging the substrate in water or in vacuum. A package stores the hydrophobic polymer substrate subjected to plasma treatment or ion beam treatment. The substrate is stored in water or in vacuum in the package. COPYRIGHT: (C)2007,JPO&INPIT