| 摘要 |
PROBLEM TO BE SOLVED: To enhance the tight adhesion between a base resin molding and a water-repellent resin material to thereby give a molded article excellent in water repellency by forming a rugged surface on a resin base and coating the rugged surface with a water-repellent resin material to a thickness above a specified value. SOLUTION: This resin molding is produced by a process comprising the steps of forming a rugged surface with a depth of the ruggedness of at least 5μm on the inside K11 of a fixed metal die K1, forming a water-repellent resin layer 1 to a thickness of at least 5μm on the rugged surface, closing the fixed die K1 with a movable metal die K2, filling a resin material 2 into a cavity C through a gate G by injection, and opening the dies after cooling to give a molded article comprising a resin molding 2 having an adherent water- repellent resin layer 1. It is desirable to form surface ruggedness of a depth of 5-100μm on the inside of the die K1. It is also desirable that the pitches of the surface ruggedness are 5-800μm.
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