SURFACE TREATING METHOD FOR POLYACETAL RESIN MOLDED ARTICLE

摘要

A surface treating method for polyacetal resin molded articles is characterized in that the surface of a molded article made of a polyacetal resin composition comprising 99.5 SIMILAR 80 parts by weight of a polyacetal resin and 0.5 SIMILAR 20 parts by weight of one or more kinds of fine powdery ` metallic oxides having a mean particle diameter of 0.1 SIMILAR 20 mu is etched with an acidic solution containing one or more kinds of inorganic acids selected from the group consisting of sulfuric acid, hydrochloric acid, and phosphoric acid.