METHOD FOR TREATING THE EXTERNAL SURFACE OF AN EXTRUDED PRODUCT CAPABLE OF VISUALLY IMPROVING THE EXTERIOR OF THE EXTRUDED PRODUCT BY APPLYING COLOR AND PATTERNS TO THE EXTRUDED PRODUCT

摘要

PURPOSE: A method for treating the external surface of an extruded product is provided to facilitate the various external design of the extruded product by depositing patterns on the extruded product based on metallic materials.;CONSTITUTION: A method for treating the external surface of an extruded product includes the following: a metallic layer is formed on the external surface of an extruded product(12); a photoresist layer is formed on the metallic layer(13); a photo-mask is arranged on the photoresist layer; the photoresist layer is irradiated with light; and an etching process is implemented to eliminate the remaining part of the metallic layer, except for a part corresponding to the patterns of the photo-mask, and the entire photo-sensitive layer(15).;COPYRIGHT KIPO 2012