COLORING METHOD USING LASER MARKING

摘要

PURPOSE: A coloring method using laser marking is provided for coloring of characters or figures that are marked on the surface of a work piece so to be clearly distinguished from the other part. CONSTITUTION: The coloring method using laser marking comprises a coating step to apply a coating on the surface of the metal work piece in a predetermined thickness; a marking step in which predetermined characters or figures are formed by injecting a laser beam to the surface of the metal work piece; a decoloration step in which decolorant is applied on the characters or the figures.