| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a resin part for an office automation equipment having a superiority for recyclable capability, visibility of a laser-marked portion, and smoothness of appearance surfaces, and further, capable of forming an elaborately designed, deep, jet-black, clear mark, and furthermore, capable of remarkably widening a range of conditions of a laser beam irradiation for developing a black color when marking. SOLUTION: In a resin molded parts for an office automation equipment made of a transparent or semi-transparent thermoplastic resin and forming a marking portion by a laser beam irradiation, the marked portion irradiated by the laser beam is formed on a backside against the appearance surface as a predetermined profile of mirror image. Consequently, the predetermined profile of the mirror image can be visually recognized through the appearance surface.</p> |
