| 摘要 |
<p>PROBLEM TO BE SOLVED: To propose a packaging material for laser marking which has a gas-barrier property and an aluminum vapor deposition layer, and can stably obtain high-contrast and clear printing without damaging the gas barrier property.SOLUTION: A packaging material for laser marking is characterized in that a transparent base material layer 2 and a sealant layer 10 are laminated in this order; a laser marking ink layer 3 which develops color by the irradiation with a laser beam and an aluminum paste-containing ink layer 5 are provided in this order on the back surface side on the transparent base material layer 2; and an aluminum vapor deposition layer 9 is provided on a surface opposite to the transparent base material layer 2 on the sealant layer 10.</p> |
