| 摘要 |
Multi-layer packaging material, especially laminate, preferably for food, hygiene products and electronic products, having at least one metal barrier - especially aluminium -layer (10) and at least one paper layer (11, 12), and also roll material. The paper layer (11, 12) is laser-marked with predetermined intensity at least in some areas through its entire cross-section, and optionally the surface of the metal layer (10) is laser-marked. |
