公开(公告)号：US06749933B2

公开(公告)日：2004-06-15

申请号：US10168224

申请日：2002-06-19

申请人： Thomas Dries ,  Wolfgang Eiser

发明人： Thomas Dries ,  Wolfgang Eiser

IPC分类号： B32B516

CPC分类号： B32B27/32 ,  B29C65/1606 ,  B29C65/1616 ,  B29C65/1619 ,  B29C65/1635 ,  B29C65/1674 ,  B29C65/1683 ,  B29C65/1687 ,  B29C66/71 ,  B29C66/723 ,  B29C66/73774 ,  B29C66/73921 ,  B29C66/9161 ,  B29C66/919 ,  B29C66/929 ,  B29C66/949 ,  B29K2023/0641 ,  B29L2009/00 ,  B32B7/04 ,  Y10S428/91 ,  Y10T428/249992 ,  Y10T428/249993 ,  Y10T428/256 ,  Y10T428/257 ,  Y10T428/258 ,  Y10T428/26 ,  Y10T428/265 ,  Y10T428/31913 ,  B29K2077/00 ,  B29K2067/006 ,  B29K2067/00 ,  B29K2027/00 ,  B29K2025/06 ,  B29K2023/38 ,  B29K2023/12 ,  B29K2023/065 ,  B29K2023/0633 ,  B29K2023/0625 ,  B29K2023/0616 ,  B29K2023/00

摘要： The invention relates to a packaging material made of a multilayer oriented polyolefin film, which comprises a base layer and at least one first outer layer, whereby the first outer layer is placed in contact with itself or in contact with the opposing surface of the film or in contact with the surface of another film. This first outer layer contains an additive which absorbs light within the wavelength range of a laser such that when the film is locally irradiated by the laser, the area of irradiation experiences an increase in temperature that causes the polyolefin of the first outer layer to soften or melt in the irradiated area and to bond to another layer when cooled.

摘要翻译： 本发明涉及由多层定向聚烯烃膜制成的包装材料，其包括基层和至少一个第一外层，由此使第一外层与其自身接触或与膜的相对表面接触，或 与另一片的表面接触。 该第一外层包含吸收激光波长范围内的光的添加剂，使得当膜被激光局部照射时，照射面积经历温度升高，导致第一外层的聚烯烃软化或 在照射区域中熔化，并在冷却时与另一层结合。