| 摘要 |
1. Process for laminating layers (5, 4, 5, resp. 29, 27', 28, 27'', 30) of partially thermoplastic films to a bond (26) by action of heath and pressure on the layers which are to be laminated, of which a core layer (4, resp. 27', 27'') has at least one window area (3 ; 25', 25''), characterized in that the laminating temperature acting on the layers is lowered in the window area by 10 to 70 degrees C, compared to the other areas of the layers. |
