A method and a device for detecting defects In a packaging material and packages

摘要

With reference to Fig. 1, a device 10 for detecting defects in a packaging laminate 20 is shown. The packaging laminate 20 has a core layer 22 of paper board which on one side is coated with a thermoplastic polymer layer 23. The inner side of the core layer 22, i.e. the side being arranged to face the product to be enclosed by said packaging laminate 20, is covered by a first polymer layer 24, a barrier film 25 of a conductive material such as aluminum, and further layers 26,27 of polymer forming the inside of the packaging laminate 20.