| 摘要 |
The present invention relates to a method and the accompanying system for inspecting objects (5) provided with a gas-barrier layer, said objects comprising at least one base layer (5a) from a first material, polyethylene or polypropylene, for example, and at least one gas-barrier layer from a different material, EVA or EVOH, for example. An image-recording module (6), such as an infrared camera, records an image of each object (5) and processes said images by means of a processing module (7) in such a way that faulty objects (5) are detected and eliminated. More specifically, the image recording module (6) creates the image of each object (5) within the invisible light region, and the processing module (7) then examines the recorded image, wherein the presence, the absence or the thickness of the gas-barrier layer is determined on the basis of the image. |
