A method and apparatus for non-destructive determination of a laminated state of an array of laminated plastic film layers for a plastic card body

摘要

The disclosure relates to a method of nondestructively determining a laminated plastic sheet layer assembly (4) arrangement for a plastic card body, the method comprising the steps of: optically determining a reference laminate layer arrangement with stacked plastic film layers in a laminated state and optically determining a to be tested Layer arrangement (4) with the stacked plastic film layers (2) in the laminated state, wherein in the optical determination by measuring light beams (7) for the layer arrangement in each case at least one optical measurement parameter is determined, which is suitable to determine a lamination quality of the respective layer arrangement; the layer arrangement (4) to be tested is determined to be a usable plastic card body if a difference between the optical measurement parameter determined for the layer arrangement selected as the reference and the optical measurement parameter determined for the layer arrangement (4) to be tested is within a predetermined tolerance limit for the optical measurement parameter. Further, a device for nondestructively determining a laminated state of an assembly (4) of laminated plastic film layers for a plastic card body is disclosed.