Patent ID: 8696854
Filing Date: 2014-04-15
Classification: B29C,B29K,B29L,B65D,Y10T

Abstract:
1. A method for producing self-supporting container parts, such as dishes or covers, for containers for foodstuffs to be treated in a microwave oven, said containers each comprising at least one compartment for receiving the foodstuffs, along at least part of the circumferential surface of which compartment a microwave-radiation influencing material layer is provided in the wall of at least one associated container part, comprising the steps of providing a flat, wrinkle-free multilayer foil comprising bonding one side of the multilayer foil to a remaining portion of the container part in question by in mould labeling of said multilayer foil with said microwave radiation-influencing material layer wrinkle free, in such a manner that the material layer of the multilayer foil that does not influence microwave radiation is present on a free surface of the container part, by positioning the multilayer foil inside a mould during the forming of a container part in said mould for the purpose of bonding the microwave-influencing material layer to the remaining portion of the container part during said forming of the container part, said microwave radiation-influencing material layer being wrinkle free when being positioned in said mould.