A PACKAGING WITH LID SEALABLE TO CONTAINER AND A METHOD OF SEALING THE PACKAGING

摘要

A packaging is disclosed. The packaging comprises a container and a lid, which can be injection moulded. The lid can be sealed to the container and the lid comprises an elevated area for abutment on an upper edge of the container. At least a portion of the lid is made with a first sealing zone for joining with the container, and at least a portion of the container is made with a second sealing zone for joining with the lid. Active material is added to the material of the first or second sealing zone prior to moulding such that the material of the sealing zone to which the active material is added obtains an adhesion upon welding to the material of the sealing zone to which the active material is not added, the adhesion being poorer than it would have been if the active material had not been added.