A LID, PARTICULARLY FOR FOODSTUFF CONTAINERS, AND THE PROCESS USED FOR ITS MANUFACTURE

摘要

A lid for foodstuff containers includes a shell (3) shaped so that it can be fitted over an opening in a container, and a PVC-free seal (8), bearing an inscription (11), attached to the bottom (6) of the shell (3) and able to seal the lid (1) to the container; the seal (8) is applied to the bottom (6) of the lid (1) by applying adhesive paint (9) between the bottom (6) and seal (8); this paint (9) which can be used to control the adherence of the seal (8) to the bottom (6), consists of a mixture of synthetic resins and hydrocarbons with added metallic pigment; a film (10) bearing the inscription (11) is applied over the paint (9), said inscription made using an ink which has a given chemical-physical affinity with the materials used for the seal (8); it is, therefore, easy to detach the seal (8) from the bottom (6) of the lid (1) upon which the inscription (11) is clearly reproduced.