Lid for a beverage can or similar

Abstract

The invention relates to a lid for a beverage can or similar, having a lid surface and a closure unit which is to be opened and is re-closable, which is disposed in the region of the lid surface. The closure unit has the property of selectively uncovering or closing a drinking opening in the lid surface. On the outer side of the lid a foil which, on the outer side of the lid, covers the closure unit and, around the closure unit, is entirely connected to the lid surface so as to be tight in such a manner that, on account of the connection between the foil and the lid surface, ingress of moisture is prevented or at least substantially prevented, is disposed.

1 . A lid for a beverage can or similar, having a lid surface and a closure unit which is to be opened and is re-closable, which is disposed in the region of the lid surface, and which selectively uncovers or closes a drinking opening in the lid surface, wherein the lid, in the use state, has an inner side pointing to the inside of the can and an outer side pointing to the environment,
 characterized in that on the outer side of the lid a foil which, on the outer side of the lid, completely covers the closure unit and, around the closure unit, is entirely connected to the lid surface by means of an adhesive or sealing layer so as to be tight in such a manner that, on account of the connection between the foil and the lid surface, ingress of moisture is prevented or at least substantially prevented, is disposed, wherein the foil is multi-layered and includes at least one metallic layer and one plastic layer and the adhesive or sealing layer.   
     
     
         2 . The lid according to  claim 1 , wherein the foil and the connection of the foil to the lid surface are conceived such that the foil is irreversibly deformed during removal. 
     
     
         3 . The lid according to  claim 1 , wherein the foil is breathable. 
     
     
         4 . The lid according to  claim 1 , wherein the foil is pre-shaped in such a manner that said foil is adapted to a contour of component parts of the closure unit which reach outwards beyond the lid surface. 
     
     
         5 . The lid according to  claim 4 , wherein the foil is pre-fashioned in such a manner that said foil follows the contour of the closure unit in such a manner that the portions of the foil which are intended for connection to the lid surface already run at least approximately in the plane of the lid surface, when a foil of this type is applied to the lid. 
     
     
         6 . The lid according to  claim 1 , in which the lid surface is part of a shell which, besides the lid surface, includes a reinforcement bead which encircles the lid surface and which, in a surface inclination, transitions into the lid surface, characterized in that the foil is connected to the shell beyond a circumferential periphery of the lid surface. 
     
     
         7 . The lid according to  claim 1 , wherein the foil completely covers the closure unit on the outer side of the lid. 
     
     
         8 . Method for manufacturing a lid according to  claim 1 , wherein on the outer side of the lid a foil which, on the outer side of the lid, completely covers the closure unit and, around the closure unit, is entirely connected to the lid surface by means of an adhesive or sealing layer so as to be tight in such a manner that, on account of the connection between the foil and the lid surface, ingress of moisture is prevented or at least substantially prevented, is applied, wherein the foil is applied to the remainder of the lid by means of a flexible, for example an elastic, pressing stamp, wherein the pressing stamp is configured such that it adapts to the contour of the closure unit during application of the foil. 
     
     
         9 . The method according to  claim 8 , wherein the foil, after application, is thermally treated.