A CLOSING ELEMENT FOR CONTAINERS AND A PROCESS FOR MAKING SAID CLOSING ELEMENT

The present invention relates to a closing element (1 ) for containers for liquids， in particular bottles. The closing element (1 ) comprises at least a cork sheet (2) having two opposite main faces (2a， 2b) and at least a layer of insulating material (7)， impermeable to liquids and to air and/or gases， coupled to the cork sheet (2). The layer of insulating material (7)， at least partly covers at least one of said two main faces (2a， 2b). The cork sheet (2) and the layer of insulating material (7) are rolled so as to define the closing element (1 ) by an alternated winding of the cork sheet (2) and the layer of insulating material (7)， and the layer of insulating material (7) and the alternated winding are configured and predisposed to make the closing element (1 ) impermeable or to liquids and air and/or gases. The mechanical winding is guaranteed by a partial and spotted gluing of the surfaces， usually only at the external end thereof. The present invention relates to a closing element (1 ) for containers for liquids， in particular bottles. The closing element (1 ) comprises at least a cork sheet (2) having two opposite main faces (2a， 2b) and at least a layer of insulating material (7)， impermeable to liquids and to air and/or gases， coupled to the cork sheet (2). The layer of insulating material (7)， at least partly covers at least one of said two main faces (2a， 2b). The cork sheet (2) and the layer of insulating material (7) are rolled so as to define the closing element (1 ) by an alternated winding of the cork sheet (2) and the layer of insulating material (7)， and the layer of insulating material (7) and the alternated winding are configured and predisposed to make the closing element (1 ) impermeable or to liquids and air and/or gases. The mechanical winding is guaranteed by a partial and spotted gluing of the surfaces， usually only at the external end thereof.