Sealing disk having a tab

Abstract

The invention relates to a sealing disk ( 20 ) for a closure of a container ( 10 ) having an opening ( 11 ) delimited by a circumferential edge ( 12 ), wherein the sealing disk comprises several layers having an edge. A group ( 30 ) of lower layers ( 31, 32, 33, 34, 35 ) closes the opening ( 11 ) of the container ( 10 ) before the first opening thereof. Said group ( 30 ) can be sealed onto the circumferential edge ( 12 ) of the opening ( 11 ) by means of a sealing layer ( 31 ). The group ( 30 ) is detachably connected to a group ( 40 ) of upper layers ( 41, 42, 43, 44 ). The opening ( 11 ) of the container ( 10 ) can be closed again temporarily using the second group ( 40 ). The sealing disk ( 20 ) comprises at least one grip tab ( 50 ), which is formed only by one or more of the layers from the first group ( 30 ) of the lower layers.

1 . A sealing disk for a container closure for use with a container having an opening delimited by a circumferential edge,
 in which the sealing disk comprises several layers with an edge, of which a group of lower layers tightly closes the opening of the container prior to the initial opening of the container,   in which the group of lower layers can be sealed by means of a sealing layer onto the circumferential edge of the opening,   in which the group of lower layers can be joined in a detachable manner to a group of upper layers of the sealing disk,   in which the opening of the container can then be closed again temporarily by the group of upper layers,   in which the sealing disk has at least one gripping tab,   in which the gripping tab is formed only by one or several of the layers from the group of lower layers, and   in which the layer forming the gripping tab projects beyond the edge of the other layers of the two groups flatly by the surface of the gripping tab,   hereby characterized   in that the layer of the group of lower layers adjacent to the sealing layer forms the gripping tab, and   that the surface part of this layer that projects beyond the edge of the other layers is folded around the outer edge of all other layers of the group of lower layers with the exception of the sealing layer and is applied folded flat on top of the uppermost layer of the group of lower layers and is covered by the group of upper layers, so that the gripping tab can be gripped after detaching the group of upper layers in the initial opening of the container.   
     
     
         2 . A sealing disk for a container closure for use with a container having an opening delimited by a circumferential edge,
 in which the sealing disk comprises several layers with an edge, of which a group of lower layers tightly closes the opening of the container prior to the initial opening of the container,   in which the group of lower layers can be sealed by means of a sealing layer onto the circumferential edge of the opening,   in which the group of lower layers can be joined in a detachable manner to a group of upper layers of the sealing disk,   in which the opening of the container can then be closed again temporarily by the group of upper layers,   in which the sealing disk has at least one gripping tab,   in which the gripping tab is formed only by one or several of the layers from the group of lower layers, and   in which the layers forming the gripping tab project beyond the edge of the other layers flatly by the surface of the gripping tab,   hereby characterized   in that several layers of the group of lower layers lying next to the sealing layer form the gripping tab, and   that the surface part of these layers that projects beyond the edge of the other layers is folded around the outer edge of all other layers of the group of lower layers with the exception of the sealing layer and is folded flat on top of the uppermost layer of the group of lower layers and is covered by the group of upper layers, so that the gripping tab can be gripped after detaching the group of upper layers for the initial opening of the container.   
     
     
         3 . The sealing disk according to  claim 1 ,
 further characterized   in that the layer adjacent to the sealing layer is a layer made of a plastic film, and   in that the layer following this layer is a metallic layer as an induction layer.   
     
     
         4 . The sealing disk according to  claim 3 ,
 further characterized   in that the layer adjacent to the sealing layer comprises polyethylene terephthalate (PET).   
     
     
         5 . The sealing disk according to  claim 3 ,
 further characterized   in that the layer adjacent to the sealing layer is completely or partially colored.   
     
     
         6 . The sealing disk according to  claim 1   further characterized   in that the surface parts that project beyond the other layers and that are folded and applied flat onto the uppermost layer of the group of lower layers, are covered on top by a protective coating or a protective film.   
     
     
         7 . The sealing disk according to  claim 2  further characterized in that the layer adjacent to the sealing layer is a layer made of a plastic film, and in that the layer following this layer is a metallic layer as an induction layer. 
     
     
         8 . The sealing disk according to  claim 7 , further characterized in that the layer adjacent to the sealing layer comprises polyethylene terephthalate (PET). 
     
     
         9 . The sealing disk according to  claim 8 , further characterized in that the layer adjacent to the sealing layer is completely or partially colored. 
     
     
         10 . The sealing disk according to  claim 2 , further characterized in that the surface parts that project beyond the other layers and that are folded and applied flat onto the uppermost layer of the group of lower layers, are covered on top by a protective coating or a protective film.