Pouch packaging with adhesive bonding tab

Abstract

The present invention relates to a bag pack ( 10 ) with an opening portion which is intended to be used for opening the pack ( 10 ) or at which the pack ( 10 ) has already been opened, wherein the pack ( 10 ) comprises at least one laminate bag side ( 12 ), which is formed from a laminate which comprises at least one outer layer, arranged on an outer bag side, an inner layer, arranged on an inner bag side, and an adhesive-bonding layer arranged between the outer layer and the inner layer, wherein the at least one laminate bag side ( 12 ) has formed in it a release portion ( 18 ) in which a predetermined release region ( 28 ) of the outer layer, together with the adhesive-bonding layer, can be released from the inner layer to expose an adhesive surface of the adhesive-bonding layer which is directed away from the outer layer, wherein the release portion ( 18 ) differs from the opening portion, and therefore the release portion ( 18 ) of the laminate bag side ( 12 ) is, and remains, closed, when used as intended, by way of at least the inner layer.

1 . Pouch packaging ( 10 ;  110 ) with an opening portion which is intended to be used for opening the packaging or at which the packaging ( 10 ;  110 ) has already been opened, the packaging ( 10 ;  110 ) comprising at least one laminate pouch side ( 12 ;  112 ) which is formed from a laminate which comprises at least three layers, namely an outer layer ( 34 ) located farther from the internal cavity of the pouch, an inner layer ( 30 ) located nearer the internal cavity of the pouch and an adhesive layer ( 32 ) located between the outer layer ( 34 ) and the inner layer ( 30 ), a release portion ( 18 ;  118 ;  218 ;  318 ;  418   a ,  418   b ;  518 ;  618   a ,  618   b ,  618   c ) being formed in the at least one laminate pouch side ( 12 ;  112 ), in which a predetermined release region ( 28 ) of the outer layer ( 34 ), together with the adhesive layer ( 32 ), can be released from the inner layer ( 30 ) to expose an adhesive surface ( 38 ) of the adhesive layer which is directed away from the outer layer ( 34 ),
 characterised in that the release portion ( 18 ;  118 ;  218 ;  318 ;  418   a ,  418   b ;  518 ;  618   a ,  618   b ,  618   c ) differs from the opening portion with the result that the release portion ( 18 ;  118 ;  218 ;  318 ;  418   a ,  418   b ;  518 ;  618   a ,  618   b ,  618   c ) of the laminate pouch side ( 12 ;  112 ) is sealed and remains sealed by at least the inner layer ( 30 ) when used as intended.   
     
     
         2 . Pouch packaging ( 10 ;  110 ) according to  claim 1 ,
 characterised in that the adhesive layer ( 32 ) adheres more strongly to a laminate layer ( 34 ) directly adjacent to the adhesive layer in a direction towards the outer side of the pouch than to a laminate layer ( 30 ) directly adjacent to the adhesive layer in a direction towards the inner side of the pouch.   
     
     
         3 . Pouch packaging ( 10 ;  110 ) according to  claim 1 ,
 characterised in that the adhesive layer ( 32 ) is made from a material which allows the adhesive layer ( 32 ) to be repeatedly bonded to and released from a surface on the outer side of the pouch.   
     
     
         4 . Pouch packaging ( 10 ;  110 ) according to  claim 1 ,
 characterised in that all sides of the pouch ( 12 ,  14 ;  112 ,  114 ) are formed as laminate pouch sides, preferably with an identical layer structure.   
     
     
         5 . Pouch packaging ( 10 ;  110 ) according to  claim 1 ,
 characterised in that an outer edge of the release portion ( 18 ;  118 ;  218 ;  318 ;  418   a ,  418   b ;  518 ;  618   a ,  618   b ,  618   c ) is at least in portions defined by a material weakness ( 20 ;  120 ) extending substantially linearly in at least the outer layer ( 34 ) of the laminate.   
     
     
         6 . Pouch packaging ( 10 ;  110 ) according to  claim 5 ,
 characterised in that the material weakness ( 20 ;  120 ) is formed by removing material and/or by material displacement and/or by at least partial material separation.   
     
     
         7 . Pouch packaging ( 10 ;  110 ) according to  claim 5 , characterised in that the inner laminate layer ( 30 ), at least in the region of the release portion ( 18 ;  118 ;  218 ;  318 ,  418   a ;  418   b ;  518 ,  618   a ,  618   b ,  618   c ), is free from any material weakness ( 20 ;  120 ). 
     
     
         8 . Pouch packaging ( 10 ;  110 ) according to  claim 5 ,
 characterised in that the material is continuously weakened from at least the outer laminate layer ( 34 ) along the material weakness ( 20 ;  120 ) which extends substantially linearly.   
     
     
         9 . Pouch packaging ( 10 ;  110 ) according to  claim 5 ,
 characterised in that the material of at least the outer layer ( 34 ) of the laminate is only weakened locally, e.g. in the form of laser perforation or punching, along the material weakness ( 20 ;  120 ) which extends substantially linearly.   
     
     
         10 . Pouch packaging ( 10 ;  110 ) according to  claim 1 ,
 characterised in that the release portion ( 18 ;  118 ;  218 ;  318 ;  418   a ,  418   b ;  518 ;  618   a ,  618   b ,  618   c ) is substantially elongated in shape, one of its two longitudinal ends facing the opening portion and being located a predetermined distance from this opening portion in the longitudinal direction of the release portion ( 18 ;  118 ;  218 ;  318 ;  418   a ,  418   b ;  518 ;  618   a ,  618   b ,  618   c ).   
     
     
         11 . Pouch packaging ( 10 ;  110 ) according to  claim 10 ,
 characterised in that the longitudinal end of the release portion ( 18 ;  118 ;  218 ;  318 ;  418   a ,  418   b ;  518 ;  618   a ,  618   b ,  618   c ) facing the opening portion has an edge region which is designed in the form of a grip tab ( 22 ;  122 ;  222   a ,  222   b ;  322 ;  422   a ,  422   b ;  522 ;  622   a ,  622   b ,  622   c ).   
     
     
         12 . Pouch packaging ( 10 ;  110 ) according to  claim 11 ,
 characterised in that the adhesive layer ( 32 ) of the release region ( 28 ) displays a reduced adhesive force, down to zero if applicable, in the region of the grip tab ( 22 ;  122 ;  222   a ,  222   b ;  322 ;  422   a ,  422   b ;  522 ;  622   a ,  622   b ,  622   c ).   
     
     
         13 . Pouch packaging ( 10 ;  10 ) according to  claim 10 ,
 characterised in that the release region ( 28 ) is permanently connected to a laminate region located outside the release portion ( 18 ;  218 ;  318 ,  418   a ;  418   b ;  518 ,  618   a ;  5 ;  618   b ,  618   c ) at the longitudinal end of the release portion ( 18 ;  218 ;  318 ;  418   a ,  418   b ;  518 ;  618   a ,  618   b ,  618   c ) distal to the opening portion.   
     
     
         14 . Pouch packaging ( 110 ) according to  claim 10 ,
 characterised in that the release region can be detached fully from the laminate of the at least one laminate pouch side ( 112 ).