Fitments

Abstract

A carton fitment ( 2 ) has a base flange ( 4 ) and a pour spout ( 6 ) closed by a screw on overcap ( 8 ). The base flange ( 4 ) has a barrier foil ( 30 ) coated on both sides with a plastic layer embedded in a sacrificial receiving wall ( 32 ) surrounding the periphery of the base flange ( 4 ).

1 . A fitment comprising a base flange ( 4 ) and a hollow spout ( 6 ), a removable part ( 10 ) within a base of the spout ( 6 ), and an overcap ( 8 ) for resealably closing the spout ( 6 ), and a barrier foil ( 30 ) coated on both sides with a plastics layer extending across the base flange ( 4 ), characterised in that the foil ( 30 ) is a coated aluminium foil that has an exposed aluminium cut edge prior to assembly in the fitment, and that the edge of the foil ( 30 ) is assembled to the flange ( 4 ) in such a manner that the aluminium cut edge is prevented in use from coming into contact with contents of a container to which the fitment is assembled with the base flange inside the container.  
   
   
       2 . A fitment as claimed in  claim 1 , characterised in that the aluminium cut edge of the foil ( 30 ) is embedded in the base flange ( 4 ).  
   
   
       3 . A fitment as claimed in  claim 1  or  2 , characterised in that the foil ( 30 ) is sealed to the base flange ( 4 ).  
   
   
       4 . A fitment comprising a base flange ( 4 ) having a first surface ( 54 ) and a hollow spout ( 6 ) projecting from a surface ( 56 ) opposite the first surface ( 54 ), a removable part ( 10 ) within a base of the spout ( 6 ), and an overcap ( 8 ) for resealably closing the spout, characterised in that a barrier foil ( 30 ) coated on both sides with a plastics layer is wrapped over the first surface of the flange ( 4 ) such that the foil extends onto the opposite surface ( 56 ) surrounding the spout.  
   
   
       5 . A fitment as claimed in any one of the preceding claims, further comprising tamper evident means.  
   
   
       6 . A paperboard carton with a fitment ( 2 ) as claimed in any one of the preceding claims inserted into a pre-cut hole ( 20 ) in a composite paperboard wall ( 22 ), characterised in that a seal between edges of the foil ( 30 ) and the wall ( 22 ) are of the same integrity as other seams in a remainder of the carton.  
   
   
       7 . A plastic coated or barrier coated metal container with a fitment ( 2 ) as claimed in any one of the preceding claims inserted into a pre-cut hole ( 20 ) in a wall of the container, characterised in that a seal between edges of the foil ( 30 ) and the wall are of the same integrity as other seams in a remainder of the container.  
   
   
       8 . A mono or multi-layer plastics container which is thermoformed, injection moulded, or blow moulded, with a fitment ( 2 ) as claimed in any one of the preceding claims inserted into a pre-cut hole ( 20 ) in a wall of the container, characterised in that a seal between edges of the foil ( 30 ) and the wall are of the same integrity as other seams in a remainder of the container.  
   
   
       9 . A method of manufacturing a fitment comprising the steps of placing an aluminium foil having a plastics layer on each surface within a receiving wall projecting from a first surface of a base flange of a fitment that has a hollow spout extending from an opposite surface, and welding the foil to the flange such that the wall is sealed over an aluminium cut edge of the foil.  
   
   
       10 . A method as claimed in  claim 9 , further comprising the step of folding the receiving wall over the edge of the foil prior to the securing step.  
   
   
       11 . A method as claimed in  claim 9  or  10 , wherein the securing step is carried out by induction heat sealing.  
   
   
       12 . A method of manufacturing a fitment comprising the steps of wrapping a foil having a plastics layer on each surface over a first surface of a base flange of a fitment that has a hollow spout extending from an opposite surface such that the foil extends onto the opposite surface surrounding the spout, and welding the foil to the flange.