Outer package for packaged groups of rolls of products

Abstract

An outer package for groups of rolls of products, each group consisting of a plurality of rolls of products wrapped and closed in a piece of plastic film to form a pack; the outer package comprises a sheet of film for packaging one or more packs, which can be wrapped around said packs by forming a tubular wrapper with the sheet by gradually folding it in such a way as to obtain a tubular shape with a pair of longitudinal edges and two external edges, front and rear of the outer package, which can be closed on the packs with relative seals; the sheet of film consists of a material with a heat conducting value, and at least on the edges of its surface which can be placed opposite the packs, a zone with heat conducting properties lower than the afore-mentioned value and designed to allow, respectively, a seal for the pair of longitudinal edges overlapping one another and close to the packs and relative folding of the front and rear edges so that each forms two folded wings, which can be placed overlapping one another, and can be sealed together at end zones, to prevent the film used for the packs from being affected in the seal zones.

1 ) An outer package for groups of rolls of products, each group comprising a plurality of rolls of products grouped together to constitute a format, and wrapped and closed in a piece of plastic film to form a pack; the outer package comprising a sheet of film for packaging one or more packs, which can be wrapped around said packs of products by forming a tubular wrapper with the sheet by gradually folding it in such a way as to obtain a tubular shape with a pair of longitudinal edges and two external edges, front and rear of the outer package, which can be closed on the packs with relative seals, wherein the sheet of film comprises a material with a heat conducting value, the sheet including, at least on the edges of its surface which can be placed opposite the packs, a zone with heat conducting properties lower than said value and designed to allow, respectively, a seal for the pair of longitudinal edges overlapping one another and close to the packs and relative folding of the front and rear edges so that each forms two folded wings, which can be placed overlapping one another, and can be sealed together at end zones, preventing the film used for the packs from being affected in the seal zones.  
   
   
       2 ) The outer package according to  claim 1 , wherein the sheet of film comprises two layers, forming the external surface of the outer package and, respectively, the internal surface which can be placed opposite the packs; the internal layer having the heat conducting values designed to allow sealing of the edges and the end zones of the wings overlapping and close to the packs.  
   
   
       3 ) The outer package according to  claim 1 , wherein the edges of the sheet of film include zones comprising a substance with said heat conducting values lower than the heat conducting values of the rest of the sheet.  
   
   
       4 ) The outer package according to  claim 2 , wherein the internal surface of the sheet of film comprises a substance with said heat conducting values lower than the heat conducting values of the upper surface of the sheet of film.  
   
   
       5 ) The outer package according to  claim 2 , wherein the sheet of film comprises two separate films, joined together so that the first forms the internal surface with the heat conducting values lower than the heat conducting values of the other film forming the external surface of the sheet of film.  
   
   
       6 ) The outer package according to  claim 4 , wherein the sheet of film comprises two separate films, joined together so that the first forms the internal surface with the heat conducting values lower than the heat conducting values of the other film forming the external surface of the sheet of film.