Reclosable Film Packaging, Especially Flow-Wrap Packaging

Abstract

Film packaging, especially flow-wrap packaging ( 10 ) having a longitudinal sealed seam ( 19 ) and two transverse sealed seams ( 20, 21 ), at least the longitudinal sealed seam ( 19 ) being spaced apart from the associated longitudinal edges ( 15, 16 ) to form two longitudinal edge strips ( 17, 18 ) of different widths which are folded one over the other and onto the outside of the packaging ( 10 ). A restickable adhesive, especially a cold-seal adhesive ( 23 ), has been applied to the portion ( 22 ) of the wider longitudinal edge strip ( 18 ) that overhangs the narrower longitudinal edge strip ( 17 ), which adhesive is arranged to be stuck, when the packaging ( 10 ) is closed, to a “release” area ( 24 ) formed on the outside of the packaging.

1 - 10 . (canceled) 
   
   
       11 . A flow-wrap or other film packaging, said packaging having:
 a longitudinal sealed seam associated with longitudinal edges of said packaging, and   two transverse sealed seams, at least said longitudinal sealed seam being spaced apart from said associated longitudinal edges to form two longitudinal edge strips of different widths which are folded one over the other and onto the outside of the packaging, the wider longitudinal edge strip overhanging the narrower longitudinal edge strip, wherein:   a cold-seal or other restickable adhesive is located on the portion of the wider longitudinal edge strip that overhangs the narrower longitudinal edge strip, and   a “release” area is provided on the outside of the packaging, said adhesive being operative to stick, when the packaging is closed, to said “release” area.   
   
   
       12 . A packaging according to  claim 11 , wherein said adhesive is in the form of at least one cold-seal adhesive strip extending parallel to the longitudinal extent of said longitudinal edge strips. 
   
   
       13 . A packaging according to  claim 11 , wherein the two transverse edge regions, or the transverse edge regions of the overhanging portion of the wider longitudinal edge strip that face the transverse sealed seams, are free of adhesive. 
   
   
       14 . A packaging according to  claim 11 , wherein at least a portion of said longitudinal sealed seam is operative to be restickable. 
   
   
       15 . A packaging according to  claim 14 , wherein cold-seal adhesive strips lying one on top of the other and capable of multiple resticking are provided. 
   
   
       16 . A packaging according to  claim 11 , wherein said packaging consists of a square or rectangular film blank, to one side of which cold-seal or other adhesive has been applied in the form of a square or rectangular frame, the first two opposing adhesive strips lying substantially directly along the corresponding edges of the packaging film blank and the other two opposing adhesive strips being spaced apart, and by different amounts, from the associated edges of the blank. 
   
   
       17 . A packaging according to  claim 11 , wherein at least said “release” area has, at least in some regions, a release lacquer. 
   
   
       18 . A packaging according to  claim 11 , wherein film forming the film packaging has a release lacquer on its side remote from an adhesive coating. 
   
   
       19 . A packaging according to  claim 18 , wherein said release lacquer on said side remote from said adhesive coating is in the region of the rear side of said adhesive strips in a direction(s) selected from the group consisting of the transverse direction, the longitudinal direction, and the transverse and longitudinal directions. 
   
   
       20 . A packaging according to  claim 16 , wherein the film forming the film packaging has release properties with respect to the cold-seal adhesive, which properties are less marked than the release properties of the release lacquer. 
   
   
       21 . A packaging according to  claim 11 , wherein the cold-seal adhesive consists of an acrylic-based material and allows resticking a number of times selected from the group consisting of at least three times, and up to ten to fifteen times, without the closure strength being appreciably affected (that is to say still exhibiting at least about from 50% to 60% of the initial closure strength). 
   
   
       22 . A packaging according to  claim 11 , wherein the longitudinal and transverse sealed seams are each in the form of non-restickable heat-sealed seams.