Flexible Carton Liner

Abstract

Disclosed herein is a flexible liner for a paneled fiberboard carton. The flexible liner is adhesively attached to the inner sides of the carton's panels creating demonstrably stronger carton walls and having the same top-load compression strength as standard, conventionally constructed liners. The flexible liners disclosed herein are unique in their die-cut construction resulting in liner panels, and optionally flaps, that are separated from adjacent liner panels by a plurality of slots and flexibly attached to adjacent panels by a plurality of bridges.

1 . A flexible liner for a paneled fiberboard carton, having inner and outer surfaces, said liner comprising:
 a plurality of planar panels sized to conform with designated panels of said carton and adhesively attachable to said inner surface of said carton panels and wherein at least one pair of adjacent liner panels is separated by a plurality of slots between said panels, and flexibly joined by a plurality of bridges.   
     
     
         2 . The flexible liner according to  claim 1  wherein each panel of said flexible liner is separated from an adjacent panel by a plurality of slots and flexibly joined to an adjacent panel by a plurality of bridges. 
     
     
         3 . The flexible liner according to  claim 1  further including a plurality of flaps attached to said panels. 
     
     
         4 . The flexible liner according to  claim 3  wherein said flaps are separated from said panels by a plurality of slots and flexibly attached to said panels by a plurality of bridges. 
     
     
         5 . The flexible liner according to  claim 1  wherein said bridges are obliquely angled between said liner panels. 
     
     
         6 . The flexible liner according to  claim 5  wherein said slots and bridges are arrayed so that the bridges positioned above a medially drawn transverse line are mirror images of obliquely angled bridges positioned below said medially drawn transverse line. 
     
     
         7 . The flexible liner according to  claim 1  wherein said slots are die-cut.