Coated Insert for Food Handling Totes

Abstract

A corrugated paperboard insert for plastic totes includes four side walls and a bottom made from a single sheet of corrugated paperboard. The bottom comprises four interlocking flaps connected along fold lines to respective sidewalls and configured to form an auto-locking bottom that avoids the need for taping. The corrugated paperboard comprises an uncoated linerboard forming an exterior surface of the insert, a coated linerboard forming an interior surface of the insert, a corrugated sheet fixed between the outer linerboard and inner linerboard. The coated linerboard includes a water-based, moisture resistant coating that is food contact rated and recyclable with uncoated paperboard. In some embodiments, point size and/or weight of the inner linerboard is greater than a point size and weight of the outer linerboard.

What is claimed is: 
     
         1 . A corrugated paperboard insert for a tote, the insert comprising:
 four side walls and a bottom made from a single sheet of corrugated paperboard, the bottom comprising four interlocking flaps connected along fold lines to respective sidewalls and configured to form an auto-locking bottom;   wherein the corrugated paperboard comprises:
 an uncoated linerboard forming an exterior surface of the insert; 
 a coated linerboard forming an interior surface of the insert, the coated linerboard including a water-based, moisture resistant coating that is food contact rated and recyclable with uncoated linerboard; 
 a corrugated sheet fixed between the outer linerboard and inner linerboard. 
   
     
     
         2 . The method of  claim 1 , wherein a point size of the inner linerboard is greater than a point size of the outer linerboard. 
     
     
         3 . The method of  claim 1 , wherein the weight of the inner linerboard is greater than a weight of the outer linerboard. 
     
     
         4 . The method of  claim 1 , wherein a point size and weight of the inner linerboard is greater than a point size and weight of the outer linerboard.