FOLDERS: International Fibreboard Case Code: 04 Series

For folders, one or more pieces of combined board provide an unbroken bottom surface, and are scored to fold around a product. The International Fibreboard Case Code describes them as Folder-Type Boxes. The carrier classifications use the term Folders.

0401 One Piece Folder (OPF)
One piece of board is cut so that it provides a flat bottom, with flaps forming the sides and ends, and extensions of the side flaps meeting to form the top.
 
     
0403 One Piece Folder with Air Cell/End Buffers, Protect All or Bookwrap  

0406 Wrap Around Blank
A wrap-around blank is formed into a box by folding it tightly around a rigid product. The positioning of the product, folding and sealing are performed by automatic equipment.

The finished box is essentially an RSC, turned on its side so that the bottom and top are unbroken. The joint, however, is not formed until the final closure.

     
0410 Five Panel Folder (FPF) or Harness Style Five Panel Folder
A single cut and scored piece features a fifth panel used as the closing flap, completely covering a side panel. The closed box has several layers of com-bined board on each end, providing stacking strength and protection for long articles of small diameter which might be damaged, or damage the box, if pushed through the ends.
  0411 Center Seam FPF
     

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Above Content Derived from Fibre Box Handbook. Courtesy of Fibre Box Association.