Scored sheets are folded to form rectangles and sometimes glued or joined with tape to form a structure that is open at both ends. When used as sleeves for individual items such as glassware, adjacent packaging provides extra protection.
Pads are used to fill the space between the inner flaps of a regular slotted container, to completely cover the bottom or top of a box or to separate layers of product. Pads can also be used vertically to separate products and provide greater stacking strength.
Used primarily as dividers between glassware and other fragile articles, partitions can also optimize the stacking strength of the package.
Scored and folded inner packing pieces come in many shapes. Included in this group are buildup pads consisting of multiple pieces glued together.
Inner packing pieces are frequently used for cushioning. The suspension function holds the product away from the walls of the box to lessen the impact of drops or bumps. Completely filling the voids created by irregularly shaped products prevents product movement and damage, and in some cases can add stacking strength to the box.
Inner packing forms are usually die-cut to position and support irregular products from below or lock them into position from above. Alternatively, forms can be placed on two sides or at the ends of a product. Some inner packing forms are extensions of the box flaps.