The use of adhesive tape for sealing is currently the most widely used method for sealing boxes. Fold the sealed folding sheet or the cardboard box that has already been sealed with adhesive, use a reel type pressure-sensitive tape to stick it across the folding seam of the sealing folding sheet, and apply a certain amount of pressure to seal the box tightly. The bonding length between each end of the cardboard box and the adhesive tape should generally be greater than 50 millimeters.

The cardboard box bonding machine is a machine that applies adhesive to the outer surface of the inner folding sheet or the inner surface of the outer folding sheet after folding the inner folding sheet. When folding the outer folding sheet, a mechanical device is used to apply a certain amount of pressure to the bonding area to stick the cardboard box sheets together. After the adhesive dries, the cardboard box is sealed.