Quad Seal Bag also called Block Bottom Pouch, Flat Bottom Pouch, or Box Pouch. The expandable side gussets provide enough room for more volume and capacity of the content making, most buyers unable to resist Quad Seal Pouches.
Quad Seal Bag have double side gussets and can stand straight up easily, it has gussets that are join to the two panels by the use of four seals.
This means that all the four sides of the bag are seal including the top part that is normally seal after the filling process; all these properties enables the pouches to hold their shapes while on the shelves even when fully filled with product.
Quad Seal Bags do not have a back sealing, hence both the face and back panels are undisturbed for better flexibility on additional placements and fittings.