Back Center Seal Bags For potato chips Packaging

Fin Lap Seal Pouch Inside Foil Layer With Tear Notch 

There are two types of back seals that can be formed with roll stock using Horizontal and Vertical Form Fill and Seal equipment. The back seal runs along the length of the bag and forms a "Lap Seal" or a "Fin Seal". When the inside edge of the film is placed over the outside edge and sealed together, a "Lap Seal" is formed. When both the inside edges are folded over and sealed together, a "Fin Seal" is formed. The type of back seal you choose depends on your product needs and film structures you select.