When the product-filled bag reaches its gross weight, filling stops, and the horizontal sealing bar shuts the bag's top while also forming the bottom of the bag above it. After being separated from the tube, the bag is now a sealed package and prepared to proceed with the product boxing and shipping procedures. The bag may be filled with air from a blower or from an inert gas supply, such as nitrogen, during the final sealing procedure Form Fill Seal Equipment Market. While filling the bag with inert gas helps drive out oxygen and slows the growth of microorganisms that would damage the product, it also helps reduce crushing of delicate products like potato chips. Hole punching for retail hanging racks, for example, will be done concurrently with or shortly after the "Top Seal" is manufactured, along with other product finishes.
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