blister foil thickness_blister foil thickness

At its core, vacuum shrink bag packaging involves encasing products in a plastic bag, from which air is removed before sealing. The bags are typically made from multi-layered materials that offer excellent barrier properties against moisture, oxygen, light, and other environmental factors that can spoil food. After vacuum sealing, the bag is subjected to heat, causing it to shrink tightly around the product, providing a snug fit.