The outer packaging bags of food also use a variety of materials, most of which use plastic packaging bags to package products, because plastic packaging bags are light, have good printing effects, and are easy to store and transport.

The zipper of the self-supporting zipper bag can be reused to protect the food from moisture deterioration. has a very large advantage.

For example: dried fruits, nuts, dry seasonings, powdered food, and food that cannot be eaten at one time, most of them use plastic bags with zippers or self-adhesive plastic bags with glue. Zippered food packaging bags and self-adhesive plastic packaging bags are such plastic packaging bags. After the bag is opened, it can be sealed twice. Although it cannot achieve the effect of the first sealing, it can be used as a daily moisture-proof and dust-proof in the short term. It’s still possible.

A stand-up bag refers to a flexible packaging bag with a horizontal support structure at the bottom, which does not rely on any support and can stand on its own regardless of whether the bag is opened or not. The stand-up pouch is a relatively novel form of packaging, which has advantages in improving product quality, strengthening the visual effect of shelves, portable, easy to use, fresh-keeping and sealability.

Combining the two, the self-supporting zipper bag appeared. Adopt the above design features, and select the material, usually laminated with PET/foil/PET/PE structure, and can also have 2 layers, 3 layers and other specifications of materials, depending on the different products of the package, can be added as needed The oxygen barrier protection layer reduces the oxygen permeability to achieve a better effect of prolonging the shelf life.