How much do you know about stand-up pouches and vacuum-sealed bags?
Release date:
2019-12-10 14:37
Stand-up pouches, also known as upright pouches or stand-up bags, are packaging bags that can maintain an upright position. They are professionally printed with a wide variety of vibrant designs and text. Vacuum‑sealed bags are composite packaging made from multiple layers of plastic films produced via blown‑film extrusion, and they are used to package food, pharmaceuticals, consumer goods, and other everyday items.
A stand-up pouch is a type of plastic packaging that can stand upright, constructed from one to four layers of laminated materials, such as PET/PE, PET/CPP, OPP/PE, OPP/CPP, PA/PE, PET/AL/PE, and OPP/AL/PE. When the laminate includes aluminum foil (AL), it is referred to as an independent vacuum‑sealed bag; when it incorporates aluminized material, it is called an independent aluminized bag. The specific name varies depending on the constituent materials.
Stand-up pouch printing is not significantly different from that of plastic zip-lock bags. The only distinction is that stand-up pouches feature a gusseted bottom, allowing them to remain upright whether filled or empty, whereas plastic zip-lock bags cannot. Stand-up pouches are manufactured on specialized equipment, resulting in a distinct bag shape; their base is typically referred to as a “gusseted bottom,” which enables the pouch to stand on its own. When a PP embossed‑and‑debossed zip closure is added at the sealing edge, the product becomes a stand-up plastic zip-lock bag, also known as a stand-up zipper bag.
Stand-up pouches can stand upright on their own, which has made them a favorite among many suppliers. As a result, they are widely used across various sectors—including food, electronics, household goods, and pharmaceuticals—covering all aspects of daily life.
Vacuum‑sealed bags are a popular choice in flexible plastic packaging, and many products are packaged using them. So, what key considerations should you keep in mind when manufacturing vacuum‑sealed bags?
Vacuum‑packaging bags are typically produced by laminating several types of raw‑material films and then customizing them according to customer specifications. High‑temperature retort vacuum‑packaging bags generally consist of four or even more layers of laminated films, such as PET/AL/NY/RCPP. Antistatic vacuum‑packaging bags are usually made with three or four layers: three layers—PET/AL/PE—and four layers—PET/AL/NY/PE. Among these, antistatic vacuum‑packaging bags can be further categorized into double‑sided antistatic bags and single‑sided antistatic bags.
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