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. Stand-up pouches have advantages in improving product quality, enhancing shelf visual effects, portability, ease of use, freshness preservation, and sealability.
The stand-up pouch is laminated with PET/foil/PET/PE structure, and can also have 2 layers, 3 layers and other specifications. According to the different products of the packaging, an oxygen barrier protective layer can be added as needed to reduce the oxygen transmission rate and extend The shelf life of the product.
At present, self-supporting pouch packaging has been widely used in the packaging of fruit juice drinks, sports drinks, bottled drinking water, smokable jelly, condiments and other products. In addition to the food industry, some products such as detergents, daily cosmetics, and medical supplies are used. Also gradually increased.
The self-supporting bag with zipper can be re-closed and re-opened. Since the zipper is not closed and the sealing strength is limited, this form is not suitable for encapsulating liquids and volatile substances. According to the different sealing methods, it can be divided into four-sealing and three-sealing. Four-sided sealing means that the product packaging has a layer of ordinary sealing besides the zipper sealing at the factory. The ordinary sealing must be torn before use. Using the zipper to realize repeated sealing and opening, this method solves the disadvantage that the zipper has a small edge sealing strength and is not conducive to transportation. The three-side seal is directly sealed with a zipper, and is generally used to hold lightweight products. Self-supporting bags with zipper are generally used to pack some light solids, such as candies, biscuits, jelly, etc., but self-supporting bags with four sides sealing can also be used for packaging rice, nuts, dates, etc.
Post time: Oct-30-2021