A standing bag is also known as a backpack. The English name of the standing bag originates from the French Timmonier company. Standing bag is a relatively novel form of packaging, with the advantages of improving product quality, strengthening the visual effect of the shelf, portability, easy to use, preservation, sealing and so on. The standing bag is divided into two layers (PET/PE), three layers (PET/AL/PE) according to the different packaging products. An oxygen barrier protective layer can be added as needed to reduce oxygen permeability. Extend the shelf life of the product.
Self-supporting bags are basically divided into the following three types:
1. Regular Standing bag:
The general form of the vertical bag, in the form of four sides, can not be closed and repeatedly opened. This vertical bag is generally used in the industrial supplies industry.
The vertical bag with suction nozzle is more convenient to pour or suck the contents, and can be re-closed and re-opened at the same time, which can be considered as the combination of the vertical bag and the ordinary bottle mouth. This vertical bag is generally used for the packaging of daily necessities.
Self-holding bags with zippers can also be re-closed and re-opened. Because the zipper form is not closed and the sealing strength is limited, this form is not suitable for encapsulating liquids and volatile substances. According to the different edge sealing methods, it is divided into four edge sealing and three edge sealing. Four-side sealing means that in addition to zipper sealing, there is a layer of ordinary sealing edge when the product package is packaged at the factory. Then the zipper is used to achieve repeated sealing, which solves the shortcomings of small zipper side sealing strength and is not conducive to transportation. The three sealing edges are directly sealed with zippers, generally used for loading lightweight products.
Post time: Jan-04-2024