A big change in Wal-Mart recently is that their packaging bag
s have become more and more beautiful. From food to daily necessities to underwear and underwear packaging bags, stand-up bags have been applied to almost every corner. Four-side sealing stand-up pouches, suction nozzle stand-up pouches, bone zipper stand-up pouches, imitation mouth stand-up pouches, special-shaped stand-up pouches, eight-side sealing stand-up pouches and many other types of stand-up pouches are used in different types of commodities. Professional flexible packaging
manufacturers believe that stand-up pouches have advantages in improving product quality, strengthening shelf visual effects, carrying light, convenient use, preservation and sealability. The stand-up pouch can be composed of 2 layers, 3 layers and other materials, depending on the product to be packaged, and an oxygen barrier protective layer can be added as needed to reduce the oxygen permeability and prolong the shelf life of the product. 1. The general form of self-supporting bag with four-side sealing adopts the form of four-sealing side, which cannot be re-closed and repeatedly opened. This kind of self-supporting bag is generally used in the industrial supplies industry. 2. Self-supporting bag with suction nozzle The self-supporting bag with suction nozzle is more convenient to dump or absorb the contents, and at the same time, it can be re-closed and repeatedly opened, which can be considered as the combination of the self-supporting bag and the ordinary bottle mouth. This kind of stand-up pouch is generally used in the packaging of daily necessities, for beverages, shower gels, shampoos, ketchup, edible oils, jelly and other liquid, colloidal, semi-solid products, such as the famous CiCi. 3. Bone zipper stand-up pouches The stand-up pouch with a zipper can be re-closed and re-opened. Since 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 edge sealing means that the product packaging has a layer of ordinary edge sealing in addition to the zipper seal when it leaves the factory. The zipper is then used to achieve repeated sealing and opening, which solves the disadvantage that the zipper edge sealing strength is small and is not conducive to transportation. The three-sealed edge is directly sealed with a zipper edge, which is generally used to hold lightweight products. Self-supporting pouches with zippers are generally used to package some light solids, such as candy, biscuits, jelly, etc., but four-sided self-supporting pouches can also be used to package heavier products such as rice and cat litter. 4. Imitation mouth stand-up pouch The imitation mouth stand-up pouch combines the convenience of a stand-up pouch with a suction nozzle and the cheapness of an ordinary stand-up pouch. That is, the function of the suction nozzle is realized by the shape of the bag body itself. However, the mouth-shaped stand-up pouch cannot be re-sealed. Therefore, it is generally used in the packaging of single-use liquid, colloidal and semi-solid products such as beverages and jelly. 5. Special-shaped stand-up pouches are new stand-up pouches of various shapes produced by changing on the basis of traditional bag types according to packaging needs, such as waist design, bottom deformation design, handle design, etc. It is the main direction of the value-added development of stand-up pouches at present. 6. Eight-side sealing self-supporting bag Eight-side sealing bag is also called eight-side sealing flat bottom bag. Its bottom is flat, and there are eight sealing sides, hence the name. There are 4 edge seals at the bottom and 2 edge seals on the left and right, for a total of 8 edges. The eight-sided sealed bag has 5 display surfaces: 1 on the front and back, 1 on the left and right, and 1 on the bottom. In this way, the eight-sided sealed bag can carry more information and media information, and better display and promote products and brands. With the progress of society, the improvement of people's aesthetic level and the intensification of competition in various industries, the design and printing of stand-up bags have become more and more colorful, and the development of stand-up bags has gradually replaced the traditional packaging.
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