Four Sides Sealed Bag

The four-side sealing bag is a bag that is packaged in a heat-sealed bag on all four sides. Usually a whole piece of packaging film is divided into two halves and packaged opposite each other. The method of overall heat sealing and then single bag cutting is used. One side is controlled during production. Alignment can achieve good packaging results. Therefore, both packaging materials and production equipment have high adaptability and stability. Four-side seal packaging bags are commonly seen in bread packaging bags. This type of packaging bag has folds on the left and right sides. The space is larger than that of three-side seal packaging bags. It can hold more products. The overall shape is also more three-dimensional, and it is more three-dimensional than three-side seal packaging bags. Higher level,Some nut products and cereal products will also use this kind of packaging bag. After packaging the product in a four-side sealing bag, it will form a cube. The packaging effect is good, it can be used for food preservation and is suitable for multiple recycling; using the new printing process, it can be more Highlight the graphics and trademarks of the packaging to create outstanding visual effects. The four-side sealing bag is resistant to cooking, moisture-proof, and has good vacuuming effect. In addition to these characteristics that other packaging bags may also have, its strong anti-oxidation, anti-static and other characteristics can better protect the product from damage due to external environmental factors and is highly efficient. Extended shelf life.