The four-sided sealed bag is a bag for things. It is cheap and widely used, but it is prone to many problems during transportation and storage. For example, when the pack is stored, the packaging bag is susceptible to explosion due to overlapping of goods. Due to improper extraction during transportation, the packaging bag is easy to fall off and break. In the process of use, the processing of the four-sided sealing bag is not easy to tear, so it is always hard to tear when it is not easy to tear. For example, the strength of the packaging bag is insufficient, and it is easy to tear the entire packaging and many other problems. In order to provide the strength of the packaging bag on the market, processes such as improving packaging materials or increasing the thickness are often used, so let's learn about the characteristics of the next four-sided bag!

The purpose of the four-sided bag is to solve the shortcomings of the above technology and provide a four-sided packaging bag with simple design, reasonable structure, easy processing, safety and durability. In order to solve the above problems, the four sides of the four-sided bag body are closed, the top of the bag is sealed to form a sealed tongue, and the two sides of the bag are provided with folded walls, fold lines and opposite edges. The folded walls are symmetrically distributed along the fold line, and the face boundary is located between the folded walls and the surface of the pocket.

Further, the sealing tongue has an easy tear line and an easy tear portion, and the easy tear is located at one end of the easy tear line.

In addition, the corresponding pocket has a concave-convex lock button and a pair of sealing holes. The bump lock button described here is located on the folding wall window sill, under the line that is easy to tear. The pair of sealing holes are respectively provided on one of the folding walls on both sides, at the bottom of the sealing tongue, and at one end of the sealing of the folding wall.

In addition, the sealing hole is bonded to the connecting wall by heat sealing, and further said that the half-connected walls form an included angle, and the included angle is 25-80. Further, the angle described is 60 degrees. In addition, a reinforced sealing surface is located between the sealing tongue and the top of the pocket, said reinforced sealing surface being arcuate. Further, one end of the reinforcing seal extends to one end of the folded wall seal and the other end extends between the folded wall and the face boundary.

The advantages of the four-side seal bag are: the bag has a folding wall seal and a reinforced sealing surface, good sealing effect, simple structure, the sealing hole is installed on the folding wall on both sides, the position is reasonable, the structure is simple, the folding wall and the sealing tongue structure are simple, the bag design Simple, reasonable structure, convenient processing, safe and durable, and good sealing effect.

The above is the characteristics of the four-sided bag, if you need to know more about the four-sided bag of relevant knowledge, you can contact us at any time! Customer service online at any time to provide services for you! Our company has many years of experience in producing four-sided sealed bags, and looks forward to your joining!