In the modern packaging industry, three-side sealed stand up bags, zipper bags and various liquid bags are widely used in food, daily chemicals, medicine, agriculture and other fields due to their lightness, practicality, beauty and versatility.

The dimensional accuracy of the sealing strip, the cutting flatness of the bag opening and the stability of the hot pressing process will all affect the use effect of the final product.

In today's highly competitive market environment, product packaging is not only a "coat" to protect the product, but also an important carrier for brand display and marketing promotion.

In the field of food packaging, three-side seal stand-up bag has become the choice of many food companies due to its unique structure and portability.

In today's competitive market environment, it is particularly important to protect brand interests from counterfeit and shoddy products.

Ensuring the safety of the three-side seal stand-up bag and its contents during transportation and storage is a key consideration in packaging design.