Classification and application scope of stand-up pouches
With the development of society and the improvement of people's aesthetic standards, the development of stand-up pouches has been continuously driven, with a wide variety of packaging methods appearing in the public eye. Stand-up pouches are widely used in food 、 daily necessities 、 medicine etc. categories.

Its specific classification is as follows:
1、 General Stand-Up Pouches
These are ordinary stand-up pouches, using a four-side seal, and cannot be reopened. They are generally used for industrial products.
2、 Spout Pouches
This type of stand-up pouch can be easily tilted, and can be reopened. It is used for daily necessities and food packaging, such as beverages, laundry detergent, and other liquid or semi-fluid products.
3、 Zipper Stand-Up Pouches
Zipper stand-up pouches can be reopened, but due to the zipper design, the sealing function is limited, and there are certain limitations in the application field. For example, liquids are not suitable for this type of packaging.
Zipper stand-up pouches can be further classified according to their zipper installation method:
a. Four-Side Seal
This sealing method refers to an additional layer of ordinary sealing outside the zipper seal. When using, the ordinary seal needs to be opened first, and then the zipper seal is used, which is a double-layer seal. This method improves the weakness of the zipper seal strength during transportation. It can be used for packaging heavier items such as rice.
b. Three-Side Seal
The three-side seal only has one layer of zipper seal, suitable for packaging lighter products, such as candy and biscuits.
4. Spout-like Stand-Up Pouches
This packaging method uses the shape of the bag itself to achieve a spout-like form, and it cannot be reopened. It is mostly used for beverages, jelly, and other liquid or semi-fluid foods for single use.
5. Irregular Stand-Up Pouches
These are irregularly shaped stand-up pouches, which can create packaging styles different from conventional shapes according to product characteristics or display needs. Such as handbag style, waist-cinched style, etc.

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