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adopts the four-sealing method, which cannot be re-closed and opened repeatedly. this kind of stand-up pouch is generally used in the industrial supplies industry.

with a suction nozzle is more convenient to pour or draw the contents, and at the same time, it can be re-closed and opened repeatedly, which can be considered as a combination of the stand-up pouch and the general bottle mouth. this kind of stand-up pouch is generally used in the packaging of daily necessities, for beverages, shower gel, shampoo, ketchup, edible oil, jelly and other liquid, colloid, semi-solid products, etc.


with zippers can also be re-closed and re-opened, because the zipper method does not close and the closing strength is limited, so this method 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 general edge sealing in addition to the zipper seal when it leaves the factory. the zipper is then used to achieve repeated sealing. this method solves the defect that the zipper edge sealing strength 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.


combine the convenience of stand-up pouches with suction nozzles and the cheapness of . that is, the function of the suction nozzle is realized through 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 liquid, colloidal and semi-solid products for one-time use such as beverages and jelly.

according to the needs of packaging, various shapes of new have been changed on the basis of traditional bag types, such as waist design, bottom deformation design, handle design, etc. it is the main direction of the value-added development of at present.

with the progress of society and the improvement of people's aesthetic level and the competition of various professions, the design and printing of stand-up bags have become more and more colorful, and there are more and more expression methods. the development of has a tendency to gradually replace the position of traditional stand-up bags. .