Classification Of Stand-up Bags

Stand-up bags are basically divided into the following five types:
1. Ordinary stand-up bag:
The general form of self-standing bags adopts four-edge sealing form and cannot be re-closed and opened repeatedly. This kind of self-standing bags are generally used in the industrial supplies industry.
2. Stand-up bag with suction nozzle:
The stand-up bag with a suction nozzle is more convenient for pouring or absorbing the contents. At the same time, it can be re-closed and opened repeatedly. It can be considered as a combination of the stand-up bag and the ordinary bottle mouth. This kind of stand-up pouch is generally used in daily necessities packaging and is used to hold liquid, colloid and semi-solid products such as beverages, shower gel, shampoo, ketchup, edible oil, jelly, etc., such as the famous CiCi.
3. Zippered stand-up bag:
Zippered stand-up bags can also be re-closed and opened repeatedly. Since the zipper is not closed and has limited closing strength, this form is not suitable for packaging 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 ordinary edge sealing in addition to the zipper seal when it leaves the factory. The ordinary edge sealing needs to be torn open before use. The zipper is then used to achieve repeated sealing. This method solves the disadvantage of the weak edge sealing strength of the zipper, which is not conducive to transportation. The three-edge sealing uses zipper edge sealing directly as a seal, and is generally used to contain lightweight products. Zippered stand-up bags are generally used to package some light solids, such as candies, biscuits, jelly, etc., but four-edge self-supporting bags can also be used to package heavier products such as rice and cat litter.
4. Mouth-shaped stand-up bag:
The mouth-like stand-up bag combines the convenience of a stand-up bag with a suction nozzle and the cheapness of an ordinary stand-up bag. That is, the function of the suction nozzle is realized through the shape of the bag itself. However, mouth-shaped self-standing bags cannot be opened repeatedly, so they are generally used in the packaging of disposable liquid, colloid, and semi-solid products such as beverages and jelly.
5. Special-shaped stand-up bag:
That is, according to packaging needs, new self-standing bags of various shapes are produced based on changes in traditional bag shapes, such as waist design, bottom deformation design, handle design, etc. It is the main direction for the value-added development of stand-up bags.