Stand up bags refers to a flexible packaging bag with a horizontal support structure at the bottom, which can stand on its own without relying on any support and whether the bag is opened or not. Stand up bag is a relatively new form of packaging, which has advantages in many aspects such as upgrading product grades, enhancing shelf visual effects, portability, ease of use, freshness preservation and sealability.
Stand up bags classification:
✦ Ordinary stand up pouch: and general stand-up pouch, with four-side sealing, which cannot be reclosed and opened repeatedly. This kind of stand-up pouch is generally used in the industrial supplies industry.
✦ Stand up pouches with suction nozzle: The stand up pouch with suction nozzle is more convenient to pour or absorb the contents, and at the same time, it can be reclosed and opened repeatedly, which can be considered as the combination of stand up pouch and ordinary bottle mouth. This kind of stand-up pouch is generally used in daily necessities packaging for liquid, colloid, and semi solid products such as beverages, shower gels, shampoos, ketchup, edible oil, and jelly, such as the famous Xizhilang CiCi.
✦ Special shaped stand up bags: It is a new stand-up pouch of various shapes produced by changing the traditional bag shape according to the packaging needs, such as waist design, bottom deformation design, handle design, etc. It is the main direction for the value-added development of stand up bags at present.
✦ Stand up bag with zipper: The stand-up pouch with zipper can also be reclosed and opened repeatedly. Since the zipper is not closed and the closure strength is limited, this form is not suitable for packaging liquids and volatile substances.
According to the different edge sealing methods, it is divided into two types: four edge sealing and three edge sealing. Four edge sealing means that the product package has a layer of ordinary edge sealing besides the zipper seal when it leaves the factory. The ordinary edge sealing needs to be torn off before use. Then use the zipper to realize repeated sealing. This method solves the disadvantage that the zipper edge sealing strength is small and is not conducive to transportation. The three side seal is directly sealed with a zipper seal, which is generally used to hold lightweight products.
Stand up bags with zippers are generally used to pack some light solids, such as candy, biscuits, jelly, etc., but stand up bags with four sides can also be used to pack heavier products such as rice and cat litter.
✦ Mouth like stand up pouches: Mouth like stand-up pouch combines the convenience of a stand up pouch with a suction nozzle and the cheapness of an ordinary stand up plastic pouches. That is, the function of the suction nozzle is realized by the shape of the bag body itself. However, mouth like stand up pouches cannot be resealed. Therefore, they are generally used in the packaging of disposable liquid, colloid, and semi solid products such as beverages and jellies.
Qingdao Caso Packing specializes in the production of baby feeding bags, food packaging bags, self-supporting nozzle bags, aluminum foil bags, daily chemical nozzle bags, self supporting valve bags, bag-in-box, food packaging bags, special water bags and other packaging series.
