What is a stand up pouch？

Stand up pouch aka doypack.The English name of the stand up pouch originated from the French Thimonier company. In 1963, Mr. M.Louis Doyen, the CEO of the French Thimonier company, successfully applied for the patent of the Doypack stand-up pouch. Since then, doypack has become the official name application of the stand-up pouch. to date. By the 1990s, it was widely recognized in the American market, and then popularized all over the world.The stand up pouch is a relatively novel form of packaging, which has advantages in improving product quality, strengthening the visual effect of shelves, portable, easy to use, fresh-keeping and sealability. The stand-up pouch is laminated by PET/foil/PET/PE structure, and can also have 2 layers, 3 layers and other materials of other specifications, depending on the different products to be packaged, and an oxygen barrier protective layer can be added as needed to reduce the oxygen permeability. , extending the shelf life of the product.

Stand-up bags are basically divided into the following five types:
1. Ordinary stand up bag:
And the general form of stand-up pouch, which adopts the form of four-sealed edges and cannot be re-closed and repeatedly opened. This kind of stand-up pouch is generally used in the industrial supplies industry.

2. Stand-up pouch with suction nozzle:
The stand-up pouch with the suction nozzle is more convenient to pour or absorb the contents, and can be re-closed and re-opened at the same time, which can be considered as the combination of the stand-up pouch and the ordinary bottle mouth. This kind of stand-up pouch is generally used in the packaging of daily necessities, for beverages, shower gels, shampoos, ketchup, edible oils, jelly and other liquid, colloidal and semi-solid products, such as the famous CiCi.

3. Stand up pouch with zipper:
Self-supporting pouches with zippers can also be re-closed and re-opened. Since the zipper form is not closed and the sealing strength is limited, this form 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 ordinary edge sealing in addition to the zipper seal when it leaves the factory. The zipper is then used to achieve repeated sealing and opening, which solves the disadvantage that the zipper edge sealing strength is small and 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.