Standing bag type so far, stand-up pouches basically divided into the following five categories: 1. Ordinary stand-up pouches: and the general form of stand-up pouches, four-Edge form, can not be closed and re-opened again, this stand-up pouches are generally used in industry supplies industry. 2. With the nozzle stand-up pouches: the stand-up pouch with nozzle or draw more convenient dumping the contents, but can be re-closed and re-opened, can be considered a combination of stand-up pouches with ordinary bottle. This stand-up pouches are commonly used commodity packaging, used to hold beverages, shower gel, shampoo, ketchup, cooking oil, jelly and other liquids, gels, semi-solid products, such as the famous Lang CiCi so on. 3. Stand-up pouch with zipper: Stand-up pouch with zipper closure and repeat the same can be re-opened, thanks to the zipper closed form is not closed and limited strength, so this form is not suitable for packaging liquid and volatile substances. Depending on the method is divided into four Edge Edge Edge three two, four Edge refers to the product packaging at the factory as well as a layer of plain edge, when you need to first use outside the ordinary Edge torn zipper closure, re-use zipper closure Kai repetitive, this approach solves the small zipper sealing strength is not conducive to transport shortcomings. The three Edge Edge is the direct use as a zipper closure, typically used to hold lightweight products. Stand-up pouch with zipper generally used for packaging of some lightweight solid, such as candy, cookies, jelly, etc., but the four Edge of stand-up pouches also be used for packaging rice, cat litter and other heavy products. 4. Imitation mouth type of stand-up pouches: Imitation lips stand-up pouches with a nozzle combines the convenience of stand-up pouches with ordinary stand-up pouches cheap. I.e., to achieve the function of the nozzle by the shape of the bag itself. But imitation mouth type of stand-up pouches can not be repeated closures start, therefore, generally used in liquid, gel, semi-solid product packaging beverages, jellies and other one-time use. 5. Alien standing bag: that according to the packaging needs, in the traditional bag-type on the basis of changes arising from the new stand-up pouches in various shapes, such as waist design, the bottom of the variant design, handle design. Stand-up pouches is the main direction of development of value-added projects. As competition intensifies social progress and improve people's aesthetic standards, and various industries, standing pouch design and printing becomes more colorful, more and more of its manifestations, has shaped the development of stand-up pouches gradually replacing the traditional stand-up pouches status trend.