The self-supporting stand up pouch bag is a flexible packaging bag with a horizontal support structure at the bottom, which does not need to lean on any support and can stand on its own regardless of whether the bag support bag is opened or not. Stand-up bags have shelf display. In addition, in order to meet personalized consumption needs, stand-alone bags can also add personalized design elements, such as handles, curved contours, resealable zippers, etc., which greatly enhances consumers' desire to buy. At present, self-supporting bags have been widely used in the packaging of food, fruit juice drinks, respirable jelly, condiments, pet food and so on.
The self-standing zipper bag refers to adding a zipper to the original flexible packaging bag, thereby adding a resealable function to the packaging bag, so that consumers can repeatedly seal uneaten food. In developed regions such as Europe and the United States, zipper bags have been widely used in food packaging fields such as meat, cheese, frozen food, nuts, candy and cakes, and currently our self-supporting zipper bags are mainly used in the field of betel nuts and tea. The self-supporting zipper bag used for food packaging mainly includes three series: press-fit type, slider type and zipper strip type.