What are the advantages of KST upright bag packaging

Upright bags, that is, when filled, can support the weight upright on the shelf. Upright bags have a hem that stretches open when something is loaded, allowing the bag to stand on a relatively flat bottom. They are widely used to package liquid products such as kitchen cleaners and so on, because they can replace hard packaging materials such as cans and bottles, so the market and use is growing.

The vertical bag design contains a horizontal bottom hem and is made of two pieces of flexible packaging material. In the other, only one film is used, and the film is folded into an M-shape to form the bottom edge; Can also be designed without bottom fold edge, and side fold or fold edge, form an overlapping flat sheet bottom. These bags don't stand up as well as bags with a hem at the bottom and are used for dry goods rather than liquid products.

In both cases, a certain amount of product weight folds the edges of the bag open, allowing the bag to stand on its own.