The same as the other types of flexible packaging,the stand up pouches are constituted by material structure.As per the different usage and barrier characteristic,it can be divided into many kinds of material structure.here we only introduce some common used stand up pouch material structure for your reference,not expalin theirs specific functions.

Please note that as the stand up pouches with zipper is not suitable for the liquid or semi-liquid packaging,so its material structure is fewer than the one of heat seal stand up bags.