STAND-UP POUCHES OF STRETCHABLE PAPER

摘要

There is provided a method of forming a stand-up pouch, comprising the steps of: providing a web structure having a w-shaped profile; forming bottom and vertical seals such that a flat stand-up pouch having two superimposed side walls and a bottom is obtained; press-forming at least part of the superimposed side walls; and optionally filling and closing the stand-up pouch, wherein the side walls are composed of a stretchable paper material.