STAND-UP POUCHES OF STRETCHABLE PAPER
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United States of America Patent
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Nov 24, 2016
app pub date -
Feb 3, 2015
filing date -
Feb 6, 2014
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Abstract
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.
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