US 12,252,300 B2
Packaging bag as well as method for production
Jochen Brauer, Lohne (DE)
Assigned to Mondi AG, Vienna (AT)
Filed by Mondi AG, Vienna (AT)
Filed on Apr. 22, 2022, as Appl. No. 17/726,714.
Claims priority of application No. 21170166 (EP), filed on Apr. 23, 2021.
Prior Publication US 2022/0340336 A1, Oct. 27, 2022
Int. Cl. B65D 30/08 (2006.01); B31B 70/00 (2017.01); B31B 70/62 (2017.01); B31B 70/74 (2017.01); B65D 30/18 (2006.01); B65D 33/22 (2006.01); B31B 155/00 (2017.01); B31B 170/20 (2017.01)
CPC B65D 31/02 (2013.01) [B31B 70/004 (2017.08); B31B 70/62 (2017.08); B31B 70/79 (2017.08); B65D 31/08 (2013.01); B65D 33/22 (2013.01); B31B 2155/003 (2017.08); B31B 2170/20 (2017.08)] 17 Claims
OG exemplary drawing
 
1. A packaging bag having a bag body formed from a flat web, the bag comprising:
a first front wall;
a second front wall;
a heat-sealed seam that closes the bag body at a lower end by connecting the first front wall and the second front wall either directly or via side folds; and
a stand-up bottom formed in a bottom section of the bag body by folding and gluing the first and second front walls;
wherein the flat web has a varnish coating on an outside of the bag body;
wherein the first front wall has an adhesive region kept free of the varnish coating in the bottom section of the bag body; and
wherein the flat web comprises a layer of a material selected from the group of polyethylene (PE), polyethylene terephthalate (PET), polypropylene (PP), polylactide (PLA), and paper that borders on the varnish coating, the varnish coating being in contact with the layer of material, wherein to form the stand-up bottom, the front walls are folded over so that sections of the adhesive region of the first front wall lie on top of one another.