FIELD: manufacturing technology.
SUBSTANCE: group of inventions relates to a plastic bag and method of its production. Plastic element to form welding section is connected with plastic bag and is pressed flat. Section of unloaded element towards lateral edges has a wedge-shaped form. Plastic element includes one or more first edges, which are parallel to lateral edges. Its section at lateral edges of welding section of port forms second edges, located at lateral edges and directed thereto at an acute angle. Disclosed is a method of making a bag for liquid.
EFFECT: technical result consists in creating a strong connection between plastic element and bag.
27 cl, 6 dwg
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