Packaging container lids

Abstract

The article of the present application is a lid for a packaging container that is attached by sealing to the opening edge of a container that stores food, and as shown in the reference enlarged cross-sectional view, it is made of a laminated structure of a first layer made of an easy-open file with a thickness of 0.03 mm, a second layer made of a biaxially oriented nylon file with a thickness of 0.015 mm, and a third layer made of a polyethylene terephthalate file with a thickness of 0.012 mm, and a slit with a width of 0.2 mm is engraved by laser processing through the first and second layers. In the plan view, the solid line represents the slit.

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