A paper cup, a paper salad bowl, and a paper lid with an N-shaped design on the bottom.

Abstract

A paper cup, characterized in that it comprises a cup base and a side wall arranged circumferentially around the circumference of the cup base, wherein the cup base comprises a cup base body, a back-folding section formed continuously in one piece with the cup base body, and an extension section formed continuously in one piece with the back-folding section, wherein the extension section is bonded to the inner surface of the side wall and forms an upwardly open receiving space with a certain volume; the back-folding section is a two-layer overlapping structure formed by folding and fixing a part of the cup base, wherein one side of the back-folding section is attached to the side wall to form an N-shaped connecting reinforcement section with a three-layer overlapping structure.