Packaging containers

Abstract

This product is formed by press-molding paperboard base paper, and is mainly used as a container for storing food and the like. As shown in the "Reference end view showing the state of use", this product consists of a container body with a flange, and a film-like lid material attached to the upper surface of the flange so as to cover the upper part of the container body. As shown in the "Plan view", "AA end view" and "BB end view", the outer edge of the flange of this product has a curled edge, and the upper end of the curled edge is formed to be located at the same height as the upper surface of the flange. As a result, as shown in the "Reference end view showing the state of use", the lid material is top-sealed to the flange while containing food (contents), and the flange is flat, resulting in excellent top-sealing properties. In addition, since the curled edge is not located on the outer extension of the mounting surface of the lid material, it is easy to attach the lid material, and the yield is improved.

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