Strength Parameters of Corrugated Cardboard and Corrugated Cardboard Joints

The aim of the article is to determine the strength parameters of corrugated cardboard as well as adhesive and embossed joints of corrugated cardboard, which is used to produce textured unit packaging in the form of boxes. The subject of the research were two types of corrugated cardboard: three-layer (with B flute type) and five-layer cardboard (in two flute configurations: B+B and B+C), from which unit packaging was made in the form of boxes. These cardboard boxes were joined with adhesive (by making adhesive joints) and embossed joints were made in the corners of the box (where the individual sides of the box were folded). The tensile strength (in accordance with PN-EN ISO 1924-2) was analyzed, both of the material itself in two directions (transverse and longitudinal to the direction of arrangement of the paper layers), as well as of adhesive and shaped (embossed) joints. Based on the strength tests, it was noticed that cardboard samples subjected to a force transverse to the direction of paper layer arrangement have a greater failure force, and this applies to the three analyzed types of cardboard (B, B+B and B+C flute types), although the difference is greater occurs in the case of cardboard: three-layer (approx. 25%). Based on the research, it can be concluded that both the type of cardboard and the type of the joints affect the strength parameters of the unit packaging.

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Opracowanie rekordu ze środków MNiSW, umowa nr POPUL/SP/0154/2024/02 w ramach programu "Społeczna odpowiedzialność nauki II" - moduł: Popularyzacja nauki (2025).