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The aim of the article is to determine the strength parameters of corrugated cardboard as well as adhesive and
embossed joints of the corrugated cardboard, which is used to produce textured unit packaging in the form of
boxes. The strength parameters of the unit packages and the materials from which they are made are important
data helpful in selecting the unit packages for packaging the products of a specific mass. The subject of the re-
search were two types of corrugated cardboard: three-layer –single board style made of low wave marked B flute,
for which the average wave height is 2–3 mm and five-layer cardboard double wall (in two flute configurations:
B+B and B+C, where B flute is a low wave, and flute marked C is a medium wave, for which the average wave
height is from 3–4 mm), from which unit packaging was made in the form of boxes. These cardboard boxes were
joined with an adhesive (by making the 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 the ar-
rangement of the paper layers), as well as of the adhesive and the shaped (embossed) joints. Based on the strength
tests, it was noticed that the corrugated cardboard samples subjected to a force transverse to the direction of the
paper layer arrangement have a greater failure force, and this applies to the three analyzed types of the corrugated
cardboard although the difference is greater occurs in the case of the three-layer cardboard(approx. 25%). Based
on the results, it can be concluded that both the types of the corrugated cardboard and the type of the joints affect
the strength parameters of the unit packaging. Based on the test results, it was noted that the direction of the paper
layer arrangement has no effect on the initiating of the failure force, and the value of the initiating of the failure
force in the case of three-layer corrugated cardboard samples is approximately 72–74%, while for five-layer cor-
rugated cardboard it is approximately 80–82%.
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