| 摘要 |
PURPOSE: A corrugated cardboard is provided to maximize the advertizing effect of a product by printing the advertizing or packaged product related content on the surface of the wave shape paper and thus forming hologram if the printed content is exposed to the outside. CONSTITUTION: A corrugated cardboard(10) comprises a concave section(14) and a convex section(15). The concave section is integrally connected to the rear paper(11). On the cardboard, the concave section and the convex section are successively formed. The cardboard has a wave shape when viewing from the plane. The cardboard is formed so that the length projected toward the convex section from the concave section is long and the length projected toward the concave section from the convex section is short. A special corrugated cardboard is formed so that the convex portion integrally bonds the exposure paper to the top of the surface paper integrally connected to the convex portion.
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