Novel corrugated cardboard, process and machine enabling this product to be produced

摘要

The present invention relates to: - a novel corrugated cardboard comprising braces (spacers) 4 made from air-curable soft pulp, which are orthogonal to the conventional ribs and which are produced inside the corrugations of the ribs; - a process for producing the braces (spacers); - a machine enabling these braces (spacers) to be produced. <IMAGE>