Rigid corrugated carboard

Abstract

The invention relates to a method for manufacturing a rigid corrugated board, comprising, beforehand, a stage for the production of at least one single-faced web of given width by the adhesive bonding of a flute to a single-faced covering. According to the invention, the following stages are carried out: a) the single-faced web is bent according to a desired shape, b) the tops of the flute of the bent single-faced web are coated with glue, c) at least one double-faced covering of the same width as the single-faced web is adhesively bonded to the said single-faced web in such a way that it matches the bent shape of the said web. The invention also relates to an apparatus for carrying out the method and to the rigid corrugated board obtained according to the method.

Dependencies are inferred from the claim text.