Corrugated cardboard having fluting consisting of two heat-fixed paper sheets and its manufacturing process

摘要

The invention relates to a corrugated cardboard of the type comprising at least one fluting element inserted between two covering sheets and adhesively bonded to the latter by their parts in mutual contact. According to the invention, the fluting element is constituted by two paper sheets 1 assembled together with the aid of a thermoplastic material forming an integral part of the two paper sheets or constituting a separate film inserted between the said sheets. <IMAGE>