A method of forming a paper container uses a three ply corrugated material having at least one inner or outer sheet of paper that may be stretched or compressed circumferentially to permit subsequent rolling of the corrugated material about a mandrel. A flattening of the upper and lower edges of the...http://www.google.de/patents/US6126584?utm_source=gb-gplus-sharePatent US6126584 - Method for forming a container with corrugated wall
