Foldable Paperboard for Preparing a Paper Tube

摘要

A paperboard comprises a plurality of folding lines and paper panels. The paperboard is either intact or perforated. The paperboard remains unfolded and flattened during the storage and transportation. When it is used, the paperboard is folded up and tightened into a paper tube with a polygonal cross section so that small animals are able to pass through or stay inside the tube.

主权项

1. A paperboard comprising at least two folding lines that separate the paperboard into at least three paper panels, which are either intact or perforated and can be folded up into a paper tube having a polygonal cross section for animal use.