Single-ply paperboard tube and method of forming same

Details Single-ply paperboard tube and method of forming same Single-ply paperboard tube and method of forming same

1994-06-27

1996-12-24

Lavinder, Jack W.

Manufacturing container or tube from paper; or other manufacturi

Tube making

Spiral winding

493302, 156195, 156425, B31C 300, B31C 304

Patent

active

055869637

ABSTRACT:
A single-ply wound paperboard tube is disclosed as is its forming method. The method comprises applying an adhesive to a paperboard ply having relatively thin longitudinal edges and a relatively thick central portion therebetween, then spirally winding the ply about a mandrel in edge-overlapping relation. Preferably, the thinned edges and the thick central portion of the ply share a common face, and the ply is preferably steam-conditioned to raise its temperature and its moisture content prior to the application of the adhesive.

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