Paper tube for winding materials

摘要

An improved paper tube is described. The paper tube has a core with an adhesive on the core. A pierced protrusion layer comprising pierced protrusions is wound on the core and adhered to the core by the adhesive wherein the adhesive at least partially fills the pierced protrusions. A surface adhesive is on the pierced protrusion layer.

主权项

1. An improved paper tube comprising:
a core; an adhesive on said core; a pierced protrusion layer comprising pierced protrusions wherein said pierced protrusion layer is wound on said core and adhered to said core by said adhesive wherein said adhesive at least partially fills said pierced protrusions; and a surface adhesive on said pierced protrusion layer wherein said surface adhesive is between said pierced protrusions and has a thickness which is less than a height of said pierced protrusions.