A COLLAPSIBLE TUBE PACKAGE AND METHOD OF CONSTRUCTION.

摘要

A collapsible tube package (10) having a reclosable closure (12) comprises a tubular body (16) having a first open end and a second open end. It also comprises a tube head (14) having an outer shoulder surface (22) and a perimeter edge (20). The tube head (14) is located just inside the first open end of the tubular body (16) such that a continuous wall portion (27) of the tubular body (16) extends longitudinally beyond the perimeter edge (20) of the tube head (14). The continuous wall portion (27) is swaged against and ultrasonically welded to the outer shoulder surface (22). The second open end of the tubular body (16) is flattened and sealed closed. The tube head (14) has an energy concentration ring (26) melted into a sealing interface between the continuous wall portion (27) and the outer shoulder surface (22), and the tubular body (16) and the tube head (14) comprise just two individual parts made of weldable, non-polar plastics having no metal laminates and metal particles therein.