Collapsible tube package and method of construction

摘要

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