Can for preserving foodstuffs and process for its manufacture

摘要

This invention relates to a can for preserving foodstuffs and a process for its manufacture. The can which can be closed and sealed by means of conventional machines and sealing methods comprises a basically cylindrical can body of an aluminum-plastic composite which is joined permanently at one end directly to a can bottom and at the other end to a metal lid via a metal ring which is flanged to the said lid. The process of the invention comprises the combination of the following steps: (a) Affixing the bottom to the body made of an aluminum-plastic composite. (b) Affixing the metal ring to one end of the body by means of an adhesive and applying pressure and elevated temperature to produce welding or sealing. (c) Flanging a metal lid onto the metal ring affixed to the can.