PP aluminum foil paper seal liner is used to seal the PP containers, which the function is anti-theft, forgery, moisture-proof (anti-leakage) and extended the product shelf life. Aluminum foil composite paper will be embedded in bottle cap, so that the exposed aluminum foil, and then tightened up unto bottle cap. Through the electromagnetic induction sealing machine to induction heating bottle cap so that between the aluminum foil and paperboard is lose adhesive and automatic separation. The bottle and the aluminum foil are bonded together to form a reliable hot-melt sealing.
