The vented seal is made of a breathable film and a Heat induction seal (HIS) through ultrasonic or hot melt welding, which fully achieves the effect of “breathable and no leakage”. The vented seal has a simple design, excellent air permeability and excellent resistance to surfactants. This product is developed to prevent the filling container (bottle) from being shaken or placed at different temperatures to produce gas after filling a certain liquid, thereby causing the container to deform or the bottle cap to crack.
Vented liner is best airflow performance in the industry, multiple venting options fulfill various performance needs. Offered in one piece foam or two piece wax bonded to pulp.