| 摘要 |
A sealed vacuum container (20) has a strip (54) of peelable material heat sealed (60) to the inside wall of the container below the mouth (52) so that the mouth of the bag may be sealed by the strip (54) which may later be broken open by hand without tearing the bag wall. The bag may then be closed, e.g. by a mechanical tie. Preferably, the strip (54) is a co-extrusion of polyethylene and a polyethylene ionomer blend. |
