Inner Seal With A Sub Tab Layer

摘要

A pull-tab sealing member for a container containing an upper laminate forming a pull-tab bonded to a lower laminate capable of being heat sealed to a container's mouth or opening. The upper laminate defines the pull tab wholly within a perimeter or circumference of the seal. The sealing member further includes a sub tab layer or member under the gripping tab for structural support.

主权项

1. A tabbed sealing member for sealing to a rim of a container, the tabbed sealing member comprising:
a lower seal portion having a top surface with a total surface area and including a heat sealable layer configured for heat sealing to a container rim; an upper laminate at least partially bonded to the top surface of the lower seal portion to form a gripping tab defined wholly within a perimeter of the lower seal portion; the upper laminate having a top surface with a surface area less than the total surface area of the lower seal portion defining a circular segment with an edge forming a chord extending across the lower seal portion; and a sub tab layer coextensive with the gripping tab, the sub tab layer bonded to the top surface of the lower seal portion.