Abstract: A resealable closure for a container in which package integrity is indicated by a structure which connects the closure to a remaining portion of the container which must be broken in order to gain access to the contents of the container for a first time. The package integrity feature, in one form, includes a structure associated with the closure, wherein upon opening the closure for a first time, the structure stretches, increasing a length of the structure until the structure eventually breaks, leaving one or both residual ends of the broken structure rippled or curved upward from the remainder of the container. In one alternative form, the structure is associated with a pull tab of the sealing panel, which comprises the closure, whereby either the structure must be broken first, prior to pulling back the sealing panel, or while pulling back the sealing panel for a first time, the structure breaks, prior to gaining access to the contents therein.

Abstract: A flexible packaging laminate is formed to have a built-in opening and reclose feature by forming the laminate as a two-part structure having an outer structure joined in face-to-face relation with an inner structure. Score lines are formed in both structures to enable an opening to be formed through the laminate by lifting an opening portion (e.g., a flap or the like) of the two structures out of the plane of the laminate. The score line through the outer structure defines a larger opening than the score line through the inner structure, such that a marginal region of the outer structure extends beyond the edge of the opening portion of the inner structure. A pressure-sensitive adhesive is used to re-adhere the marginal region to an underlying surface of the inner structure adjacent the opening through the laminate.