A resealable closure for a container or package in which package integrity is indicated by a structure which breaks and/or produces an audible sound when the resealable closure is opened for a first time. The package integrity feature, in one form includes at least one strip or frangible structure that is initially affixed to two portions which comprise the resealable closure so that upon opening the resealable closure for a first time, at least one of the strips breaks. The strips may include a weakened portion such as a narrowing. Integrity of the package is indicated by an intact strip viewable upon opening the resealable closure and conversely, a broken or non-intact strip would indicate that the resealable closure has been previously opened. Package integrity may also be shown by a moveable second panel or moveable die cut tab portions.

A resealable closure or package for a container in which package integrity is indicated by a structure which breaks and/or produces an audible sound when the resealable closure is opened for a first time. The package integrity feature, in one form includes at least one strip or frangible structure that is initially affixed to two portions which comprise the resealable closure so that upon opening the resealable closure for a first time, at least one of the strips breaks. The strips may include a weakened portion such as a narrowing. Integrity of the package is indicated by an intact strip viewable upon opening the resealable closure and conversely, a broken or non-intact strip would indicate that the resealable closure has been previously opened. Package integrity may also be shown by a movable second panel or movable die cut tab portions.

The invention resides in a container (10) having at least one plastic surface, having a formation or step having a peripheral edge arranged around an area (18) to be opened; and at least one second surface located in a region adjacent the first surface, and having a recess adjacent the formation on the plastic surface. The first and second surfaces are sealed at an edge of the container for securing an object located therebetween. The plastic surface mid the second surface are configured such that in cross-section a channel (26) is formed between the formation and the recess, and said formation and/or recess is configured to receive and/or guide a cutting edge for opening the container.

Provided is a container with which its body can be deformed with a same external force until most of the contents has been discharged from the container body and to cause the final shape after the deformation to be a constant shape. Also provided is a container with which the contents discharged can be rendered constant, thus making it possible to obtain a diluted product having a constant concentration. The container includes a bottomed container body and a lid member, the container body and the lid member being sealed by an annular seal portion. There is provided a detaching seal portion which is detached in response to increase of pressure inside the container body associated with deformation of the container body. There is also provided a deformation controlling recess whose width is progressively reduced from a back face side of the flange toward the bottom face side.

Provided is a container with which a width and a position of a lid member to be unsealed can be readily made constant, thus making it less likely for contents to be discharged too vigorously and making it easy to predict the discharging direction of the contents. A container body and a lid member of the container body are sealed to each other via an annular seal portion formed along a flanged face of the opening. At a specified position of the annular seal portion, there is provided a detaching seal portion which is to be detached in response to increase of an inside pressure of the container body associated with deformation of the container body based on an external force. At positions facing each other across the detaching seal portion, there are provided non-detaching seal portions comprised of a plurality of annular seal portions extending along a circumferential direction.

Provided is a portion container whose detaching seal portion can be easily detached by a stress applied from a radial inner side based on an inside pressure of a container body, but can be hardly detached by a stress applied from the outside during distribution. Provided also are a seal head for sealing such container and a container sealed with using such seal head. The seal head includes pressing end portions for pressing a lid member against a flange of an opening. At least a portion of the pressing end portions is formed as an uneven projecting portion having different curvature radii in its cross sectional contour between a radial inner portion and a radial outer portion of the opening.

The present disclosure is directed to a child-resistant container which includes a lid having a peripheral flange which defines a lifting tab having top and bottom surfaces. The lid includes a protrusion extending downwardly from the bottom surface of the lifting tab. The container includes a base having an upper peripheral rim and a surface formed in a corner portion of the base between two adjacent sides of the base. The surface includes an aperture to receive the downwardly extending protrusion of the lid when the container is closed forming a child-resistant opening mechanism. The surface is uninterrupted but for the aperture.

A resealable closure for packages is provided which has a package integrity feature. The closure includes a two-ply material having an inner film layer and an outer film layer, forming a top of container. The outer film layer has a sealing panel completely covering a first panel and a second panel of the inner film layer. The sealing panel is permanently attached to the first panel and is releasably affixed a portion of the inner film layer around the perimeter of the first panel to form an opening in the top when the sealing panel with affixed first panel is peeled back from the top. The sealing panel is resealable against the top to seal the opening when the sealing panel is moved back against the top. The package integrity feature comprises the second panel of the inner layer which separates from the sealing panel to indicate that the container has been previously opened.

A resealable package includes a bottom portion defining an interior and including a sealing surface extending about a top of the interior; a film coupled to the bottom portion along at least a portion of the sealing surface and including a tab portion extending inward from one side of the top film; and a seal disposed between the film and the bottom portion and including at least first and second sides that intersect and form a seal portion tip. The seal seals the film to the bottom portion such that the film is configured to be resealably peeled away from the bottom portion along at least a portion of the seal area upon application of a force to the seal tip portion via the tab portion.

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.