The present disclosure pertains to a laminate membrane for sealing an inner compartment in a packaging container comprising a top member and a bottom member. The top and bottom members are laminated sheet materials. The top member has a thickness, a top member first surface and a top member second surface facing the bottom member. The bottom member has a bottom member first surface facing the top member second surface and a bottom member second surface. The laminate membrane is provided with a valve for allowing gas in the inner compartment of the packaging container to exit therefrom. The valve has a valve outer edge and is arranged on the bottom member first surface. The valve is arranged within an opening in the top member such that an opening edge encircles the valve. A surface area of the opening is greater than a surface area of the valve.

Improved packages and methods for constructing packages are provided that reduce or prevent leakage into or out of the package. In particular, the package includes a base member and a lidding member with a reinforced perimeter portion that blocks channels that may form at the interface between the base member and the lidding member from extending to the edge of the base member, such that, e.g., liquids have no path to the package exterior. The perimeter portion may be a thicker region of a first film of the lidding member (e.g., a polyethylene emulsion), or the perimeter portion may be formed using permanent adhesive. Frangible layers and/or cut lines may be defined in the material of the base member or the lidding member to allow a controlled break to occur when the lidding member is peeled away from the base member to provide access to the package contents.

Improved packages and methods for constructing packages are provided that reduce or prevent leakage into or out of the package. In particular, the package includes a base member and a lidding member with a reinforced perimeter portion that blocks channels that may form at the interface between the base member and the lidding member from extending to the edge of the base member, such that, e.g., liquids have no path to the package exterior. The perimeter portion may be a thicker region of a first film of the lidding member (e.g., a polyethylene emulsion), or the perimeter portion may be formed using permanent adhesive. Frangible layers and/or cut lines may be defined in the material of the base member or the lidding member to allow a controlled break to occur when the lidding member is peeled away from the base member to provide access to the package contents.

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.

The present invention is related to a reclosable packaging container comprising a flexible laminate with a build-in opening and reclose feature in the form of a flap, said laminate comprising an inner structure and an outer structure adhesively joined face-to-face by a permanent adhesive, a pattern of pressure-sensitive adhesive being integrated between said inner structure and said outer structure, the pressure-sensitive adhesive being entirely covered by the permanent adhesive, a marginal region delineated by inner and outer score lines comprises the pressure-sensitive adhesive overlaying the permanent adhesive in an imprint region of reduced permanent adhesive thickness, the cumulative thicknesses of the pressure-sensitive adhesive and of the permanent adhesive in the imprint region being substantially the same as the thickness of the permanent adhesive outside this region.

A packaging assembly for holding contents is provided. The packaging assembly includes a self-supporting liner having a wall that encloses sides and bottom of an interior of the liner and defines an open top end of the liner, and a rim that projects outwardly from the wall proximal to the open top end and a return from the rim forming a skirt extending downwardly from the rim. The packaging assembly also includes a lidding assembly including a cover region and a destructible seal region that seals the cover region to the liner extending over and closing the liner open top. The destructible cover region is weaker than the liner and the cover region so that detachment of the cover region from the liner causes the destructible seal region to fail. The lidding assembly includes a first lidding material having a center portion and an outer portion that surrounds the center portion. The center portion is movable with respect to the outer portion to open an opening through the first lidding material while remaining at least partially attached to the outer portion. The lidding assembly also includes a closing feature configured to close and secure the center portion after opening.

Apparatus and methods are disclosed for sealing openings on containers and other structures, permitting selective removal of portions of the seal structure, and for similar selective removal of portions of adhesive elements such as bandages. A seal layer is sized and configured to cover an opening. The seal layer has at least one tear line, where the tear line is positioned and formed for tearing the seal layer for selective removal of a portion of the seal layer from the opening. A tab is connected to the seal layer providing a gripping portion for the user.

Improved packages and methods for constructing packages are provided that reduce or prevent leakage into or out of the package. In particular, the package includes a base member and a lidding member with a reinforced perimeter portion that blocks channels that may form at the interface between the base member and the lidding member from extending to the edge of the base member, such that, e.g., liquids have no path to the package exterior. The perimeter portion may be a thicker region of a first film of the lidding member (e.g., a polyethylene emulsion), or the perimeter portion may be formed using permanent adhesive. Frangible layers and/or cut lines may be defined in the material of the base member or the lidding member to allow a controlled break to occur when the lidding member is peeled away from the base member to provide access to the package contents.

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.

A container closure in accordance with the present disclosure is coupled to a tamper-evident tear strip. The container closure is adapted to be mated with a container to cover an interior region formed in the container and to provide a package.