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.

The present invention relates to a resealable container comprising: a polyethylene terephthalate-based container body comprising a bottom side and at least one upwardly extending sidewall, wherein the sidewall terminates in an open end of the container; a flexible film sealed to the container body, over the open end of the container, wherein the flexible film comprises: a polyethylene-based first film layer; a pressure sensitive adhesive layer adjacent a lower surface of the first film layer; a polyolefin plastomer skin layer adjacent a lower surface of the pressure sensitive adhesive layer, wherein the first layer, pressure sensitive adhesive layer, and skin layer are coextruded; and a heat seal layer printed onto a lower surface of the skin layer and heat sealed to the container body.

A packaging bag according to one example includes: a bag body configured to store a plurality of folded patches; an opening formed in the bag body; and a flap label configured to cover the opening such that the opening is capable of being opened and closed. The opening is formed such that Lp/La is 1.5 to 2.5 and Lq/Lb is 1.8 to 2.8, where La denotes a first length of the opening along a first direction, Lp denotes a first length of the folded patch along the first direction, Lb denotes a second length of the opening along a second direction orthogonal to the first direction, the second length being shorter than the first length, and Lq denotes a second length of the folded patch along the second direction.

The invention comprises an ovenable packaging structure having an integral one-way valve. The laminate structure comprises an outer layer having a cut line which defines a flap that is separable from the outer layer, wherein the outer layer is adhered to an inner layer having a cut line which is offset from the outer cut line and defines a portion that is separable from the inner layer along the inner cut line and defines an opening into the packaging structure. The adhesive between the layers comprises, in an embodiment, a channel of pressure sensitive adhesive which surrounds both the outer cut line and the inner cut line, wherein the channel of pressure sensitive adhesive defines the perimeter of at least one adhesive-free valve chamber within said channel. The valve chamber comprises at least a portion of the outer cut line and the inner cut line.

An easy-peel laminated food can, comprising a can body (100) made by punching a laminated metal sheet, and a cover body (200) made of a laminating film. The can body (100) comprises a cavity (110) provided with an opening (112) and an annular bonding body (120) circumferentially arranged at the edge of the opening (112), and the cover body (200) and the annular bonding body (120) may be thermally pressed and bonded to be sealed.

Adhesive compositions that replace gaskets and liners in sealing applications for packages that are detachable with hand force are described. The adhesive compositions are particularly useful in preventing leaks and spillage during storage and transport of its packaged contents. Advantageously, the adhesive composition provides packages with (1) a removal torque of from about 4 to about 20 in-lb and (2) resealable torque on subsequent openings of from about 2 to about 15 in-lb, measured in accordance to ASTM D2063.

A multi-layer film and a film package made from the film are described herein that provide resealing capabilities by utilizing a tacky layer within the multi-layer film. The multi-layer film can include an outer film portion including the embedded tacky layer and an inner film portion. An opening feature formed in the multi-layer film includes a flap configured to be manipulated by a user to create an opening through the multi-layer film. The inner film portion can include a release layer configured specifically to interact with the tacky layer to provide a desired separation peel force and resealing functionalities. The outer film portion can include an outer film layer disposed on an opposite side of the tacky layer from the release layer that is configured to permanently adhere to the tacky layer.

A reclosably sealed cup including a cup having a sealing perimeter, a lid having a reclosable sealing arrangement, associated with the sealing perimeter. The lid is adapted to reclosably cover the cup, and the reclosable sealing arrangement adapted to reclosably seal the cup along the sealing perimeter. The reclosably sealed cup further includes an interfacial arrangement, interdisposed between the sealing perimeter and the reclosable sealing arrangement. The interfacial arrangement has a first surface disposed towards, and forming a base adhesive attachment with, the sealing perimeter, and a second surface, distal to the first surface, disposed towards the reclosable arrangement, and forming a reclosable adhesive attachment therewith.

A container including a containment wall, defining an internal containment volume and including a free edge, a closing element including a welding layer welded onto the free edge of the wall and a front layer defining an outer surface of the container. An intermediate layer of removable self-adhesive is spread onto an adhesion portion of mutually coupled surfaces of the welding layer and front layer. An opening line adapted to define an access window is obtained through an incision in a stretch of thickness of the welding layer splitting the welding layer into a welding portion adapted to be welded to the container and an opening portion corresponding to the access window, with reference to an assembled configuration on the container. The incision is made to allow the detachment of the opening portion from the welding portion while the closing element is opened.

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.