Tamper-Evident Seals for Food Packaging

A paperboard food container with a tamper-evident closure that provides an alternative to plastic containers without the same disposal issues. The paperboard container has a receptacle with an opening and a closure that spans the opening. The closure has a tamper-evident feature like a split region that irreversibly opens when separated. The closure also has a tab that can be moved from overlapping the closure surface to being spaced away. This allows easy opening but also shows if the closure has been tampered with.

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Flexible packaging with a reclosable opening, pull tab, and tamper evidence. The packaging has a score line defining an opening flap that separates from the rest of the structure. A second score line in the inner structure joins to the flap. A tab with score lines connects to the flap. When the flap is lifted, the inner section lifts too. The score lines allow reclosing without tearing. The tab detaches, revealing a tear in the connection. This indicates the package has been opened.

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A tamper evident blister package that provides visual indication of product opening and tampering. The package has a blister assembly with a cavity closed by a membrane. A sleeve houses the blister with a contact window aligned with the cavity. A package integrity feature is applied over the contact window and also through the membrane in the cavity. This feature covers the contact window and seals the cavity opening. If the blister is opened, the integrity feature will be broken. Printing an origin/manufacture indicia over the feature and window allows verification of tampering.

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Tamper-evident food container with a release flap and closure tab that visually indicate if the container has been opened. The container has a body portion and cover portion joined together. The body portion has a closure tab extending from a side wall with a flap and base. The cover has a release flap. When the container is closed, the release flap folds over the closure tab base to secure it. But if the container is opened, the release flap remains in the open position, exposing torn edges of the closure tab flap. This shows the container has been opened. The closure tab can still be used to close the container. The release flap and closure tab angles are offset for visual contrast.

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A packaging box with a tamper-evident seal to prevent resetting and unauthorized opening. The box has an inner cavity with a removable cover. The cover has a hand-tearable part that can be easily separated. The cover attaches to the box side and is held by an insertion in the support. This prevents resetting by just closing the cover. If the cover is removed, the torn part is visible, indicating the box has been opened.

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A tamper evidence closure for plastic bottles that provides visible indications to users if the bottle has been opened and resealed. The closure has breakable tabs that connect to the bottle neck. When the closure is removed, the tabs snap off, leaving behind visible evidence that the bottle has been opened. This discourages refilling and reselling of used bottles. The closure also has features like outward flaring cams that provide further visual indications when the closure is loosened.

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Flexible packaging with built-in opening, reclosing, and tamper evidence features. The packaging has a laminate structure with one side scored to create a flap that can be lifted to open the package. The flap can be reattached to close the package. The scoring penetrates through one layer but not the other, preventing complete closure. Tear portions in the flap tab or interrupted areas indicate opening. Pressure-sensitive adhesive is pattern applied on one side with permanent adhesive on the other to join the structures. This allows reclosing without labels or liners. The scoring pattern forms tamper evidence since partial closure is visible.

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A tamper-evident, sealable bag with an integrated note tab for food delivery that allows consumers to verify the bag has not been opened and the contents have not been tampered with. The bag has a movable upper closure that seals when closed and provides a tab for easy opening. An upper lateral portion extends above the closure and has adhesive to seal the bag. A note tab is integrated into the upper section below the lateral portion. When the closure is closed, the note tab remains accessible for attaching notes. This allows easy viewing of the order info without opening the bag.

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A tamper evident pizza box that allows customers to visually detect if their pizza has been opened without their knowledge. The box has a locking tab and slot mechanism to keep it closed. A frangible release assembly has sections that tear apart when pulled, exposing the locking tab to release the lid. This allows opening the box but also shows visible damage if it has been tampered with before delivery.

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Tamper-evident food container with easy closure and visual tamper indication. The container has a closure system with a movable coupling portion that folds to engage a fixed portion. When the container is opened, the movable portion separates, leaving a visible sign of tampering. The container also has features to prevent product mixing and allow venting. The container walls are formed by folding and die-cutting a single sheet.

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A tamper-evident food carton with a moveable lid that can be securely locked in place. The carton has a lid flap that folds over the opening. The flap has a tear strip that allows it to be removed. When the lid is closed, the flap is locked into position by tabs interlocking with receiving tabs on the side panels. Removing the tear strip separates the flap from the side panel, allowing the lid to be opened. This provides visual evidence if the carton has been tampered with. The locked lid prevents unauthorized access.

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Tamper-evident food container with a loop of tear line around the lid that leaves evidence if opened illegally. The loop is easy to tear open by the user but leaves a visible break if tampered with. The lid has a force application structure inside the loop area for the user to apply force to break the line. This allows legitimate opening while leaving evidence if tampered. The lid can also have a tableware accommodating structure inside the loop area.

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Tamper evidence bridge on a plastic bottle cap that provides visible indication when the cap has been removed. The bridge is a small tab extending from the bottom of the cap to the neck ring. It breaks when the cap is twisted off. This leaves visible remnants on the neck ring, showing the cap has been opened. It deters reusing bottles by making it obvious if a cap has been removed by someone other than the manufacturer.

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Transparent, one-piece, tamper-resistant/evident container for packaging food products with a cover portion, base portion, and hinge that connects them. The hinge has a frangible section that breaks when the container is opened. The cover flange abuts the base rim when closed, preventing opening. The rim extends beyond the flange to deter manual opening. This provides tamper-evident sealing and deterrence. The container can also have features like vents, locking mechanisms, and beading to enhance functionality and tamper resistance.

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Tamper-evident closure for containers like fruit juice pouches that visually indicates if the container has been opened and resealed. The closure has a cap with tabs that swing outwardly and fold when the cap is rotated to seal the container. This provides a visual indicator that the container has been opened. The tabs have projections that engage with projections on the straw when sealed, but swing outwardly and fold when the cap is rotated with force. This breaks a segment in the tab. The swinging and folding tabs provide a visible sign that the container has been opened and resealed.

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Packaging having a tamper-evident seal that allows for a packaging to be opened and removed and increase recyclability. The seal includes a paper substrate, a first adhesive portion configured to attach to a side panel of a base box, a second adhesive portion configured to attach to a second side panel of a lid, and a tamper-evident seal disposed between the first and second side panels when the packaging is closed.

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Packaging with a removable, tearable tamper-evident seal that maintains integrity prior to opening but allows easy recycling of the package. The seal is made of paper and attaches to the sides of the base box and lid. It has a tab that extends outside the package. Pulling the tab tears the seal apart but leaves the adhesive on the box and lid intact, indicating the package has not been opened. This allows customers to check for tampering and recyclers to easily separate the seal from the cardboard.

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One-piece, transparent, plastic food container with tamper-resistant and tamper-evident features. The container has a cover with an outwardly extending flange and a base with an upper rim. A hinge joins them, with a frangible section that breaks when the container is opened. When closed, the flange abuts the rim and the rim extends beyond the flange to deter opening. This provides tamper-resistance. The hinge height matches the flange height. The container also has a lock to maintain the flange against the rim. The frangible hinge section has weak lines that break when force is applied to open the container. This leaves visible evidence of tampering.

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Tamper evident blister packaging for products like medicines and food that provides visual indication of product opening to detect tampering. The packaging has a blister assembly with cavities containing the product, and a sleeve housing the blisters. A window on the bottom of the sleeve aligns with the blister cavities. A tamper feature is applied over the window and also on the blister membrane through the window. This allows seeing if the membrane was cut to access the product.

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Tamper-proof seal for containers like bottles and jars that leaves a visual evidence of tampering. The seal has a cylindrical member, locking member, sealing member, tapered threaded members, and perforated member. The cylindrical member goes around the container opening. The locking member locks onto the cylindrical member. The sealing member seals against the container. The threaded members engage the container threads. The perforated member has vertical paths through it. When the seal is intact, the perforations are hidden. If the seal is opened, the perforations are exposed. This visually indicates tampering.

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