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EVF11620

Tamper-Evident Glued-End Carton with Tear Strip

Available in a wide range of custom configurations & material selection.
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Product details

Top highlights

Fully glued top and bottom closures for high security
Integrated tear strips for consumer opening
Requires automated gluing equipment for fulfillment

About this product

This high-security folding carton is designed for products that require visible proof of an unopened seal. Both the top and bottom ends are permanently glued shut during fulfillment, creating a flush, tamper-evident package that must be opened using the integrated perforated tear strips.

Because both ends require adhesive sealing after the product is loaded, this carton is built specifically for automated cartoning lines and is not recommended for manual hand-packing.

Common uses

Pharmaceuticals
High-value cosmetics
Electronics
E-commerce fulfillment
Software and media

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High-Security and Tamper-Evident Applications

Pharmaceuticals and Medical Devices

Regulatory requirements often demand clear tamper evidence. The fully glued ends and destructive tear-strip opening provide immediate visual proof if the package has been compromised before reaching the patient.

High-Value Retail and Electronics

For expensive cosmetics, small electronics, or software, the permanent seal prevents in-store tampering or product swapping. The flush ends also provide a clean, premium appearance on the shelf without exposed tuck tabs.

Secure E-Commerce Fulfillment

When shipping sensitive goods, the glued closures ensure the carton cannot easily pop open during transit or be discreetly opened and resealed before delivery.

Software and Media Licensing

For physical media or software keys that cannot be returned once opened, the destructive tear strip provides a clear boundary for return policies and license acceptance.

Industries Requiring Permanent Seals

Automated Packing Operations

This carton fits high-volume lines equipped with automated gluing stations. The straight-line side seam is pre-glued by the manufacturer, allowing the carton to be erected, loaded, and end-sealed efficiently by machine.

High-Security Supply Chains

Supply chains that require a strict chain of custody benefit from the permanent seal. Any attempt to access the product leaves obvious damage on the outer flaps.

Premium Retail Display

Brands looking for a minimalist aesthetic appreciate the flush top and bottom panels. Without tuck flaps or external security seals, the carton presents a clean, uninterrupted surface for branding.

When to Consider Tuck-End Alternatives

Hand Assembly and Low-Volume Packing

If your fulfillment team packs by hand, applying glue and holding pressure on both ends of this carton is slow and inconsistent. For manual operations, look at standard reverse-tuck or straight-tuck cartons, which can be secured with a clear tamper-evident label instead of adhesive.

Single-End Opening Needs

If the product only requires a tear strip on one end for consumer access, evaluate the EVF11602 variant. It simplifies the opening process while maintaining a glued closure on the opposite end.

Fulfillment Route and Material Choices

Board Grain and Tear Performance

The tear strip's reliability depends heavily on the board material. The grain direction of the paperboard must run parallel to the zipper to ensure a clean, straight tear. Testing physical samples with your chosen board is necessary before committing to a full production run.

Print Layout Around Glue Zones

The inner closure flaps are specially shaped to receive glue without adhering to the tear strip. Your artwork and finish layout must leave these specific glue zones free of varnish, foil, or slick coatings to ensure a strong, permanent bond on the packing line.

Fulfillment Route

Confirm that your packing facility has the necessary equipment to apply adhesive and compress both ends of the carton after loading. This design is not suitable for manual packing lines.

Zipper Pull Tab Sizing

The small pull tab that initiates the tear can be sized based on the board thickness and the target consumer. Thicker boards or specific accessibility needs may require a larger, more prominent tab.

Zipper and Flap Adjustments

Zipper Position and Width

The vertical placement of the tear strip and the width of the perforated band can be adjusted to suit the product's size and the desired opening experience.

Pull Tab Clearance

The small pull tab that initiates the tear can be extended to make it easier for consumers to grasp, which is especially useful for thicker board grades.

Inner Flap Taper

The trapezoidal shape of the inner flaps can be modified to balance the required glue surface area with the necessary clearance for the tear strip.

Packing details

Inner Flap Clearance for the Zipper

The inner flaps of this carton are cut into a trapezoidal shape. This specific geometry provides enough surface area for a secure glue bond while keeping adhesive away from the perforated tear strip, ensuring the zipper functions smoothly when pulled.

Additional notes

Delivery and Storage

These cartons are delivered knocked-down flat. The manufacturer glues the main side seam, leaving the top and bottom open for your automated line to erect, load, and seal.

FAQs

Can this carton be packed and sealed by hand?

It is inefficient for manual packing. Because both the top and bottom ends must be glued shut after the product is inserted, it requires automated cartoning equipment to seal properly.

How does the tear strip work without getting glued shut?

The inner flaps that sit beneath the tear strip are cut into a specific trapezoidal shape. This leaves a gap directly behind the perforations, ensuring that when glue is applied, it bonds the flaps together without adhering to the zipper itself.

What board types support the tear strip?

Standard folding boxboards or solid bleached boards perform well, but the main factor is grain direction. The grain must run parallel to the perforations for a clean tear. Testing physical prototypes with your exact board choice is necessary to verify the opening experience.

Can I apply a gloss coating over the entire carton?

Gloss coatings must be kept off the glue zones. The areas where adhesive will be applied during fulfillment must remain unvarnished and uncoated. Applying slick finishes to the glue zones will prevent the ends from sealing properly on your packing line.

Does the tear strip affect the structural strength of the carton?

The perforations do introduce a weak point in the outer flap, but the double-wall construction created by the glued inner and outer flaps maintains the overall rigidity of the sealed end.

Can the zipper be placed anywhere on the outer flap?

The zipper position can be adjusted, but it must remain aligned with the cutaways on the inner flaps. If the zipper overlaps the glue zones, it will bind and fail to open properly.

What happens if the board grain runs the wrong way?

If the grain direction is perpendicular to the tear strip, the tear is likely to wander off the perforations or break halfway across the flap, creating a frustrating opening experience.

Is this carton considered child-resistant?

While the glued ends and tear strip provide tamper evidence, they are not designed or tested to meet child-resistant packaging standards.