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ECMA A10.11.03.03

Glued-End Carton with Overlapping Base

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Product details

Top highlights

Relies on external adhesive or tape for closure
Full overlapping bottom helps contain fine products
Designed for automated cartoning equipment

About this product

This folding carton is designed for automated packaging lines. It features a side-glued seam, a full overlapping bottom for a flat base, and a standard covering flap on top.

Because it lacks friction tucks or locking tabs, both ends rely on adhesive or tape applied during fulfillment to stay closed. This makes it a practical choice for tamper-evident retail packaging and granular products that benefit from a flat interior floor.

Common uses

High-volume retail goods
Granular or powdered products
Tamper-evident sealed packaging

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High-Volume and Fine-Product Packing Jobs

Automated Cartoning Lines

The plain, rectangular flaps are optimized for machine erection and adhesive sealing. This format runs efficiently at high speeds because there are no complex tucks or locks to engage.

Granular and Powdered Goods

The bottom features four flaps that overlap completely. When sealed, this creates a flat interior floor that helps contain fine products during transit or shelf display.

Tamper-Evident Retail Packaging

Because the carton must be sealed shut, opening it usually damages the flaps. This provides clear visual evidence if the package has been opened before purchase.

Lightweight Multi-Item Packing

The flat interior floor created by the overlapping base supports multiple small items without the snagging risks associated with internal tuck tabs.

Retail, Food, and Automated Production

High-Volume Consumer Goods

For products produced in large runs, the material efficiency of a simple glued carton combined with the speed of automated filling often outweighs the investment in cartoning equipment.

Dry Food and Baking Products

The overlapping base provides better containment for dry mixes, powders, and grains compared to standard tuck-end cartons.

Pharmaceutical and Cosmetic Packaging

The requirement for external sealing naturally supports tamper-evident packaging strategies common in health and beauty channels.

When to Consider a Different Carton Style

Hand-packing operations

If the packing team assembles boxes by hand, applying adhesive or tape to both ends of every carton adds labor. A straight tuck carton or a crash-lock base will be faster to assemble manually.

Products requiring consumer reclosure

Once the sealed flaps are torn open, this carton cannot be securely reclosed. If the consumer needs to open and close the box multiple times, a reverse tuck or straight tuck style is a better fit.

Closure, Board, and Print Considerations

Fulfillment Sealing and Varnish Knockouts

The sealing method at fulfillment dictates the artwork layout. If using adhesive, the artwork file must include varnish-free zones on the flaps so the adhesive can bond directly to the paperboard.

Board Thickness and Grain Direction

The four overlapping bottom flaps create bulk. The exact board thickness determines the layer-step crease compensation, ensuring the carton folds squarely. Grain direction should run perpendicular to the main vertical creases to prevent the walls from bowing.

Adhesive Flap Width

The side glue flap width can be adjusted to match the specific requirements of the folder-gluer equipment used during production.

Top Flap Overlap

The length of the primary top covering flap can be adjusted based on the sealing equipment and the required surface area for adhesive application.

Flap Overlap and Layer Compensation

Layer Compensation (LSC)

For thicker boards, the creases on the overlapping bottom flaps are slightly offset. This allows the multiple layers of paperboard to fold flat against each other without stressing the hinges or distorting the base.

Glue Flap Width Adjustment

The side seam flap can be widened or narrowed to accommodate different production equipment or to provide a larger bonding area for heavier boards.

Top Flap Length

The primary covering flap on the top closure can be extended or reduced depending on the required sealing area and the specific automated closing machinery.

Board and packing details

Machine Envelope Verification

While this style is standard for automation, the knocked-down flat dimensions must be checked against the magazine limits of the specific cartoning equipment.

Top Closure Variations

Alternative Top Closures

While this template uses one full covering flap and three reduced flaps on top, variations exist with four reduced top flaps (A12.10.03.03) depending on how the equipment applies adhesive.

Additional notes

Tamper evidence through sealed flaps

Because opening a sealed flap typically tears the paperboard fibers, this style inherently deters tampering without requiring additional shrink bands or security labels.

FAQs

Closure and Sealing

Does this carton stay closed on its own?

No. The flaps are plain rectangles without friction locks or tuck tabs. They rely on adhesive, tape, or an outer wrap applied during fulfillment to remain closed.

Production Path

How is this carton delivered?

It is delivered knocked-down flat. The side seam is pre-glued, and the flat tubes are shipped to the facility for erection and loading.

Product Fit

Why use a full overlapping bottom instead of a tuck bottom?

The overlapping flaps create a flat interior floor and improve containment for fine or granular products, whereas tuck flaps can leave small gaps.

Packing Labor

Can this carton be packed by hand?

Yes, but it is generally slower than using a crash-lock or tuck carton because both ends require manual application of tape or adhesive.

Board and Finish

What board thicknesses work for this carton?

Standard folding boxboard is typical. Thicker boards require precise layer-step crease compensation so the overlapping bottom flaps fold squarely without bulging.

Print and Finish

How does the overlapping bottom affect the artwork?

If the carton will be sealed with adhesive, the artwork must include varnish-free zones on the overlapping areas to ensure a strong bond.

Consumer Use

Can the consumer easily reclose this box?

No. Because the flaps are sealed shut, opening the carton usually tears the paperboard fibers, making it difficult to reclose securely.

Adjustments

What prevents the overlapping bottom from bulging?

A structural adjustment called layer-step crease compensation slightly offsets the fold lines, allowing multiple layers of board to sit flat against each other.