Custom Seal End Tear Open and Lock
A sealed carton gives you tamper evidence and then leaves the customer with a torn end they cannot close again. Adding a locking tab beneath the perforation fixes that. It tears open cleanly and then relocks, so the pack stays usable across several sittings. We produce a lot of seal end tear open and lock work at ZEE Packaging and reclosability is what clients want from it.
Tears Once, Closes Again
A seal end tear open and lock does two things in sequence.
- The end is glued shut, giving tamper evidence
- A perforation tears away to open the carton
- A locking tab underneath then holds it closed
- The pack recloses across multiple uses
- No separate mechanism or component is involved
- Contents stay contained between openings
Most brands choosing a seal end tear open and lock sell products used over days rather than in one go.
Two Features To Get Right
The tear and the lock both need attention.
- Too fine a perforation opens in transit
- Too coarse and customers struggle to start it
- The tear must leave the locking tab intact
- A shallow lock will not hold after opening
- Board caliper affects both features at once
- We sample the tear and the reclose together
- Standard seal end tear open and lock the everyday build
- Full overlap version doubled board at the ends
- With a tuck and tongue lock a firmer reclose
- Window version showing product through a die cut
- With a die cut insert holding contents steady
- Food grade version for direct food contact
Sizes We Print Regular
Every seal end tear open and lock carton is built to your product, though these run often:
- 3" x 2" x 6" for a standard retail item
- 4" x 3" x 8" for a larger product
- 2" x 2" x 5" for a small format
- 6" x 4" x 9" for a bulkier item
- 5" x 3" x 7" for a mid size product
- 8" x 6" x 10" for a large carton
Send us the filled weight and your line spec, since both affect the build.
Board And Print
- SBS C1S at 18pt to 24pt for retail applications
- CCNB and duplex where a grey back is acceptable
- Kraft board for a natural position
- Matte, gloss and soft touch lamination
- Food grade certified stock where required
- Reinforced tab area for repeated reclosing
The locking tab wears with use. We reinforce it as standard, since a tab that gives up after three openings defeats the whole purpose.
Materials Worth Choosing
- Recycled board grades, widely available here
- FSC certified stock, certificate available on request
- Soy based ink through the whole run
- Water based adhesive on the sealed ends
- No plastic reclose mechanism needed
- Right sizing so no board is wasted per carton
What Ordering Involves Here
- 100 unit minimum, so a small brand can order properly
- Free 3D mockup and flat proof before anything prints
- Free dieline drawn by our own designer
- Physical sample on request to test the tear and reclose
- Urgent turnaround at 5 to 8 business days
- Free shipping worldwide with nothing hidden
Frequently Asked Questions
Why add the lock at all?
So the pack recloses. A plain sealed end leaves the customer with a torn carton they cannot shut again.
How many times will it reclose?
Ten or more with a reinforced tab. Without reinforcement it gives up considerably sooner.
Will it tear open in transit?
Not with a correctly specified perforation. Premature opening happens when the cut is too fine for the board.
How much does a seal end tear open and lock box cost?
Rough estimate is $0.22 to $0.65 per unit plain, $0.35 to $0.90 with print and $0.55 to $1.40 with finishing at moderate quantity. Volume moves it. Shipping is included in our price. This is estimate only, so ask our team for a exact quote.
Is it still tamper evident?
Yes, since the perforation has to be broken. That is the main advantage of a sealed end.
Is it suitable for food?
Yes, in food grade stock. Cereals, snacks and dry goods use this format constantly.
Does it need a separate mechanism?
No, the tab is cut from the board itself. Nothing extra is added.
