A tear notch is one of the smallest features in packaging and one of the most noticed. It is a tiny cut in the sealed edge of a pouch or sachet that gives a fingernail somewhere to start. Without it, a customer needs scissors, and a pack that needs scissors is a pack that gets remembered for the wrong reason.
The notch starts the tear, the film finishes it
This is the part that surprises people. The notch only creates the initiation point. Where the tear travels is decided by the film structure. Oriented films have their molecules aligned in a direction, and they tear along that direction fairly predictably. Films without that orientation tear wherever the stress happens to go, which is why some pouches open in a neat line and others open diagonally into the product. If a clean straight opening matters to you, the conversation to have is about the film structure, not only the notch.
The common notch types
| Type | How it is made | Character |
|---|---|---|
| V notch | A small triangular cut into the seal edge | The most common, easy to find by feel, initiates reliably |
| Straight slit | A single short cut into the seal | Discreet, neat appearance, slightly harder to locate by touch |
| Round or U notch | A curved cut into the seal | Gentler on the seal edge, common where the seal is wide |
| Laser score | A shallow line scored into the film surface | Controls the tear path itself rather than only the start point, useful when the film would otherwise wander |
Where to put it
Three placement rules cover nearly every case. First, the notch must be entirely inside the sealed area, because a cut that reaches the product chamber is a leak. Second, place it above the fill line with enough headspace that opening the pack does not immediately spill contents. Third, think about which hand opens it and whether the pack is standing or lying, then put the notch where a person's thumb naturally arrives.
If the pack has a zipper or a reclose feature, the notch goes above it, so the customer tears off the top strip and the zipper below remains intact. Get that wrong and the pack becomes single use no matter what the zipper cost.
What to specify on a quote
- Notch type and roughly where you want it, or describe how the pack is opened and let it be recommended
- Whether a straight, predictable tear path is a requirement or a nice to have
- Whether the pack recloses, and where the reclose feature sits relative to the notch
- Headspace above the fill line, since that sets how far down the notch can go
- Whether the pack needs child-resistant features. These are available on request. We do not certify compliance; confirm requirements for your jurisdiction and product.
Ordering
Minimum order is 100 units. Price starts from about $0.48 per unit at bulk volumes and is confirmed on your written quote, since film structure, print and any reclose feature all move it. Design support, US shipping and a digital proof before anything prints are included. Production runs from West Chicago in the US and Guangzhou in China, in three lanes: rush (expedited production plus air freight, a premium of about 7 to 25% depending on the job), standard (air) and cost saver (sea), from about 7 business days, plus 2 to 5 for delivery, with specialty imported items running up to about 12 weeks.
For flexible formats that commonly carry a notch, see mylar bags and flat pouches. Before a production run, how to test packaging before a big run is worth reading, because a tear notch is something you only truly evaluate by handing a filled pack to someone and watching them open it. Send your film preference and your opening requirement through the quote form.
