Various devices are done by the design of the box of the cookie seen always often over the detail.
The technology that is called "Double half cutting zipper" is used for the one that the re-seal performance is requested.
It is a stop part devised so that the lid should not open when after a box of cookie is opened and the lid are done.
The position is moved a little, and the incision is put from the front & back of paperboard to the half of the thickness. As a result, the interlayer of paper peels off and the lid opens.