3. Sealing sticky notes are suitable for the sealing of snack packaging, such as potato chips that we have eaten every day. It is also good to roll up the opening and use sticky notes to seal them directly. However, compared with non-adhesive sticky notes, the biggest problem is that its stickiness is not stable. It may be a bit like a disposable product. Therefore, after a long time, the sticky notes are easy to fall off. Its adhesive is also easy to dry, so if a sticky note is important, how to restore the stickiness? Generally, the simplest method is to apply it again with glue. In fact, the glue of the sticky note can be generally called a pressure-sensitive adhesive with repeatable sticking performance, ordinary paste-type glue, or double The surface glue can only be applied once, and it is very troublesome to remove it the first time. And if you want to restore the performance of the sticky notes, you can buy "sticky notes removable glue". This kind of building materials is basically not available in the market. If you want to buy it, you can only go to the online store. Its disadvantage is that it is expensive, but the advantages are It allows repetitive use of post-it notes. In addition to post-it notes, ordinary paper can also become a new kind of post-it note. You can buy paper by yourself and make your own DIY post-it notes through the cutting process.