1. The self-sealing bag is too tight to open. We can use the friction force. The two friction forces are parallel to the bag mouth and act on both sides of the bag mouth in opposite directions. Under the action of friction, there will be one opening at both ends of the bag mouth. When you put a hard object in the mouth, the bag will open. Of course, be careful not to scratch the contents of the bag.
2. Self-sealing bag is a kind of packaging bag that can be pressed and sealed automatically. There are usually compact bags, keel bags, zipper bags, etc.
3. Self-sealing bags, also known as compact bags, bone-sticking bags, sealing bags, zipper bags, keel bags, are made of polyethylene and high-pressure linear polyethylene by blowing film and hot-cutting machine bags, which can be repeatedly sealed. Common materials include PE PO EVA, multi-layer composite zipper bag, etc.
4. Self-sealing bags can be used for internal and external packaging of various small items (jewelry, hardware, toys). Self-sealing bags made from food-grade raw materials can store all kinds of small foods, tea, seafood, etc., moisture-proof, anti-smelling, waterproof, insect-proof, and prevent things from scattering; Self-sealing bags can also be used for packaging clothing and other daily necessities, with a wide range of uses. Anti-static self-sealing bag can be produced by adding anti-static masterbatch during film blowing production, which is generally used in the electronic industry.
5. There are two kinds of production of chain clamping self-sealing bags. One is direct film blowing molding. The height above the self-sealing is generally 1,8cm. The thickness near the self-sealing is relatively thick. The left and right sides of the self-sealing bags are made into finished products by hot-cutting sealing; The other is the method of attaching chain to the back, which is mainly used for the production of composite bags.
These are the tips for manual sealing of self-sealing bags. I hope they can help you. For more information about relevant matters, please visit our website https://epochpackage.com/