What is the main principle of vacuum packaging bags?

advantage
1. Convenience: The zipper design makes it easy to open and close, making it easy to use multiple times.
2. Sealability: Good sealing performance effectively prevents moisture, dust, and pollution, prolonging the shelf life of the contents.
3. Durability: high-strength material, tear-resistant, wear-resistant, suitable for long-term use.
4. Transparency: Some bags are transparent, making it easy to view the contents without opening.
5. Environmentally friendly: reusable, reducing the waste of disposable packaging.
6. Diversity: A variety of sizes, shapes, and colors to meet different needs.
7. Printability: The surface is suitable for printing and can be used for brand promotion and information display.
main application
1. Food packaging: used for snacks, nuts, candies, etc., to keep them fresh.
2. Electronic product packaging: to protect small electronic components and accessories.
3. Cosmetic packaging: used for facial masks, cotton pads, etc., easy to carry.
4. Pharmaceutical packaging: used for medicines and medical apparatus to ensure hygiene.
5. Stationery packaging: Store stationery and documents and keep them clean.
6. Industrial packaging: for small parts, tools, easy to manage and transport.
7. Household goods: used to store clothing, toys, etc., saving space.
summarize
Zipper packaging bags are widely used in food, electronics, cosmetics, medicine, stationery, industry and home furnishings due to their convenience, sealing and durability.