At present, it is mainly used for postal packaging of products. The bubble bag is equipped with shock-absorbing bubble film. There are countless small bubbles in the bubble film, so it is light and elastic. It has the functions of sound insulation, shockproof and scratch proof. It is widely used in shock-proof cushioning and protective packaging of electronics, instruments, ceramics, handicrafts, household appliances, self-propelled car stores, kitchens, furniture, hardware tools, glass products and precision instruments.
It can prevent extrusion, vibration and friction of articles in the process of transmission, and has a certain protective effect on articles afraid of extrusion and compression. In addition, various special bubble bags such as anti-static can be manufactured by adding different additives to the raw materials. The anti-static air cushion bag is used for packaging electronic components and components, such as integrated circuit boards and cards, which can not only prevent static electricity, but also play the role of cushioning and shockproof.
The use requirements of PE protective film are mainly in the following points
1. Good weather resistance: under the condition of sunlight exposure, the service life is up to half a year to one year;
2. The stripping force is stable: the change over time is small, that is, the smaller the increase of stripping force, the better;
3. Suitable viscosity: easy to stick and tear;
4. Long storage period: stored in the warehouse for more than one year without any change in quality;
5. Excellent mechanical properties: meet the user's requirements of tensile strength, elastic modulus, elongation, etc.
6. No pollution and corrosion: the adhesive is inert and will not react with the surface of the bonded material;
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