Protection film

Abstract

The invention relates to a protection film. The protection film comprises a non-adhesive layer and an adhesive layer, and the non-adhesive layer comprises a surface layer and an intermediate layer; the surface layer of the non-adhesive layer uses a mixture containing homo-polypropylene (H-PP) and low density polyethylene (LDPE), the intermediate layer uses a mixture containing high density polyethylene (HDPE) and the low density polyethylene (LDPE)in a series of polyethylene (PE), and the adhesive layer is made by adding a low hardness plastic to a thermoplastic elastomer. The protection filmavoids the problem of melt adhesion due to cutter processing in the application process, and the good pasting and covering property and the uncoiling property of the protection film are ensured.

Description

technical field [0001] The present invention relates to a protective film, especially a protective film that can be cut during application without sticking, and has a good sticking effect on the object. Background technique [0002] By the way, many products are covered with a protective film on their appearance. By sticking the protective film on the surface of the article, the article will not be stained with dirt, and will not be easily scratched. [0003] like figure 1 As shown, the known protective film 1 has a surface layer 11, an intermediate layer 12 and an adhesive layer 13, wherein the surface layer 11 and the intermediate layer 12 are substrates made of a PE material, and a surface of the surface layer 11 is relatively Connected to the middle layer 12 , and a surface of the middle layer 12 is coated with a high-viscosity adhesive to form an adhesive layer 13 . The high-viscosity adhesive of the adhesive layer 12 can be pasted on the surface of the article, so t...

AI Technical Summary

Problems solved by technology

[0004] However, the protective film 1 can be applied to many occasions and articles, especially, it is widely used in optical plates and optical films, such as figure 2 As shown, the covered objects A of these articles are actually stacked together in order to facilitate the production and processing process, and when they are stacked on each other and then processed by tools such as punching, cutting or polishing, it is extremely It is easy to cause the surface layer 11 in the protective film 1 to melt and the middle layer 12 to produce burrs, and eventually the two protective films 1 will stick to each other. will be set off together, such as image 3 As shown, making its operation troubled, seriously affecting the smooth production process

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